Including Plural Loads Commonly Controlled Patents (Class 323/267)
  • Patent number: 10691153
    Abstract: A circuit comprising a first driver having an input, an output and a power input, and a first regulator having an input, an output coupled to the first driver, and an adjustment control configured to control a voltage of the first regulator. A second driver having an input, an output and a power input, and a second regulator having an input, an output coupled to the second driver, and an adjustment control configured to control a voltage of the second regulator. A first impedance coupled to the adjustment control of the first regulator and configured to selectably increase or decrease the voltage of the first regulator.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: June 23, 2020
    Assignee: DELL PRODUCTS L.P.
    Inventor: Meng-Ru Tsai
  • Patent number: 10658943
    Abstract: An input power conditioning circuit (PCC) for a switched-mode power converter includes a hybrid full wave rectifier. Hybrid rectification is provided by a main rectifier and a matched virtual junction (VJ) rectifier, both with four-transistor gate fully cross-coupled. The VJ rectifier includes a voltage divider (such as a resistive voltage divider) to generate a virtual junction reference voltage VJ_ref (which can be less than transistor Vth). A power conversion controller (such as a boost controller) includes circuitry (such as an error amplifier) to regulate the input voltage VIN (main rectifier) to be substantially equal to VJ_ref from the VJ rectifier. Hybrid rectification, with VIN regulation, can be used to eliminate reverse (flow back) current, improving power conversion efficiency.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: May 19, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORED
    Inventors: Jiyuan Luan, Michael Oye
  • Patent number: 10651797
    Abstract: An apparatus includes a first amplifier, a second amplifier, and a compensation-setting generator to generate a first amplifier compensation setting and second amplifier compensation setting. A controller is operable to: i) apply the first amplifier compensation setting to the first amplifier and apply the second amplifier compensation setting to the second amplifier. The controller is further operable to switch between generating updates to the first amplifier compensation setting and the second amplifier compensation setting.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: May 12, 2020
    Assignee: Infineon Technologies Austria AG
    Inventors: Keng Chen, Luca Petruzzi
  • Patent number: 10608540
    Abstract: A smart power supply system is provided. An input end connecting to a power supply provides power to a control module, so that the control module can receive an application voltage range from an electronic product, and then control a power module according to the application voltage range to make an output voltage value of an output end increased gradually according to the application voltage range from low to high. In the process that the output voltage value of the output end is increased gradually, the control module detects an input voltage value and an input current value and the output voltage value to calculate and store an input power correspondingly, and then control the power module according to the output voltage value, which corresponds to the minimum input power of the stored input powers to make the output voltage value of the output end be an optimum voltage value.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: March 31, 2020
    Assignee: Moxa Inc.
    Inventors: Wei-Chun Lu, Ting-Ta Yu
  • Patent number: 10591966
    Abstract: An apparatus, method, and system for actively controlling power in a series string load is provided. A number of conventional low-cost power supply units energize a number of voltage-regulation modules (VRMs) connected to each other in series. Each VRM generates a regulated output voltage using a pulse-wave modulated switching circuit, and provides the regulated output voltage to a number of load elements. Each VRM also sends signals to a central controller describing the output voltage applied to its connected load elements, and adjusts the output voltage applied to its connected load elements in response to signals received from the central controller. The supply voltage provided to individual load elements may thus be accurately and dynamically controlled during operation. Each load element may comprise a light-emitting device, a microprocessor, or a cryptographic integrated circuit with a plurality of processing cores. Optocouplers or load-shifters send signals across different supply voltage domains.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: March 17, 2020
    Assignee: Blockchain ASICS LLC
    Inventors: Edward L. Rodriguez De Castro, Sagar V. Reddy
  • Patent number: 10585411
    Abstract: Method and apparatus are disclosed for controlling a vehicle power supply using serial communication. An example vehicle power system includes a host controller configured to supply a slave controller with a first voltage. The vehicle power system also includes the slave controller. The slave controller is configured to determine a received voltage, determine a difference between the received voltage and a nominal operating voltage, and transmit the difference to the host controller. The host controller is then configured to modify the first voltage based on the difference.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: March 10, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Alan Peter Norton, Ronald Eric Zlotnik
  • Patent number: 10505454
    Abstract: The overall performance of single input multiple output (SIMO) switching DC-DC power converters may be improved by controlling power and output switches to adjust inductor current delivered to one output while maintaining substantially constant the current delivered to other outputs, thereby reducing cross regulation interference across outputs. Power converter systems of this disclosure may be configured to calculate an inductor current value and a duty cycle value based on voltages at each of the voltage outputs. The power converter systems may be configured to control at least one main power switch to increase or decrease the current in the inductor based on the calculated inductor current value. Additionally, the power converter systems may be configured to control at least one output power switch to divert current from the inductor to one of the plurality of output nodes based on the calculated duty cycle value.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: December 10, 2019
    Assignee: Cirrus Logic, Inc.
    Inventors: Xin Zhao, John L. Melanson, Eric King, Xiaofan Fei
  • Patent number: 10476385
    Abstract: A DC-DC converter system (1, 1?) according to the invention is provided with an input (In) for feeding in an input voltage (U_in), a step-up controller section (2) for increasing the input voltage (U_in) in a controlled manner to a controlled first output voltage (U_out1) and for providing the first output voltage (U_out1) at a first supply output (Out1), and a voltage conversion section (3) for converting the input voltage (U_in) into a second output voltage (U_out2) in a manner controlled by a control device of the step-up controller section (2) and for providing the second output voltage (U_out2) at a second supply output (Out2). The DC-DC converter system (1) according to the invention having two supply outputs (Out1, Out2) is based on an expansion of a step-up controller with a SEPIC circuit, wherein the DC-DC converter system comprises only a single control device (S1) and a switching device (T1) which can be controlled by the control device.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: November 12, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Joerg Koniakowsky, Stefan Aldinger
  • Patent number: 10447161
    Abstract: In an example, a dual-phase inverting buck-boost power converter for use with at least first and second energy storage elements includes an inverting buck-boost power converter and an inverting boost converter. In an example, the inverting buck-boost power converter is coupled between an input node and an output node of the dual-phase inverting buck-boost power converter and includes a first plurality of switches operable to couple to the first energy storage element, wherein the inverting buck-boost power converter is operable to supply a first load current. In an example, the inverting boost converter is coupled in parallel with the inverting buck-boost power converter between the input node and the output node of the dual-phase inverting buck-boost power converter and includes a second plurality of switches operable to couple to the first and the second energy storage elements, wherein the inverting boost converter is operable to supply a second load current.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: October 15, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Erich Bayer, Ivan Shumkov, Nicola Rasera, Stefan Reithmaier, Roland Bucksch, Christian Rott, Florian Neveu
  • Patent number: 10447163
    Abstract: In a DC/DC converter, when stepping up voltage from an input unit to an output unit or when stepping down voltage from the output unit to the input unit, a second driver IC outputs to a charge pump circuit a control signal for controlling a switching element so as to alternately repeat ON/OFF when a switching element is ON and a switching element is OFF. When stepping up voltage from the output unit to the input unit or when stepping down voltage from the input unit to the output unit, a first driver IC outputs to the charge pump circuit a control signal for controlling the switching element so as to alternately repeat ON/OFF when a switching element is ON and the switching element is OFF. As a result, the DC/DC converter can drive the charge pump circuit without providing an oscillation circuit.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: October 15, 2019
    Assignee: YAZAKI CORPORATION
    Inventors: Keisuke Kanda, Michito Enomoto, Shingo Suzuki
  • Patent number: 10432023
    Abstract: A contactless card is powered by an antenna connected to the input of a rectifier. An output of the rectifier is coupled to a processing unit that consumes a first current output from the rectifier. A current regulation circuit is connected to the output of the rectifier. The current regulation circuit operates to absorb a second current from the output of the rectifier such that a sum of the first and second currents is a constant current.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: October 1, 2019
    Assignee: STMicroelectronics SA
    Inventor: Julien Goulier
  • Patent number: 10416696
    Abstract: A power supply device includes an input terminal, a regulated voltage output terminal, a switch, a first transistor, and a current split circuit. The input terminal receives a first control voltage. The regulated voltage output terminal outputs an output voltage. The switch has a first terminal coupled to the input terminal, a second terminal, and a control terminal. The first transistor has a first terminal coupled to a voltage terminal, a second terminal coupled to the regulated voltage output terminal, and a control terminal coupled to the second terminal of the switch. The current split circuit is coupled to the voltage terminal and the regulated voltage output terminal. The current split circuit receives the first control voltage or a second control voltage, and includes a second transistor coupled between the voltage terminal and the regulated voltage output terminal.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: September 17, 2019
    Assignee: RichWave Technology Corp.
    Inventors: Chih-Sheng Chen, Tien-Yun Peng
  • Patent number: 10353449
    Abstract: In accordance with some embodiments, margining routines to determine acceptable voltage command values for specific CPU implementations at one or more different operating levels may be provided.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: July 16, 2019
    Assignee: Intel Corporation
    Inventors: Son Lam, Henry W. Koertzen, Joseph Dibene, II, Steven D. Patzer
  • Patent number: 10322687
    Abstract: The present disclosure relates to electrical systems in general and embodiments of the teachings may include stabilization circuits for a vehicle electrical system comprising: a first connection for a first electrical system branch; a second connection for a pole of a first energy store of the first electrical system branch; a third connection for a second electrical system branch; a fourth connection for a third electrical system branch; a grounding connection for connection of the stabilization circuit to ground; a second energy store; a third energy store; a serial disconnection switch element between the second connection and the grounding connection; and a decoupling switch element connecting the first connection to the fourth connection. The second energy store is connected between the grounding connection and the third connection. The third connection is connected via the third energy store and a first converter to the fourth connection.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: June 18, 2019
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventor: Dirk Reichow
  • Patent number: 10291163
    Abstract: A voltage regulator includes an output transistor, an error amplifier coupled to the output transistor, a cascode transistor coupled to the output transistor in series, and a cascode bias circuit coupled to the cascode transistor and the output transistor. The output transistor is configured to generate an output signal at a first voltage. The error amplifier is configured to receive a reference signal. The cascode bias circuit is configured to bias the cascode transistor such that, in response to a drain-to-source short circuit of the output transistor, the cascode transistor generates the output signal at the first voltage.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: May 14, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Alejandro Vera, Shyamsunder Balasubramanian, Toshio Yamanaka, Toru Tanaka
  • Patent number: 10238418
    Abstract: An integrated catheter placement system and method for placing a catheter in a patient body. The system may include a system console having a display, a tip location sensor operably connected to the system console and placed onto a body of a patient. The tip location sensor may be designed to sense a magnetic field of a first medical device. The system may also include an ECG tip confirmation component operably connected to the system console via the tip location sensor, and an ultrasound probe operably connected to the system console, the ultrasound probe including one or more magnetic sensors designed to sense a magnetic field of a second medical device different from the first medical device. The system may further include a processor associated with the console designed to utilize data relating to the magnetic field of the second medical device to determine a position and/or orientation thereof.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: March 26, 2019
    Assignee: C. R. Bard, Inc.
    Inventors: Jeremy B. Cox, Jiaye Z. Jho, Robert N. Golden
  • Patent number: 10224711
    Abstract: Device for protecting against leakage currents, the device being intended to be wired up between a first electrical connection (2) and a second electrical connection (3). The device comprises a switch (5) configured so as to at least partially divert the current flowing in the first electrical connection and controlled by the voltage of the first electrical connection.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: March 5, 2019
    Assignee: Zodiac Aero Electric
    Inventors: Stéphane Guenot, Loic Aoustin, Jean-Clair Pradier
  • Patent number: 10199936
    Abstract: Pre-conditioners (or line-conditioners) are used to convert electrical power having first characteristics into electrical power having second characteristics. For example, a pre-conditioner may connect electrical equipment forming a load, which requiring only a conventional mains supply level to a utility three-phase supply. This means that the power components of the load may be de-rated, making the load electrical equipment cheaper. Such circuits may be further improved. Components in the down-converter itself still need to be rated to interface with the higher voltage. An approach is proposed in which two interleaved down-converters (36, 38) can be used to supply voltages. An energy recovery element (50) connects snubbers of the interleaved down-converters, thus enabling some de-rating of the pre-conditioner circuitry.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: February 5, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Peter Luerkens, Albert Garcia Tormo, Bernd Ackermann
  • Patent number: 10164533
    Abstract: The present invention relates to a converter circuit (1) for reducing a nominal capacitor voltage, the converter circuit (1) comprising: an input node (TI1), which is configured to receive an input voltage (VG); an output node (TO1; TO2), which is configured to supply an output voltage (VO) to a load (RL1; RL2); and a capacitor (C1; C2), which is coupled to the load so that the input voltage is divided between the capacitor (C1; C2) and the load (RL1; RL2) and which is configured to be charged up to a voltage corresponding to a differential voltage between the input voltage (VG) and the output voltage (VO).
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: December 25, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Albert Garcia Tormo, Peter Lürkens
  • Patent number: 10101759
    Abstract: Provided are an electronic circuit, a linear regulating circuit, and a DC-DC converting circuit. An embodiment of the inventive concept includes a linear regulating circuit unit for generating, by comparing output voltages and corresponding reference voltages, a transient signal indicating that at least one of the output voltages is in a transient state, or a steady signal indicating that each of the output voltages is in a steady state, and for controlling the output voltages on the basis of the steady signal and the transient signal, an energy storing unit for storing energy used to generate the output voltages, a ground switch unit for controlling connection between the energy storing unit and a ground terminal, an input switch unit for controlling connection between at least one input terminal and the energy storing unit, and an output switch unit for controlling connection between output loads and the energy storing unit.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: October 16, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jong Pil Im, Jung Hee Suk, Yil Suk Yang, Jimin Oh
  • Patent number: 10009030
    Abstract: An integrated circuit embedded in a plug of a universal serial bus (USB) 3.1 type-C cable assembly is disclosed. The integrated circuit includes a first pin connected to an operation transmission line through which an operation voltage is transmitted, a second pin connected to a configuration channel (CC) line, a first resistor connected to the first pin, a ground line, and a switching circuit configured to connect the first resistor and the ground line using a channel voltage supplied to the second pin when the operation voltage is not applied, and disconnect the first resistor from the ground line based on the operation voltage.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: June 26, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Je Kook Kim, Jin Hyuck Yu, You So Cheon
  • Patent number: 10001794
    Abstract: A voltage regulator is provided comprising: a pass transistor that includes a first node coupled to receive an input voltage and a second node coupled to provide a regulated voltage and a control node; an amplifier circuit coupled to produce a control voltage on a control line that is coupled to control a voltage at the control node of the pass transistor, based at least in part upon a reference voltage and the regulated voltage; a switch configured to transition between a first switch state in which the switch couples the control line to a turn-off voltage having a value to turn off the pass transistor and a second switch state in which the switch decouples the control line from the turn-off voltage; and a switch control circuit configured to maintain the switch in the first switch state during a first time interval while the input voltage ramps up and to transition the switch to the second switch state after the first time interval.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: June 19, 2018
    Assignee: Analog Devices, Inc.
    Inventor: Piotr Olejarz
  • Patent number: 9996146
    Abstract: The present invention relates to an information processing apparatus including a power supply part and a voltage compensating circuit. The power supply part is configured to supply electric power to a first electronic device and a second electronic device. The voltage compensating circuit is configured, when the first electronic device is connected to the information processing apparatus, to increase a voltage output from the power supply part and to switch a power supply path for supplying the output voltage to the second electronic device from a first power supply path to a second power supply path including a step-down element so as to decrease the increased output voltage and to supply the decreased output voltage to the second electronic device.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: June 12, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yuichi Hagiwara
  • Patent number: 9933744
    Abstract: A power supply includes a first switching unit, a power restriction unit connected between the first switching unit and a load, a second switching unit connected between the power restriction unit and the load, a controller configured to output a control signal to the first switching unit and the second switching unit, and an adjusting unit configured to adjust input of the control signal to the second switching unit, and the second switching unit is operated selectively in accordance with the control signal.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: April 3, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryo Matsumura, Hiroshi Yadoiwa
  • Patent number: 9935544
    Abstract: A method for transferring power between two DC circuits, each circuit being bipolar or connected at the midpoint thereof, involves: coupling the high voltage bus across a pair of inductors, arranged in parallel; coupling the low voltage bus across the pair of inductors; coupling the high voltage bus, the low voltage bus and the inductors by active switches and diodes, to provide for: (i) a storage configuration, wherein energy is transferred from one of the buses and stored in the inductors; and (ii) a release configuration, wherein energy is released from the inductors and transferred to the other of the buses.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: April 3, 2018
    Assignee: Arda Power Inc.
    Inventors: Luis Zubieta, Damien Frost
  • Patent number: 9907021
    Abstract: A method includes identifying, by a wireless communications module included in a communications device and when a Wireless Fidelity (Wi-Fi) mode of the communications device is already enabled, whether service data to be sent exists currently. The method further includes acquiring, by the wireless communications module, received attribute information in response to the service data existing currently. The method further includes determining, by the wireless communications module by using the received attribute information, a sending rate for sending the service data; and determining, by the wireless communications module according to the sending rate, a supply voltage value of a power amplifier connected to the wireless communications module, so that the power amplifier amplifies, according to the supply voltage value, a service request signal carrying the service data.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: February 27, 2018
    Assignee: Huawei Device (Dongguan) Co., Ltd.
    Inventors: Tongbo Wang, Zhihua Pang, Yingming Tang
  • Patent number: 9841777
    Abstract: A voltage regulator for digital loads combines a closed loop regulation circuit with an open loop topology. A transistor and a bank of transistors share the same voltage source VDD and gate control current. Each of the bank of transistors is sized to match different current load requirements and one or more may be switched in or out as appropriate when the digital load transitions from one operating mode to another. The regulator has good DC load regulation and unconditional stability regardless of output capacitance.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: December 12, 2017
    Assignee: NXP USA, Inc.
    Inventors: Jerome Enjalbert, Joachim Kruecken, Jalal Ouaddah
  • Patent number: 9820229
    Abstract: Methods and apparatuses are described in which dynamic voltage and frequency scaling may be used to save power when processing packets in a wireless communications device. In some cases, inframe detection may allow the device to determine whether to transition from a first (e.g., lower) voltage level to a second (e.g., higher) voltage level to process one or more packets of a received frame. For some packet types the first voltage level may be maintained. In other cases, the device may determine a bandwidth to use from among multiple bandwidths supported by the device. The bandwidth may be determined based on channel conditions. A voltage level may be identified that corresponds to the determined bandwidth and a processing voltage may be scaled to the identified voltage level. The device may be configured to operate in wireless local area network (WLAN) and/or in a cellular network (e.g., LTE).
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: November 14, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Sandip Homchaudhuri, Joseph Duncan, Xiaoru Zhang, MeeLan Lee, Arunkumar Jayaraman, Derrick Chu Lin, Srenik Mehta
  • Patent number: 9787136
    Abstract: Examples disclose a system comprising a power supply, coupled to an output power and an auxiliary power. The system is further comprising a controller to interrupt the output power through a switch coupled to the output. The controller is to interrupt the output power based a determination the output power is below an output threshold. The controller is further to interrupt the auxiliary power coupled to the output. The controller is to interrupt the auxiliary power based on a determination the auxiliary power is below an auxiliary threshold. Additionally, the system discloses the switch is to disconnect the output power.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: October 10, 2017
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Daniel Humphrey, Mohamed Amin Bemat, Samantha Jean Castillo
  • Patent number: 9755631
    Abstract: Described is an apparatus which comprises: a power gate transistor coupled to an ungated power supply node and a gated power supply node, the power gate transistor having a gate terminal; a resistive device; a first transistor coupled in series with the resistive device together forming a pair, the first transistor also coupled to the gate terminal of the power gate transistor; a capacitive device coupled in parallel to the series coupled pair of the first transistor and resistive device; and a second transistor coupled to the gate terminal of the power gate transistor and the ungated power supply node.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: September 5, 2017
    Assignee: Intel Corporation
    Inventors: Yong Shim, Jaydeep P. Kulkarni, Pascal A. Meinerzhagen, Muhammad M. Khellah
  • Patent number: 9673710
    Abstract: A DC-DC converter including digital circuitry for determining load current supplied to a load. In some embodiments the digital circuitry determines the load current differently based on whether the DC-DC converter is operating in pulse frequency modulation mode or pulse width modulation mode. In some embodiments the DC-DC converter includes circuitry for determining if a short circuit or over current condition exists.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: June 6, 2017
    Inventors: Hassan Ihs, Jason Rau
  • Patent number: 9653989
    Abstract: A system that may include a first direct current to direct current (DC) converter that is arranged to determine at a first determination rate whether to alter a parameter of operation of the first DC to DC converter and to selectively alter the parameter of operation of operation of the first DC to DC converter in response to the determination; and a second switched-mode DC to DC converter that is arranged to determine at a second determination rate whether to alter the parameter of operation of the second DC to DC converter and to selectively alter the parameter of operation of operation of the second DC to DC converter in response to the determination. The second determination rate is higher by at least a factor of two than the first determination rate. The first and second DC to DC converters are mutually unsynchronized.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: May 16, 2017
    Assignee: DSP GROUP Ltd.
    Inventor: Assaf Ganor
  • Patent number: 9647554
    Abstract: Provided is a DC-DC converter including an inductor configured to store input energy, a ground switch configured to provide a ground path of the inductor in response to a first signal, an inductor switch connected in parallel to the inductor so as to maintain the energy stored in the inductor in response to a second signal, output switches configured to output the energy stored in the inductor as multi-output voltages in response to third signals, and a switch controller including a switch controller configured to determine cross regulation between the multi-outputs and generate the first to third signals for decreasing the cross regulation.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 9, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jimin Oh, Jung Hee Suk, Yil Suk Yang, Sang Kyun Lee
  • Patent number: 9634567
    Abstract: A microelectromechanical systems (MEMS) sensor with an integrated power management system that performs analog to digital conversion of weak signals is provided. The MEMs sensor can include a switching regulator that steps a supply voltage down to a voltage appropriate for an analog to digital converter (A/D converter). A timing circuit is provided to generate a clock frequency for the switching regulator and the A/D converter such that the clock frequencies are harmonically related. The frequency of the voltage ripples formed by the switching regulator will match the clock frequency provided to the switching regulator. When the sampling frequency of the A/D converter is harmonically related to the voltage ripple frequencies, the aliasing frequency will fall outside a range of frequencies associated with the analog signal.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: April 25, 2017
    Assignee: INVENSENSE, INC.
    Inventor: Omid Oliaei
  • Patent number: 9627975
    Abstract: The present disclosure provides a modulated power supply system having a switching converter with an output terminal for supplying modulated power to a load. The modulated power supply system also includes a controller adapted to transition the switching converter between a buck mode and a boost mode in response to a detection of at least one predetermined condition associated with the output terminal.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: April 18, 2017
    Assignee: Qorvo US, Inc.
    Inventors: Nadim Khlat, Michael R. Kay
  • Patent number: 9621146
    Abstract: A digital current equalization method includes: acquiring a current value from a counter preset value loading module in each synchronization period; generating a continuous variable frequency pulse according to the current value, and receiving a synchronization signal transmitted by a phase inverter connected to the PFM generator; transmitting, according to the synchronization signal, the continuous variable frequency pulse to the digital current equalization bus through an OC gate of a triode connected to the PFM generator; counting a frequency of the continuous variable frequency pulse on the digital current equalization bus, where an acquired frequency count value is used to represent a current magnitude of a power supply module, which currently outputs a greatest current, of the foregoing power supply module and a power supply module connected in parallel with the foregoing power supply module to accordingly adjust the output current of the foregoing power supply module.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: April 11, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Xiaodong Fan
  • Patent number: 9584021
    Abstract: Provided is a power supply for use in a solar electric production system, including: a first stage having an input connected to a voltage from a photovoltaic panel and an output providing a first voltage different from the voltage from the photovoltaic panel; and a second stage connected to the output of the first stage, the second stage supplying power at a second voltage to a micro-controller, where the output of the first stage is turned on and stable for a period of time before the second stage is turned on to supply the power at the second voltage to the micro-controller.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: February 28, 2017
    Assignee: TIGO ENERGY, INC.
    Inventor: Mordechay Avrutsky
  • Patent number: 9570992
    Abstract: Disclosed examples include multiple output DC to DC converters with a buck converter including a half bridge switching circuit and transformer primary winding to provide a first output voltage signal, as well as a boost converter to provide an isolated second output voltage signal. The boost converter includes a transformer secondary winding magnetically coupled with the primary winding to provide a boost converter inductor, a switching circuit, an output diode providing the second output voltage signal, and a PWM controller that synchronizes the boost converter switching with the low side switch of the buck converter based on a sensed voltage of the transformer secondary winding.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: February 14, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Roberto Giampiero Massolini, Maurizio Granato, Giovanni Frattini
  • Patent number: 9564812
    Abstract: An apparatus and method for supplying power to an electronic device are provided. The apparatus includes a power converter, a main converter, and a sub converter. The power converts includes a rectifier configured to convert alternating current (AC) power into direct current (DC) power, and a smoothing condenser connected to an output terminal of the rectifier. The main converter is connected with an output terminal of the power converter and configured to supply power to a first component of the electronic device. The sub converter is connected with the output terminal of the power converter, and configured to supply power to components other than the first component, and to stop supplying the power in response to a momentary power interruption or a voltage dip occurring in the AC power.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: February 7, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-yong Joo, Jin-hyung Lee
  • Patent number: 9548652
    Abstract: System and method for protecting a power converter. The system includes a duty-cycle detection component configured to receive a modulation signal, determine a first duty cycle corresponding to a first period of the modulation signal, compare the first duty cycle with a threshold duty cycle, and generate a duty-cycle comparison signal. Additionally, the system includes a threshold generator configured to receive the duty-cycle comparison signal and generate a threshold signal corresponding to a second period of the modulation signal, the second period being after the first period, and a comparator configured to receive the threshold signal and a first signal and to generate a first comparison signal. The first signal is associated with an input current for a power converter. Moreover, the system includes a pulse-width-modulation component configured to receive the first comparison signal and generate the modulation signal for adjusting the input current for the power converter.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: January 17, 2017
    Assignee: On-Bright Electronics (Shanghai) Co., Ltd.
    Inventors: Yaming Cao, Jinya Dong, Yunchao Zhang, Lieyi Fang
  • Patent number: 9548794
    Abstract: The present disclosure provides techniques for power factor correction on a constant current system and also provides power line communications on the same power factor correction circuit. In one example embodiment, through controlled charging and draining of an input capacitor, the power factor correction circuit generates an input voltage which is in phase with the input current. Communication data is also embedded in the input voltage and/or input current by further charging and draining of the input capacitor according to a controlled switching scheme which includes both input current phase data and corresponding communication signals.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: January 17, 2017
    Assignee: Cooper Technologies Company
    Inventor: Traver Gumaer
  • Patent number: 9531485
    Abstract: In an RF device, an RF circuit includes an RF circuit connector optionally coupling thereto an RF element for transmitting or receiving an RF signal; and a power supply module selectively outputting power to the RF circuit connector according to a control signal. In addition, a testing circuit includes a first filter unit having a first external terminal electrically coupled to a testing signal and a second external terminal electrically coupled to the RF circuit, wherein the first filter unit is configured to allow the testing signal to enter the RF circuit while blocking an RF signal transmitted in the RF circuit from entering the testing circuit; and a testing-result informing unit having an external input electrically coupled to the first external terminal, and determining contents of the control signal according to an electric level at the external input.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: December 27, 2016
    Assignee: ALPHA NETWORKS INC.
    Inventor: Rong-Fa Kuo
  • Patent number: 9531258
    Abstract: Some embodiments of the present disclosure relate to improved regulators for charge pumps. Such regulators selectively activate a charge pump based not only on the voltage output of the charge pump, but also on an series of wake-up pulses that are delivered at predetermined time intervals and which are delivered independently of the voltage output of the charge pump. Hence, these wake-up pulses prevent extended periods of time in which the charge pump is inactive, thereby helping to prevent latch-up in some situations.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: December 27, 2016
    Assignee: Infineon Technologies AG
    Inventors: Thomas Kern, Ulrich Loibl
  • Patent number: 9519300
    Abstract: Exemplary embodiment of a device is disclosed comprising a processor to provide instructions, a first voltage regulator in communication with the processor to receive provided instructions received from the processor and to dynamically modulate an output voltage based on the received instructions, and a plurality of second voltage regulators to receive the output voltage from the first regulator; the output voltage to reduce a cross-regulation interference between the second regulators due to a change in a load of at least one of the second voltage regulators.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: December 13, 2016
    Inventors: Ken Tsz Kin Mok, Juhi Saha, Ching Chang Shen, John Eaton, Liang Yew Lin
  • Patent number: 9494963
    Abstract: A multi-stage voltage division circuit is provided and includes a main-stage voltage division element and a sub-stage voltage division element. The main-stage voltage division element is connected between a high-voltage end and a low-voltage end to average a high voltage and a low voltage and accordingly generates a main output voltage. The sub-stage voltage division element is connected between the high-voltage end and the low-voltage end and connected in parallel with the main-stage voltage division element. The sub-stage voltage division element averages the main output voltage and the low voltage to generate a lower output voltage. The sub-stage voltage division element averages the high voltage and the main output voltage to generate an upper output voltage. Therefore, in the situation of generating the same amount of divided voltages, the multi-stage voltage division circuit has higher driving efficiency and generates stable divided voltages to loads.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: November 15, 2016
    Assignee: INTEGRATED SOLUTIONS TECHNOLOGY INC.
    Inventor: Jie Li
  • Patent number: 9479271
    Abstract: In an RF device, an RF circuit includes an RF circuit connector optionally coupling thereto an RF element for transmitting or receiving an RF signal; and a power supply module selectively outputting power to the RF circuit connector according to a control signal. In addition, a testing circuit includes a first filter unit having a first external terminal electrically coupled to a testing signal and a second external terminal electrically coupled to the RF circuit, wherein the first filter unit is configured to allow the testing signal to enter the RF circuit while blocking an RF signal transmitted in the RF circuit from entering the testing circuit; and a testing-result informing unit having an external input electrically coupled to the first external terminal, and determining contents of the control signal according to an electric level at the external input.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: October 25, 2016
    Assignee: ALPHA NETWORKS INC.
    Inventor: Rong- Fa Kuo
  • Patent number: 9454169
    Abstract: Apparatuses and methods for controlling a power supply are provided. First power supply selecting circuit selects a higher voltage from USBIN and ACIN to be first output voltage; first LDO decreases the first output voltage to second output voltage, and closes self-start circuit after receiving reference voltage; second power supply selecting circuit selects a higher voltage from second output voltage and VBAT to be third output voltage; second LDO supplies the third output voltage as the first input voltage to reference circuit; reference circuit outputs the reference voltage according to first input voltage; second LDO closes self-start circuit after receiving the reference voltage; voltage detecting circuit supplies an enable signal to second LDO when determining that USBIN or ACIN reaches a threshold voltage according to the reference voltage; and second LDO provides the first input voltage to reference circuit after receiving the enable signal.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: September 27, 2016
    Assignee: ZHONGXING MICROELECTRONICS TECHNOLOGY CO. LTD
    Inventor: Binbin Li
  • Patent number: 9444331
    Abstract: In accordance with an embodiment, a circuit includes a switch coupled between a first reference terminal and a first output terminal, an inductive element coupled between an input terminal and a second output terminal, and a diode coupled between the first output terminal and the input terminal. The circuit further includes a controller coupled to a control terminal of the switch. The controller is configured to determine a switching signal based on an output signal at the second output terminal and provide the switching signal to the control terminal of the switch.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: September 13, 2016
    Assignee: Infineon Technologies AG
    Inventors: Andrea Carletti, Mathias Kiele-Dunsche
  • Patent number: 9433052
    Abstract: An LED control system, comprising: a power source; an LED connected to the power source; a first switch connected in series with the LED; a second switch connected in parallel with the LED; a first regulation module including the first path to regulate a power applied to the LED; a second regulation module sharing the first path with the first regulation module to regulate the power applied to the LED; a check module to detect an energy value on a node of the LED control system; and a control module connected to the power source check module, the first regulation module, and the second regulation module; wherein when the check module detects that the energy value on the node is greater than a predefined value, the control module disables the regulation module in operation and enables the other regulation module.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: August 30, 2016
    Assignee: ALFASEMI INC.
    Inventors: Yu-Cheng Chang, Te-Lung Shih
  • Patent number: 9431845
    Abstract: A switching charger having a control circuit configured to provide a control signal; a power stage turned ON and OFF by the control signal; an inductor coupled between the power stage and a load; and an output capacitor coupled in parallel with the load; a current sense circuit integrated to the control circuit to sense a current flowing through the power stage.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: August 30, 2016
    Assignee: CHENGDU MONOLITHIC POWER SYSTEMS CO., LTD.
    Inventors: Min Xu, Zhengui Bai, Xiaoqing Li, Yuancheng Ren