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Class Information
Number: 363/131
Name: Electric power conversion systems > Current conversion > Using semiconductor-type converter > In transistor inverter systems
Description: Subject matter wherein the semiconductor device includes a transistor type element.










Sub-classes under this class:

Class Number Class Name Patents
363/132 Bridge type 1,467
363/133 Double ended (i.e., push-pull) type 186


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number Title Of Patent Date Issued
6018469 Low cost high efficiency power converter Jan. 25, 2000
6018474 Switching device Jan. 25, 2000
6016259 Power supply circuit Jan. 18, 2000
6009005 Power supply device with reference signal generating circuit for power saving mode Dec. 28, 1999
6005780 Single-stage AC/DC conversion with PFC-tapped transformers Dec. 21, 1999
5999417 High efficiency power converter Dec. 7, 1999
5995382 Self-oscillation type switching power supply Nov. 30, 1999
5991167 DC to DC power converter including synchronous output rectifier circuit Nov. 23, 1999
5991170 Equipment and method for transmitting electric power Nov. 23, 1999
5986895 Adaptive pulse width modulated resonant Class-D converter Nov. 16, 1999
5986896 Programmable controller having a system for reducing energy consumption of relay outputs Nov. 16, 1999
5973939 Double forward converter with soft-PWM switching Oct. 26, 1999
5973940 Switched-mode power supply for a load having a low power supply Oct. 26, 1999
5973941 Electricity meter with a switching mode transformer power supply circuit Oct. 26, 1999
5973942 Start up circuit for DC powered field instrument Oct. 26, 1999
5966296 Bipolar-duty cycle controllable DC corona power supply Oct. 12, 1999
5963437 Power circuit Oct. 5, 1999
5956241 Battery cell equalization circuit Sep. 21, 1999
5936852 Switched mode power supply with both main output voltage and auxiliary output voltage feedback Aug. 10, 1999
5923546 Control circuit and method for driving and controlling parasitic vibration of a piezoelectric transformer-inverter Jul. 13, 1999
5917720 Method and circuit for driving a bridge by a PWM procedure Jun. 29, 1999
5914866 Device and method for controlling inverter performing feedback control to suppress periodic component and unsteady component of error Jun. 22, 1999
5914871 Device for multi-stage illuminance control for light source of scanner Jun. 22, 1999
5907479 Integrated filter forward converters May. 25, 1999
5903452 Adaptive slope compensator for current mode power converters May. 11, 1999
5901054 Pulse-width-modulation control circuit May. 4, 1999
5898583 Gate drive latching circuit for an auxiliary resonant commutation circuit Apr. 27, 1999
5892671 Control circuit for a switching transistor using a tapped coil with oppositely wound coil parts Apr. 6, 1999
5880942 Power supply device with low power dissipation Mar. 9, 1999
5877947 Snubber circuit for a rectifier and method of operation thereof Mar. 2, 1999
5877946 Forward converter with an inductor coupled to a transformer winding Mar. 2, 1999
5875107 Inverter apparatus Feb. 23, 1999
5872705 Low loss synchronous rectifier for application to clamped-mode power converters Feb. 16, 1999
5872710 Inverter control device Feb. 16, 1999
5867374 Switch-mode supply with power factor correction Feb. 2, 1999
5862043 Switch coupled active forward converter for obtaining a high power factor at a single power stage Jan. 19, 1999
5859768 Power conversion integrated circuit and method for programming Jan. 12, 1999
5841650 High frequency inverter Nov. 24, 1998
5818702 Converter topologies with multiple windings Oct. 6, 1998
5815380 Switching converter with open-loop primary side regulation Sep. 29, 1998
5796595 Interleaved continuous flyback power converter system Aug. 18, 1998
5786990 Implementation of ripple steering to converter topologies Jul. 28, 1998
5786992 Efficient power conversion Jul. 28, 1998
5781421 High-frequency, high-efficiency converter with recirculating energy control for high-density power conversion Jul. 14, 1998
5781423 Pulse width modulation control system for electric power converter Jul. 14, 1998
5768118 Reciprocating converter Jun. 16, 1998
5757629 Switched-mode power supply with compensation for varying input voltage May. 26, 1998
5757625 Switched mode power supply with transformer and feedback via primary winding May. 26, 1998
5754416 Single soft switching circuit for power supply May. 19, 1998
5751560 Switching power circuit with current resonance for zero current switching May. 12, 1998

1 2 3 4 5 6 7 8 9 10 11 12 13 14










 
 
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