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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
5459651 Inverter device for stable, high power-factor input current supply Oct. 17, 1995
5457621 Switching power supply having voltage blocking clamp Oct. 10, 1995
5453923 AC current detector and power supply circuit Sep. 26, 1995
5448466 Method for limiting the frequency of a voltage-controlled oscillator in a control circuit of a resonant converter switched-mode power supply, and control circuit for a resonant converter switc Sep. 5, 1995
5448469 Switch mode power supply with output feedback isolation Sep. 5, 1995
5440472 Integrated magnetic power converter Aug. 8, 1995
5438502 VSCF system with voltage estimation Aug. 1, 1995
5434768 Fixed frequency converter switching at zero voltage Jul. 18, 1995
5432816 System and method of robust sequence estimation in the presence of channel mismatch conditions Jul. 11, 1995
5430633 Multi-resonant clamped flyback converter Jul. 4, 1995
5418702 Switch mode power supply with BJT/MOSFET cascode circuit May. 23, 1995
5412556 Switched mode power supply circuit including a control circuit having two modes of operation each mode selected in dependence on the power to be supplied at the output May. 2, 1995
5410467 Power converters with improved switching efficiency Apr. 25, 1995
5408404 High frequency interleaved DC-to-AC power converter apparatus Apr. 18, 1995
5404287 Device for regulating the intensity of the electric current in a receiver Apr. 4, 1995
5400236 Inventor-controlled power unit Mar. 21, 1995
5400240 Power converter apparatus Mar. 21, 1995
5398181 Control system and method for a minimizing power loss in transformer Mar. 14, 1995
5396410 Zero current switching resonant converter Mar. 7, 1995
5394321 Quasi square-wave back-EMF permanent magnet AC machines with five or more phases Feb. 28, 1995
5390099 Line-powered, phase-control circuit Feb. 14, 1995
5383106 Regenerative control type switching power source device Jan. 17, 1995
5379206 Low loss snubber circuit with active recovery switch Jan. 3, 1995
5377093 Current sensing circuit of a switching mode power supply Dec. 27, 1994
5365421 Pulse transformer having plural simultaneously operable primary windings and a single secondary winding Nov. 15, 1994
5351175 Inverter power supply for welding Sep. 27, 1994
5349514 Reduced-resonant-current zero-voltage-switched forward converter using saturable inductor Sep. 20, 1994
5341285 Intelligent transformerless system for transferring energy from a power source to an isolated load Aug. 23, 1994
5331533 Zero voltage switching power converters Jul. 19, 1994
5313381 Three-terminal switched mode power supply integrated circuit May. 17, 1994
5313142 Compact fluorescent lamp with improved power factor May. 17, 1994
5309344 Dual active clamp, zero voltage switching power converter May. 3, 1994
5309343 Driver circuit having paralleled transistors and current-variable resistive elements May. 3, 1994
5301085 Control circuit for a semiconductor switch Apr. 5, 1994
5291382 Pulse width modulated DC/DC converter with reduced ripple current coponent stress and zero voltage switching capability Mar. 1, 1994
5291119 Low distortion alternating current output active power factor correction circuit using two bi-directional switching regulations Mar. 1, 1994
5274539 Capacitance-multiplying converters for supplying distributed pulsed loads Dec. 28, 1993
5274208 High frequency heating apparatus Dec. 28, 1993
5265003 Miniaturized switching power supply with programmed level gate drive Nov. 23, 1993
5262931 Power converter Nov. 16, 1993
5245527 Modular ac drive controller Sep. 14, 1993
5239453 DC to DC converter employing a free-running single stage blocking oscillator Aug. 24, 1993
5235502 Zero current switching forward power conversion apparatus and method with controllable energy transfer Aug. 10, 1993
5229928 Converter input/output voltage balancing control Jul. 20, 1993
5222015 Inverter power supply with input power detection means Jun. 22, 1993
5216349 Driving circuit for a switching element including an improved power supply arrangement Jun. 1, 1993
5206800 Zero voltage switching power converter with secondary side regulation Apr. 27, 1993
5200886 Start-up for a switched-mode power supply Apr. 6, 1993
5196995 3-terminal bidirectional switching power supply with AC or DC input and AC or DC output Mar. 23, 1993
5189603 DC to AC electric power converting apparatus Feb. 23, 1993

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










 
 
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