Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components
Reissue Patent
2005-04-25
2009-12-15
Patel, Rajnikant B (Department: 2838)
Electric power conversion systems
Current conversion
With means to introduce or eliminate frequency components
C363S071000
Reissue Patent
active
RE041040
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.
REFERENCES:
patent: 3581212 (1971-05-01), McMurray
patent: RE28986 (1976-09-01), Heinrich et al.
patent: 5625545 (1997-04-01), Hammond
patent: 5734565 (1998-03-01), Mueller et al.
patent: 5751138 (1998-05-01), Venkata et al.
patent: 5933339 (1999-08-01), Duba et al.
patent: 6198178 (2001-03-01), Schienbein et al.
patent: RE37126 (2001-04-01), Peng et al.
Corzine “Use of Multi-Level Inverters to Reduce High-Frequency Effects in Induction Motor Drives” pp. 1-8, No Date.
“Symphony Made Simple” Product Brochure for Multi-Level Inverter, Alstom Power Conversion, Issue 1.01, (2000) pp. 1-12, No Date.
Khersonsky Yuri
Lee Robert H.
Farjami & Farjami LLP
Patel Rajnikant B
Power Paragon Inc.
LandOfFree
Step switched PWM sine generator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Step switched PWM sine generator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Step switched PWM sine generator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4124085