Control device of inverters

Details Control device of inverters Control device of inverters

1981-02-10

1982-12-14

Shoop, William M.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

318811, H02M 112

Patent

active

043641091

ABSTRACT:
In an inverter control device having a circuit for controlling the inverter in a pulse-width modulating mode, there are provided a circuit for controlling the inverter in an instantaneous mode, a detector for detecting the operating frequency of the inverter, and a mode transfer switch which selectively connects either one of the outputs of the PWM control circuit and the instantaneous control circuit depending on the operating frequency of the inverter detected by the detector.

REFERENCES:
patent: 3766497 (1973-10-01), Opal et al.
patent: 3819992 (1974-06-01), Opal et al.
patent: 3971972 (1976-07-01), Stich
patent: 4047083 (1977-09-01), Plunkett
patent: 4295189 (1981-10-01), Boys

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