Abstract: The invention provides, in some aspects, a power supply that includes a first rectifier circuit configured to receive a first AC input and to generate a first DC output, a second rectifier circuit configured to receive a second AC input and to generate a second DC output, and a storage unit (e.g., a capacitor) configured to store charge from both the first DC and the second DC outputs. The storage unit can itself be configured to supply that stored charge as DC power, e.g., to a computer or other coupled device.

Abstract: The invention provides an integrated-inverter electric compressor and an inverter device thereof which allow handling of the inverter device by neither touching nor holding a CPU substrate. An integrated-inverter electric compressor includes an inverter module integrating a power-related metal substrate on which a power semiconductor switching device is mounted and a resin case integrally insert-molded with a plurality of terminals, and is provided with a CPU substrate on which a control and communication circuit having a device that operates at low-voltage is mounted on the upper surface of the inverter module, wherein the resin case is integrated with a grip which extends in a horizontal direction at an upper edge of a circumference thereof.

Abstract: A redundant power supply connected to a common load is provided. Each power supply is connected to the common load through a series of MOSFET pairs. Each MOSFET in a MOSFET pair is individually controlled to reduce power consumption as well as the need for heat sinks on discrete diodes. Moreover, by providing individually controllable MOSFETs the present invention is capable of switching between power supplies without shorting the power supplies or having a significant drop in bus voltage.

Abstract: A power distribution system comprises a DC bus supplied by an electrical generator and a resistive load connected to the DC bus. A switching device connects to the DC bus and the load and is configured to periodically open the circuit between the resistive load and the DC bus for a reoccurring period of time. The switching device senses the load on the DC bus and changes the length of the period of time based on the sensed voltage.

Abstract: An AC/DC power supply, a method of delivering DC power at multiple voltages and a computer data storage system. In one embodiment the AC/DC power supply includes: (1) a transformer having a primary winding couplable to an AC power source and a secondary winding inductively couplable to the primary winding and (2) multiple DC voltage rails coupled to the secondary winding at designated locations and configured to deliver power to loads coupled thereto, each of the DC voltage rails configured to dynamically transfer therebetween an available portion of the power in response to changes in the loads.

Abstract: A temporary voltage supply for a consumer includes a switching device with an auxiliary power supply; a control device supplied by the auxiliary power supply if an operating power supply fails; and a switching device which is activated by the control device and actuates the consumer via auxiliary power from the auxiliary power supply. The auxiliary power supply is configured in such a manner that, upon request, by actuation of a switch, the control device is provided with a sufficient amount of power for a final operating sequence after the operating power supply fails.

Abstract: A power supply includes an isolation transformer. The isolation transformer includes a primary winding and N secondary windings, where N is an integer. The primary winding receives a first alternating current voltage. Each of the N secondary windings generates a second alternating current voltage. M rectifiers convert the second alternating current voltages to a direct current voltage, where M is an integer. X inverters convert the direct current voltage to a third alternating current voltage, where X is an integer. A reference transformer is electrically coupled between the X inverters and output terminals of the power supply, is connected in parallel with the output terminals, and is configured to provide at least one of a neutral reference and a ground reference.

Abstract: A controlling unit generates a pulse signal whose duty ratio is controlled so that the output voltage of each channel will be constant, and controls the main transistor and the rectification circuit of each channel in accordance with the pulse signal. The first synchronous rectification transistor is disposed in a direction such that the cathode of the body diode thereof is on the switching terminal side. The second synchronous rectification transistor is disposed in a direction such that the cathode of the body diode thereof is on the output terminal side. The controlling unit first turns on the first synchronous rectification transistor, and then turns on the second synchronous rectification transistor for a period of time in accordance with the pulse width of the pulse signal.

Abstract: An isolation circuitry and method are provided for coupling between a power supply and processing circuitry in order to provide power to the processing circuitry whilst hiding a power consumption characteristic of that processing circuitry. The isolation circuitry comprises a plurality of sub-circuits, with each sub-circuit comprising a capacitor, a first switch configured to provide a first connection between the capacitor and the power supply, a second switch configured to provide a second connection between the capacitor and the processing circuitry, and a third switch configured to provide a third connection across the capacitor to partially discharge the capacitor. Control circuitry controls the plurality of sub-circuits, such that within each sub-circuit the first switch, second switch and third switch are placed in an active state in a repeating sequence.

Abstract: A circuit interruption device (110) is provided in which an interruption element (112) and a fuse element (114) are configured electrically in parallel. The interruption element includes an electrical conductor and a current interrupter capable of severing the electrical conductor to eliminate its capacity to carry current. An exemplary embodiment of a circuit interruption device is capable of detecting an interrupt control signal and actuating in response to the signal.

Abstract: A multiple bi-directional input/output power control system includes a network of functional blocks housed in a single enclosure, providing DC power to one or more DC loads, and providing control and internal pathways, sharing one or more AC and/or DC power inputs. The system feeds back AC power from the DC power source into an AC input connection, and the fed-back AC power is shared by other AC loads. The system operates at least one alternative source of DC in a dynamic manner, allowing maximization of power generating capability at respective specific operating conditions of the moment. Power isolation may be handled by an AC isolation block right at a power input. Therefore all other blocks within a multi-function power control unit (MFPCU) are isolated from AC ground.

Abstract: An electrical distribution control system for a vehicle such as an aircraft may be provided fire-suppression protection without requiring that all control elements are located in a fire-containment enclosure. A primary electric load center (ECL) may be located in a fire-containment equipment bay. Secondary power control centers (SPC's) may be located away from the equipment bay and close to set of loads which are controlled by the SPC's. Each SPC may be provided with a fire detecting sensor that may signal the ECL to interrupt input power to the SPC in the event of a fire in the SPC. The SPC may be constructed from self-extinguishing material. In an absence of input power to the SPC, a fire may self extinguish, thus preventing flame propagation or production of excessive external heat.

Abstract: A portable electronic device disposed in a car is provided. The portable electronic device includes a power switch, a vibration sensor and a controller. The power switch is used for providing a first power at a first state and providing a second power at a second state. The vibration sensor is used for outputting a vibration signal after sensing the vibration of the car. The vibration sensor is used for terminating the output of vibration signal when not sensing the vibration of the car. The controller is electrically connected to the vibration sensor and the power switch. When the controller receives the vibration signal, the controller controls the power switch to be at the first state and provide the first power. When the controller does not receive the vibration signal, the controller controls the power switch to be at the second state and provide the second power.

Abstract: An apparatus for converting power includes at least one impedance matching network which receives an electrical signal. The apparatus includes at least one AC to DC converter in communication with the impedance matching network. Also disclosed is a method for powering a load and an apparatus for converting power and additional embodiments of an apparatus for converting power.

Abstract: When a remote start of an engine using a predetermined transmitter is performed, a security regarding theft of a vehicle can be prevented form being significantly deteriorated. The vehicle has a remote engine starter for remotely start an engine and a vehicle antitheft device for activating an alarm when there is a possibility of occurrence of vehicle theft. The remote engine starter and the vehicle antitheft device are connected to each other through a communication line. In a case where an engine start signal is supplied from the transmitter, the remote engine starter is caused to supply a start signal to the vehicle antitheft device through the communication line before causing a contact point closing signal to be supplied to an ignition relay.

Abstract: A system may provide integrated uninterrupted power supply for computer systems. The system comprise a first unit that outputs an AC input voltage, and produces an AC output voltage from a battery voltage in response to the AC input voltage being absent; and a second unit that produces a DC output voltage from the AC input voltage, and produces the DC output voltage from the battery voltage in response to the AC input voltage being absent.

Abstract: A smart dimmer for control of a lighting load from an AC power source can replace any switch in a three-way or four-way lighting control system. The smart dimmer can be connected on the line-side or the load-side of a three-way system with a standard three-way switch in the other location. According to one embodiment of the present invention, the dimmer includes two triacs to control the intensity of the connected lighting load. The dimmer preferably includes two gate drive circuits coupled to the gates of the triacs for rendering the triacs conductive each half-cycle of the AC power source. The gate drive circuits include sensing circuits for detect whether the gates currents are flowing after the triacs are rendered conductive. A controller is operable to determine the state of the lighting load in response to whether the gate current is flowing or not flowing.

Abstract: Different systems to achieve solar power conversion are provided in at least three different general aspects, with circuitry that can be used to harvest maximum power from a solar source (1) or strings of panels (11) for DC or AC use, perhaps for transfer to a power grid (10) three aspects can exist perhaps independently and relate to: 1) electrical power conversion in a multimodal manner, 2) alternating between differing processes such as by an alternative mode photovoltaic power converter functionality control (27), and 3) systems that can achieve efficiencies in conversion that are extraordinarily high compared to traditional through substantially power isomorphic photovoltaic DC-DC power conversion capability that can achieve 99.2% efficiency or even only wire transmission losses. Switchmode impedance conversion circuits may have pairs of photovoltaic power series switch elements (24) and pairs of photovoltaic power shunt switch elements (25).

Abstract: An integrated circuit is provided with a power domain which can be selectively powered-up or powered-down. An output circuitry serving to buffer a signal generated by the core circuitry within such a power domain has its own output power supply voltage. An adaptive voltage sensing circuit senses when the core power supply voltage to the core circuitry falls below a threshold level and generates a voltage-low signal. If output signal retention has been preselected to be active for the output signal concerned, then the output circuitry responds to the voltage-low signal by maintaining the output signal state (output signal driven low, output signal driven high or output signal in a high impedance drive state). The retention mode is preselected by a pulse with its value stored within a mode latch indicating whether or not retention is required. Thus, when the adapted voltage sensing circuitry itself senses the voltage level for the core circuitry falling below the threshold, it activates the retention operation.

Abstract: This invention is a multi-port power converter where all ports are coupled through different windings of a high frequency transformer. Two or more, and typically all, ports have synchronized switching elements to allow the use of a high frequency transformer. This concept and type of converter is known. This invention mitigates a number of limitations in the present art and adds new capabilities that will allow applications to be served that would otherwise not have been practical. A novel circuit topology for a four-quadrant AC port is disclosed. A novel circuit topology for a unidirectional DC port with voltage boost capabilities is disclosed. A novel circuit topology for a unidirectional DC port with voltage buck capabilities is disclosed. A novel circuit for a high efficiency, high frequency, bi-directional, AC semiconductor switch is also disclosed.