TRIAC/SCR proportional control circuit
A power controller device which uses a voltage-to-frequency converter in conjunction with a zero crossing detector to linearly and proportionally control AC power being supplied to a load. The output of the voltage to frequency converter controls the reset input of a R-S flip flop, while an 0 crossing detector controls the set input. The output of the flip flop triggers a monostable multivibrator controlling the SCR or TRIAC firing circuit connected to the load. Logic gates prevent the direct triggering of the multivibrator in the rare instance where the reset and set inputs of the flip flop are in coincidence. The control circuit can be supplemented with a control loop, providing compensation for line voltage variations.
- Research Organization:
- Knolls Atomic Power Lab., Niskayuna, NY (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC12-76SN00052
- Assignee:
- DOEGC; EDB-00:058110
- Patent Number(s):
- PATENTS-US-A8923629
- Application Number:
- 8-923,629; TRN: AH200022%%207
- OSTI ID:
- 757801
- Resource Relation:
- Patent File Date: 1997 Sep 04; Other Information: PBD: 1 Dec 1997
- Country of Publication:
- United States
- Language:
- English
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