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"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 7884501 | Method for automatic operating voltage detection A method for automatic operating voltage detection, in which one internal supply voltage (vdd) is selected from at least two different external supply voltages, with a first external voltage supply (VDDA) being applied permanently, is based on the object of reducing... | 02/08/2011 |
| 7825540 | Power conversion device A power conversion device including sub-inverters, each connected in series with respective phase of a three-phase main inverter including a smoothing capacitor, which is fed from a power supply via a converter, as a DC input thereof, and feeds power to a load using... | 11/02/2010 |
| 7605497 | Two-source inverter Systems and methods are disclosed for a two-source inverter. The systems and methods combines operation of a first voltage source powering a conventional single source inverter with second voltage source powering a novel switch configuration to power a load. The swi... | 10/20/2009 |
| 7579713 | Voltage converter for converting a voltage to multiple output voltages and method of operating said voltage converter The invention relates to an voltage converter for converting a voltage to multiple output voltages, comprising a first switching circuit (SO) connected to an inductive energy storage element (L) for allowing and interrupting a current flow through the inductive ener... | 08/25/2009 |
| 7541693 | Power distribution network for computer systems and other low-power applications An apparatus includes a plurality of output filters. Each output filter is to provide a respective output power signal at a respective voltage level. The apparatus also includes a plurality of power multiplexers. Each power multiplexer corresponds to a respective on... | 06/02/2009 |
| 7443055 | Systems and methods for providing redundant voltage regulation Systems and methods for providing redundant voltage regulation are provided. A representative method incorporates: providing a first voltage regulator and a second voltage regulator, the second voltage regulator having output rectifiers; electrically connecting the ... | 10/28/2008 |
| 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 |
| 7368832 | Circuit and fault tolerant assembly including such circuit A circuit is provided that provides for the same power characteristics to an assembly of electrical resistive elements wired in parallel as to the assembly as wired in series. An input power source provides electrical resistive power to a plurality of load elements,... | 05/06/2008 |
| 7362009 | Chain reaction control circuit for parallel power supply A chain reaction control circuit for parallel power supply provides greater power without changing the design of the original power supply structure. It includes a control unit to receive a first power actuation signal output from a power actuation unit, then output... | 04/22/2008 |
| 7342326 | Circuit arrangement for momentarily maintaining an internal operating direct current voltage in the event of an interruption in the vehicle electrical system power supply voltage A circuit arrangement, to which the vehicle electric system supply voltage is applied and which for briefly maintaining at least one internal normal d.c. voltage in the event of failure of the vehicle electric system supply voltage, includes a reserve energy accumul... | 03/11/2008 |
| 7313714 | System and method for managing groups of modular power supplies for powering subcomponents of a computer system A system and method for dynamically managing a plurality of power supplies for a computer system has a plurality of first circuits, each of the first circuits responsive to an electrical condition of each of the plurality of power sources. A second circuit is couple... | 12/25/2007 |
| 7301313 | Multiple voltage regulators for use with a single load Multiple voltage regulators for use with a single load. The present invention allows power to be supplied to an electrical load using multiple voltage regulators based on the operating environment of the load. In one embodiment, a primary voltage regulator that is b... | 11/27/2007 |
| 7295451 | Switching power supply having dual current feedback An arrangement for use in a switching power supply includes a power supply output line, a current sensing circuit, and a feedback circuit. The output line is operably coupled to an output winding of a transformer. The transformer has a first winding operably connect... | 11/13/2007 |
| 7276811 | Submarine power feeding system having submarine feeding cables and power feeding branching devices A submarine power feeding branching device comprises a constant current-constant current converter which isolates an input side for a trunk submarine cable from an output side for a branch submarine cable. The converter receives a first constant current and produces... | 10/02/2007 |
| 7235891 | Power system having generator driven by engine An apparatus for controlling the operation of power conditioners (10) for supplying the generated power to an external power system such as a commercial power system, in which power conditioners (10) are interconnected to an external power system, the ... | 06/26/2007 |
| 7166933 | Submarine power feeding branching device for submarine power feeding system having submarine feeding cables arranged in mesh pattern A submarine power feeding branching device comprises a constant current-constant current converter which isolates an input side for a trunk submarine cable from an output side for a branch submarine cable. The converter receives a first constant current and produces... | 01/23/2007 |
| 7157890 | Using pulse width modulation in the control of load sharing between paralleled power supplies A plurality of power supply modules having their outputs coupled in parallel are controlled for load balancing purposes through a direct current bus having filtered pulse width modulation (PWM) signals representative of the power outputs of each of the plurality of ... | 01/02/2007 |
| 7141894 | Apparatus for providing high quality power The system disclosed herein is primarily utilized in the 23–48 volt DC telco, data center and industrial production industry. It will effectively replace today's requirement of purchasing, installing, maintaining and replacing chemical storage batteries. The solut... | 11/28/2006 |
| 7043648 | Multiprocessor power supply system that operates a portion of available power supplies and selects voltage monitor point according to the number of detected processors An information processing apparatus capable of mounting a plurality of processors, includes a power supply device including a plurality of power supply units and configured to output power to drive the plurality of processors as loads using the power supply units. T... | 05/09/2006 |
| 7038923 | Method of establishing a master & minus; host in modules connecting in parallel This invention relates to a method of establishing a master unit in a multi-unit parallel system. Each module with a respective number is connected through a bus, and has a different host-identifying pulse width Ts and a host-releasing pulse width Tw. According to t... | 05/02/2006 |
| 7019495 | Inter-regulator control of multiple electric power sources The present invention includes a system and method for controlling multiple sources of electric power using inter-regulator control. The regulators in the system may be of a universal type that may operate either as a master regulator or a follower regulator. Determ... | 03/28/2006 |
| 7009363 | Optimized battery life in multiple battery applications Various apparatus and methods of supplying regulated battery power to an electrical device, such as a downhole tool, are provided. In one aspect, a method of providing power to an electrical device is provided that includes providing a plurality of batteries and pro... | 03/07/2006 |
| 7009856 | Vector-controlled dual inverter system and method for induction motor A vector-controlled, dual inverter system for a three-phase induction motor is disclosed. The inverter system comprises a first inverter system which is connected to one end of three phase windings of a stator and performs compensation of a back electromotive force;... | 03/07/2006 |
| 6989612 | Dynamic control of power converter output voltage slew rate A system and method is provided for dynamically controlling output voltage slew rate in a power converter. Preferred embodiments of the present invention operate in accordance with a power converter including at least a slew-rate control lead (a trim lead, a control... | 01/24/2006 |
| 6963146 | Modular power control apparatus A modular power control apparatus for use with a plurality of peripheral devices. A plurality of modules, which connect to the peripheral devices, are supported by a housing. An interface module is supported by the housing to selectively interface with the plurality... | 11/08/2005 |
| 6914348 | Dynamic control of power converter output voltage slew rate A system and method is provided for dynamically controlling output voltage slew rate in a power converter. Preferred embodiments of the present invention operate in accordance with a power converter including at least a slew-rate control lead (a trim lead, a control... | 07/05/2005 |
| 6906932 | Power supply for outputting a steady state voltage according to a load requirement A power supply includes a power supply unit having an input end for receiving an oscillating voltage, and an output end for outputting a steady state voltage from the oscillating voltage according to a feedback signal, and a control circuit having a micro-controller... | 06/14/2005 |
| 6870282 | Method for the transmission of signals in a bus system, superposed on a direct supply voltage Previously in a bus system, voltage signals were transmitted from the central unit to the modules, which could reply thereto by variation of the current input. A disadvantage thereby is the relatively high susceptibility to interference of the current input, which i... | 03/22/2005 |
| 6737763 | Intelligent load sharing with power limiting scheme for multiple power supplies connected to a common load 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 and the... | 05/18/2004 |
| 6614133 | Power system with plural parallel power supplies with at least one power supply in standby mode for energy efficiency In a system having multiple power supplies with outputs connected in parallel, the number of supplies providing current is controlled to improve the overall system efficiency. For example, when the output current of individual power supplies falls below a... | 09/02/2003 |
| 6522030 | Multiple power generator connection method and system A method and system for connecting a plurality of power generators, each having an electrical power converter output and adjustable output voltage magnitude and frequency, with at least one digital communications bus to provide synchronization and load sh... | 02/18/2003 |
| 6368933 | Tap connections for circuits with leakage suppression capability An integrated circuit biases the substrate and well using voltages other than those used for power and ground. Tap cells inside the standard cell circuits are removed. New tap cells used to bias the substrate and well reside outside the standard cell circ... | 04/09/2002 |
| 6329726 | Proportional distribution of power from a plurality of power sources A power distributing mechanism includes a regulating circuit disposed between at least two circuit portions. The regulating circuit includes bifilar-wound windings electrically coupled to the circuit portions. In a first embodiment, the two circuit portio... | 12/11/2001 |
| 6317345 | Power supply distribution system employing non-isolated DC/DC converters In a method and apparatus for partitioning and packaging a power generation and distribution system, a plurality of power supply modules are distributed along the length of the backplane such that backplane voltage drops are minimized and such that power ... | 11/13/2001 |
| 6204571 | Multiple power supply unit with improved overcurrent sensitivity A multiple power supply unit includes two DC stabilized power supplies that provide electrical power in parallel to a load, each power supply providing its own operation indication to the other power supply. Each power supply changes a reference voltage u... | 03/20/2001 |
| 6134122 | Integrated voltage and current mode controller for a power converter and method of operation thereof For use with a power converter having a modulator, a controller and a method of operating the same. In one embodiment, the controller includes: (1) signal processing circuitry that develops a unified control signal based on an output voltage, an output cu... | 10/17/2000 |
| 6134129 | Current sharing signal coupling/decoupling circuit for power converter systems An improved current sharing signal coupling/decoupling circuit for use in each module of a system including a plurality of parallel connected modules, each such circuit providing an interface between a module's "current sharing signal" port and a common c... | 10/17/2000 |
| 6128203 | Switched converter with multiple regulated outputs A multi-output converter having a transformer with several windings, a first winding being connected to a first switching element the duty cycle of which is controlled by a control circuit. A second winding is connected to a rectifying means and to a firs... | 10/03/2000 |
| 5886283 | Desensitized firing circuit A desensitized firing circuit has a pair of diodes, a resistor, and a sevble wire loop used in combination with an existing firing circuit. With the severable wire loop intact, current flow through the resistor is shunted to ground, and the circuit opera... | 03/23/1999 |
| 5834925 | Current sharing power supplies with redundant operation A plurality of power supplies are connected in parallel, each power supply isolated from the others using a non-linear isolation element such as a barrier diode. Feedback is furnished around the non-linear isolation element such that the voltage drop of t... | 11/10/1998 |
