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| Number | Title | Issue Date |
| 8143742 | Power distribution controller and related systems and methods A power distribution controller includes electronic circuitry operable to receive power and distribute power, for simultaneous consumption, to a first power load and to one or more second power loads. The electronic circuitry is also operable to monitor the amount o... | 03/27/2012 |
| 8004111 | DC-DC switching cell modules for on-board power systems A DC-DC switching cell module includes a switch, a rectifier, an output filter coupled to the rectifier, and an input port for receiving an external PWM control signal from a controller. The switching cell module is configured to control the switch in response to th... | 08/23/2011 |
| 7936088 | Distributed power supply arrangement Distributed power supply arrangements and related methods are disclosed. Voltage is sensed at least one sense point in a power plane of a power distribution network. The power plane includes distributed source points and load points through which a plurality of powe... | 05/03/2011 |
| 7932630 | Packaging and details of a wireless power device A wireless power system includes a power source, power receiver, and components thereof. A current sensor senses the amount of current through the antenna. That amount of current is then used to adjust characteristics of the transmitting or receiving. ... | 04/26/2011 |
| 7750498 | Adaptive peak power management of load devices sharing a power source An adaptive power management system includes a number of load devices, including a burst load device operable with a time-varying load having a controllable duty cycle. A shared power source supplies power to the load devices. The system adaptively determines a powe... | 07/06/2010 |
| 7741730 | Method of determination of a distribution of energy to a plurality of electrical loads and corresponding system This method of determination of a distribution of energy to a plurality of electrical loads (121, 122, . . . , 12n) during a modulation period (T), the energy coming from at least one generator (14), the s... | 06/22/2010 |
| 7671484 | Device for controlling power transfer between two cores of a direct current network A device for controlling power transfer between two cores of a direct current network, in which the cores, which are source-charge interconnection nodes, include protective and contact members, placed in different areas of a power distribution system in which the di... | 03/02/2010 |
| 7602080 | Systems and methods to balance solar panels in a multi-panel system Systems and methods to balance currents among a plurality of photovoltaic units connected in series. In aspect, a management unit is coupled between a photovoltaic energy production unit and a string of energy production units. The management unit has an energy stor... | 10/13/2009 |
| 7388303 | Stand-alone electrical system for large motor loads An electrical power system that can be used to interconnect a plurality of generators to a plurality to loads while being rated at less than a total power consumed. The system is preferably used to distribute power for a Liquefied Natural Gas (LNG) facility. The sys... | 06/17/2008 |
| 7362005 | Isolated dual battery system An isolated dual power source system for isolating a first power source of a vehicle, connected to an engine starter, from a second power source of the vehicle which has an electrical circuit for distributing electrical power among the consumers, includes first and ... | 04/22/2008 |
| 7312539 | Output suppressing method of a plurality of dispersed power sources and dispersed power source managing system Regarding output suppression control of a plurality of dispersed power sources linked to a high-voltage-to-low-voltage transformer of a commercial power system, the partiality of the output suppression of a plurality of dispersed power sources is eliminated and, cos... | 12/25/2007 |
| 7288921 | Method and apparatus for providing economic analysis of power generation and distribution An economic dispatch program optimally allocates load demand specifying real power and reactive power to be generated by a power plant among various power generators in a manner so that each of the power generators are operated within its optimal operating space as ... | 10/30/2007 |
| 7151326 | System and method for safely and efficiently capturing power currently produced by already available power supplies to power electrical devices in a truck while its engine is turned off The present invention is directed to an electrical system and method for providing power to a truck's cab while the truck's engine is turned off. An already available primary power supply of the truck and a secondary power supply generally located on a trailer being... | 12/19/2006 |
| 7141893 | Highly available power distribution system A power distribution system and method may include a first power domain having a first plurality of power rails, a second power domain having a second plurality of power rails, where the first power domain is electrically independent of the second power domain, and ... | 11/28/2006 |
| 7049710 | Power bus for distributed ride through capability A monitoring system includes a power source, a power bus coupled to said power source, a plurality of power taps coupled to said power bus, each of said power taps having a ride-through capacitor operatively coupled thereto to provide power during brief interruption... | 05/23/2006 |
| 7018233 | Adapter socket for a rechargeable battery An device with a standard automotive electrical accessory plug may be connected to a standard rechargeable battery for a cordless power tool with an electrical adapter. The electrical adapter has a socket for receiving the automotive accessory plug. The sleeve and c... | 03/28/2006 |
| 7015596 | Electronic device display system and method A system and method are provided for displaying electronic devices operable when electrical power is supplied to them at respective operating voltages through respective power connectors. The system has a power supply providing input electrical current at a first vo... | 03/21/2006 |
| 6967583 | Systems and methods for indicating events in a power distribution system Disclosed are systems and methods for indicating events at various locations in a power distribution system. ... | 11/22/2005 |
| 6665590 | Operation support system An operation support system is arranged to effectively provide an operator of an energy supply facility for supplying a plurality of energies in different forms with a hint of an operating method in which energy safety supply and operation cost reduction ... | 12/16/2003 |
| 6465931 | Device and method for driving symmetric load systems The invention described herein is a novel power circuit capable of electrically driving devices whose mechanical action is accomplished by induced strain transducers. The power circuit neither recycles nor dissipates the energy returned from the near loss... | 10/15/2002 |
| 5917251 | Method and circuit arrangement to cover peak energy demands in electrical alternating or three-phase current networks A method and circuit arrangement for covering peak energy demand in an electrical AC or three-phase current network having a plurality of consumers of which at least some of the consumers are equipped with a stand-by power supply network having accumulato... | 06/29/1999 |
| 5763959 | Control cabinet for building automation systems A control cabinet for distributing power to a plurality of automated independent and parallel operated loads. A plurality of control cabinets can be interfaced with control cable to be supervised by one main controller. The main controller distributes low... | 06/09/1998 |
| 5635771 | Secondary accumulator charging/discharging for a motor vehicle using a controllable resistor In the case of an electrical wiring for a motor vehicle having a primary system which includes a voltage-controlled generator, a primary energy accumulator as well as at least one primary energy consuming device, and having a paralleled secondary system w... | 06/03/1997 |
| 5629862 | Rule-based procedure for automatic selection of contingencies in evaluation of dynamic security of a power distribution system Dynamic security analysis of a power system is divided into several diverse sub-problems, including sub-problems that may be analyzed using artificial intelligence ("AI") technology. A rule-based topological analysis procedure distinguishes between outage... | 05/13/1997 |
| 5608275 | Fault tolerant isolation between devices powered by separate power sources A fault tolerant isolation system providing fault tolerant electrical isolation between different components receiving power from separate power sources regardless of which of the power sources fails. One power source provides operating voltage to an isol... | 03/04/1997 |
| 5479358 | Urban energy system for controlling an energy plant supplying energy to a community An energy supply system operates to supply heat energies, such as cooling water, steam, heating water, etc. to a community, and the system has a function for predicting a future energy demand of the community and to correct it. In a system having an energ... | 12/26/1995 |
| 5436512 | Power supply with improved circuit for harmonic paralleling A UPS device adapted for parallel connection to a load along with one or more other UPS devices, having circuitry for sharing of the load, including load harmonics. A feedback network has an error signal circuit which generates an error signal representat... | 07/25/1995 |
| 5302857 | Portable power adapter An adapter for connecting an electrical load which is mobile, such as the electrical system of a pleasure craft, to a stationary power source, such as the electrical pedestal at a marina. In its preferred embodiment, the adapter serves to connect a higher... | 04/12/1994 |
| 5175439 | Power supply circuit for motor vehicles A novel vehicle power supply system is suggested which receives its voltage supply from a starter/generator which can be used as a generator in normal operation and as a starter when starting, wherein the starter/generator is connected with a 24 volt ring... | 12/29/1992 |
| 5051603 | Method and apparatus for matching turn-off times of parallel connected semiconductor switching devices A power switching system for controlling the conductivity of a plurality of thyristors of the gate turn-off type (GTOs) which are connected in parallel between two power sources by gradually introducing a time compensation to force the times of turn-off o... | 09/24/1991 |
| 4983856 | Method and system for interconnecting in quadrature two synchronous or asynchronous three-phase networks The present disclosure describes a method and a system for interconnecting a first and a second three-phase alternating electric networks. The system comprises a first transformer having secondary windings for producing a first and a second secondary thre... | 01/08/1991 |
| 4894765 | Bi-directional d.c./d.c. converter compatible with an inverter bridge In a method of and apparatus for connecting a storage battery to an elevator inverter, the storage battery being connected to a d.c. circuit of the elevator inverter power stage, a voltage in the d.c. circuit is higher than the battery voltage. Power flow... | 01/16/1990 |
| 4868410 | System of load flow calculation for electric power system In the load flow calculating method of the present invention, a Jacobian matrix for reactive power with respect to voltage is made to coincide with a part of a Jacobian matrix for effective power with respect to phase by introducing variables of the quoti... | 09/19/1989 |
| 4551632 | System for producing and distributing electrical energy for vehicles particularly aircraft, as well as an electrical power center for such a system In a system including an electrical power center for producing and distributing electrical energy for vehicles, particularly aircraft, primary circuit breakers and contactors are distributed between a D.C. electrical power center, relay boxes, electronic ... | 11/05/1985 |
| 4488198 | Protective circuit for clutchless parallel generating system An electrical distribution system has parallel connected generators powered by variable speed engines. Loads connected with each generator are interconnected through an electrical distribution bus. Constant speed drives have inputs connected with the engi... | 12/11/1984 |
| 4433250 | Power supply control apparatus Apparatus is adapted for connection to an alternating current source and a direct current power supply powered by the source. The supply is enabled when the source is operative and disabled when the source is inoperative. The apparatus utilizes first, sec... | 02/21/1984 |
| 4320306 | Method and apparatus for controlling current or power between interconnected power stations A method and apparatus for controlling a current and/or power between interconnected power stations. A deviation from a base load in an active current or power flowing out of a power station and a deviation from a normal value in the terminal voltage of t... | 03/16/1982 |
| 4238688 | Three-phase uninterruptible power supply maintaining reserve energy sources in idling condition with unbalanced loads A control arrangement for a three-phase, uninterruptible power supply generates timing signals to drive the static switches of inverters located in each phase. This control arrangement precisely controls the phase differences of the inverter signals with ... | 12/09/1980 |
