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| Number | Title | Issue Date |
| 8446043 | Photovoltaic array systems, methods, and devices and improved diagnostics and monitoring Devices, systems and methods for operating, monitoring and diagnosing photovoltaic arrays used for solar energy collection. The system preferably includes capabilities for monitoring or diagnosing an array by automatically disconnecting portions of the array during ... | 05/21/2013 |
| 8446042 | Photovoltaic array systems, methods, and devices with improved diagnostics and monitoring Devices, systems and methods for operating, monitoring and diagnosing photovoltaic arrays used for solar energy collection. The system preferably includes capabilities for monitoring or diagnosing an array by automatically disconnecting portions of the array during ... | 05/21/2013 |
| 8405249 | Multi-voltage power supply for a universal airplane ground support equipment cart An airplane ground support system includes a multi-voltage power supply. A control system within the power conversion module receives measurements to regulate the power module's output to a predetermined preset voltage level as mandated by the power output selection... | 03/26/2013 |
| 8368250 | Systems and methods for swapping span power modules in telecommunication networks The present disclosure generally pertains to systems and methods for swapping span power modules that are used for supplying power to network interface units (NIUs). A span power module in accordance with one exemplary embodiment of the present disclosure has logic ... | 02/05/2013 |
| 8334617 | System and method for energy optimization in photovoltaic generators An exemplary system for energy optimization in photovoltaic generators comprises a plurality of primary photovoltaic generators, a plurality of secondary photovoltaic generators, and a plurality of inverters. The secondary photovoltaic generators each comprise a plu... | 12/18/2012 |
| 8334616 | Photovoltaic integrated variable frequency drive A photovoltaic (PV) integrated variable frequency drive system having a variable frequency drive and an energy source. The variable frequency drive having a back end inverter, a DC bus electrically connected to the back end inverter, and an active front end electric... | 12/18/2012 |
| 8310100 | System and method for a redundant power solution A redundant power solution system, including at least a first and second input module, each configured for receiving input power, an output converter, wherein a first output line from the first input module and a second output line from the second module both feed i... | 11/13/2012 |
| 8297391 | Power supply system, vehicle provided with the same, power supply system control method and computer-readable recording medium bearing program for causing computer to control the power supply system First and second converters are connected in parallel to positive and negative lines, respectively. When a required power is smaller than a reference value, an ECU controls the first and second converters such that one of the first and second converters operates and... | 10/30/2012 |
| 8264101 | Beam power with multiple power zones A beam power source transmits a signal indicating power availability, receives a request for power in response, and beams power in response to the request. ... | 09/11/2012 |
| 8247924 | Power supply and method that maintains supply voltage in communications systems during a power supply interruption A power supply and associated method include a power supply converter having a power output and configured to provide a supply voltage through the power output to a communications device. A simplified boost circuit is connected to the power supply converter in paral... | 08/21/2012 |
| 8237310 | Voltage monitoring circuit for redundant power systems A redundant power system determines a rate of decline of a voltage supplied by a remote power source. The redundant power system further supplies power from a redundant power source to the remote power source based on the determined rate of decline of the voltage su... | 08/07/2012 |
| 8188618 | Power supply circuit A power supply circuit includes a first DC-DC converter, a second DC-DC converter, a voltage detection circuit, a delay circuit and a switch. The second DC-DC converter converts an output voltage of the first DC-DC converter into a second voltage and outputs the sec... | 05/29/2012 |
| 8129861 | Electrical voltage supply A voltage supply has a plurality of voltage sources to supply output connections. To achieve closed-loop control of the output voltage at the output connections, a closed-loop control circuit is provided that has an actuating element for each voltage source, and eac... | 03/06/2012 |
| 8129862 | Scalable highest available voltage selector circuit A scalable highest available voltage selector circuit determines the highest of n input voltages and connects the highest voltage to an output. The circuit has at least n circuit branches, each of which comprises n−1 “comparator” FETs connected between an inpu... | 03/06/2012 |
| 8106535 | Power conditioner A reliable power conditioner comprises: a power converting circuit for converting direct-current power obtained from a direct-current power source to alternating-current power of a commercial power system; a charger/discharger circuit for charging the direct-current... | 01/31/2012 |
| 8053928 | Power conversion circuit for reducing power loss and electronic device having such power conversion circuit A power conversion circuit includes a driving circuit, an activating circuit, a converter and an auxiliary power source. The activating circuit receives a first power signal. The converter is used for converting the first power signal into a second power signal. The... | 11/08/2011 |
| 8039991 | Cogeneration system with first and second power plants In a cogeneration system having a first power plant connected to an AC power feed line between a power network and an electrical load and a first internal combustion engine for driving the first power plant such that exhaust heat of the first engine is supplied to a... | 10/18/2011 |
| 8030801 | Multi-voltage power supply for a universal airplane ground support equipment cart An airplane ground support system includes a multi-voltage power supply. This system includes an air conditioning module and a control module having a display and a processor, the display and processor presenting an airplane type or class selection menu to airplane ... | 10/04/2011 |
| 8022574 | Maximum voltage source selector A maximum voltage source selector adapted for use in a semiconductor device operative in a disable state or an enable state is disclosed. The maximum voltage source selector includes an output unit having an output node providing a maximum voltage selected from a fi... | 09/20/2011 |
| 8018093 | Electronic circuit power supply device and electronic circuit An electronic circuit power supply device configured to selectively apply at least one first voltage or one second voltage to a power supply terminal of the electronic circuit that includes elements for applying to the power supply terminal a voltage variable from a... | 09/13/2011 |
| 8018094 | Interim power source An interim power source includes an energy storage, a switch coupled with the energy storage, and a control circuit coupled with the switch. The switch selects a source of power being delivered out of an output power terminal to an electronic device. The control cir... | 09/13/2011 |
| 8004116 | Highly efficient solar power systems 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 trans... | 08/23/2011 |
| 8004117 | Current bypass for distributed power harvesting systems using DC power sources A converter circuit providing multiple current bypass routes between the output leads to provide reliability in a series connection of several converters. If the converter malfunctions due to component failure, the current bypass routes provide a path for the curren... | 08/23/2011 |
| 7999413 | Power supply control circuit A power supply control circuit includes a first switch unit comprising an input terminal to receive a control signal, and a number of second switch units. The second switch units are each connected between an input power source and a power output terminal. The first... | 08/16/2011 |
| 7973428 | Supply voltage selector An active diode includes a plurality of transistors that implement a built-in offset voltage. The built-in offset voltage size can be determined by sizing of at least one of the plurality of transistors to prevent supply current flow from one supply source into anot... | 07/05/2011 |
| 7960864 | Arrangement and method for providing power to a circuit using switched capacitor techniques Switching power supplies are implemented using a variety of methods and devices. According to an example embodiment of the present invention, an arrangement provides power to a circuit by selecting between a first supply and a second supply. The arrangement includes... | 06/14/2011 |
| 7928604 | Universal system for controlling automated transfer switches in response to external stimuli A universal system used to monitor external conditions, particularly including environmental conditions, to preemptively activate secondary power sources and isolate electric loads from a main power source such as an electric utility's power grid for the purpose of ... | 04/19/2011 |
| 7923864 | Power feed system, terminal device, power feeding method and computer readable medium A power feed system includes: an information device; a terminal device that is connected the information processing device, and that has a power source; and a selection unit that selects, as power utilized by the terminal device, at least one of first power from the... | 04/12/2011 |
| 7919885 | Method of controlling battery power, power control apparatus, and portable device using the same A method for controlling batteries, a power control apparatus, and a portable device using the same are provided. Based on a connection status of a main battery and an auxiliary battery and the relative magnitudes of voltage of the main battery and the auxiliary bat... | 04/05/2011 |
| 7875996 | Multi-regulator power delivery system for ASIC cores An electronic product includes an application specific semiconductor chip (ASIC) device which includes in its circuitry both a linear regulator module configured to be coupled to an optional external capacitance and a capless regulator module configured to be couple... | 01/25/2011 |
| 7872375 | Multiple bi-directional input/output power control system 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. ... | 01/18/2011 |
| 7859134 | Self-configurable multi-regulator ASIC core power delivery A method for operating an electronic product having an application specific semiconductor circuit (ASIC) including in its circuitry both a linear regulator module for use with an optional external capacitance and a capless regulator module coupled to internal capaci... | 12/28/2010 |
| 7843085 | Systems for highly efficient solar power 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 trans... | 11/30/2010 |
| 7843084 | Electronic device capable of automatically selecting a power source An exemplary electronic device capable of automatically selecting a power source includes two power ports configured to connect to external power sources and a battery compartment configured to receive a battery module. The voltage of the battery module is higher th... | 11/30/2010 |
| 7750504 | Power supply apparatus to selectively output one of a plurality of input powers A power supplying apparatus supplying power to a predetermined system unit is provided with a power selecting unit which is directly connected to the system part, to select one of a plurality of inputs of power and output a selected power to the system unit; and a c... | 07/06/2010 |
| 7723867 | Power gating of circuits A control device for controlling power supplied to circuitry is disclosed. The circuitry comprises a plurality of portions, each of said plurality of circuit portions being arranged between a first voltage level source and a second voltage level source, said first a... | 05/25/2010 |
| 7719140 | Systems for boundary controlled solar power conversion A high efficiency photovoltaic DC-DC converter achieves solar power conversion from high voltage, highly varying photovoltaic power sources to harvest maximum power from a solar source or strings of panels for DC or AC use, perhaps for transfer to a power grid at hi... | 05/18/2010 |
| 7719139 | Power supply unit A power supply unit includes a main power-supply circuit and a secondary power-supply circuit which are connected to an alternating current power supply AC. The main power-supply circuit includes a full-wave rectifier and an input current control circuit correspondi... | 05/18/2010 |
| 7714463 | Device for controlling single-phase power conditioner for renewable energy system A device for controlling a single-phase power conditioner for a renewable energy system is disclosed. The device comprises: a power system, providing alternating current (AC) utility power; a renewable energy system, using a natural resource so as to generate direct... | 05/11/2010 |
| 7709975 | Redundant power supply system An exemplary redundant power supply system includes a first power supply, a second power supply, a first sensor, a control circuit, and a relay switch. The control circuit includes a first input terminal connected to the first power supply via a first sensor to rece... | 05/04/2010 |
