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| Number | Title | Issue Date |
| 8183711 | Power extraction from signal sinks A power extractor suitable for locations proximate to the sink of a signal channel is disclosed. The power extractor can generate power from the signal channel without substantially disturbing a quality of signals within the channel. In one embodiment, the power ext... | 05/22/2012 |
| 8169106 | Energy management system and control method using the same, for determining an operation mode of a high voltage direct current system The present disclosure relates to an energy management system (EMS) and a method using the same, wherein the EMS comprises, a communication module receiving a channel information of a high voltage direct current (HVDC) system via a network; a circuit realization uni... | 05/01/2012 |
| 8120202 | Electric power transmission system for wind turbine and wind turbine farm and method for operating same A method of operating a wind turbine includes energizing at least a portion of a power conversion assembly via an alternating current (AC) power source. The method also includes converting AC power to direct current (DC) power having a DC component and an AC compone... | 02/21/2012 |
| 8110942 | Standby saver A remote-controlled mains power switch is provided, which is suitable for supplying mains-powered equipment such as TVs or personal computers with electricity. The switch comprises mains power input, an electricity storage device, a control circuit and a sensor for ... | 02/07/2012 |
| 8097979 | System and method for optimizing regulated voltage output point A device includes a plurality of voltage regulators, and a test module. Each of the voltage regulators are configured to provide a regulated voltage to one of a plurality of subsystems. The test module is in communication with the voltage regulators, and is configur... | 01/17/2012 |
| 8080897 | Optimal sense location Optimal feedback sensing locations are determined based on minimizing the sum of the differences between actual voltages and nominal voltages at the devices being supplied by the voltage regulator. An optimal sense location may be determined to be a location (for ex... | 12/20/2011 |
| 8076796 | Adaptive power supply for telecommunications networks An adaptive power supply span powers devices used in telecommunications. It includes a power circuit and control circuit that receives power and sense signals therefrom and provides a control signal thereto and distinguishes between a first network interface load ha... | 12/13/2011 |
| 8072095 | Power management for power constrained devices Techniques are disclosed for optimizing power consumption in electronic devices that operate on battery-based or scavenged power. The power scavenged or otherwise supplied by such devices may therefore last longer, allowing longer performance on a given charge (whet... | 12/06/2011 |
| 8067854 | Output circuit A buffer driving capability control device is provided which can suppress occurrence of radiated noise due to a load driven by large driving power in the case where loads differing in driving power are connected to one terminal. The device includes an output buffer ... | 11/29/2011 |
| 8063507 | Multiple output switching power source apparatus A multiple output switching power source apparatus includes first and second transformers each having a primary winding, a first secondary winding, and a second secondary winding; a first control circuit adjusting a time for applying a DC voltage to the primary wind... | 11/22/2011 |
| 8063508 | Power supply scheme for reduced power compensation A power control system is described that reuses current from segregated circuits of the mobile device. In some embodiments, the segregated circuits (or “sections”) can be “stacked” in series (with respect to the power supply) such that power is more efficien... | 11/22/2011 |
| 8053924 | Structure of serial synchronous chopper An improved structure of serial synchronous chopper mainly includes an external synchronous rectifier power supply unit, an internal synchronous rectifier power supply unit, a synchronous voltage-stabilized control unit, an integrated driving circuit unit, a synchro... | 11/08/2011 |
| 8035249 | Distributed maximum power point tracking system, structure and process Distributed maximum power point tracking systems, structures, and processes are provided for power generation structures, such as for but not limited to a solar panel arrays. In an exemplary solar panel string structure, distributed maximum power point tracking (DMP... | 10/11/2011 |
| 8026636 | Apparatus and method for supplying power to electronic device An apparatus and method allows selection of either one of main power supplied from a battery and DC Output (DCO) power supplied from a DC/DC converter included in a power management integrated circuit (PMIC) as the input power of an LDO regulator and supply of the s... | 09/27/2011 |
| 8018089 | System controller for integrated lighting control panels An electrical distribution system is provided for selectively connecting an electrical power source to load devices comprising a plurality of panelboards each having a plurality of load circuit positions. A plurality of pairs of circuit breakers and switching device... | 09/13/2011 |
| 8018090 | Information processing apparatus and control method An information processing apparatus selects power having a higher voltage value out of power supplied via a plurality of external apparatuses, or selects power supplied from an external apparatus via a transmission line or power supplied from a power supply, whichev... | 09/13/2011 |
| 8013469 | System and process for power supply to a railway vehicle, converter, control unit, and air-conditioning unit for the system A power supply system for a railway vehicle is provided including a converter able to receive information from a transmission system between a power supply unit and air-conditioning units and to deduce from this information the demand for electrical power from each ... | 09/06/2011 |
| 7982337 | DC-DC converter control circuit There is provided a DC-DC converter control circuit, wherein a reference feedback signal related to a supply voltage to a load is compared to a reference oscillation signal to generate a result of comparison. The result of comparison is used as a switching control s... | 07/19/2011 |
| 7977816 | DC/DC boost converter with bypass feature An integrated circuit package includes a DC/DC boost converter for providing an output voltage at a program level to associated components of the integrated circuit package. The DC/DC boost converter includes a first mode of operation wherein the DC/DC boost convert... | 07/12/2011 |
| 7960860 | Power sourcing equipment device including a serial interface In a particular embodiment, a circuit device is disclosed that includes a power sourcing equipment (PSE) circuit having a plurality of high-voltage line circuits adapted to communicate with a respective plurality of powered devices via network cables. The PSE circui... | 06/14/2011 |
| 7944086 | System and method for load control A system is described including a master power saving device configured for connection with a master load. The master power saving device is configured to determine when the master load is in an operating condition and a non-operating condition, and the master power... | 05/17/2011 |
| 7944085 | Multiple output switching power source apparatus including multiple series resonant circuits A multiple output switching power source apparatus includes first and second switching elements Q1 and Q2, a first series resonant circuit connected in parallel with Q1 or Q2 and having a first current resonant capacitor and a primary win... | 05/17/2011 |
| 7936090 | Driving circuit and method for driving current-driven devices At the driving initiation, whether the output channels are enabled or disabled is determined by judging whether the voltages of the output channels are changed by a charging or discharging operation. The current output sources corresponding to the disabled output ch... | 05/03/2011 |
| 7936089 | Adaptive power architecture for hot-swappable electronic modules A system may include a module that includes a component, a logic device to provide an instruction on behalf of the component, and control logic to generate a desired output voltage signal in response to a constant current, where the desired output voltage signal ind... | 05/03/2011 |
| 7923860 | Switching power supply circuit capable of timing adjustment of signal A switching power supply circuit includes a plurality of switching regulators and a timing adjustment circuit. The plurality of switching regulators converts an input voltage input to an input terminal into a plurality of predetermined constant voltages, and outputs... | 04/12/2011 |
| 7915757 | Multi-output DC/DC converter Disclosed is a multi-output DC/DC converter controlling power-conversion switching in synchronization with a frequency of one output voltage among multiple output voltages in an LLC resonant DC/DC converter. The multi-output DC/DC converter includes a power conversi... | 03/29/2011 |
| 7915756 | Semiconductor device A semiconductor device including a redundant circuit which can operate even when power source in a circuit in part of the redundant circuit is short-circuited. A power source circuit, a power source control circuit to which a power source potential is input from the... | 03/29/2011 |
| 7911081 | Power supply control method and structure therefor In embodiment, a power supply system is configured to use a linear regulator to form a regulated voltage during a standby mode and to use the regulated voltage to form another regulated voltage. ... | 03/22/2011 |
| 7906868 | Fine tuned multiple output converter A secondary side voltage regulation scheme applied to a multiple output flyback converter. The output with the highest error voltage is selected to control the primary switch. The remaining outputs are regulated by varying the length of time that current is allowed ... | 03/15/2011 |
| 7898107 | Communication system, distribution element and network device There is disclosed a communication system comprising a distribution element, which is coupled to a power supply unit and to which a plurality of network devices can be connected. Each network device that is connected to the distribution element comprises at least on... | 03/01/2011 |
| 7884495 | Method and apparatus for hot swap of line replaceable modules for AC and DC electric power systems A method and an apparatus are used in hot swap of AC or DC line replaceable modules (40A). The apparatus according to one embodiment comprises a pin assembly (183), the pin assembly (183) being connectable to a module (40A) and connectabl... | 02/08/2011 |
| 7884496 | Large power multi-outputs power supply structure having relatively high efficiency in load range and controlling method thereof The configurations of a switched-mode power supply and a controlling method thereof are provided. The proposed switched-mode power supply includes a first output converter receiving a DC input voltage and generating a first high power DC voltage output and at least ... | 02/08/2011 |
| 7884497 | Power supply circuit Provided is a power supply circuit generating a desired voltage by voltage multiplication, and satisfying both a demand to reduce current consumption and a demand to enable operation with a low power voltage at the same time. A power supply circuit of the present in... | 02/08/2011 |
| 7880329 | Multi-channel switching regulator 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 sync... | 02/01/2011 |
| 7851942 | Circuit arrangement for supplying variable loads from three phases Disclosed is a circuit arrangement for supplying variable loads (I1, I2, M1, M2, O1, O2, O3) from three phases (L1, L2, L3), with a circuit arrangement having four groups of terminals (A11,... | 12/14/2010 |
| 7839016 | Maintaining output I/O signals within an integrated circuit with multiple power domains 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 ... | 11/23/2010 |
| 7830036 | Power electronic module pre-charge system and method A power electronics device with an improved pre-charge circuit configuration is provided. More specifically, the input of the motor drive module may accept an AC or DC source voltage. In this way, the pre-charge circuit of the motor drive module may be utilized whet... | 11/09/2010 |
| 7816811 | Portable power source to provide power to an electronic device via an interface A portable power source is configured for use with an electronic device. The portable power source cooperates and communicates with the electronic device via a peripheral bus to which the electronic device is attachable. The portable power source includes circuitry ... | 10/19/2010 |
| 7812479 | Power sampling systems and methods An automatic sensing power system automatically has a voltage sampling system that samples a voltage from an electrical device, determines a power requirement for the electrical device, converts power to the required level, and outputs the power to the electrical de... | 10/12/2010 |
| 7812478 | Power sampling systems and methods An automatic sensing power system automatically has a voltage sampling system that samples a voltage from an electrical device, determines a power requirement for the electrical device, converts power to the required level, and outputs the power to the electrical de... | 10/12/2010 |
