With Means To Connect The Input To Diverse Power Sources Patents (Class 363/142)
  • Patent number: 10320188
    Abstract: A power adapter is disclosed herein. The power adapter includes an AC-DC converter, at least one output port, at least one DC transmission cable and at least one connector. The AC-DC converter is configured to convert an input AC voltage to an intermediate DC voltage. The output port is configured to output the intermediate DC voltage. A second terminal of the DC transmission cable is connected to the output port and configured to receive and transmit the intermediate DC voltage. The connector is connected to a first terminal of the DC transmission cable and configured to output an output voltage. The connector includes a first housing, a DC-DC converter and an output terminal. The DC-DC converter is enclosed in the first housing and configured to convert the intermediate DC voltage to the output voltage. The output terminal is enclosed in the first housing and configured to transmit the output voltage.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: June 11, 2019
    Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
    Inventor: Dao-Fei Xu
  • Patent number: 10305394
    Abstract: The present invention relates to a power supply apparatus and, more particularly, to a power supply apparatus for sub-modules of a MMC (Modular Multilevel Converter), the apparatus stably supplying power to the sub-modules of the MMC connected to an HVDC (High Voltage Direct Current) system.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: May 28, 2019
    Assignee: HYOSUNG HEAVY INDUSTRIES CORPORATION
    Inventor: Yo Han Baek
  • Patent number: 10193454
    Abstract: An overvoltage detection circuit for a power converter a current augmentation circuit coupled to receive a sense signal representative of an output voltage of the power converter only during a portion of an off time of a power switch of the power converter. The current augmentation circuit is further coupled to output an augmented signal. A detection circuit is coupled to receive the augmented signal from the augmentation circuit and a power signal representative of a rectified version of the sense signal at a same input terminal. The detection circuit is operable to output an overvoltage detection signal based at least in part on the augmented signal, the overvoltage detection signal being representative of an overvoltage condition in the output voltage of the power converter.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: January 29, 2019
    Assignee: Power Integrations, Inc.
    Inventor: Marvin Cruz Espino
  • Patent number: 10164544
    Abstract: An Input-Series-Output-Parallel (ISOP)-type partial power converter circuit comprises: an isolated, unregulated DC-to-DC converter configured to generate a first output voltage at a first output voltage node; and a regulated DC-to-DC converter coupled with the unregulated DC-to-DC converter and configured to generate a second output voltage at a second output voltage node, the regulated DC-to-DC converter comprising a resonant forward-flyback converter configuration; wherein the first output voltage node is coupled in parallel with the second output voltage node.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: December 25, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Liming Ye, Heping Dai, Dianbo Fu
  • Patent number: 10095174
    Abstract: A high-voltage power supply includes: a first high-voltage output circuit having a first output connected to a first load, and a second output, and capable of outputting a first voltage having a first polarity to the first load; a voltage clamping element connected to the second output and configured to clamp a voltage at the second output to a second voltage having a second polarity opposite to the first polarity; a second high-voltage output circuit having a third output connected to the second output and a fourth output, and capable of outputting a third voltage having the first polarity; and an output circuit connected to the fourth output and a second load, and configured to produce a voltage having the first polarity and a voltage having the second polarity using the third voltage and a voltage derived from the second voltage and output the produced voltages to the second load.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: October 9, 2018
    Assignee: Oki Data Corporation
    Inventor: Shuichi Suzuki
  • Patent number: 10086604
    Abstract: A method of operating a printing device during a power loss event includes, with a power loss detection device, detecting an power loss to a number of high voltage devices. The method further includes, with a voltage regulator coupled to printhead fire control circuitry, maintaining a power loss protection supply voltage (VDD_plp) to the printhead fire control circuitry.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: October 2, 2018
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: James Gardner, Daryl E Anderson, Eric T Martin
  • Patent number: 9960634
    Abstract: Power generation and storage system and/or solar power generation and storage packaged panels and storage functions in a device and their installment of Signal UPS system device and this power equipment Station combined with various electric power generators. The first aspect of his invention relates to Intelligent function installing Power generation and storage system, involving a control system of Charge-Discharge, Power storage and supplemental charge-discharge functions, packaging lithium ion rechargeable battery (LIB) (1) sole or a combination of LIB and capacitor-condenser as battery units, Charge-Discharge Control Unit (2) containing Charge-Discharge controller.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: May 1, 2018
    Assignee: GEM CORPORATION
    Inventor: Tsutomu Sada
  • Patent number: 9818579
    Abstract: According to a first aspect of the present invention, reducing electrical energy stored in a load or in one or more leads for connecting a power supply with the load is achieved by plasma process power circuitry including a switch in operative connection with at least one of the leads for enabling/interrupting power to the load; a first electrical nonlinear device; an energy storing device arranged in series with the first electrical nonlinear device; and a pre-charging circuit in operative connection with the energy storing device, the pre-charging circuit configured to charge the energy storing device to a pre-determined energy level while power to the load is enabled.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: November 14, 2017
    Assignee: TRUMPF Huettinger Sp. z o. o.
    Inventors: Pawel Ozimek, Rafal Bugyi, Robert Dziuba, Andrzej Klimczak, Marcin Zelechowski
  • Patent number: 9722427
    Abstract: A system connected to an AC power grid having an AC phase signal includes an inverter module including a first inverter coupled to a DC voltage, actuated based on the AC phase signal. The first inverter provides a first voltage signal having predetermined harmonic components. A second inverter includes second switch elements coupled to the DC voltage and actuated by a second set of control signals phase delayed with respect to the first control signals. A transformer module has first and second primary windings coupled to the first and second inverters. The transformer module further includes a secondary winding coupled to first primary winding, the second primary winding, and the AC power grid. The secondary winding is configured to provide a secondary output voltage to the AC power grid by combining the first voltage signal and the second voltage signal such that the predetermined harmonic components are substantially cancelled.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: August 1, 2017
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Mingyao Ma, Haibing Hu, Nasser Kutkut, Issa Batarseh, John Shen, Raed Bkayrat
  • Patent number: 9721735
    Abstract: A multi-function charger is provided. The multi-function charger includes a main body, a first plug, a first base, a second base, and a linkage element. The main body has a first surface having a recess and a second surface opposite thereto. The first plug having a first connector, a second connector, and a third connector is arranged in the main body and exposed on the first surface. The first base is connected to the first and second connectors, and the second base is connected to the third connector. The linkage element is pivotally connected to the first and second bases so that the first connector, the second connector, and the third connector are capable of rotating in the same direction until to be arranged in the recess. The linkage element is located in a connecting region defined between the central section of the first base and the second base.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: August 1, 2017
    Assignee: POWERTECH INDUSTRIAL CO., LTD.
    Inventors: Jung-Hui Hsu, Fan-Keng Ho
  • Patent number: 9698565
    Abstract: A diode control device include a first terminal for receiving a first power supply voltage and a second terminal for receiving a second power supply voltage. A circuit of the diode control device applies a regulated voltage on the anode of the diode in response to a control voltage. The control voltage is equal to a preset voltage when a reference voltage is less than or equal to zero. Conversely, when the reference voltage is greater than zero, the control voltage is equal to the sum of the present voltage and a difference between cathode voltage of the diode and the reference voltage.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: July 4, 2017
    Assignee: STMicroelectronics (Alps) SAS
    Inventor: Patrik Arno
  • Patent number: 9656555
    Abstract: An electric motor vehicle main circuit system includes an AC-DC switching circuit switching a supply destination of electric power according to a type of supplied power from an overhead wire, a transformer, a tap changer switching tap positions of the transformer, a CNV converting an output of the tap changer into a direct-current voltage, an AC contactor opening and closing a power supply path between the tap changer and the CNV, an FC accumulating an output of the CNV or the overhead wire, a CH stepping up an output of the FC, an FC accumulating an output of the CH, an INV converting an output of the FC into a desired alternating-current voltage, a DC contactor opening and closing a power supply path between the AC-DC switching circuit and the CH, and a control section controlling the tap changer, the AC contactor, the DC contactor, the CNV, and the CH.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: May 23, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takeo Matsumoto, Yoshio Nagatsuka
  • Patent number: 9515516
    Abstract: A portable power station system for providing access to electrical power and mechanical energy in from stored and renewable sources comprising a housing containing a battery, a brushless DC motor, an inverter, a gear system, an AC motor, an alternator, a rectifier, a reservoir capacitor, a charge controller, sequentially connected with the charge controller connected back to the battery. Solar panels and a wind power generator are additionally connected to the charge controller. A plurality of grounds are also provided. The portable power station system works to convert stored energy from the battery into other forms of energy and provide access to the various forms of energy through various discrete outputs accessible from the exterior of the housing. To account for the inevitable energy losses from its operation, the portable power station system utilizes renewable forms of energy to continually introduce additional energy.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: December 6, 2016
    Inventor: Jeramy Baker
  • Patent number: 9385351
    Abstract: A reconfigurable battery pack power system with interchangeable accessories has at least one modular, portable, rechargeable battery module having a first side, the first side having a first contour and a mounting port and a power output port, and at least one accessory module configured to receive power from the battery module. The accessory module has a second side with a second contour that mates with the first contour on the battery module, and has a power coupling connector and a fastener. The accessory module is interchangeably mateable with the battery module with the first and second contours nested together, and with the power output port engaged with the power coupling connector and with the fastener engaged with the mounting port, so that the battery module and the accessory module form a single integrated and substantially rigid structure.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: July 5, 2016
    Assignee: GOAL ZERO LLC
    Inventors: Robert E. Workman, Norman Krantz, Joseph R. Atkin, Walker Ford
  • Patent number: 9331479
    Abstract: A sensor device has a sensor unit, a control unit; and multiple power supply paths from a power supply to the sensor unit and the control unit. The multiple power supply paths are configured to be switched in accordance with an operation status of the sensor unit. The sensor device further has a wireless communication device for transmitting a measurement result of the sensor unit. The multiple power supply paths are provided to supply power from the power supply to the wireless communication device. The multiple power supply paths are configured to be switched in accordance with an operation status of the wireless communication device.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: May 3, 2016
    Assignee: OMRON Corporation
    Inventors: Hiroshi Imai, Yasuhiro Kawabata, Hiroshi Sameshima
  • Patent number: 9280167
    Abstract: A parallel power supply includes a built-in test switch and a control and determination unit. The built-in test switch is arranged to generate a first detection signal. The control and determination unit is coupled to the built-in test switch. When receiving the first detection signal, the control and determination unit is operative for enabling a detection mechanism according to the first detection signal in order to detect an operation of the parallel power supply, and accordingly generating a detection result. A power detection method for a parallel power supply includes: disposing a built-in test switch inside the parallel power supply; and when receiving a first detection signal generated from the built-in test switch, enabling a detection mechanism according to the first detection signal in order to detect an operation of the parallel power supply, and accordingly generating a detection result.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: March 8, 2016
    Assignee: 3Y POWER TECHNOLOGY (TAIWAN), INC.
    Inventor: Chih-Chang Tsai
  • Patent number: 9246411
    Abstract: Single and multiphase regenerative voltage doubler rectifiers, sag/swell corrector apparatus, and operating methods are presented in which rectifier switching devices are selectively pulse width modulated for regenerative load conditions and for regenerating power during input voltage swell circumstances.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: January 26, 2016
    Assignee: Rockwell Automation Technologies, Inc.
    Inventor: Rangarajan Tallam
  • Patent number: 9048663
    Abstract: This invention concerns an electrical energy distribution system. The system incorporates ‘ride-through’ capability, comprising: a supply side for supplying energy in the form of direct current at a supply voltage, a delivery side for delivering energy, having plural connection ports for selective connection to respective electrical energy loads. Wherein each connection port includes electricity conditioning circuitry to deliver and vary electrical power supply to a load connected at the port. And further comprising a bank of charge storage devices arranged in series and connected across the supply voltage.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: June 2, 2015
    Assignee: RENERGYX PTY LIMITED
    Inventor: Craig Harrison
  • Patent number: 9049796
    Abstract: A client connection device for a UPS system includes a frame on which a main input distribution unit, a bypass input distribution unit, a battery distribution unit, and an output distribution unit are provided, in which the main input distribution unit and the bypass input distribution unit are arranged on the frame with being opposite to each other up and down, the output distribution unit and the battery distribution unit are arranged on the frame on different sides of the main input distribution unit and the bypass input distribution unit, and the battery distribution unit is side placed near the main input distribution unit and the bypass input distribution unit. A client connection device for a UPS system is provided which can be of a compact structure, be space saving, and be convenient for space operation.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: June 2, 2015
    Assignee: LIEBERT CORPORATION
    Inventors: Hongjie Qiu, Ping Gong
  • Patent number: 8971083
    Abstract: A transformer for connecting a 50 A RV normally wired for 110 volts of electricity to foreign receptacles providing 220 volts of electricity. The transformer employs two cords on the input side of the transformer that can be connected to the two receptacles normally provided between side-by-side campsites in a campground. The transformer also employs a separate circuit breaker in each hot lead on the secondary side of the circuit employed in the transformer.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: March 3, 2015
    Inventor: John Michael Johnson
  • Patent number: 8941976
    Abstract: The embodiments provide a powerline network adapter that allows network communications over power lines while also being configurable to provide other features. In the embodiments, the network adapter can provide a first power outlet, a powerline network adapter, and a wireless access point. The first power outlet serves as a replacement for the outlet consumed by the powerline network adapter and is filtered to reduce or prevent interference with network communications being carried over the powerline. The network adapter is also configurable to provide, among other things, a powerline wired Ethernet interface and a wireless access point that is coupled to the powerline. Furthermore, the network adapter may be configured to provide a second power outlet for a device, such as an external drive. For example, the second power outlet may be an AC/DC 12-Volt power adapter. In some embodiments, this second power outlet is also filtered from the first power outlet.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: January 27, 2015
    Assignee: Western Digital Technologies, Inc.
    Inventor: John E. Maroney
  • Patent number: 8853884
    Abstract: Systems and methods (“utility”) are provided for reducing the no-load (standby) power of power devices such as chargers for electronic devices and power converters for electronic devices. The utility may include a controllable switch that is operative to decouple circuitry of the power device from a power source under certain no-load conditions. In one embodiment, the utility provides a switch control module that is operative to sense when an electronic device is coupled to the power device, and in response, to control the switch to couple the power device to the power source. The switch control module may also be operative to detect a condition when the electronic device is no longer drawing power from the power device, and in response, to control the switch to decouple the power device from the power source.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: October 7, 2014
    Assignee: Flextronics AP, LLC
    Inventors: Ralf Schröder genannt Berghegger, Reinhold Schulz, Florian Schäfer
  • Patent number: 8781434
    Abstract: Method and system for enhancing the power efficiency of a first wireless device that includes an energy receiver. In one implementation, the method includes receiving a transmitted signal at the first wireless device, converting the transmitted signal into power through the energy receiver, and providing the power to the first wireless device.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 15, 2014
    Inventor: Marcellus Chen
  • Patent number: 8767425
    Abstract: Electronic devices require correct power in order to operate correctly. Receiving an incorrect power signal could potentially result in immediate and/or long term harm to the electronic device and/or catastrophic conditions. Certain devices, such as programmable logic controller (“PLC”) modules, may provide variable power to electronic devices, such as field devices comprising sensors and/or actuators. The present inventors have recognized that deciphering between AC and DC input signals before coupling electronic devices to such power sources may advantageously avoid harmful and/or catastrophic conditions. Aspects of the present invention provide an electronic circuit for deciphering between an AC and a DC input signal. Systems and methods are also described.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: July 1, 2014
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Dale R. Terdan, Sean P. Overberger, Sr.
  • Patent number: 8705258
    Abstract: A communication device for use with a power distribution module. The communication device allows multiple different DMX universes to be handled over the same cable that also handles power distribution. A front of house module is provided for powering consoles and receiving DMX inputs from the consoles. Two different consoles can be powered and provide their inputs, and either console can be used to control any or all of the universes.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: April 22, 2014
    Assignee: Production Resource Group, LLC
    Inventors: Charles Reese, Rusty Brutsche, James Bornhorst
  • Patent number: 8619443
    Abstract: A system and method are provided for increasing and maintaining voltage. A transformer's secondary windings are connected between the hot input line and the hot output line, and are not switched. The secondary windings may be in series for 220/230 Vrms, and in parallel for 120/127 Vrms. Alternatively, the transformer may be a single voltage type specifically for 230 V, 120 V, or any other voltage range. A microprocessor measures incoming voltage and controls an electronic switch on the primary windings side of the transformer to short circuit the primary windings when the transformer is not needed. When voltage boost is needed, the switch may be controlled to connect the primary windings to neutral. When the primary windings are switched to neutral, the secondary voltage adds to the incoming AC line voltage. There may be multiple taps on the primary windings selected by the microprocessor for providing differing boost levels at differing input voltage levels.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 31, 2013
    Assignee: The Powerwise Group, Inc.
    Inventor: John L. Lumsden
  • Patent number: 8598844
    Abstract: In a power converter, a primary winding receives an input power. In addition, multiple secondary windings transform the input power into multiple charging currents to charge a set of cells via a set of paths. The multiple secondary windings further balance the set of cells based on the charging currents. A ratio between a first turn number of a first secondary winding of the secondary windings and a second turn number of a second secondary winding of the secondary windings is determined by a nominal voltage ratio between two corresponding cells of the set of cells.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: December 3, 2013
    Assignee: O2Micro, Inc.
    Inventors: William Densham, Constantin Bucur, Flavius Lupu, Jiun Heng Goh, Stefan Maireanu
  • Publication number: 20130307340
    Abstract: A power converter and method of operating the same for use in a power conversion system capable of receiving power from various sources, including renewable sources, for application to a load. Power type detection circuitry is provided for identifying the type of power source at the input of each power detector, based on attributes of the time-varying power received. The power converter is constructed of a boost stage followed by a galvanically isolated DC-DC converter stage. If a renewable input power source is detected, the boost stage is controlled to operate at a maximum power point, and the DC-DC converter stage is operated in an open loop manner. If the AC grid is detected as the input power source, the boost stage is controlled to attain maximum power factor, and the DC-DC converter stage is placed under feedback control of the output voltage. Operating modes are also switched in response to low load demand.
    Type: Application
    Filed: March 6, 2013
    Publication date: November 21, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Palanivel Subramanium, Raghothama Reddy, Darwin Smith
  • Patent number: 8582336
    Abstract: According to one embodiment, a power supply circuit includes an input terminal, a rectifier circuit, a power factor improvement circuit, a DC/DC converter, and a control module. The DC/DC converter converts the level of a DC voltage output from the power factor improvement circuit. The control module determines on the basis of the output voltage of the rectifier circuit whether an input power supply supplied to the input terminal is AC or DC. The control module generates a DC power supply by use of the power factor improvement circuit and DC/DC converter when the input power supply is AC and generates a DC power supply by controlling the operation of the power factor improvement circuit and DC/DC converter according to the voltage of input DC power supply when the input power supply is DC.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: November 12, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Masayasu Tanaka
  • Patent number: 8531859
    Abstract: An alternating-current and direct-current conversion apparatus includes a first converter unit, a switching unit electrically connected with the first converter unit, and a second converter unit electrically connected with the switching unit. The switching unit is connected between the first converter unit and the second converter unit and is operated to convert a direct-current power into an alternating-current power or to convert an alternating-current power into a direct-current power so that the direct-current power of the direct-current source is converted into an alternating-current power which can be used by the alternating-current source, and the alternating-current power of the mains power supply is converted into a direct-current power which can be used by the direct-current source.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: September 10, 2013
    Assignee: Soltec Technology Co., Ltd.
    Inventor: Yu-Tse Lin
  • Publication number: 20130208522
    Abstract: A power supply system for a charge is provided. The power supply system includes a converter connected in input to a current source and in output to a charge, the converter being able to deliver a direct current to the charge and allow the circulation of the current in a single direction, from the current source to the charge and a circulation bus for an electric current, including a first end and a second end. The power supply system further includes a device for injecting an additional alternating voltage and at the second end of the circulation bus, the injection device being connected to the second end and a device for recovering the additional injected alternating voltage, the recovery device being connected between the first end of the bus and the charge, so as to supply the charge with electrical current.
    Type: Application
    Filed: February 13, 2013
    Publication date: August 15, 2013
    Applicant: GE ENERGY POWER CONVERSION TECHNOLOGY LTD.
    Inventor: GE Energy Power Conversion Technology Ltd.
  • Patent number: 8508182
    Abstract: An alternating current-to-direct current (AC-to-DC) power supply has a first stage providing a first DC voltage and a second stage providing a second DC voltage. The AC-to-DC power supply has a first efficiency at the first stage and a second efficiency at the second stage that is less than the first efficiency. The second DC voltage is also less than the first DC voltage. A blower is electrically connected to the first stage of the AC-to-DC power supply to receive the first DC voltage from the AC-to-DC power supply to power the blower. Electrical connection of the blower to the first stage of the AC-to-DC power supply instead of to the second stage of the AC-to-DC power supply wastes less power and is more efficient.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: August 13, 2013
    Assignee: International Business Machines Corporation
    Inventors: Randhir S. Malik, Jen-Ching Lin, Chu Te Chung, Cecil C. Dishman, Michael J. Steinmetz
  • Patent number: 8491317
    Abstract: A compact power adapter comprises an electric circuit, a casing and two electrically conductive AC prongs. A first portion of the casing contains the electric circuit. A second portion of the casing extends from a side of the first portion and has a generally cylindrical shape and size receivable in a car cigarette lighter. The second portion has two recesses and electrical contacts that receive electrical energy when the second portion is received in the car cigarette lighter. The AC prongs are receivable in an AC power outlet, and are rotatably coupled to the casing to rotate between a first position where the AC prongs extend from the casing approximately perpendicular to a longitudinal axis of the generally cylindrical shape of the second portion and a second position where each of the AC prongs is received in a respective one of the recesses of the second portion.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: July 23, 2013
    Inventor: Hrant Vardanyan
  • Patent number: 8493717
    Abstract: According to one embodiment, a note PC has a disk drive connected to a system board via a connector. A power receive coil is attached to the disk drive. Power produced by the power receive coil as a result of excitation of a power feed coil is fed to a power supply control circuit via an unused pin of the connector.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: July 23, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Ryo Saito
  • Patent number: 8489248
    Abstract: A portable power system for use with an electrical device. The system includes a portable power storage device, a motor, a controller, an alternator, an inverter, and a first monitor. The portable power storage device provides a DC voltage. The first monitor generates a first indication related to a characteristic of the portable power source. The controller monitors the primary power source delivering primary power to the electrical device, couples the portable power storage device to the inverter for generating an AC output, and selectively drives the motor in response to the first indication. The alternator is responsive to the motor for converting mechanical motion of the motor into an electrical signal for use to recharge the portable power storage device.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: July 16, 2013
    Inventor: Nate Carson
  • Patent number: 8451639
    Abstract: An input adaptable electrical test set provides for the automatic detection of the power source connected to the test set, as well as automatic configuration of the test set to accommodate the identified power source. Prior to identification of the power source, a circuit breaker isolates a main transformer associated with the test set from receiving power from the power source. The main transformer includes a primary winding and a secondary winding, the primary winding having first, second and third tap positions that allows the transformer to be configured in one of two states depending on the power source connected to the test set. An automatic input voltage detection circuit monitors the input voltage provided by the unidentified power source and identifies the power source based on the monitored voltage.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: May 28, 2013
    Assignee: Electrical REliability Services, Inc.
    Inventor: Christopher J. Revak
  • Patent number: 8446745
    Abstract: The present application discloses methods, circuits and systems for power conversion, using a universal multiport architecture. When a transient appears on the power input (which can be, for example, polyphase AC), the input and output switches are opened, and a crowbar switch shunts the inductance which is used for energy transfer. This prevents this inductance from creating an overvoltage when it is disconnected from outside lines.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: May 21, 2013
    Assignee: Ideal Power Converters, Inc.
    Inventor: William C. Alexander
  • Patent number: 8441819
    Abstract: The present application discloses methods, circuits and systems for power conversion, using a universal multiport architecture. When a transient appears on the power input (which can be, for example, polyphase AC), the input and output switches are opened, and a crowbar switch shunts the inductance which is used for energy transfer. This prevents this inductance from creating an overvoltage when it is disconnected from outside lines.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: May 14, 2013
    Assignee: Ideal Power Converters, Inc.
    Inventor: William C. Alexander
  • Patent number: 8432711
    Abstract: The present application discloses methods, circuits and systems for power conversion, using a universal multiport architecture. When a transient appears on the power input (which can be, for example, polyphase AC), the input and output switches are opened, and a crowbar switch shunts the inductance which is used for energy transfer. This prevents this inductance from creating an overvoltage when it is disconnected from outside lines.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: April 30, 2013
    Assignee: Ideal Power Converters, Inc.
    Inventor: William C. Alexander
  • Patent number: 8423805
    Abstract: A portable electronic apparatus is connected to a power supply device via a transmission line, and it includes a designated connector, a charge control circuit, and a judgment circuit. The designated connector includes five terminals respectively corresponding to five pins of a USB connector of the power supply device. When the power supply device is connected to the portable electronic apparatus, the first terminal of the designated connector is logic high, the fourth terminal of the designated connector is logic high, and the third terminal of the designated connector is logic high after pulling up the voltage level of the second terminal, the judgment circuit pulls down the voltage level of the third terminal and detects the voltage level of the third terminal so as to generate a determining result for determining a type of the power supply device.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: April 16, 2013
    Assignee: HTC Corporation
    Inventors: Chih-Hung Li, Yung-Hsien Kuo
  • Patent number: 8416721
    Abstract: Method and system for enhancing the power efficiency of a first wireless device that includes an energy receiver. In one implementation, the method includes receiving a transmitted signal at the first wireless device, converting the transmitted signal into power through the energy receiver, and providing the power to the first wireless device.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: April 9, 2013
    Inventor: Marcellus Chen
  • Patent number: 8400800
    Abstract: Methods and systems for transforming electric power between two or more portals. Any or all portals can be DC, single phase AC, or multi-phase AC. Conversion is accomplished by a plurality of bi-directional conducting and blocking semiconductor switches which alternately connect an inductor and parallel capacitor between said portals, such that energy is transferred into the inductor from one or more input portals and/or phases, then the energy is transferred out of the inductor to one or more output portals and/or phases, with said parallel capacitor facilitating “soft” turn-off, and with any excess inductor energy being returned back to the input. Soft turn-on and reverse recovery is also facilitated. Said bi-directional switches allow for two power transfers per inductor/capacitor cycle, thereby maximizing inductor/capacitor utilization as well as providing for optimum converter operation with high input/output voltage ratios. Control means coordinate the switches to accomplish the desired power transfers.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: March 19, 2013
    Assignee: Ideal Power Converters, Inc.
    Inventor: William C. Alexander
  • Patent number: 8395910
    Abstract: Methods and systems for transforming electric power between two or more portals. Any or all portals can be DC, single phase AC, or multi-phase AC. Conversion is accomplished by a plurality of bi-directional conducting and blocking semiconductor switches which alternately connect an inductor and parallel capacitor between said portals, such that energy is transferred into the inductor from one or more input portals and/or phases, then the energy is transferred out of the inductor to one or more output portals and/or phases, with said parallel capacitor facilitating “soft” turn-off, and with any excess inductor energy being returned back to the input. Soft turn-on and reverse recovery is also facilitated. Said bi-directional switches allow for two power transfers per inductor/capacitor cycle, thereby maximizing inductor/capacitor utilization as well as providing for optimum converter operation with high input/output voltage ratios. Control means coordinate the switches to accomplish the desired power transfers.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: March 12, 2013
    Assignee: Ideal Power Converters, Inc.
    Inventor: William C. Alexander
  • Patent number: 8391033
    Abstract: The present application discloses methods, circuits and systems for power conversion, using a universal multiport architecture. When a transient appears on the power input (which can be, for example, polyphase AC), the input and output switches are opened, and a crowbar switch shunts the inductance which is used for energy transfer. This prevents this inductance from creating an overvoltage when it is disconnected from outside lines.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: March 5, 2013
    Assignee: Ideal Power Converters, Inc.
    Inventor: William C Alexander
  • Patent number: 8374013
    Abstract: A power supply includes an AC-to-DC circuit, a DC-to-DC circuit, an interface used by both of the AC-to-DC circuit and the DC-to-DC circuit, and a control circuit for controlling the interface. The interface includes an ACL/DC+ input terminal, an ACN/DC? input terminal and a ground. The control circuit includes an AC/DC detecting circuit for determining whether an input voltage is AC or DC, an AC/DC converting circuit for selectively conducting AC or DC, and a conversion-controlling circuit for controlling the direction of the input voltage based on the determination in the AC/DC detecting circuit.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: February 12, 2013
    Assignee: Shenzhen LVSUN Technology Co., Ltd.
    Inventor: Jianhua Xu
  • Patent number: 8366997
    Abstract: A modular laboratory automation system for monitoring and controlling laboratory experiments, the modular laboratory automation system including a controller, an interface board, and a portable power supply. Power levels of standard laboratory equipment can be automatically controlled, and conditions and parameters of experiments can be automatically monitored and recorded. The laboratory automation system is modular and can be configured to operate with laboratory experiments having varying setups and equipment.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: February 5, 2013
    Assignee: Shoto Technologies LLC
    Inventor: Richard James Degroot
  • Patent number: 8354760
    Abstract: Power supply equipment includes low power assemblies and high power assemblies, each of which is detachably mateable to either one of two power ports. To simultaneously power two low power devices, low power assemblies are respectively mated to each of the power ports. To simultaneously power one low power and one high power device, a low power assembly is mated to one of the power ports and a high power assembly is mated to the other power port. The low power assemblies transfer a low DC voltage, but not a high DC voltage, to low power devices. The high power assemblies transfer a high DC voltage, but not a low DC voltage, to high power devices. If a high power assembly is mated to each of the power ports, power flow is interrupted without putting the power supply in an overvoltage or overcurrent condition.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: January 15, 2013
    Assignee: Comarco Wireless Technologies, Inc.
    Inventor: Thomas W. Lanni
  • Patent number: 8345452
    Abstract: Methods and systems for transforming electric power between two or more portals. Any or all portals can be DC, single phase AC, or multi-phase AC. Conversion is accomplished by a plurality of bi-directional conducting and blocking semiconductor switches which alternately connect an inductor and parallel capacitor between said portals, such that energy is transferred into the inductor from one or more input portals and/or phases, then the energy is transferred out of the inductor to one or more output portals and/or phases, with said parallel capacitor facilitating “soft” turn-off, and with any excess inductor energy being returned back to the input. Soft turn-on and reverse recovery is also facilitated. Said bi-directional switches allow for two power transfers per inductor/capacitor cycle, thereby maximizing inductor/capacitor utilization as well as providing for optimum converter operation with high input/output voltage ratios. Control means coordinate the switches to accomplish the desired power transfers.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: January 1, 2013
    Assignee: Ideal Power Converters, Inc.
    Inventor: William C. Alexander
  • Patent number: 8300426
    Abstract: Methods and systems for transforming electric power between two or more portals. Any or all portals can he DC, single phase AC, or multi-phase AC. Conversion is accomplished by a plurality of bi-directional conducting and blocking semiconductor switches which alternately connect an inductor and parallel capacitor between said portals, such that energy is transferred into the inductor from one or more input portals and/or phases, then the energy is transferred out of the inductor to one or more output portals and/or phases, with said parallel capacitor facilitating “soft” turn-off, and with any excess inductor energy being returned back to the input. Soft turn-on and reverse recovery is also facilitated. Said hi-directional switches allow for two power transfers per inductor/capacitor cycle, thereby maximizing inductor/capacitor utilization as well as providing for optimum converter operation with high input/output voltage ratios. Control means coordinate the switches to accomplish the desired power transfers.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: October 30, 2012
    Assignee: Ideal Power Converters, Inc.
    Inventor: William C. Alexander
  • Publication number: 20120195088
    Abstract: A portable hand held power inverter/converter having a pass through device for simultaneously sourcing A.C. and multiple voltage D.C. power consuming devices through a single D.C. power source connection. Inverter and converter circuitry is provided to invert and convert D.C. voltage to an A.C. voltage source and a lower DC voltage. A.C. electrical outlets are provided to facilitate a connection to an external A.C. power-consuming device and a DC outlet to a lower volt DC power-consuming device. The pass through device provides an independent and simultaneous connection to an additional D.C. outlet that would otherwise be eliminated when occupied by the inverter thus allowing simultaneous connection and operation of both A.C. and multi source D.C power consuming devices through a single external D.C. power outlet of a single D.C. power source.
    Type: Application
    Filed: April 10, 2012
    Publication date: August 2, 2012
    Applicant: Intec, Inc.
    Inventors: Saied HUSSAINI, Marc Iacovelli