Yuri Khersonsky

US Patent:

RE41040, Dec 15, 2009

Filed:

Apr 25, 2005

Appl. No.:

11/115103

Inventors:

Yuri Khersonsky - Yorba Linda CA, US
Robert H. Lee - Los Altos CA, US

Assignee:

Power Paragon, Inc. - Anaheim CA

International Classification:

H02M 1/12

US Classification:

363 41, 363 71

Abstract:

Apparatus for generating a high time-varying AC voltage using low voltage power semiconductors arranged in series bridge circuits, each powered by an independent DC source. At least one bipolar output pulse width modulation bridge circuit and at least a pair of bipolar output square wave generator bridge circuits have their outputs added together and passed through a low pass filter to form a time-varying, typically sinusoidal, AC output waveform. A first square wave generator has an output with a relative magnitude of 6, a second square wave generator has an output with a relative magnitude of 2 and the pulse width modulator has an output with a relative magnitude of 1. Additional square wave generators of relative magnitude 6 may be added to increase the output voltage.

US Patent:

6556461, Apr 29, 2003

Filed:

Nov 19, 2001

Appl. No.:

09/992047

Inventors:

Yuri Khersonsky - Yorba Linda CA
Robert H. Lee - Los Altos CA

Assignee:

Power Paragon, Inc. - Anaheim CA

International Classification:

H02M 112

US Classification:

363 41, 363 71

Abstract:

Apparatus for generating a high time-varying AC voltage using low voltage power semiconductors arranged in series bridge circuits, each powered by an independent DC source. At least one bipolar output pulse width modulation bridge circuit and at least a pair of bipolar output square wave generator bridge circuits have their outputs added together and passed through a low pass filter to form a time-varying, typically sinusoidal, AC output waveform. A first square wave generator has an output with a relative magnitude of 6, a second square wave generator has an output with a relative magnitude of 2 and the pulse width modulator has an output with a relative magnitude of 1. Additional square wave generators of relative magnitude 6 may be added to increase the output voltage.