Condition-responsive switching circuit

Details Condition-responsive switching circuit Condition-responsive switching circuit

1984-09-20

1987-02-03

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

307116, 361179, 340693, G08B 2100

Patent

active

046411321

ABSTRACT:
This circuit includes a DC source in series with a load to be energized, the DC source also being coupled to a constant-current circuit coupled to the input of an output-signal-generating means. The latter produces an output signal in response to the detection by an associated sensor of a changing condition monitored by the sensor. When the signal-generating means detects a change, an SCR coupled to the DC source is turned on thereby by-passing all of the DC from said source around said constant current source. Simultaneously, the signal-generating means causes an associated LED to emit a light signal.

REFERENCES:
patent: 3932774 (1976-01-01), Buck
patent: 3932803 (1976-01-01), Buck
patent: 4100479 (1978-07-01), Buck
patent: 4110678 (1978-08-01), Buck
patent: 4135124 (1979-01-01), Buck
patent: 4138709 (1979-02-01), Colnill

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