PWM inverter controller

Details PWM inverter controller PWM inverter controller

1988-02-29

1989-01-31

Wong, Peter S.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 37, 363 97, 318811, H02M 112

Patent

active

048020770

ABSTRACT:
A PWM inverter provided with a sinusoidal waveform generator circuit which produces modulated waves to switch the asynchronous operation into the synchronous operation when the output of a frequency commander commands a frequency greater than a predetermined value and when the sinusoidal waveform generator produces an output of a phase that is zero.

REFERENCES:
patent: 4318167 (1982-03-01), ngquist
patent: 4615000 (1986-09-01), Fujii et al.
patent: 4740738 (1988-04-01), El-Antably et al.

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