Abstract: A power source generation circuit includes a regulator circuit which receives an external power source voltage VDDA from an external power source, and generates a predetermined internal power source voltage on a given terminal VDD; and a charging circuit which connects the external power source and the given terminal when the external power source voltage VDDA supplied from the external power source is equal to or lower than a predetermined threshold voltage.

Abstract: An electronic device includes a power-saving mode and a normal mode. When a mechanical button is in a first position, a main control chip outputs a logic high pulse to a switch connected to a voltage converter, such that the switch is turned on, and the voltage converter is disabled. The electronic device accordingly enters the power-saving mode because power from an external power source cannot be converted to a work voltage of the electronic device via the voltage converter. When the mechanical button is in a second position, the main control chip outputs a logic low pulse to the switch, such that the switch is turned on, and the voltage converter is enabled. The electronic device accordingly enters the normal mode because power from the external power source can be converted to the work voltage of the electronic device via the voltage converter.

Abstract: A two-wire smart load control device, such as an electronic switch, for controlling the power delivered from a power source to an electrical load comprises a relay for conducting a load current through the load, a controller for rendering the relay conductive and non-conductive, and an in-line power supply coupled in series with the relay for generating a supply voltage across a capacitor when the relay is conductive. The power supply controls when the capacitor charges asynchronously with respect to the frequency of the source. The capacitor conducts the load current for at least a portion of a line cycle of the source when the relay is conductive. The controller is operable to determine when the magnitude of the supply voltage reaches a maximum supply voltage threshold, and render the relay non-conductive immediately after the supply voltage reaches the maximum supply voltage threshold.

Abstract: A power transforming device with a power-saving circuit loop is connected between a voltage source and an electric/electronic appliance, and has a micro-controller unit (MCU), a mode-switching circuit, a conversion circuit, and an output circuit. The mode-switching circuit has a switching element. The conversion circuit has an isolating element and a winding. The isolating element and one end of the winding are connected to the switching element. The output circuit has a switching element having one contact connected with the winding and another contact connected with the switching element of the mode-switching circuit. The MCU controls the isolating element and the switching elements to boost or buck down an input voltage according to the value of the input voltage, and directly outputs the input voltage without additionally consuming energy when voltage transforming operation is not required.

Abstract: Power management architectures, methods and systems for programmable integrated circuit are disclosed. One embodiment of the present invention pertains to a power management software architecture which comprises power management modules each associated with a respective driver. Each driver is associated with a component of a programmable integrated circuit and displayable as a graphic image within an on-screen display of an integrated circuit design tool for programming the programmable integrated circuit. In addition, each power management module is operable to report power consumption data customized to its respective driver. The power management software architecture also comprises a power source module associated with a power source for the programmable integrated circuit for reporting power supply characteristics.

Abstract: The present disclosure teaches a power management device for providing one or more voltages and prohibiting the operation until the IC is initialized and voltage stability is achieved. The power management device includes a power regulator block and a masking block. The power regulator block includes one or more of the following elements:- a regulator, a bandgap reference generator, a low voltage detector LVDD, a low voltage detector LVDM, and a plurality of logic gates. In one embodiment, the masking block includes one or more level shifters, a plurality of logic gates, a D flip-flop, and a power on reset circuit (PoR).

Abstract: A method for generating a value for available operating reserve for electric utility. Electric power consumption by at least one device is determined during at least one period of time to produce power consumption data, stored in a repository. Prior to a control event for power reduction and under an assumption that it is not to occur, power consumption behavior expected of the device(s) is determined for a time period during which the control event is expected to occur based on stored power consumption data. Additionally, prior to the control event, projected energy savings resulting from the control event, and associated with a power supply value (PSV) are determined based on devices' power consumption behavior. Amount of available operating reserve is determined based on projected energy savings.

Abstract: Techniques are disclosed relating to detecting a voltage change. In one embodiment, an integrated circuit may include a monitor circuit and a power management unit. The power management unit may be configured to request a voltage change. The monitor circuit may be configured to detect the requested voltage change and to provide an indication that the voltage change is complete. In response to the indication that the voltage change is complete, the power management unit may adjust a clock frequency.

Abstract: A method and device are disclosed for estimating a power demand level of an active circuit on a power supply line. A ripple amplitude and a ripple frequency associated with operation of the active circuit may be monitored on the power supply line. The ripple amplitude and ripple frequency may be compared with corresponding references. The ripple amplitude and ripple frequency may be associated with an estimated power demand level of the active circuit on the power supply line based on the comparison. A ripple generator generates a controlled ripple on the power supply line for calibration.

Abstract: A power converter 1 includes: a DC/DC unit 2 converting DC voltage supplied from an electric vehicle V to a first DC voltage for a home 20 or a second DC voltage for an electric appliance 24; a first power line L1 outputting the first DC voltage; a second power line L2 outputting the second DC voltage; a relay 3; an external connector 4 to which the electric appliance 24 is connected; and a controller 5 controlling the DC/DC unit and relay 3. During regular operation, the controller 5 causes the DC/DC unit 2 to convert the DC voltage to the first DC voltage and brings the relay 3 into a disconnected state to supply the first DC voltage via the first power line L1. When the first power line L1 is offline, the controller 5 causes the DC/DC unit 2 to convert the DC voltage to the second DC voltage and brings the relay 3 into a feeding state to supply the second DC voltage via the second power line L2.

Abstract: A reset and reboot circuit applied in an X86 electronic portable device is provided. The reset and reboot circuit includes: a first level controller; a first switch, turned on in response to a reset/reboot event to enable a control signal; a second level controller, enabling an output signal in response to the enabled control signal; and a logic unit, for disabling a drive signal in response to the enabled output signal. The X86 electronic portable device is driven by the disabled drive signal to reset and reboot, and an embedded controller of the X86 electronic portable device provides an enabled restart signal after it has been reset. The first level controller further disables the output signal in response to the enabled restart signal.

Abstract: A control system includes a load including an operative part, and a control device for supplying AC power to the load through a power line and operating the operative part. The control device includes an interruption mechanism and a transmission mechanism. The load includes a controller. The transmission mechanism transmits a predetermined control signal to the load through the power line by blocking the power supply to the load by the interruption mechanism for a time duration shorter than a half cycle of AC output. The controller controls the operative part based on the control signal received from the control device.

Abstract: A system and method for providing power control in a power management integrated circuit. A power management integrated circuit may comprise a communication interface module that receives power supply information from at least one electrical device external to the power management integrated circuit. The power supply information may, for example, comprise information related to a first electrical power. The power management integrated circuit may also comprise a power regulator module that determines a regulated power signal based, at least in part, on a portion of the power supply information. The regulated power signal may correspond to the first electrical power. For example, the regulated power signal may comprise the first electrical power or cause another circuit to output the first electrical power. The power management integrated circuit may then output the regulated power signal to at least one electrical device external to the power management integrated circuit.

Abstract: An intelligent electronic device segregates urgent data frames from non-urgent data frames on reception so that the urgent data frames may be handled with greater priority. A switching device is disposed between an external network interface and multiple internal network ports. Based on a network data type indicia, urgent data frames are routed to one of the ports, and non-urgent data frames are routed to another port. A processor coupled to the internal network ports handles urgent data frames before handling any non-urgent data frames.

Abstract: A method for operating an energy supply unit for a motor vehicle electrical system, including at least one first subsystem and one second subsystem having different voltage levels, the energy supply unit including an electric machine which is connected via a converter circuit to the first subsystem and the second subsystem. In a first operating mode, a switchable switch element of the converter circuit which connects the converter circuit to the second subsystem is opened, the converter circuit is activated as an inverter circuit and the electric machine is motor or generator operated. In a second operating mode, the switchable switch element of the converter circuit is closed, the converter circuit is activated as a DC-DC converter and the DC-DC conversion takes place between the voltage levels of the first and the second subsystem.

Abstract: Methods, systems, and apparatus, for wirelessly controlling a power supply device that controls a load. A wireless adapter includes a wireless communication device that receives transmissions from a wireless controller, a serial interface for a serial data connection to a power supply processing device integrated in the power supply device, an adapter processing device that receives the control signals the wireless communication device outputs, generates the control commands from the control signals, and outputs the control commands to the serial interface to cause the power supply processing device to control power provided to the load in a manner specified by the control commands, and an adapter power circuit that receives regulated direct current (DC) power from the power supply device and is powered from the regulated DC power received, and provides power to the wireless communication device and the adapter processing device.

Abstract: Systems and methods are provided that facilitate power management in a processing device. The system contains a power management component and a coupled to the processing device. The power management component determines and input rate and target voltages and/or frequency. The power management component can scale voltages and/or frequencies based on target voltages and/or frequencies. Accordingly, power consumption can be reduced and processing devices can be more efficient.

Abstract: A method of supplying electrical power to a load is provided. The method includes the step of providing a removable plug-in cartridge having markings related to a desired value of an electrical output of a power supply unit. The method further includes configuring the power supply unit to receive the removable plug-in cartridge such that the removable plug-in cartridge operates to set an output value of the power supply to the desired value.

Abstract: Systems and methods for digital voltage compensation in a power supply integrated circuit are provided. In at least one embodiment, a method comprises receiving a digital voltage code, the digital voltage code corresponding to an output voltage value; setting an output count on a first counter to change from a present first digital count corresponding to a present voltage code value toward a target first digital count corresponding to a new voltage code value; and setting a second count to an offset count value on a second counter when the new voltage code value is received. The method also comprises combining the second count with the output count to form a combined count value; and decrementing the second count value from the offset count value to zero when the first counter reaches the target first digital count.

Abstract: An electronic device comprising an optical gate, an electrical input an electrical output and a wide bandgap material positioned between the electrical input and the electrical output to control an amount of current flowing between the electrical input and the electrical output in response to a stimulus received at the optical gate can be used in wideband telecommunication applications in transmission of multi-channel signals.

Abstract: A power supply for supplying electrical power at a predetermined level is provided. The power supply includes circuitry configured to receive an electrical input and produce an electrical output. The power supply further includes a housing with an opening configured to receive a removable plug-in cartridge. The removable plug-in cartridge is configured to limit the electrical power output to the predetermined level.

Abstract: A control system, method, and device for managing variable power sources in DC power systems, such as photovoltaic (PV) systems. An electrical component can be configured to condition power from a photovoltaic (PV) panel such that current is drawn from the PV panel at a peak power continuously, at all times, or irrespective of current flux.

Abstract: A method includes, in a mobile communication terminal that is powered by a DC-DC converter and is operated by a user in accordance with multiple possible usage scenarios, determining a usage scenario according to which the terminal currently operates. One or more parameters of operation for the DC-DC converter are derived from the usage scenario. The DC-DC converter is configured to supply electrical power to the terminal using the derived parameters of operation.

Abstract: A client device manages consumption of power supplied by an electric utility to multiple power consuming devices. Power flow to the power consuming devices is selectively enabled and disabled by one or more controllable devices controlled by the client device. The client device receives a power control message from a load management server. In one embodiment, the power control message indicates at least one of an amount of electric power to be reduced and an identification of at least one controllable device to be instructed to disable a flow of electric power to one or more associated power consuming devices. Responsive to the power control message, the client device issues a power management command or instruction to one or more controllable devices under the client device's control. The power management command causes the controllable device(s) to disable a flow of electric power to at least one associated power consuming device.

Abstract: An integrated circuit with multi-functional parameter setting and a multi-functional parameter setting method thereof are provided. The multi-functional parameter setting method includes the following steps: providing the integrated circuit, wherein the integrated circuit includes a multi-functional pin and a switch unit, wherein the multi-functional pin is coupled to an external setting unit, and the switch unit includes an operational amplifier; sensing a programmable reference voltage of the external setting unit through one operation of the switch unit and executing a first function setting according to the programmable reference voltage; and sensing a programmable reference current related to the external setting unit through another operation of the switch unit and executing a second function setting according to the programmable reference current, wherein a value of the programmable reference current is related to the programmable reference voltage.

Abstract: In a multi-phase brushless DC motor, a zero crossing N-bit filter includes a comparator and a phase multiplexer. The phase multiplexer connects each motor phase to each of a positive and a negative input of the comparator, with a switch in each connection to form a switch array. A microprocessor is disposed to operate the switches, and is configured to measure a BEMF for a first phase by opening the switches connecting all other phases to the positive input of the comparator and by opening the switch connecting the first phase being measured to the negative input of said comparator. The comparators output is received by a shift register. The microprocessor is configured to respond to a zero crossing when a majority of bits in the shift register change between high and low.

Abstract: A method for reducing power consumption based on a motion sensor and a portable terminal adapted to the method are disclosed. The method includes terminating driving of a motion recognition program according to whether an input is detected by at least one sensor unit disposed in the portable terminal, and switching a mode of a controller included in the portable terminal into a motion recognition deactivation mode. The motion sensor-based portable terminal can reduce the power consumption, thereby lengthening the life span of the battery. The user can use the motion sensor-based portable terminal for a long period of time without frequently recharging its battery.

Abstract: A power supply system may include power supply circuitry configured to power an output load, and a processor configured to generate configuration information that configures a remote device with the capability to control the power supply circuitry. The processor may also be configured to transmit the configuration information with a network interface to the remote device in response to a triggering event associated with the remote device. In response to receipt of the configuration information, the remote device may be configured to generate a control interface. A user of the remote device may control the power supply circuitry through the control interface.

Abstract: A portable DC power manager (400) includes an internal power bus (410) and a plurality of device ports (1150, 1160, 1170, 1180, 1190, 1200) for connecting with external power and energy sources, external power loads and other external power managers. Each device port is isolated for the internal power bus by controllable switches (A, B, C, D). Power converters (440, 442, 510) may be disposed between device ports and the internal power bus to convert voltages and attenuate current amplitude. Energy management schema operating on the power manager sums available power and allocates the available power to connected power loads according to power priority settings. A hot-change-over circuit (1300) connects additional sources to the internal bus in response to a voltage drop on the internal power bus. A compact and lightweight package (1100) enables a portability.

Abstract: A peripheral power management system includes a power monitor for determining a power consumption characteristic of a computing processor and a controller for generating a reference power signal based on the power consumption characteristic. The peripheral power management system also includes a power regulator control signal generator for generating a power regulator control signal based on the reference power signal. The power regulator control signal controls a peripheral device power regulator which regulates an electrical supply power of a peripheral device. In this way, the peripheral power management system controls regulation of the electrical supply power of the peripheral device based on the power consumption characteristic of the computing processor. In some embodiments, the peripheral power management system determines the power consumption characteristic of the computing processor by monitoring communication on a serial voltage identification bus.

Abstract: A multiple-level power control system is provided, which includes a power state controller, an electric power device, and a multi-level power driver. The power state controller outputs a phase-notch pattern. The multi-level power driver drives the electric power device at one of a plurality of power levels, decodes the phase-notch pattern as a power step command, and switches from one of the power levels to another one of the power levels according to the power step command.

Abstract: In one aspect, a method includes protecting passive components connected to a high-frequency generator. In another aspect, a system includes a high-frequency generator having an HF source generating a high-frequency power signal at a fundamental frequency, and having a first control circuit which is fed with a signal related to an HF power transmitted by a high-frequency cable between the high-frequency generator and a load.

Abstract: A particular method includes, prior to issuing a recommendation by an adaptive voltage scaling (AVS) system, performing a first iteration of an AVS operation to sample characteristics of a semiconductor device to determine a first adjustment recommendation. The method further includes performing at least one additional iteration of the AVS operation to determine at least one additional adjustment iteration. When a threshold number of consecutive adjustment recommendations are consistent, the method includes issuing the recommendation by the AVS system.

Abstract: In some embodiments, a system including an electronic device. The electronic device includes an electric power input configured to receive an electric power signal and has an input line terminal and an input neutral terminal. In some embodiments, the electric power input can also have an input ground terminal. The electronic device includes a metal oxide varistor protection module configured to protect at least one of the system or the electronic device. The electronic device includes a ground detection module configured to indicate the presence of an electric ground. The electronic device includes an electric power output having an output line terminal and an output neutral terminal. In some embodiments, the electric power output can also have an output ground terminal. The electric power input, the metal oxide varistor protection module, the ground detection module, and the electric power output are electrically coupled in series with each other. Other embodiments are disclosed.

Abstract: This is generally directed to adjusting signaling properties based on cable attributes. In some embodiments, the cable attributes can include information such as the length of a cable, the diameter of a cable, the type of plug on a cable, the type of or presence of shielding on a cable, or any combination of the above. This information can then be used to determine the appropriate signaling properties for that cable (e.g., with respect to an EMC standard). The appropriate signaling properties may, for example, optimize the signal that is used to drive the cable while still allowing the cable to generate emissions that are within acceptable EMC standards. In some embodiments, the appropriate signaling properties can include factors such as the drive strength of the signal, the slew rate of the signal, the maximum voltage of the signal, the frequency of the signal, or any combination of the above.

Abstract: A power supply system includes a battery and a power management system. The power management system is coupled to the battery and to an external power source that is operable to charge the battery using a first charge level. The power management system is operable to determine that a battery power level of the battery is greater than a first predetermined level that depends on a battery storage option and, in response, disable power from being supplied from the external power source such that power is supplied from the battery until the battery power level is below the first predetermined level. The power management system is also operable to determine that the battery power level of the battery is less than the first predetermined level and, in response, charge the battery with a second charge level that is less than the first charge level until the battery power level is above a second predetermined level that depends on the battery storage option.

Abstract: Disclosed is a voltage-current characteristic generator that includes: a voltage source; a current source; a selector for selecting and outputting the output of either the voltage source or the current source; a sensing portion, connected to an output of the selector, for outputting the output of the selector and for sensing, and feeding back, the voltage and current of the output; and a controller for receiving the voltage and current detected by the sensing portion and for setting the subsequent outputs in the voltage source and the current source, wherein, in addition to setting the subsequent outputs, the controller evaluates an operating mode wherein the subsequent output from the selector is to be from either the voltage source or the current source.

Abstract: A multifunctional printer 10 comprises an operation unit 13 making image formation requests, an image forming unit 16 forming an image in response to an image formation request issued from the operation unit 13 or an external device, a determination unit determining whether the image formation request is issued from the operation unit 13 or the external device, a main power source 23 activating the operation unit 13 and image forming unit 16 to bring them into a usable state, and a control unit actuating the image forming unit 16, when the main power source 23 completely activates the image forming unit 16 and the determination unit determines that the image formation request is a request issued from the external device, regardless of whether the operation unit 13 is activated or not.

Abstract: An electric power planning apparatus is provided. The apparatus has an initial plan creating section, a generation amount probability density distribution creating section, an economic load dispatch calculating section, and a display section. The initial plan creating section creates an initial plan based on a demand predicted value, a predicted value of a natural energy electric power source power generation output amount, and electric power source equipment data. The generation amount probability density distribution creating section creates a probability density distribution using fluctuation bands of the demand and of the natural energy electric power source power generation output amount. The economic load dispatch calculating section calculates an output allocation based on the initial plan and the probability density distribution to create a prediction distribution of a power generation output of the controllable electric power source. The display section displays the prediction distribution.

Abstract: A system manages consumption of power supplied by at least one electric utility to multiple power consuming devices. Power flow to the power consuming devices is enabled and disabled by controllable devices controlled by one or more client devices. According to one embodiment, a group of one or more client devices to which to communicate a power control message is determined. The power control message indicates at least one of an amount of electric power to be reduced and an identification of one or more controllable devices to be instructed to disable a flow of electric power to one or more associated power consuming devices. The power control message is communicated to the determined group of client devices to initiate a power reduction event. Subsequent to initiation of the power reduction event, a determination is made that at least one controllable device has prematurely exited the power reduction event.

Abstract: A power supply system providing communication from a master module to at least one slave module via transients, to alter operation of a load, is provided. The master module output a supply voltage that is either a normal supply voltage or a reduced supply voltage. The outputted supply voltage depends on input corresponding to a communication to be sent to the slave module to alter operation of the load of the slave module. The slave module receives the supply voltage and interprets the received supply voltage, which may vary between the normal and reduced supply voltages, to determine what the communication from the master module is. The slave module then uses information from the communication to appropriately alter operation of its load.

Abstract: An LED driver circuit is disclosed. The top of a string of series connected LED segments is connected to the output of a rectifier, which in turn is connected to an AC source. The string is tapped at various locations, including the bottom of the string. Each segment can consists of any number of serial or parallel connected LEDs. Current control elements or regulators sink current at each tap and are sequentially turned on and off one at a time, tracking the rectified sine wave voltage. Voltage across each regulator and current when conducting is individually controllable. The regulators may control current in a multitude of ways, including a constant current, or a current dependent on voltage across the regulators including a resistor, or a combination. The driver is self-commutating, with the sequencing of the current control elements an inherent feature closely integrated with the current control elements and providing optimal performance over variable operating conditions.

Abstract: A power control method includes: detecting a first value of power required for a terminal; detecting a second value of power supplied from a power supply device; comparing the first value with the second value; and controlling power supplied from the power supply device to the terminal according to a result of the comparison.

Abstract: An integrated circuit includes a peripheral circuit, a voltage supplying circuit, and a controller The voltage supplying circuit is configured to select one or more second pumps from the plurality of first pumps in response to a function select signal and generate a corresponding one or more operation voltages to be supplied to the peripheral circuit. The controller is configured to control the peripheral circuit and the voltage supplying circuit in response to an operation command and transmit the function select signal corresponding to the operation command to the voltage supplying circuit.

Abstract: An apparatus and method is described herein for providing a dynamic pulse scheme for a voltage supply. A load (current) demand event of a processor is either predicted and/or detected. In response to the current demand event, such as a change in the current demand; a temporary, transient voltage pulse is generated by a voltage supply to compensate for the current transient demand. As result, dynamic voltage supply pulses generated based on the load current or the prediction of the load current demand increases performance, decreases power consumption, and saves expensive addition of compensation components, such as capacitors to a processor package.

Abstract: An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is coupled to a source of electrical power and includes a pair of transistors and is adapted to receive a control signal and to produce an alternating current power signal. The frequency of the alternating current power signal is responsive to the control signal. The frequency dependent reactive device is electrically coupled to the pair of transistors for receiving the alternating current power signal and producing an output power signal. The frequency dependent reactive device is chosen to achieve a desired voltage of the output power signal relative to the frequency of the alternating current power signal. The control element senses an actual voltage of the direct current power signal and modifies the control signal delivered to achieve the desired voltage of the direct current power signal.

Abstract: A system and method that analyzes at least one aspect of the power grid for demand response in order to reduce feeder circuit losses is provided. The system and method may use a demand response model to select one or more factors for the demand response, such as selecting a subset of customers for demand response from a larger pool of available demand response customers. The demand response model may include a grid structure component, such as an indication of the particular customer's position in the grid, and a dynamic operation component, such as a real-time measurement of current in the feeder circuit. By using the demand response model, feeder circuit losses may thereby reduced.

Abstract: An audio controlled power supplying system is disclosed, the audio controlled power supplying system comprises an audio input unit receiving an audio signal from an audio source, a processor electrically coupled to the audio input unit, the processor receives the audio signal and analyzes the audio signal to generate a control signal; and a power regulator electrically coupled to the processor, the power regulator receives the control signal from the processor and regulates an input power signal of a power source according to the control signal to generate a output power signal.

Abstract: A driving circuit includes a first driving module, configured to operate at a first operating voltage in a first mode and configured to be deactivated in a second mode; and a second driving module, wherein at least part of the second driving module operates at a protection voltage in the first mode and operates at a second operating voltage in the second mode, wherein the second operating voltage and the protection voltage are lower than the first operating voltage.

Abstract: A voltage increasing control circuit is connected to a power supply to regulate power supplied to a load. The voltage increasing control circuit includes a voltage increasing unit configured to increase voltage that is supplied from the power supply, and supply the voltage to the load. A power estimation unit determines whether or not to increase the power supplied to the load. A voltage control unit controls the voltage increasing unit. When the power estimation unit determines to increase the power supplied to the load, the voltage control unit controls the voltage increasing unit to increase the power supplied to the load.