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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
5748464 Apparatus comprising inductive and/or power transfer and/or voltage multiplication components May. 5, 1998
5748461 SMPS with low load switching frequency stabilization May. 5, 1998
5748457 Family of zero voltage switching DC to DC converters May. 5, 1998
5745353 Snubber circuit that suppresses surge and rush current flowing to a switching element of a self excitation-type flyback power supply Apr. 28, 1998
5745352 DC-to-DC converter functioning in a pulse-skipping mode with low power consumption and PWM inhibit Apr. 28, 1998
5745351 DC-to-DC bidirectional voltage converters and current sensor Apr. 28, 1998
5739679 Cold cathode tube lighting device using piezoelectric transformer Apr. 14, 1998
5724236 Power converter transformer having an auxilliary winding and electrostatic shield to suppress noise Mar. 3, 1998
5712780 Unity power factor converter for high quality power supply with magnetically coupled compensation Jan. 27, 1998
5708572 Switched-mode power supply Jan. 13, 1998
5706182 Converter topologies with multiple windings Jan. 6, 1998
5706183 Inverter power supply with single discharge path Jan. 6, 1998
5703764 Switched-mode power supply having standby operation Dec. 30, 1997
5699237 Self-oscillating switching power supply with output voltage regulated from the primary side Dec. 16, 1997
5694303 Semi-regulated power supply using forward converter leakage energy Dec. 2, 1997
5675484 Wide input voltage range power supply with auto-transformers and piezoelectric transformer Oct. 7, 1997
5668715 Multiple output, zero voltage switching, series resonant VHF inverter Sep. 16, 1997
5666279 Voltage resonance inverter circuit for dimable cold cathode tubes Sep. 9, 1997
5663874 Multiple output flyback DC-to-DC converter with synchronous rectification and constant on-time current mode control Sep. 2, 1997
5659461 Switching power supply using printed coil type transformer Aug. 19, 1997
5648895 Flyback and charging circuitry for an uninterruptible power supply system Jul. 15, 1997
5644479 Switching power supply device Jul. 1, 1997
5640318 Forward converter for off-line applications Jun. 17, 1997
5638261 Interlock switching system and method Jun. 10, 1997
5621629 Switching power supply for use in an electronic energy meter having a wide range of input voltages Apr. 15, 1997
5619403 Multi-output power supply apparatus Apr. 8, 1997
5619402 Higher-efficiency cold-cathode fluorescent lamp power supply Apr. 8, 1997
5610804 Power supply with dual energy transfer circuits for power factor correction Mar. 11, 1997
5608613 Flyback converter Mar. 4, 1997
5598327 Planar transformer assembly including non-overlapping primary and secondary windings surrounding a common magnetic flux path area Jan. 28, 1997
5598324 Resonance power circuit with clamping circuit Jan. 28, 1997
5594629 High-frequency switching circuits operable in a natural zero-voltage switching mode Jan. 14, 1997
5592074 Battery power supply system Jan. 7, 1997
5581453 Power supply with switched starting circuit Dec. 3, 1996
5581451 Circuit for improving the power efficiency of an AC/DC converter Dec. 3, 1996
5570278 Clamped continuous flyback power converter Oct. 29, 1996
5563777 Inverter AC power supply Oct. 8, 1996
5559478 Highly efficient, complementary, resonant pulse generation Sep. 24, 1996
5541828 Multiple output converter with continuous power transfer to an output and with multiple output regulation Jul. 30, 1996
5530638 Multi-resonant electronic power converter with a wide dynamic range Jun. 25, 1996
5528481 Low noise multi-output and multi-resonant flyback converter for television power supplies Jun. 18, 1996
5521807 DC-To-DC converter with secondary flyback core reset May. 28, 1996
5519598 Load driving circuit May. 21, 1996
5499184 Power switch circuitry for electrically isolating the power switch from a power supply Mar. 12, 1996
5499177 Inverter device with a circuit for generating pulse width modulation signals Mar. 12, 1996
5490052 Switching power supply Feb. 6, 1996
5488551 Pulse width modulated power supply which avoids excessive on-time of switch during start-up Jan. 30, 1996
5479337 Very low power loss amplifier for analog signals utilizing constant-frequency zero-voltage-switching multi-resonant converter Dec. 26, 1995
5474750 Resonant power supply circuit for ozone generators Dec. 12, 1995
5473530 Four-quadrant pulse width modulated DC/AC converter Dec. 5, 1995

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










 
 
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