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| Number | Title | Issue Date |
| 8148847 | Power source system with continuously adjustable output An exemplary power source system includes a power source, controller, and a voltage fine adjusting unit. The power source includes a number of cells and a number of switches configured for connecting the cells in series or in parallel. The controller is configured f... | 04/03/2012 |
| 8120206 | Method of detecting a sustained parallel source condition A method of detecting a parallel source condition includes calculating a reactive power, comparing the reactive power to a predetermined threshold, and determining a parallel source condition in response to the reactive power exceeding the predetermined threshold. | 02/21/2012 |
| 8115340 | System for controlling power from a photovoltaic array by selectively configurating connections between photovoltaic panels A system for maximizing power output from a photovoltaic array includes a configurable photovoltaic panel having a series-parallel selector and a bypass selector electrically controlled by a node controller. Some embodiments further include a plurality of configurab... | 02/14/2012 |
| 8084887 | Modular electronically reconfigurable battery system An electronically reconfigurable battery includes a number of battery modules selectively interconnected by a number of electronic switches, wherein a selectable number of battery modules may be connected either in a series configuration or in a parallel configurati... | 12/27/2011 |
| 7952233 | Lavatory system A lavatory system having at least one wash station and at least one electrically operated fixture is disclosed. The lavatory system includes a control system for operating the at least one electrically operated fixture and a power supply system for powering the at l... | 05/31/2011 |
| 7893562 | Electric power supply system In an electric power supply system, a plurality of batteries (405, 406) are connected in series by a switch group (402 to 404, 407 to 409), and a higher voltage and a lower voltage are output through a terminal and a VOL terminal, respect... | 02/22/2011 |
| 7893561 | Modular electronically reconfigurable battery system An electronically reconfigurable battery includes a number of battery modules selectively interconnected by a number of electronic switches, wherein a selectable number of battery modules may be connected either in a series configuration or in a parallel configurati... | 02/22/2011 |
| 7847436 | Modular power supply A power supply including a plurality of power supply modules and method of operating such a power supply includes monitoring the state of individual power supply modules. The power supply modules are monitored to prevent the operation of the modules outside a predet... | 12/07/2010 |
| 7763993 | DC UPS with auto-ranging backup voltage capability A direct current (DC) uninterruptible power supply (UPS) having auto-ranging battery backup voltage capability is provided. At least one input is configured. A rectifier is connected to the at least one input. A common node is connected to the rectifier. At least on... | 07/27/2010 |
| 7705490 | Integral stack columns Systems and methods for power conversion are illustrated. Power conversion architecture for fuel cell systems in particular are described that use dual bus architectures having stack segment pairs and a center-tapped neutral line, and/or an architecture employing in... | 04/27/2010 |
| 7692334 | Photovoltaic system having a solar module A photovoltaic system includes a solar module having at least one solar cell. In order to reduce the power loss of the solar module when a solar module is in shade or is defective, a semiconductor switching element is connected in parallel with the solar module and ... | 04/06/2010 |
| 7608945 | Apparatus for controlling power supply to electronic devices An apparatus for controlling a power supply includes a plug, a plurality of electrical outlets, a communication interface, an encoder, and a selecting circuit. The selecting circuit is electrically coupled between the electrical outlets and the plug. The encoder rec... | 10/27/2009 |
| 7528504 | Automatic power adapter An electrical device for automatically combining two input power source supply circuits with either aligned or unaligned phases, into a single operational circuit, with an output load capacity totaling approximately the sum of the two lower capacity power supply cir... | 05/05/2009 |
| 7492059 | High power architecture for power over ethernet A combiner for use with a powered device having high power needs, the combiner comprising: a first power input adapted to receive a first power signal over a first set of wire pairs utilized to carry communication data; a second power input adapted to receive a seco... | 02/17/2009 |
| 7456521 | Electronically reconfigurable battery An electronically reconfigurable battery includes a number of battery modules selectively interconnected by a number of electronic switches, wherein a selectable number of battery modules may be connected either in a series configuration or in a parallel configurati... | 11/25/2008 |
| 7414331 | Power converter system and method A power system for supplying power to a load is provided. The power system comprises a converter system comprising a first converter and a second converter and configured for operating in a first mode and a second mode. The first converter and the second converter a... | 08/19/2008 |
| 7378757 | Power generation system A power generating system includes a power generator generating DC power, and an inverter circuit for converting DC power into AC power. The power generator has a plurality of power generating modules each including a plurality of power generating units and at least... | 05/27/2008 |
| 7349813 | Fault tolerant power system architecture for fluid flow measurement systems To provide a fault-tolerant architecture to supply electrical operating power in fluid flow measurement applications, apparatus and associated systems, computer program products, and methods include an intelligent power module with redundant and electrically indepen... | 03/25/2008 |
| 7292495 | Integrated circuit having a memory with low voltage read/write operation An integrated circuit with a low voltage read/write operation is provided. The integrated circuit may include a processor and a plurality of memory cells organized in rows and columns and coupled to the processor, wherein a row of memory cells comprises a word line ... | 11/06/2007 |
| 7254002 | Reverse conduction protection method and apparatus for a dual power supply driver The invention is a dual stage power supply with a protection circuit for preventing reverse conduction through the lower voltage driver of the dual stage power supply and excess power dissipation when the higher voltage driver is on. In one embodiment of the inventi... | 08/07/2007 |
| 7222111 | Multi-utility energy control and facility automation system with dashboard having a plurality of interface gateways A multi-utility energy and facility automation control system has control center computer(s) connected to utility consuming systems and software that formats energy data, stores, retrieves, diagnoses and acts in response to changes and includes a multi-utility maste... | 05/22/2007 |
| 7170197 | Switching power supply controller with built-in supply switching The invention provides a switching converter comprising as few as two high-side switching transistors and a low-side rectifying device, along with a control circuit. The switching converter is capable of operating from a main supply source or an auxiliary supply sou... | 01/30/2007 |
| 7119458 | A/C—D/C power system with internal fuel cell An A/C-D/C-F/C power system is provided that includes a portable power unit that can accept electricity from a number of alternative sources including an AC power source, a DC power source, a battery, and a direct oxidation fuel cell. In accordance with one embodime... | 10/10/2006 |
| 7116014 | Method and apparatus for stabilizing “DC-DC Transformers” in a distributed power system using remote sense The output voltage of a dc—dc transformer having a ratio of approximately m/n, and which is powered from a main power supply having a remote sense input, can be stabilized by feeding the output of the dc—dc transformer to the remote sense input of the main power... | 10/03/2006 |
| 7098548 | 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 ... | 08/29/2006 |
| 7085123 | Power supply apparatus and power supply method A power supply apparatus and a power supply method are described, wherein the non-polar characteristics of the electrodes of a capacitor is utilized to improve the energy utilization efficiency of a battery through reciprocating switches of polarity connection betwe... | 08/01/2006 |
| 7075194 | Electronically reconfigurable battery An electronically reconfigurable battery includes a number of battery modules selectively interconnected by a number of electronic switches, wherein a selectable number of battery modules may be connected either in a series configuration or in a parallel configurati... | 07/11/2006 |
| 7061141 | Parallel operation method for an uninterruptible power supply apparatus A method for parallel non-redundancy operation of uninterruptible power supply apparatuses having a bypass circuit without using an additional common circuit. In the method of operating in parallel uninterruptible power supply apparatuses, each apparatus has two ope... | 06/13/2006 |
| 7038984 | Power backup method for disk array storage apparatus HDD boxes 831 to 83n are each incorporated with a secondary battery box 87, a non-isolated DC/DC converter 89, and an HDD 91. Logical circuit boards 851 to 85n are each inco... | 05/02/2006 |
| 7002931 | Power efficient line driver with high performance echo cancellation for 1000BASE-T A 1000BASE-T transceiver linked to an unshielded twisted pair (UTP) through a transformer currently transmits and receives outgoing and incoming signals via the UTP. The transceiver employs an energy efficient class B or AB line driver supplying asymmetric output cu... | 02/21/2006 |
| 6960838 | Power system for a telecommunication facility A power system specifically designed to provide reliable electrical power to a telecommunication facility is disclosed. The system includes a number of microturbine generators adapted to provide AC power that is then rectified to DC power by an array of rectifiers. ... | 11/01/2005 |
| 6916568 | Fuel cell module with heat exchange and electricity exchange functions The present invention relates to a fuel cell module with heat exchange and electricity exchange functions, consisting of one heat dissipation module and one electricity exchange module. The heat dissipation module is composed of several hydrogen cans and one heat di... | 07/12/2005 |
| 6849967 | Automatic transfer switch for microturbine and method of operation A multi-mode transfer switch selectively operates in a first operating mode in which the utility source alone is connected to the load bus, a second operating mode in which only the microturbine is connected to the load bus, and a third operating mode in which both ... | 02/01/2005 |
| 6795493 | Circuit for a transceiver output port of a local area networking device A circuit for a transceiver output port of a local area networking device is provided and includes a first and a second current source coupled to the ground, a first and a second resistor coupled to the supply voltage, wherein the resistances of the first and the se... | 09/21/2004 |
| 6703722 | Reconfigurable plural DC power source power system responsive to changes in the load or the plural DC power sources A power system for supplying a power requirement of a load is described and which includes a plurality of DC power sources having at least one fuel cell, and which provides power to a load; and a control electronics assembly is provided and which is elect... | 03/09/2004 |
| 6664660 | Parallel power supply system with over-voltage protection circuit A parallel power supply system with an over-voltage protection circuit is provided. The parallel power supply system includes two power supplies which are paralleled for providing a stable DC output voltage, two isolated diode electrically, each of which ... | 12/16/2003 |
| 6661119 | System and method for distributed power supply supporting high currents with redundancy A system and method for distributing power to multiple circuit boards coupled with a "system" backplane is disclosed. Separate redundant pairs of power supplies are provided for each circuit board in a load sharing arrangement. Each set of power supplies ... | 12/09/2003 |
| 6646360 | System, method and apparatus for connecting electrical sources in series under full load A circuit connects a low-voltage high-current DC power source (PL) in series with a high-voltage low-current DC source (PD). The series connection is made under full power by using the second source PL to commutate the loa... | 11/11/2003 |
| 6635817 | Solar cell array having lattice or matrix structure and method of arranging solar cells and panels A solar cell array is provided having a lattice or matrix structure such that no two solar cell devices are connected purely in series or purely in parallel. Accordingly, if a single solar cell device fails, there is an alternate path by which the output ... | 10/21/2003 |
| 6624535 | Digitally controlling the output voltage of a plurality of voltage sources A plurality of the voltage sources may be selectively connectable in a variety of different arrangements using a switch array whose connections are determined by a programmable controller. For example, a desired output voltage may be automatically provide... | 09/23/2003 |
