Electrical transmission or interconnection systems inventions 03/08

20080073976 - Increasing the availability and redundancy of analog current outputs: There is described a method for increasing an availability and a redundancy of an analog current output as well as an analog current output with increased availability and redundancy. To improve the availability and also the redundancy behavior of an analog current output a first set of current sources is... Agent: Siemens Corporation Intellectual Property Department

20080073978 - Parallel connection of inverters: Method for synchronizing inverter units (INU11, INU12) that are connected in parallel and supply a motor, and a parallel connection arrangement, in which motor is either one winding, which is supplied by inverter units connected in parallel, or a plurality of parallel windings, in which each winding is supplied by... Agent: Birch Stewart Kolasch & Birch

20080073974 - Method and circuit for cross regulation in a power converter: A power equalization circuit in a transformer-based device having a plurality of isolated voltage outputs is provided. The circuit comprises: a threshold detection circuit configured to receive an error signal derived from a selected voltage at one of the isolated voltage outputs, and to determine whether the selected voltage is... Agent: Texas Instruments Incorporated

20080073977 - Power over ethernet battery backup: An apparatus, system, and method for providing DC battery backup power to Power over Ethernet, (PoE) Mid Span or End Point Power Sourcing Equipment, (PSE), such that in the event of the loss of utility power the PSE device is able to continue to provide power for some time while... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080067871 - Method of powering up a plurality of loads in sequence: Power distribution systems that have a limited peak power capability or a high source impedance, such as site supply generators, are often susceptible to abnormal operation in response to the current drawn at power up from the loads connected to the power distribution system. The present invention provides a lighting... Agent: Woodcock Washburn LLP

20080067872 - Apparatus and method for employing a dc source with an uninterruptible power supply: At least one aspect is directed to an uninterruptible power supply including an I/O and an output in electrical communication with the I/O. The UPS also includes electronic circuitry which is adapted to, in a first mode of operation, receive power from the I/O and convert the AC power to... Agent: Lowrie, Lando & Anastasi, LLP

20080067873 - Multiplexed dc voltage regulation output circuit having control circuit for stabilizing output voltages: An exemplary multiplexed DC voltage regulation output circuit (2) comprises a first output circuit, a second output circuit, a transformer (21), a power control chip (22), a feedback circuit (20), and a control circuit (26). The first output circuit is configured for outputting low voltage. The second output circuit is... Agent: Wei Te Chung Foxconn International, Inc.

20080067868 - Bpl low-voltage coupler: Method and system for transmitting data using power lines are disclosed. The method includes tying low voltage lines for the transmission of BPL signals but maintaining isolation of those voltage circuits in accordance with normal power distribution system practices. The system includes a plurality of power transformers, one or more... Agent: Baker Botts, LLP

20080067869 - Power supply control for power generator: A system (100) for connecting a fuel cell stack to an A.C. grid to provide power thereto is disclosed in which a voltage regulated D.C. bus (110) is provided to be coupled to the fuel cell stack, a bidirectional inverter (120) is coupled to the D.C. bus (110), and is... Agent: Miles & Stockbridge PC

20080067870 - Drive control circuit and projection apparatus: A drive control circuit (100) performs drive control of a plurality of loads (111, 112) having different operating characteristics. The drive control circuit includes a plurality of connectors (106, 107) for connecting with the plurality of loads, a control portion (101) that supplies drive control signals to the plurality of... Agent: Morgan Lewis & Bockius LLP

20080067874 - Method and apparatus for wireless power transmission: Embodiments of the invention relate to a method and system for transferring power wirelessly to electronic devices. The system can utilize magnetic coupling between two coils at close proximity to transfer sufficient power to charge an electronic device. Embodiments of the invention pertain to an array of spiral coils that... Agent: Saliwanchik Lloyd & Saliwanchik A Professional Association

20080067875 - Tunable electrical transient generator for electromagnetic pulser: A system for generating a high voltage energy pulse comprises a capacitive energy storage arrangement that is coupled to a direct current (DC) power supply. The capacitive energy storage arrangement stores energy from the power supply. The system also includes a pulse forming network for forming frequency contents of a... Agent: Fitch Even Tabin And Flannery

20080067876 - Safety switching apparatus for safe disconnection of an electrical load: A safety switching apparatus for safe disconnection of an electrical load in an automated installation has at least one input for connecting a signaling device. The safety switching apparatus has an evaluation and control unit and at least one switching element controlled by the evaluation and control unit in order... Agent: Harness, Dickey & Pierce, P.L.C

20080067877 - Safety switching apparatus for safe disconnection of an electrical load: A safety switching apparatus for safe disconnection of an electrical load has at least one input for connecting a signaling device. The safety switching apparatus further has an evaluation and control unit and at least one switching element which can be controlled by the evaluation and control unit in order... Agent: Harness, Dickey & Pierce, P.L.C

20080061628 - Method and apparatus for providing uninterruptible power: At least one aspect is directed to an uninterruptible power supply that includes a first input having an input line connection and an input neutral connection to receive a first input voltage from a first voltage source, a second input to receive a second input voltage from a second voltage... Agent: Lowrie, Lando & Anastasi, LLP

20080061629 - Method of providing generator set standby power: A method is provided for connecting a 110 V genset to a transfer switch feeding a 220 V service entrance such that all 220 V loads are automatically blocked out and all 110 V circuits are accessed. The method includes wiring of the genset to the transfer switch such that... Agent: Hamre, Schumann, Mueller & Larson, P.C.

20080061630 - Device for distributing power between cathodes of a multipolar electrode, in particular of an implant: A device (ES) for distributing power between n cathodes (Ki) of at least one multipolar stimulating electrode (EM) comprises at least one anode (A), wherein n is equal to or greater than two. Said device (ES) comprises a reconfigurable current mirror (MC) which is provided with n outputs (K′i) connectable... Agent: Foley And Lardner LLP Suite 500

20080061631 - Galvanic isolator: A galvanic isolator having a split circuit element, a polymeric substrate, a transmitter and receiver is disclosed. The split circuit element has first and second portions, the first portion being disposed on a first surface of the substrate and the second portion being disposed a second surface of the substrate.... Agent: Kathy Manke Avago Technologies Limited

20080061632 - Switching apparatus and method for varying an impedance of a phase line of a segment of an electrical power line: The switching apparatus and the method are for varying the impedance of a phase line of a segment of an electrical power line. The phase line includes n conductors electrically insulated from each other and short-circuited together at two ends of the segment. The apparatus comprises at least one first... Agent: Buchanan, Ingersoll & Rooney PC

20080061634 - Power-supply control device, interlock device, and electric apparatus: A power-supply control unit is connected in series on a power line between a power supply unit and an operating unit, and controls turning on/off of the power supply from the power supply unit to the operating unit. A resistor having a predetermined resistance is connected in series with the... Agent: Harness, Dickey & Pierce, P.L.C

20080061633 - Wall-mountable timer for an electrical load: A wall-mountable electrical timer for controlling the delivery of power from an AC power source to an electrical load, such as a lamp or a fan motor, includes: a timer adjustment actuator for selecting a predetermined time period of operation for the load; a toggle actuator for starting the timer,... Agent: Lutron Electronics Co., Inc. Mark E. Rose

20080054719 - Power supply device and high-frequency circuit system: The present invention includes: a transformer; a primary source for supplying an alternating voltage of at least two frequencies to a primary winding of the transformer; and a filter circuit connected to a secondary winding of the transformer and having an attenuation that varies according to the frequency of the... Agent: Sughrue Mion, PLLC

20080054721 - Detector based combination regulator: Methods and apparatus provide multiple input voltage regulation in which one regulator is selected for operation based on input power conditions. In one example, a dual input voltage regulator system in a combination smart card selects between contact and contactless (e.g., RF) operation based on which power source provides the... Agent: Fish & Richardson P.C.

20080054720 - Method and apparatus for distributing power to a load in a powered device: A powered device, such as an IP telephone, includes power converter electronics that allows the powered device to couple to multiple power sources and receive a relatively large amount of power (e.g., 15 W or greater) from any single power source or from any combination of the power sources. For... Agent: Bainwood Huang & Associates LLC

20080054723 - Embedded battery control circuit and driving method thereof: An embedded battery control circuit and a driving method thereof are provided. The embedded battery control circuit includes a main power supply line for supplying power to a terminal set, an embedded battery installed in the terminal set, for supplying drive power to the terminal set by selectively connecting to... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20080054724 - Method and system for improved power distribution in a semiconductor device through use of multiple power supplies: Systems, methods and apparatuses which may be capable of achieving better voltage distribution within a voltage domain are disclosed. Embodiments of the present invention may provide a power distribution network capable of achieving a flatter voltage distribution throughout a voltage domain to which the power distribution network is coupled. More... Agent: SprinkleIPLaw Group

20080054725 - Power supply apparatus: 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 controller which is... Agent: Stein, Mcewen & Bui, LLP

20080054726 - Fault-tolerant circuit device in fuel cell ac inverter: A fault-tolerant device is kept functioning in an alternating-current inverter for fuel cell even if an inverter unit in the device is malfunctioned. The malfunctioned inverter unit is rep laced with a backup inverter unit to keep the device functioning.... Agent: Troxell Law Office PLLC

20080054722 - Method and apparatus for transfer of a critical load from one source to a back up source using magnetically latched relays: An automatic transfer switch includes first and second magnetically latched relays that respectively connect first and second voltage sources to a critical load. The first and second relays are magnetically latched in their respective opened or closed positions by a permanent magnet so that no holding current is supplied to... Agent: Fay Sharpe LLP

20080054727 - Solid state pressure switch: A pressure switch employs a Wheatstone bridge incorporating piezoresistive elements. The output of the bridge is monitored by a control circuit which produces a first control signal when a high pressure is achieved and produces a second control signal when a low pressure is achieved. The output of the control... Agent: HowardIPLaw Group

20080054728 - Systems and methods for providing electrical power from an alternating current power source: In general, the present disclosure pertains to systems and methods for providing electrical power from an alternating current (AC) power source to direct current (DC) components. A power supply system in accordance with one exemplary embodiment of the present disclosure has a power supply element and a load controller, and... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20080054729 - Rf powered specialty lighting, motion, sound: Disclosed is a system for wirelessly powering an item. A source is configured to send wireless power. A target is configured to receive the wireless power and convert the wireless power to a useable power. A component is connected to and configured to receive the useable power from the target.... Agent: Ansel M. Schwartz Attorney At Law

20080054730 - System interface and installation with the system interface: It is normal practice in automation to network individual components of an installation via bus lines, with this network carrying out a multiplicity of communication and supply tasks during operation. In at least one embodiment, a system interface, as well as an installation which uses this interface, are disclosed with... Agent: Harness, Dickey & Pierce, P.L.C