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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
5189599 High voltage regulator for an integrated horizontal sweep system Feb. 23, 1993
5179511 Self-regulating class E resonant power converter maintaining operation in a minimal loss region Jan. 12, 1993
5175675 Switching regulator in which oscillation is maintained below a predetermined frequency Dec. 29, 1992
5173846 Zero voltage switching power converter Dec. 22, 1992
5168436 Uninterruptible power supply Dec. 1, 1992
5164892 Pulse electric power unit Nov. 17, 1992
5159541 Asymmetrical pulse width modulated resonant DC/DC converter Oct. 27, 1992
5151852 Class E power amplifier Sep. 29, 1992
5138546 Sintered transformer core of MnZn-ferrite and a transformer comprising such a core Aug. 11, 1992
5132890 Power supply based on normally parasitic resistance of solid state switch Jul. 21, 1992
5130917 Power inverter snubber circuit Jul. 14, 1992
5126931 Fixed frequency single ended forward converter switching at zero voltage Jun. 30, 1992
5111377 Interconnection for electric power system May. 5, 1992
5107411 Interference free, pulse type transformer Apr. 21, 1992
5105099 Level shift circuit with common mode rejection Apr. 14, 1992
5101336 Switching converter Mar. 31, 1992
5079689 Pulse-type electric supply for a load equipped with means for diverting the electric power liable to be reflected by the load Jan. 7, 1992
5073849 Resonant DC to DC converter switching at zero current Dec. 17, 1991
5065300 Class E fixed frequency converter Nov. 12, 1991
5057990 Bidirectional switching power apparatus with AC or DC output Oct. 15, 1991
5041960 Frequency doubler and/or self-oscillating inverter Aug. 20, 1991
5034871 DC to DC converter with steady control of output DC voltage by monitoring output DC current Jul. 23, 1991
5034876 Real-time evaluation of PWM inverter pattern selection Jul. 23, 1991
5032972 Method and circuit configuration for increasing the efficiency of resonant converter power supply circuits Jul. 16, 1991
5029061 Emergency lighting system Jul. 2, 1991
5012401 Switching power supply with foldback current limiting Apr. 30, 1991
5010223 Output control circuit of a 4-burner electronics induction heating cook system and a control method thereof Apr. 23, 1991
4992702 Inverter capable of controlling operating frequency Feb. 12, 1991
4991075 Low-switching loss DC-DC converter Feb. 5, 1991
4985821 Indirect current sensing of DC to DC converters Jan. 15, 1991
4980810 VHF DC-DC power supply operating at frequencies greater than 50 MHz Dec. 25, 1990
4974142 Bootstrap drive for a switch-mode power converter Nov. 27, 1990
4972309 N-phase sinewave converter Nov. 20, 1990
4959765 DC to DC converter using quasi-resonance Sep. 25, 1990
4956584 Strobe trigger pulse generator Sep. 11, 1990
4949017 Strobe trigger pulse generator Aug. 14, 1990
4945466 Resonant switching converter Jul. 31, 1990
4937726 High forward blocking voltage protection circuit Jun. 26, 1990
4933829 Free running flyback DC power supply with current limit circuit Jun. 12, 1990
4933830 Switching power supply Jun. 12, 1990
4931609 High-frequency heating apparatus having a digital-controlled inverter Jun. 5, 1990
4918569 Regulated forward converter for generating repeating spark discharge pulses Apr. 17, 1990
4896255 Power pack comprising resonant converter Jan. 23, 1990
4891746 Method of optimizing the efficiency of a high frequency zero voltage switching resonant power inverter for extended line and load range Jan. 2, 1990
4882663 MOSFET flyback converter Nov. 21, 1989
4870554 Active snubber forward converter Sep. 26, 1989
4866590 Supply having a load invariant auxiliary power supply supplied from a main transformer and a current suppressing inductor Sep. 12, 1989
4858099 Resonant inverter Aug. 15, 1989
4849868 Pulse width modulated switching power supply Jul. 18, 1989
RE32904 Power supply for gas discharge devices Apr. 11, 1989

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










 
 
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