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Class Information
Number: 363/134
Name: Electric power conversion systems > Current conversion > Using semiconductor-type converter > In transistor inverter systems > Double ended (i.e., push-pull) type > Separately driven
Description: Subject matter in which an independent drive circuit controls both the on and the off state of the transistors.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7586765 |
Switched current power converter with reduced power losses during low load conditions |
Sep. 8, 2009 |
| 7554823 |
Controller IC, DC-AC conversion apparatus, and parallel running system of DC-AC conversion apparatuses |
Jun. 30, 2009 |
| 7480162 |
High efficiency two stage inverter |
Jan. 20, 2009 |
| 7423891 |
Inverter device utilizing three switches controlled in a concurrent manner in a resonant transformer |
Sep. 9, 2008 |
| 7414868 |
Switched current power converter with partial converter decoupling for low load conditions |
Aug. 19, 2008 |
| 7397653 |
Inverter design |
Jul. 8, 2008 |
| 7394671 |
Controller IC, DC-AC conversion apparatus, and parallel running system of DC-AC conversion apparatuses |
Jul. 1, 2008 |
| 7298634 |
Switching power supply circuit |
Nov. 20, 2007 |
| 7254048 |
Power supply capable of AC and DC input utilizing winding of transformer as boost inductor |
Aug. 7, 2007 |
| 7218541 |
High efficiency two stage inverter |
May. 15, 2007 |
| 7200017 |
Controller and driving method for supplying energy to display device circuitry |
Apr. 3, 2007 |
| 7193868 |
Switching power supply circuit |
Mar. 20, 2007 |
| 7193867 |
DC converter |
Mar. 20, 2007 |
| 7167381 |
Digital state controller for a high-voltage generator using the mixed-mode modulation method |
Jan. 23, 2007 |
| 7148659 |
Programmable AC/DC power supply |
Dec. 12, 2006 |
| 7133299 |
Zero voltage switching power conversion circuit |
Nov. 7, 2006 |
| 7116565 |
Over-power protection apparatus for self-excited power converter |
Oct. 3, 2006 |
| 7061777 |
Input stage circuit of three-level DC/DC converter |
Jun. 13, 2006 |
| 7054176 |
Architecture for achieving resonant circuit synchronization of multiple zero voltage switched push-pull DC-AC converters |
May. 30, 2006 |
| 7042740 |
Soft-switching half-bridge inverter power supply system |
May. 9, 2006 |
| 7002396 |
Frequency converter |
Feb. 21, 2006 |
| 6999328 |
Controller circuit supplying energy to a display device |
Feb. 14, 2006 |
| 6980450 |
High power density inverter and components thereof |
Dec. 27, 2005 |
| 6946806 |
Method and apparatus for controlling minimum brightness of a fluorescent lamp |
Sep. 20, 2005 |
| 6946946 |
Toroidal inductive devices and methods of making the same |
Sep. 20, 2005 |
| 6930896 |
Power regeneration circuit and power conversion system |
Aug. 16, 2005 |
| 6778415 |
Controller electrical power circuit supplying energy to a display device |
Aug. 17, 2004 |
| 6714426 |
Multiple-phase, multi-module power supply system for high frequency operation |
Mar. 30, 2004 |
| 6693804 |
Switching power supply circuit |
Feb. 17, 2004 |
| 6687142 |
AC to DC inverter for use with AC synchronous motors |
Feb. 3, 2004 |
| 6654268 |
Method and apparatus for controlling minimum brightness of a fluorescent lamp |
Nov. 25, 2003 |
| 6590791 |
High input voltage, high efficiency, fast transient voltage regulator module (VRM) |
Jul. 8, 2003 |
| 6534949 |
Motor drive converter and method with neutral point drift compensation |
Mar. 18, 2003 |
| 6535402 |
Adaptive compensation of dead time for inverter and converter |
Mar. 18, 2003 |
| 6498735 |
Switching power supply unit |
Dec. 24, 2002 |
| 6469922 |
Method and apparatus for controlling minimum brightness of a flourescent lamp |
Oct. 22, 2002 |
| 6434031 |
Driving a quadrupole mass spectrometer via an isolating stage |
Aug. 13, 2002 |
| 6424546 |
Transformation circuit for universal switched power converter |
Jul. 23, 2002 |
| 6349044 |
Zero voltage zero current three level DC-DC converter |
Feb. 19, 2002 |
| 6347046 |
Current driver circuit with a damping circuit |
Feb. 12, 2002 |
| 6317347 |
Voltage feed push-pull resonant inverter for LCD backlighting |
Nov. 13, 2001 |
| 6307765 |
Method and apparatus for controlling minimum brightness of a fluorescent lamp |
Oct. 23, 2001 |
| 6292377 |
Power supply device |
Sep. 18, 2001 |
| 6275391 |
Compact push-pull converter and crowbar circuit, and control therefor |
Aug. 14, 2001 |
| 6266255 |
Efficient power supply with small transformers |
Jul. 24, 2001 |
| 6236579 |
Power supply apparatus, its control method and image formation apparatus |
May. 22, 2001 |
| 6226196 |
Piezoelectric transformer inverter |
May. 1, 2001 |
| 6205043 |
Power supply with air core transformer and seperated power supplies for high dynamic range |
Mar. 20, 2001 |
| 6198640 |
Three-switch add/subtract DC to DC converter |
Mar. 6, 2001 |
| 6191967 |
Voltage supply device having self-testing circuit |
Feb. 20, 2001 |
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