Matches 1 - 50 out of 286 1 2 3 4 5 6 >
Match Document Document Title
7385309 Innovative architectures for systems for generation and distribution of energy on board motor vehicles  
The system allows the generation and distribution of energy on board a motor vehicle provided with a propulsion unit, a tank for fuel at least one distribution network or line for electric energy,...
7345378 Power supply circuit containing multiple DC—DC converters having programmable output current capabilities  
A power supply circuit contains a plurality of DC-DC converter control loops that provide respectively different control signals. A plurality of output driver stages of given current drive...
7030733 Power supply for phantom-feed LAN connected device using spare-pair powering  
A system for providing power to a local area network LAN connected device via spare wire pairs from a phantom feed LAN, the system comprising a first connector for connecting to the LAN connected...
7002263 Elimination of recirculation current loss in load-shared switching mode power supplies  
In master-slave current-tracking load-share systems using switching power supplies, a method and apparatus for preventing current recirculation at light-load and no-load operational conditions. The...
6975947 Power saving apparatus in an appliance  
Disclosed a system and method of lengthening a life span of a battery power supply in an appliance such as a portable appliance, notebook computer or the like. A power saving method in an appliance...
6792338 System and method for actively limiting the power drawn from a power distribution bus  
A control system ( 10 ) actively limits the power drawn from a main power distribution bus ( 20 ) by one or more electric loads ( 30 ). The system ( 10 ) includes circuitry ( 14 ) for determining a...
6768225 Multiple power sources control system  
A multiple power sources control system has several power input sides can switch a power source to other power sources of power input sides as original power source of one of power input sides has...
6751561 Power saving method and apparatus for a portable appliance  
Disclosed a system and method of lengthening a life span of a battery power supply in an appliance such as a portable appliance, notebook computer or the like. A power saving method in an appliance...
6680547 Power sharing system including rechargeable power source  
A power sharing system is provided for powering a plurality of loads using line voltage and a rechargeable source. Each load can be coupled to either the line voltage or the rechargeable source by...
6646424 Apparatus for converting voltage with regulator  
The present invention provides an apparatus and method for optimizing the efficiency of a switching converter for converting a first voltage to a second voltage. The apparatus includes a regulator,...
6642698 Method and apparatus for distributing power to an integrated circuit  
An apparatus for providing regulated power to a microelectronic device is disclosed. The apparatus includes an array of power regulators that are coupled together and which are configured to...
6618681 Method and apparatus for predicting the available energy of a battery  
A method of predicting by non-invasive testing the available energy of a battery at any state of charge by acquiring data of the parameters of internal resistance (IR), open circuit voltage (OCV)...
6580180 Power supply apparatus for vehicle  
A first battery 12 is for supply of power at a first voltage. A second battery 13 is for supply of power at a second voltage to a load 14. A converter 120 is between the first battery 12 ...
6459171 Method and apparatus for sharing power  
A power sharing apparatus and method. In one embodiment, a method of sharing power includes switchably coupling and decoupling each of a plurality of power sources to deliver at least a portion of...
6445086 Electronic power supply for personal computer and method  
An electronic power supply for use with a personal computer exhibits a construction including an external power section located exterior to a personal computer and including a direct current...
6411061 High performance brush motor driver in conjuction with low cost SR motor driver  
A combined drive circuit for a split brake system of a motor vehicle has a switched reluctance motor and a brush motor. The switched reluctance motor has multiple phase windings. The combined drive...
6407528 Low cost brush motor driver in conjunction with low cost SR motor driver  
A combined drive circuit for a split brake system of a motor vehicle has a switched reluctance motor and a brush motor. The switched reluctance motor has multiple phase windings. The combined drive...
6400106 Device for reducing electromagnetic emissions of a circuit through voltage and current slewing  
An inductive load is managed to reduce unnecessary induced electromagnetic radiation as caused by unwanted voltage and/or current fluctuations. The management is accomplished through combined...
6388408 Motor current sensing in electric power tools  
A device for sensing motor current for over-current protection in an electric power tool. The tool includes an electric motor supplied with electrical power via a live cable and incorporates...
6362540 Expandable hybrid electric generator and method therefor  
An expandable hybrid electric generator ( 20 ) includes a number of power blocks ( 22 ) that may be nearly identical to one another. The power blocks ( 22 ) are controlled by a master controller (...
6340848 On-vehicle distribution box and distribution system  
An on-vehicle distribution box for distributing an electrical power supplied from a power source to a first voltage load operated on a first voltage and to a second voltage load operated on a...
6211579 Multiple output converter having a low power dissipation cross regulation compensation circuit  
A compensation circuit for a DC--DC converter having a low voltage output line and a plurality of high voltage output lines applied to a plurality of loads includes an adjustable impedance source...
6150737 Auxiliary power distribution system  
A power supply is adapted to be powered from an ordinary electric utility power line, or alternately from a standby storage battery, and is operable to provide a power-line-isolated output of 120...
6058353 System and method for providing backup protection for circuit breaker failure  
The present invention provides backup protection for circuit breaker failure by providing a programmable controller coupled to detect the failure of a circuit breaker to open on command and...
5982156 Feed-forward control of aircraft bus dc boost converter  
An open loop control arrangement for an electrical energy flow-controlling circuit coupling the varying terminal voltage of an energy storing capacitor to a fixed voltage direct current aircraft...
5952817 Apparatus and method using waveform shaping for reducing high frequency noise from switching inductive loads  
A low-noise switching regulator and a method for driving an inductive load, employing current slew control and voltage slew control, is provided. Open and closed loop embodiments, as well as first...
5952733 Power distribution system for electronic devices  
A power distribution system in which a plurality of power supplies generate power of one or more regulated voltages, each voltage being received by regulator circuit that compares the regulated...
5867040 Integrated circuit with stacked sub-circuits between Vcc and ground so as to conserve power and reduce the voltage across any one transistor  
The semiconductor integrated circuit device of the present invention includes a plurality of integrated circuits. The scheduling circuit selects an arbitrary number of integrated circuit from the...
5864225 Dual adjustable voltage regulators  
A dual adjustable voltage regulator combining a DC--DC switching regulator with a linear regulator implemented on a single chip is disclosed. The invention provides switching circuitry that can...
5814977 Power supply for compensating a failed voltage  
A power supply capable of compensating a failed voltage occurred therein includes an exclusive OR gate for performing an exclusive OR operation on a first and a second voltages to produce a failure...
5659206 Electrical circuit system including voltage detector to selectively halt operation of an electrical circuit  
An electrical circuit has a power source line from a battery. The power source line is divided into a primary side and a secondary side by a device, such as, for example, a diode. A high current...
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...
5594285 Power distribution center  
An electric power distribution center for use on aircraft comprises a space frame having a first surface defining a plurality of sockets, and a second, generally parallel, surface defining a...
5410186 Programmable digital to analog converter  
By providing data to a selection switch via a multiplexor so it can be programmed to supply either a current programmably controlled by a shift register or a current fixed by a fused resistor....
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,...
5087912 Universal pressure measurement interface  
A universal pressure measurement interface ("UPMI") according to the invention enables interfacing of a multiplicity of pressure transmitters to a data acquisition system. The UPMI provides the...
5038265 Power supply with multiple outputs and load balancing  
A power supply with multiple outputs including at least two power converters, each with multiple outputs, a first output of a first power converter being connected in parallel with a first output...
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...
4835408 Power conversion circuit  
A multi-phase switched reluctance motor is driven from a tow-point d.v. supply (11) in which capacitors (12) and (13) are provided across the supply with their common point (14) constituting a...
4692591 Humidifier controller having multiple-phase electrode current sensor  
A controller for controlling an electrode boiler steam humidifier, of the type operable from a source of polyphase alternating current, is provided. A plurality of current loop transformers,...
4652769 Module power supply  
A multisource power supply for supplying a plurality of various power levels from a common AC source, including a plurality of switchable power source modules, a power line conditioner PLC...
4588900 Inverter control system  
An inverter control system for selectively operating on one of an inverter and backup power source to supply a load current comprises a PLL circuit which includes an integrating amplifier and is...
4558230 High integrity dual input power supply  
A high integrity multiple output power conditioner operating from redundant dc sources utilizes circuits to combine the sources to share a load and provide source isolation in event of component...
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...
4435634 Thermal printer edge compensation  
A current-drive circuit (FIG. 1) is provided to drive each of forty electrodes 41. When selected, the circuit forces line 27 to a level of drive voltage Vdr minus a current-level reference voltage...
4434356 Regulated current source for thermal printhead  
A current-drive circuit (FIG. 1) is provided to drive each of forty electrodes 41. Voltage at the electrodes 41 is monitored on line 49 as a control-input to a voltage-regulator circuit (FIG. 2),...
4417151 Universal input-output device  
A universal input-output apparatus has: a controllable source of electrical energy including at least one drive source having an output terminal and a return terminal; an electrical energy...
4412136 Load control for energy converters  
A load control for a system comprised of a plurality of energy converters wherein the energy output of all converters is adjusted in parallel to maintain the total rate of energy output from the...
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...
4318007 Circuit arrangement for controlling the energization of a load from a plurality of current sources  
A load, such as a logic network of the TTL type, is connected in parallel across a plurality of direct-current sources designed to maintain a substantially constant operating voltage. Each source...
Matches 1 - 50 out of 286 1 2 3 4 5 6 >