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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
7528588 Method and circuit for limiting output voltage in a switched-mode power supply and a switched-mode power supply May. 5, 2009
7521908 Method and apparatus for reducing audio noise in a switching regulator Apr. 21, 2009
7518885 Method and apparatus for a control circuit with multiple operation modes Apr. 14, 2009
7515443 Inverter circuit Apr. 7, 2009
7508685 Stabilized power supply Mar. 24, 2009
7504811 DC/DC converter Mar. 17, 2009
7495933 Resonance transducer Feb. 24, 2009
7489530 High voltage full bridge circuit and method for operating the same Feb. 10, 2009
7486528 Linear-predict sampling for measuring demagnetized voltage of transformer Feb. 3, 2009
7471534 Inverter type motor drive unit Dec. 30, 2008
7471523 Method and apparatus for detecting demagnetizing time of magnetic device Dec. 30, 2008
7471526 Method and apparatus to reduce PWM voltage distortion in electric drives Dec. 30, 2008
7463500 Monopolar DC to bipolar DC to AC converter Dec. 9, 2008
7459877 Solid state reversing AC motor starter with DC power source Dec. 2, 2008
7460380 Highly efficient switching power converter using a charge pump to power the drive circuit Dec. 2, 2008
7436160 Half bridge adaptive dead time circuit and method Oct. 14, 2008
7414864 Switching power supply apparatus Aug. 19, 2008
7411801 Method and apparatus for controlling voltage linearity of voltage source inverters Aug. 12, 2008
7400122 Method and apparatus for reducing audio noise in a switching regulator Jul. 15, 2008
7397679 Inductive transmission of electric energy Jul. 8, 2008
7375984 Zero voltage zero current switching converter May. 20, 2008
7362600 Method and apparatus for cycle error correction for a power converter device, such as an electronic power inverter Apr. 22, 2008
7359222 Method and apparatus to improve regulation of a power supply Apr. 15, 2008
7355864 Switching regulator and its control method Apr. 8, 2008
7339801 Switching power supply circuit Mar. 4, 2008
7336510 Method and system for increasing load start-up capability of a DC-to-AC converter Feb. 26, 2008
7333353 Isolating type self-oscillating flyback converter with a soft start loop Feb. 19, 2008
7332882 Motor drive device that combined charge controller Feb. 19, 2008
7315462 Stabilized power supply Jan. 1, 2008
7310247 Method for controlling transformer excitation cycles and circuit for controlling the same Dec. 18, 2007
RE39933 Power conversion integrated circuit and method for programming Dec. 4, 2007
7301785 Switching power supply circuit Nov. 27, 2007
7295449 Simple switched-mode power supply with current and voltage limitation Nov. 13, 2007
7289338 Input to output isolated DC-DC converter Oct. 30, 2007
7279811 Arrangement for supplying variable loads Oct. 9, 2007
7277304 Multiple inverter system with single controller and related operating method Oct. 2, 2007
7274578 Converter circuit having class E converter modules Sep. 25, 2007
7272026 Power converter for a hybrid power filter Sep. 18, 2007
7248029 Off-line converter with digital control Jul. 24, 2007
7218910 High impedance circuit May. 15, 2007
7218539 Technique for increasing power capability of a DC-to-AC converter May. 15, 2007
7211991 Method and apparatus for reducing audio noise in a switching regulator May. 1, 2007
7209371 Method and apparatus for extending the operating range of a flyforward converter Apr. 24, 2007
7200017 Controller and driving method for supplying energy to display device circuitry Apr. 3, 2007
7190600 Single output EL driver producing reduced current spikes Mar. 13, 2007
7187568 Power converter having improved terminal structure Mar. 6, 2007
7177168 Power converting apparatus and power generating apparatus Feb. 13, 2007
7173831 Power converter having a primary side switching circuit Feb. 6, 2007
7173830 Device for converting an AC voltage from a main electricity supply to a DC voltage at a predetermined level and waveform Feb. 6, 2007
7141894 Apparatus for providing high quality power Nov. 28, 2006

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










 
 
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