Matches 1 - 20 out of 20


Match Document Document Title
US20150180327 PHASE SEQUENCE SWITCHING DEVICE FOR THREE-PHASE POWER SUPPLY  
A phase sequence switching device for a three-phase power supply is disposed in a power feed path from a three-phase power supply to a load and includes a power-supply side relay including two...
US20120194144 BALANCING THREE PHASE POWER SYSTEMS BY SMOOTH PAHSE SHIFTING AND CLUSTERING  
A method of maintaining balance in power systems is provided herein. The method comprises of detecting a need for load switch from a source phase to a target phase; then applying a Direct Current...
US20070152643 Apparatus and method for resistively controlling airflow to circuit packs  
Airflow through a plurality of circuit packs is optimized by resistively limiting airflow to circuit packs determined to experience excess airflow, typically those circuit packs with lower...
US20090134833 PHASE CURRENT SAMPLING AND REGULATING APPARATUS AND METHODS, AND ELECTRIC MOTOR DRIVE SYSTEMS  
In various embodiments, a phase current sampling apparatus (300, 600, FIGS. 3, 6), an electric motor drive system (100, FIG. 1), and a motor vehicle (1200, FIG. 12) include switching circuitry...
US20110133704 METHOD FOR CONTROLLING AN INTERLEAVING MULTIPHASE REGULATOR AND CORRESPONDING SYSTEM  
A method is provided for controlling turn-on of phases of a multiphase regulator. According to the method, there are tested the conditions necessary for the turn-on of a phase to be turned-on...
US20080264923 WELDING SYSTEM AND METHOD WITH IMPROVED WAVEFORM  
Provided is a welding system and method for controlling a welding system with an improved waveform. In accordance with one aspect of the present invention, a welding system waveform is calibrated...
US20100166447 POWER CONTROL FOR A PRINTER FUSER  
A system for delivering desired magnitudes of AC power to a load. A three-cycle power mode includes a 1st and 3rd cycle in which either no AC power, or full power, is delivered to the load, and a...
US20120299560 Balancing Temperatures in A Multi-Phase DC/DC Converter  
In one embodiment, a temperature compensation circuit is used in a peak current control multi-phased DC/DC converter. Each phase has a duty cycle needed to generate a regulated output voltage of...
US20060163945 Portable power and signal distribution system for a controllable system including multiple devices  
A power supply assembly which can drive a number of different devices at different voltages. A rack holds a number of breaker modules, and each breaker module can connect to one or many breakout...
US20090179619 VOLTAGE REGULATOR SYSTEM AND METHOD FOR EFFICIENCY OPTIMIZATION USING DUTY CYCLE MEASUREMENTS  
A method and system control the adding or dropping of phases in a multiphase voltage regulator. The regulator has an efficiency and this efficiency of the regulator is calculated for a given...
US20110169462 Converter Device and Method for Converting Electrical Power  
A converter device for power conversion in e.g. a power plant such as a wind turbine is disclosed. The converter device is configured for converting an input power to an electrical output power....
US20100219799 Toroidal Core Current Transformer with Phase Compensation Circuit  
Disclosed is a toroidal core current transformer comprising a primary conductor which penetrates the toroidal core and a secondary winding that is wound around the toroidal core. A measuring shunt...
US20100039078 LOAD FLUCTUATION CORRECTION CIRCUIT, ELECTRONIC DEVICE, TESTING DEVICE, AND LOAD FLUCTUATION CORRECTION METHOD  
Provided is a load fluctuation compensation circuit for compensating a power source voltage supplied to an operation circuit, the load fluctuation compensation circuit including: a periodic signal...
US20100283437 METHOD AND APPARATUS FOR SUPPRESSING NOISE CAUSED BY PARASITIC INDUCTANCE AND/OR RESISTANCE IN AN ELECTRONIC CIRCUIT OR SYSTEM  
Reducing, suppressing or canceling series parasitic inductance and/or resistive effects that affect the frequency response of components, elements and/or circuits in an electronic circuit or...
US20100283436 METHOD AND APPARATUS FOR SUPPRESSING NOISE CAUSED BY PARASITIC CAPACITANCE AND/OR RESISTANCE IN AN ELECTRONIC CIRCUIT OR SYSTEM  
Reducing, suppressing or canceling parallel parasitic capacitance and/or resistive effects that affect the frequency response of components, elements and/or circuits in an electronic circuit or...
US20150205247 POWER SUPPLY CONTROL APPARATUS, IMAGE PROCESSING APPARATUS, POWER SUPPLY CONTROL METHOD, AND RECORDING MEDIUM STORING A POWER SUPPLY CONTROL PROGRAM  
A novel power supply control device includes an external power supply unit that generates external driving power from external power source, a storing power supplying unit that generates stored...
US20170117800 POINT OF LOAD REGULATOR SYNCHRONIZATION AND PHASE OFFSET  
An electronic system includes a multiple POL regulators that supply a regulated voltage to a component within the electronic system. A phase spreading scheme may be implemented so that the POL...
US20160349692 VOLTAGE ADJUSTMENT SYSTEM, IMAGE FORMING APPARATUS AND VOLTAGE ADJUSTMENT METHOD  
The detection section is configured to detect first and second DC voltages output. The voltage adjustment section is configured to adjust each of first and second setting values to cause a...
US20160301302 VOLTAGE CONVERTER  
A voltage converter is provided. The voltage converter includes a compensation circuit, a first comparator circuit, a first inductor, a first driver circuit, and a phase-lag circuit. The...
US20110091233 APPARATUS AND METHOD OF CONTROLLING POWER SUPPLY TO HEATING ROLLER AND PHASE CONTROL CIRCUIT CORRESPONDING TO THE APPARATUS AND METHOD  
A method and an apparatus to control power supplied to a heating roller and a phase control circuit corresponding to the method or the apparatus. The phase control circuit may include an...

Matches 1 - 20 out of 20