DC content control for an inverter

Details DC content control for an inverter DC content control for an inverter

1994-08-11

1997-02-04

Nguyen, Matthew V.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

H02M 112

Patent

active

056005482

ABSTRACT:
A control for an inverter having a switch which is operated in accordance with a PWM waveform having spaced rising and falling edges includes circuitry which detects the magnitude and polarity of a DC component in the AC output power produced by the inverter and an adder/subtractor which adjusts at least one of a rising and falling edge of the waveform to reduce the magnitude of the DC component.

REFERENCES:
patent: 4099109 (1978-07-01), Abbondanti
patent: 4354223 (1982-10-01), Turnbull
patent: 4513362 (1985-04-01), Aizawa
patent: 4633382 (1986-12-01), Upadhyay et al.
patent: 4654773 (1987-03-01), Ito et al.
patent: 4727468 (1988-02-01), Maekawa
patent: 4772996 (1988-09-01), Hanei et al.
patent: 4807103 (1989-01-01), Uesugi
patent: 4875149 (1989-10-01), Rozman et al.
patent: 4882120 (1989-11-01), Roe et al.
patent: 4954726 (1990-09-01), Lipman et al.
patent: 5283726 (1994-02-01), Wilkerson
patent: 5450306 (1995-09-01), Garces et al.
An article entitled "A Digital Modulator Circuit for PWM Inverters" written by A. Abbondanti, Industry Application & Society IEE-IAS 1978, pp. 493-501 .

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