Patents for H02M 1 - Details of apparatus for conversion (33,954) |
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04/28/1994 | CA2147152A1 Device having a dc/dc voltage converter for switched-mode operation |
04/28/1994 | CA2147147A1 Method of operating a voltage converter, and a voltage converter and its application |
04/28/1994 | CA2126443A1 A boost-converter with low losses |
04/27/1994 | EP0593737A1 Dual snubber circuit |
04/27/1994 | EP0593628A1 Power mosfet driver with cross-conduction current reduction |
04/26/1994 | US5307003 Varying the supply voltage in response to the current supplied to a computer system |
04/21/1994 | DE4234772A1 Verfahren zum Betreiben eines Spannungswandlers sowie Spannungswandler und Anwendung A method of operating a voltage converter, and voltage converter and application |
04/21/1994 | DE4234771C1 Einrichtung mit einem Gleichspannungswandler für den Schaltbetrieb Means including a DC-DC converter for switching operation |
04/20/1994 | EP0593258A2 Power supply |
04/20/1994 | EP0592889A2 Switch-mode voltage converter |
04/20/1994 | EP0592696A1 Snubber circuit for an inverter branch |
04/20/1994 | CN1085696A Switch mode power supply with reduced input current distortion |
04/05/1994 | US5301095 High power factor AC/DC converter |
04/05/1994 | US5301085 Control circuit for a semiconductor switch |
03/31/1994 | DE4232283A1 Low-reactive feedback-type static converter arrangement - comprises circuit arrangement consisting of inductance, electronic switch, and rectifying component |
03/30/1994 | EP0588843A1 Switch mode power supply with reduced input current distortion. |
03/25/1994 | CA2079014A1 Power interface for use in a harsh environment and for generating a power signal |
03/24/1994 | DE4305339A1 Arc welding and cutting current source - of inverter type, connectable to single phase and three-phase networks |
03/23/1994 | EP0588635A1 Gate power supply circuit |
03/23/1994 | EP0588173A2 Switch mode power supply with standby mode operation |
03/23/1994 | EP0588172A2 Switch mode power supply with reduced input current distortion |
03/23/1994 | EP0588168A2 Switch mode power supply with feed-forward pulse limit control |
03/23/1994 | EP0588011A1 Circuit for feeding back commutation energy in an inverter having two or three poles and method for feeding back the commutation energy |
03/23/1994 | CN1084330A Functional thyristor phaseshift trigger |
03/22/1994 | US5297015 Power supply control system |
03/22/1994 | CA1327992C Dc/ac power converting apparatus including dc component remover |
03/17/1994 | WO1994006260A1 Current crossover-controlled blocking oscillator |
03/17/1994 | WO1994006028A1 A method and a device for checking the condition of semiconductor valves |
03/16/1994 | EP0586885A1 DC power-supply unit |
03/10/1994 | DE4328748A1 Rectifier - Has resonant circuit with inductor, capacitor and triacs, with load in parallel with capacitor |
03/09/1994 | EP0585788A1 Switched mode power supply integrated circuit with start-up self-biasing |
03/09/1994 | EP0491689B1 Device and process for optimum operation of a power converter connected to a power supply |
03/08/1994 | US5293111 Method for minimizing the switching loss in a power switch |
03/06/1994 | CA2100823A1 Protective circuit with feedback capability for two-point and three-point inverters, and method of feeding back the protective-circuit energy |
03/03/1994 | WO1994007300A1 Snubber circuit, switching power-supply, and saturable inductor used for them |
03/03/1994 | DE4228640A1 Stromnulldurchgangsgesteuerter Sperrwandler Zero current controlled flyback converter |
03/03/1994 | DE4228480A1 DC supply stage for communications appts. - includes LC filter using triode circuit acting as impedance to reduce energy loss |
03/02/1994 | EP0585077A1 Power supply circuit with power factor correction |
03/02/1994 | EP0584873A1 Delay means for delaying the start of a converter after turn on |
03/02/1994 | EP0584660A2 Method and circuit arrangement for reduction of harmonics |
03/01/1994 | US5291387 Switching voltage regulator with protective device against thermal breakdown |
03/01/1994 | US5291119 Low distortion alternating current output active power factor correction circuit using two bi-directional switching regulations |
02/26/1994 | CA2101144A1 Power supply circuit with power factor correction |
02/24/1994 | DE4227183A1 Electronic circuit to provide a starting voltage for another circuit - uses power supply to charge up capacitor, then thyristor fires to allow second capacitor to charge up |
02/23/1994 | EP0583841A2 Switch mode power supply |
02/22/1994 | US5289364 Power supply for an electronic device |
02/22/1994 | US5289361 Adaptive boost switching preregulator and method |
02/21/1994 | CA2104251A1 Switch mode power supply |
02/16/1994 | EP0582814A2 Dropout recovery circuit |
02/16/1994 | EP0582813A2 Critically continuous boost converter |
02/15/1994 | US5287263 Inrush current control circuit |
02/08/1994 | US5285374 Apparatus for generating digital signal synchronized with phase of power supply |
02/08/1994 | US5285369 Switched mode power supply integrated circuit with start-up self-biasing |
02/02/1994 | EP0580919A1 Frequency modulated switching power supply |
02/02/1994 | CN1081544A Controllable and power-adjustable type silicon control zero-cross trigger |
02/01/1994 | US5283727 Independent control of the AC line current and output DC voltage of a high power factor AC-to-DC converter |
02/01/1994 | US5283726 AC line current controller utilizing line connected inductance and DC voltage component |
01/27/1994 | DE4224037A1 N-lines tuned filter circuit for energy distribution network - has series circuit of capacitor and inductor, and n-1 parallel circuits of capacitor and inductor connected in series |
01/27/1994 | DE4221608C1 DC voltage converter suppressor - has active suppressor filter fitted between supply connections and input connections of converter and incorporates linear regulator transistor |
01/26/1994 | EP0580237A1 Power factor correction circuit |
01/26/1994 | EP0580192A2 A circuit device for preventing saturation of the transformer in a DC/AC converter having a feedback-regulated inverter |
01/26/1994 | EP0579653A1 Start-up circuit for a switching network |
01/25/1994 | US5282126 Start circuit for a switched mode power supply |
01/25/1994 | US5282125 Power generation system with soft-start circuit |
01/25/1994 | US5281862 Power MOSFET driver with cross-conduction current reduction |
01/25/1994 | CA1326507C Transfection high voltage controller |
01/19/1994 | CN2153903Y Current supply inverter optimal pulsewidth modulation signal generator for transistor |
01/13/1994 | DE4321988A1 Circuit for two-point inverter switching pole - has power capacitor coupled to junction points between relief diodes and capacitors of two semiconductor series connections |
01/12/1994 | EP0577704A1 Power supply having high power factor with control that tracks the input alternating supply |
01/12/1994 | CN1080791A Multi-function single-chip computer silicon controlled toggle |
01/11/1994 | US5278748 Voltage-resonant DC-DC converter |
01/06/1994 | WO1994000908A1 Power factor correction circuit for ac to dc power supply |
01/05/1994 | DE4321060A1 AC=DC converter - has first and second switching transistors with circuit detecting their respective switching time points and control drive circuit |
01/05/1994 | CN1023436C Controller for more thyratrons with different trigger angles |
12/29/1993 | EP0575589A1 Controlled power supply |
12/29/1993 | EP0575582A1 Gto module with stacked bypass diode |
12/29/1993 | EP0416050B1 A device with a multi-phase load, a static converter and choke coils |
12/28/1993 | US5274542 Control device of neutral point clamped power inverter apparatus |
12/28/1993 | US5274540 Inverter device for stable, high power-factor input current supply |
12/28/1993 | US5274274 Power controller |
12/23/1993 | WO1993026078A1 High power factor switched dc power supply |
12/23/1993 | DE4219644A1 Load reduction circuit for hf pulse rectifier - uses inductors on primary side for switch-on load reduction of semiconductor switch pairs |
12/23/1993 | DE4217234C1 Voltage limiting circuit for current cut=out electronic extinction device - has parallel circuit across extinction capacitor limiting capacitor voltage using nonlinear resistance and GTO thyristor |
12/22/1993 | EP0575131A1 Control device for thyristor converter |
12/21/1993 | US5272613 Cascaded rectifier and two switched voltage converter circuits with harmonics suppression |
12/16/1993 | DE4219214A1 Attenuation circuit for signal harmonics - uses tuned filter coupled to tap-off of duplex filter inserted between current regulator and AC network |
12/15/1993 | EP0573836A2 Electric power converter |
12/15/1993 | EP0573828A2 Improvement in power supplies |
12/09/1993 | WO1993025952A1 Dimmable high power factor high-efficiency electronic ballast controller integrated circuit with automatic ambient over-temperature shutdown |
12/09/1993 | WO1993024987A1 Dual active clamp power converter |
12/08/1993 | EP0572706A1 Control circuit for a power-FET with a load connected to its source |
12/08/1993 | CN1079343A Digital phase shifter for controlling thyristors |
12/07/1993 | US5268830 Drive circuit for power switches of a zero-voltage switching power converter |
12/01/1993 | CN1079082A Chopping controlled rectification and ac voltageregulation circuit |
11/30/1993 | USRE34462 Start circuit for generation of pulse width modulated switching pulses for switch mode power supplies |
11/30/1993 | US5267135 Power supply apparatus having interlocking operating system |
11/30/1993 | US5267133 Switching power source |
11/30/1993 | US5267132 High power switching power supply with high power factor |
11/25/1993 | WO1993023974A1 Stable power supply with high power factor |
11/25/1993 | WO1993023917A1 Dual snubber circuit |