Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02M - Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; Conversion of dc or ac input power into surge output power; Control or regulation thereof › H02M 1 - Details of apparatus for conversion
Patents for H02M 1 - Details of apparatus for conversion (33,954)
11/1995
11/21/1995US5469044 Transmission line power flow controller with unequal advancement and retardation of transmission angle
11/16/1995WO1995031040A1 Switch with controlled rise and fall characteristics
11/16/1995CA2189771A1 Switch with controlled rise and fall characteristics
11/15/1995EP0682402A1 Output magnitudes rise limiting device for self-commutated constant voltage intermediate circuit converter
11/15/1995EP0682401A1 Limiting device for the output voltage slope of a self-commutated converter
11/15/1995CN1111851A An ac/dc converter
11/08/1995EP0681363A1 Voltage converter
11/08/1995EP0681362A1 Digital current mode PWM control
11/08/1995CN1030235C Controllale power-regulating thyristor zero cross trigger
11/07/1995US5465040 Three phase power factor correction device and method
11/07/1995CA2148044A1 Method and circuitry for controlling start-up characteristics of a magnetic amplifier control circuit
11/02/1995EP0680246A1 Power supply apparatus having high power-factor and low distortion-factor characteristics
11/02/1995EP0680146A2 Power element driving circuit
11/02/1995EP0680135A1 Improved integrated magnetic buck converter
10/1995
10/31/1995US5463542 DC/DC converter and RS-232 interface circuit using the same
10/26/1995WO1995028819A1 Low height ballast for fluorescent lamps
10/26/1995DE4427805C1 Protection for mains converter against dynamic frequency reduction
10/26/1995DE4414194A1 Electronic circuit with rectifier circuit for supplying DC voltage to appliances from AC mains supply
10/25/1995EP0655174A4 Transistor circuit for powering a fluorescent lamp.
10/24/1995US5461556 Power converter
10/24/1995US5461303 Power factor correction precompensation circuit
10/24/1995US5461301 Dual slope soft start for pulse width modulator controllers used in power converters
10/24/1995US5460244 Elevator control apparatus using parallel converters and inverters with means to control circulating current
10/18/1995EP0677925A1 Three-terminal insulated-gate power electronic device with a variable-slope saturated output characteristic depending in a discontinuous way on the output current
10/18/1995EP0677861A2 High-speed switching regulator drive circuit
10/18/1995CN1110438A Transistor parallel circuit
10/17/1995US5459652 Boot strap circuit for power up control of power supplies
10/17/1995US5459651 Inverter device for stable, high power-factor input current supply
10/17/1995US5459392 Unity power factor power supply which includes an electromagnetic interference reduction circuit
10/17/1995CA2033104C Inverter device
10/11/1995EP0676854A2 Efficient power conversion
10/04/1995EP0675588A2 Controlling the input current drawn by a switching power converter
10/04/1995CN1109607A Circuit for estimating a peak or RMS value of a sinusoidal voltage waveform
10/03/1995US5455884 Stepped compound voltage control circuit of battery in combination with field-control DC motor driving circuit
10/03/1995US5455490 Power and signal distribution in lighting systems
09/1995
09/28/1995DE4410069A1 Switching circuit for harmonic-free direct voltage
09/27/1995EP0674380A1 Parallel connection structure for flat type semiconductor switches
09/27/1995EP0502096B1 Apparatus for a balanced three phase ac power supply in a computer having variable dc loads
09/26/1995US5453643 Controllable compound voltage DC/AC transforming circuit
09/26/1995CA2025505C Thyrister converter system with higher harmonics suppression
09/21/1995WO1995025383A1 Process and device for equalising the voltage distribution to gate-controlled, series-connected semiconductors
09/21/1995CA2185559A1 Process and device for equalising the voltage distribution to gate-controlled, series-connected semiconductors
09/20/1995EP0673106A1 A circuit for achieving a higher power factor in a switched mode power supply
09/20/1995CN1108825A Semiconductor stack
09/19/1995US5452196 Protection system for thyristor valve having first and second reverse voltage detection circuits
09/19/1995US5452195 Start-up circuit for a switch mode power supply
09/19/1995US5451858 Automatic equal-phase synchronizer for a varying number of synchronized units
09/14/1995DE19503375A1 Control circuit for two series transistors of clocked inverter
09/13/1995EP0671012A1 A method and a device for checking the condition of semiconductor valves
09/13/1995CN1108442A 电力变换器 Power converter
09/12/1995US5450311 Static energy regulator for lighting networks with control of the quantity of the intensity and/or voltage, harmonic content and reactive energy supplied to the load
09/12/1995US5450308 Gate power supply circuit
09/12/1995US5450307 Switching power source apparatus
09/12/1995US5450029 Circuit for estimating a peak or RMS value of a sinusoidal voltage waveform
09/12/1995US5450000 Using hall device for controlling current in a switchmode circuit
09/08/1995WO1995024099A1 A low noise multi-output and multi-resonant forward converter for television power supplies
09/06/1995EP0647370A4 Low line harmonic ac to dc power supply.
09/05/1995CA2062698C High power-factor converter for motor drives and power supplies
08/1995
08/31/1995DE19506587A1 Suppression of high harmonics in rectified AC
08/30/1995EP0669704A2 Switched-mode power supply for connection to a direct voltage source and for generating at least one regulated d.c. output voltage, and apparatus comprising such a switched-mode power supply
08/30/1995EP0669703A2 AC-DC converter
08/30/1995EP0669702A2 Harmonics active filter for a converter circuit
08/30/1995EP0669701A1 Gate power supply circuit
08/29/1995US5446647 Control apparatus for power converter
08/29/1995US5446366 Boost converter power supply with reduced losses, control circuit and method therefor
08/24/1995DE4405239A1 Protecting switchable semiconductor of oscillation converter
08/23/1995EP0668654A2 A feedback loss protection in a power supply
08/23/1995EP0667992A1 Load current fundamental filter with one cycle response
08/22/1995US5444609 Passive harmonic filter system for variable frequency drives
08/22/1995US5444591 IGBT fault current limiting circuit
08/17/1995WO1995022194A1 High frequency ac/ac converter with power factor correction
08/17/1995WO1995022092A1 Boost converter power supply with reduced losses, control circuit and method therefor
08/16/1995EP0667734A1 Electronic reactor for the supply of discharge lamps with an oscillator circuit to limit the crest factor and to correct the power factor
08/16/1995EP0667666A1 Power supply comprising a ciruit for limiting inrush currents
08/16/1995EP0667054A1 Harmonic controller for an active power line conditioner
08/16/1995EP0667053A1 Active power line conditioner with synchronous transformation control
08/15/1995US5442536 Low-loss power supply device comprising a DC/DC converter
08/15/1995US5442535 Method and apparatus for controlling an electromechanical load by least one pulse switch
08/15/1995CA2142206A1 Current controller using hall device for controlling current in a switchmode circuit
08/12/1995CA2142250A1 Electronic reactor for the supply of discharge lamps with an oscillator circuit to limit the crest factor and to correct the power factor
08/10/1995WO1995021485A1 Power supply for private branch exchange
08/10/1995DE4421806C1 Switched mode power supply with sinewave AC consumption
08/09/1995EP0666637A2 A switch mode power supply
08/09/1995EP0666636A2 Missing cycle recovery scheme
08/09/1995CN1106587A Power network adaptor for adjusting output
08/08/1995US5440475 Electronic Ballast with low harmonic distortion
08/08/1995US5440473 AC-DC converter
08/05/1995CA2140066A1 Method and apparatus to conceal rf interference in am radio reception caused by a switch mode power supply
08/02/1995EP0665633A2 Power conversion
08/02/1995EP0665632A2 Switching power source apparatus
08/02/1995EP0665630A2 Power factor correction precompensation circuit
08/02/1995EP0665629A2 Power control device and image forming apparatus utilizing the same
08/02/1995EP0664936A1 Arrangement with a d.c.-d.c. converter for switching operation.
08/02/1995EP0664935A1 Process for operating a voltage converter, voltage converter and its use.
08/02/1995CN1106175A Power conversion system
08/01/1995US5438501 Turn-off relief network for a direct voltage converter
08/01/1995US5438294 Gate drive circuit
07/1995
07/26/1995EP0664597A2 Device for compensating high harmonics and/or the power factor of a non linear load connected to an alternative power network
07/25/1995US5436820 Power converter with dual PWM control
07/25/1995US5436819 Apparatus for and method of compensating for an output voltage error in an inverter output
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