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)
12/1999
12/01/1999CN1237286A Pulse current source for switch network unit
12/01/1999CN1047041C Rectifier bridge apparatus
11/1999
11/30/1999US5995398 Power supply device
11/30/1999US5995395 Control of a composite bridge at zero voltage
11/30/1999US5995393 Latching shutdown and delayed restart of DC power supply in broadband network
11/30/1999US5995387 Switching power-supply unit
11/30/1999US5995385 RCC-type switching power supply
11/30/1999US5995383 Low cost AC-to-DC converter having input current with reduced harmonics
11/30/1999US5994847 Electronic ballast with lamp current valley-fill power factor correction
11/24/1999EP0958650A1 Driving mechanism for industrial installations, in particular for primary industry installations
11/24/1999EP0958648A1 Switched-mode power supply with current and voltage limitation
11/24/1999EP0958647A1 Device for transforming a three-phase voltage system
11/24/1999CN1236501A A switch-mode power supply control circuit
11/23/1999US5991183 Polyphase voltage converter
11/23/1999US5991176 Method for processing PWM waves and devices therefor
11/23/1999US5991174 Snubber circuit for a rectifier, method of operation thereof and power converter employing the same
11/23/1999US5991172 AC/DC flyback converter with improved power factor and reduced switching loss
11/23/1999US5991169 Arc welding power supply
11/23/1999US5990724 Method and a device for detecting and handling short-circuit phenomena for power semiconductor devices of turn-off type connected in series
11/23/1999US5990654 Apparatus for eliminating motor voltage reflections and reducing EMI currents
11/23/1999US5990581 Method and system for allowing a power supply circuit to use a small current specification switch
11/17/1999EP0956742A1 Electronic ballast with lamp current valley-fill power factor correction
11/17/1999EP0907999A4 Power supply for light emitting diode array
11/16/1999US5986909 Multiphase power supply with plural series connected cells and failed cell bypass
11/16/1999US5986906 Converter circuit arrangement
11/16/1999US5986904 Self-regulating lossless snubber circuit
11/16/1999US5986903 Control apparatus for a converter for transmitting electric power between an alternating voltage network and a direct voltage network
11/16/1999US5986902 Integrated protection circuit, method of providing current-limiting and short-circuit protection and converter employing the same
11/16/1999US5986901 Power factor correction circuit for a power supply
11/16/1999US5986900 Ground loop elimination
11/16/1999US5986898 Switched-mode power supply with power factor correction
11/16/1999US5986484 Semiconductor device drive circuit with voltage surge suppression
11/16/1999US5986436 Electric power recovering system
11/16/1999CA2021076C Method and apparatus for achieving current balance in parallel connected switching devices
11/11/1999WO1999057801A1 Inverter circuit with avalanche current prevention
11/11/1999CA2331376A1 Inverter circuit with avalanche current prevention
11/10/1999EP0955719A2 Boost converter having reduced output voltage and method of operation thereof
11/10/1999EP0955718A1 Switched-mode voltage converter
11/10/1999EP0954897A1 A method and device for power conversion
11/10/1999CN1234644A Booster converter with reduced out-put voltage and operation method therefor
11/09/1999US5982652 Method and apparatus for providing uninterruptible power using a power controller and a redundant power controller
11/09/1999US5982651 Half-bridge self-exciting switching power supply with over-voltage cut-off capability
11/09/1999US5982648 Three-phase ac-dc converter
11/09/1999US5982646 Voltage clamp snubbers for three level converter
11/09/1999US5982642 Pulsed power supply of switched-mode power supplies
11/09/1999US5982639 Two switch off-line switching converter
11/09/1999US5982638 Single stage power converter with regenerative snubber and power factor correction
11/09/1999CA2178857C Power converter
11/04/1999WO1999056141A1 A method and a device for functional test of a semiconductor valve
11/04/1999DE19818472A1 Electric component with wound construction for LV reactive current compensation
11/04/1999CA2267723A1 Boost converter having reduced output voltage and method of operation thereof
11/03/1999EP0764360B1 Half-bridge driver circuit
11/03/1999CN1234142A AC/DC converter
11/02/1999US5978446 Arc limiting device using the skin effect in ferro-magnetic materials
11/02/1999US5978244 Programmable logic control system for a HVDC power supply
11/02/1999US5978243 Ac/dc converting circuit
11/02/1999US5978234 Power supply device using a resonance between a leakage component and a resonance capacitor to reduce loss
11/02/1999US5977814 Driving circuit for IGBT
11/02/1999US5977754 Offset resonance zero volt switching boost converter
11/02/1999US5977721 Controlled power-factor-corrected ballast
11/02/1999US5977656 Switching network for circuit with multiple power sources
10/1999
10/28/1999DE19817336A1 Short circuit detector arrangement for static converter bridge
10/28/1999DE19805927A1 Schaltnetzteil Switching power supply
10/27/1999CN1233104A Single-switch triphase power factor correcting method and circuit
10/26/1999US5973948 Universal linear power supply
10/26/1999US5973946 Power-factor improvement converter
10/26/1999US5973944 Inductorless step-up and step-down converter with inrush current limiting
10/26/1999US5973942 Start up circuit for DC powered field instrument
10/26/1999US5973938 Switched-mode power supply
10/26/1999US5973528 Control circuit and method for a temperature sensitive device
10/26/1999US5973489 Expanded input voltage range for switch-mode power supply in broadband network
10/20/1999EP0951133A2 Method and active filter for reducing ripple of a current drawn by a charge from a network
10/20/1999CN1045851C Supply circuit of two-wire wide phase angle light and speed regulating controller
10/19/1999US5969964 Resistor in series with bootstrap diode for monolithic gate driver device
10/19/1999US5969962 Low line harmonic AC to DC power supply
10/19/1999US5969956 Method and a device for communication in a high voltage converter station
10/12/1999US5966298 Electrical device with a constant voltage converter
10/07/1999DE19814059A1 Lastseitige Filteranordnung für eine Stromrichter-Schaltungsanordnung Load-side filter assembly for a power converter circuitry
10/06/1999EP0948121A2 Load side filter arrangement for a power converter circuit
10/06/1999EP0713614B1 Power supply comprising means for improving the power factor
10/06/1999CN1231079A Snubber circuit, voltage converter circuit and method in such a snubber circuit
10/06/1999CN1230820A Gate control circuit for voltage drive switching element
10/05/1999CA2170317C Control process for bidirectional current and inverter
10/05/1999CA2153111C Air conditioning device
09/1999
09/30/1999WO1999049560A1 Power supply
09/30/1999WO1999049559A2 Method and device for suppressing interference in frequency converters
09/30/1999WO1999049558A1 A supply device for power supply to an electronic unit in a semiconductor valve in a shunt-connected thyristor-switched capacitor
09/30/1999DE19813769A1 DC supply circuit for nuclear magnetic resonance (NMR) tomography device
09/30/1999DE19812315A1 Noise suppression circuit for electronic revolution rate regulator
09/29/1999EP0945969A1 Power unit
09/29/1999EP0945968A2 Boost converter having extended holdup time and method of operation thereof
09/29/1999EP0944951A1 Snubber circuit, voltage converter circuit and method in such a snubber circuit
09/29/1999EP0944950A1 A method and an apparatus for filtering an electric current supplied to a motor
09/28/1999US5960207 System and method for reducing power losses by gating an active power factor conversion process
09/28/1999US5959857 Power supply apparatus for producing a constant DC voltage from a range of AC inputs
09/28/1999US5959852 Unity power factor power supply for use with variable frequency power sources
09/28/1999US5959851 Switched-mode power supply control circuit
09/28/1999US5959849 Single-switch AC/DC converter with power factor correction (PFC)
09/28/1999US5959438 Soft-switched boost converter with isolated active snubber
09/25/1999CA2263896A1 Boost converter having extended holdup time and method of operation thereof
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