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| Number | Title | Issue Date |
| 8125103 | Semiconductor device system in package A semiconductor device includes, in one package: a plurality of semiconductor chips having different operating voltages; and a power supply circuit configured to receive an input voltage from an external power supply and supply operating voltages to the semiconducto... | 02/28/2012 |
| 8093756 | AC power systems for renewable electrical energy Renewable electrical energy is provided with aspects and circuitry that can harvest maximum power from an alternative electrical energy source (1) such as a string of solar panels (11) for a power grid (10). Aspects include: i) controlling elect... | 01/10/2012 |
| 8080901 | Multi-source integrated electricity generation from novel smart roads and pavements An electricity generation system that uses smart pavement is presented, which pavement is comprised of materials that use solar radiation, piezo electricity, and temperature differentials within the road surface itself to create electric power. The pavement is multi... | 12/20/2011 |
| 8063513 | Power source and method for controlling operational power The solution controls electric operational power to be fed to an amplifier. The control can be carried out, for instance, in accordance with a predetermined signal. The operational power is fed to the amplifier with a voltage source unit and a current source unit, a... | 11/22/2011 |
| 8008808 | Method and apparatus for controlling a hybrid power system The present invention provides a simplified method of controlling power among the various sources and loads in a power system. Power generating sources are each connected to a common DC bus through a converter designed to optimize power flow to the DC bus. A DC stor... | 08/30/2011 |
| 7999411 | Electronic card connector, level-shifting device and digital television receiver An electronic card connector is used to connect an electronic card to an electronic device, such as a level-shifting device. The electronic card connector includes an insert slot unit and a switch unit. The insert slot unit is adapted for insertion of the electronic... | 08/16/2011 |
| 7944090 | Multi-output power conversion circuit A multi-output power conversion circuit is provided for converting an input voltage into a standby voltage and a first output voltage. The multi-output power conversion circuit includes a transformer, a power switching circuit, a first rectifier-filter circuit, a se... | 05/17/2011 |
| 7394168 | Power system for a telecommunication facility Disclosed is a method of supplying DC power to equipment using proton exchange membranes (PEMs). PEMs run on hydrogen to produce DC electrical power. In the disclosed embodiment these PEMs are used as an alternative source of power to AC sources. One of these other ... | 07/01/2008 |
| 7362007 | Hybrid uninterruptible power supply system An apparatus, system, and method for supplying an uninterruptible power source to a dual power device capable of being alternately powered through either a primary power input connected to a primary power source or a secondary power input connected to a secondary po... | 04/22/2008 |
| 7353084 | Generator controller A generator controller, in its various embodiments, displays genset fault messages, a genset elapsed time hour meter, service countdown reminder, monitors battery voltage changes over multiple periods of time to establish and display the “battery level,” uses th... | 04/01/2008 |
| 7334137 | Memory interface systems that couple a memory to a memory controller and are responsive to a terminal voltage that is independent of supply voltages for the memory and the memory controller Memory interface systems include one or more channel lines that couple a memory to a memory controller such that the channel line(s) are responsive to a terminal voltage that is independent of supply voltages for the memory and the memory controller. Because the mem... | 02/19/2008 |
| 7294997 | Electrical meter system with color coding features A communication system between a plurality of electrical loads and at least one electrical measurement device is configured with a plurality of wires grouped in pairs. Each pair of wires is uniquely color coded to facilitate installation of each electrical load.... | 11/13/2007 |
| 7276807 | Wind turbine dump load system and method A wind turbine braking system including: a wind turbine including turbine blades and a control system; a generator coupled to the turbine blades; a generator converter coupled to the generator and connectable to a utility power grid; at least one dump resistor coupl... | 10/02/2007 |
| 7274114 | Integrated tracking voltage regulation and control for PMUIC to prevent latch-up or excessive leakage current A tracking and control method and circuit for use in a power management unit integrated circuit (PMUIC) that enables multiple voltage regulator outputs to maintain a same voltage or a ratiometric relation to a reference voltage source. When the reference voltage sou... | 09/25/2007 |
| 7254048 | Power supply capable of AC and DC input utilizing winding of transformer as boost inductor A programmable AC/DC power converter receives a plurality of input voltages and outputs a single voltage from an input voltage system. A transformer receives the single voltage. One of the plurality of input voltages is provided at a center tap of a secondary windin... | 08/07/2007 |
| 7250231 | Auxiliary fuel cell system Auxiliary fuel cell system that provides backup power to a primary power source, and energy-consuming systems that are otherwise associated with at least one primary power source and at least one auxiliary fuel cell system. The auxiliary fuel cell system includes at... | 07/31/2007 |
| 7246249 | Reproduction control of reproduction apparatus based on remaining power of battery A reproduction apparatus and method for reproducing selected digital data reproduces digital data selected by a user, detects remaining power of a battery, and determines whether the selected digital data can be reproduced to the end or not based on the detected rem... | 07/17/2007 |
| 7233086 | Power line conditioner An electrical power conditioning apparatus in accordance with the present invention generally includes an electrical input for receiving power from the power source, a surge suppression circuit and a plurality of electrical outlets. A plurality of parallel channels ... | 06/19/2007 |
| 7230819 | Mobile power system A mobile power system for producing power at a desired location includes a first power generating device of a first type coupled to a transportable housing, and a second power generating device of a second type coupled to the transportable housing. The first type of... | 06/12/2007 |
| 7229301 | Motor-switch arrangement for a hand-held power tool A motor-switch arrangement for a hand-held power tool includes a drive motor (12), an actuating switch (20) with a contact plug (24), and an adapter (44) arranged between the contact plug (24) and the drive motor (12) and ha... | 06/12/2007 |
| 7230353 | Charging circuit in uninterruptible power supply system A charging circuit in a back-up power system is provided. The charging circuit includes an output terminal electrically connected to a main power for providing an AC output voltage, a transformer having a secondary electrically connected to the output terminal, an e... | 06/12/2007 |
| 7198520 | In-line remote controllable power switch An apparatus for powering one or more devices is provided. The apparatus includes a housing that has a power input connector that directly receives a power cord and a power output connector connected in series to the power input connector. The housing also contains ... | 04/03/2007 |
| 7193873 | Cradle for receiving an adapter A cradle casing has a DC/DC adapter to receive DC power from a DC power source and generate a first DC power signal. A sleeve accepts an AC/DC adapter, and guides movement of the AC/DC adapter when the AC/DC adapter is inserted into the cradle casing. The AC/DC adap... | 03/20/2007 |
| 7190091 | Selectable source input power supply A selectable source input power supply is disclosed. According to one embodiment, a power supply is provided comprising an input stage including an input connector to couple the power supply to either of an AC input voltage or a DC input voltage, and an actuatable i... | 03/13/2007 |
| 7148659 | Programmable AC/DC power supply A programmable AC/DC power converter receives a plurality of input voltages and outputs a single voltage from an input voltage system. A transformer receives the single voltage. One of the plurality of input voltages is provided at a center tap of a secondary windin... | 12/12/2006 |
| 7075769 | Next connect electrical receptacle assembly An electrical assembly including a plurality of electrical modules, each of the plurality of electrical modules being sequentially electrically connected to at least one other of the plurality of electrical modules. Each of the plurality of electrical modules includ... | 07/11/2006 |
| 7072200 | Cradle for receiving an adapter A cradle casing has a DC/DC adapter to receive DC power from a DC power source and generate a first DC power signal. A sleeve accepts an AC/DC adapter, and guides movement of the AC/DC adapter when the AC/DC adapter is inserted into the cradle casing. The AC/DC adap... | 07/04/2006 |
| 7053504 | Switching system to make energy available to electric consumers of different energy requirement A switching system, preferably for use in the power supply of motor vehicles, and having one chargeable energy memory of a specific voltage level and consumers situated in the circuit of the energy memory is further developed so that a significant power load is thor... | 05/30/2006 |
| 7054177 | Power adapter The present invention provides a power adapter which includes a power input connector, a voltage transfer and a power output connector. The power input and output connectors connect conductively to the voltage transfer, and the power input connector engages with a D... | 05/30/2006 |
| 6605881 | AC interconnection apparatus supplying AC power from a commercial power system and from a solar cell An AC interconnection apparatus has an input terminal for a commercial power system, a connection terminal to a solar cell, an output terminal connected to a load, an inverter for converting the output voltage of the solar cell into an AC voltage, and a c... | 08/12/2003 |
| 6586850 | Device with multiple, concurrently-installed power molecules and method for controlling same A device such as an electrotherapy device implementing the invention includes multiple power module receptacles each of which is configured to received at least one type of power module, and a power management system that selectively routes power provided... | 07/01/2003 |
| 6483204 | Power supply system with information exchange between plural loads and plural power sources A notebook-sized personal computer representing consumption-side hardware sends electric power data, which indicates an electric power (including voltage, alternating or direct current, cycle and wave shape) suited to the personal computer, to an electric... | 11/19/2002 |
| 6465912 | Power transfer device A power transfer device includes a first current transferring section connected between a first AC power source and a load, a second current transferring section with first and second switches which have opposite conduction directions, connected in parall... | 10/15/2002 |
| 6356471 | Dynamic feedback adaptive control system and method for paralleling electric power sources and an uninterruptible power supply including same A connectionless paralleling and load sharing system and method for power sources are presented. The invention provides a dynamic feedback adaptive control system that enables proper load sharing among paralleled power sources without the need for interco... | 03/12/2002 |
| 6320280 | Electronic device fitted with power generators An electronic device has a housing having a first transparent surface and a second transparent surface opposite to the first transparent surface. A timepiece movement is disposed in the housing and has a display for displaying time through the first trans... | 11/20/2001 |
| 6278202 | Power supply circuit and a disk drive device provided with the power supply circuit To reduce a power loss and elongate the service life of a battery in a power supply circuit for a widely variable power-consuming load. In a device with a dry battery and a rechargeable battery, the rechargeable battery supplies the power while its output... | 08/21/2001 |
| 6268666 | Bi-directional power conversion apparatus for combination of energy sources A bi-directional power converter apparatus and method of conversion is disclosed which comprises three active elements (output, primary, and auxiliary switches) and two passive components (primary and auxiliary energy storage elements) coupled so as to en... | 07/31/2001 |
| 6252310 | Balanced modular power management system and method An electrical distribution system and method has storage battery mechanism of very large equivalent capacitance providing excellent ripple filtering and an ideal path to ground, and filter capacitor mechanism of microfarad size providing DC blocking and l... | 06/26/2001 |
| 6208040 | Customer side power management system including auxiliary fuel cell for reducing potential peak load upon utilities and providing electric power for auxiliary equipment A customer side power management system including at least one auxiliary fuel cell(s) source is provided. When the power derived from the electric utility reaches a predetermined threshold level, all remaining power needed to supply the customer's loads i... | 03/27/2001 |
| 6191500 | System and method for providing an uninterruptible power supply to a critical load A system and method for providing an uninterrupted supply of power to a critical load includes at least two uninterruptible power supply UPS modules that receive power from separate utility sources. A controller controls the UPS modules so that the output... | 02/20/2001 |
