Static switches firing system

Details Static switches firing system Static switches firing system

1985-09-09

1987-02-17

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Primary circuit control

318810, H02P 540

Patent

active

046442430

ABSTRACT:
In a static DC/AC converter sequentially fired in relation to the frequency of the AC power supply, gating is provided by down counters which are instantly advanced, or delayed, in accordance with a change in the reference frequency, thereby to provide instantaneous firing angle adjustment.

REFERENCES:
patent: 4346434 (1982-08-01), Morinaga
patent: 4427933 (1984-01-01), Wagener
Microprocessor-Based Control of an AC Motor Drive, C. W. Edwards, IEEE-IAS Conference Records, Oct. 1982, pp. 1-5.

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