Circuit safe against overload for varying the amount of power to

Details Circuit safe against overload for varying the amount of power to Circuit safe against overload for varying the amount of power to

1980-05-14

1983-10-04

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

361 27, 361 31, 361 58, 361106, 318349, 318514, 318785, 318788, 318783, 318784, 318473, 318471, 338220, 310 68C, H02H 7085

Patent

active

044082444

ABSTRACT:
A circuit, safe against an overload, for incrementally varying the power to an electric blower motor used for heating, ventilating and conditioning vehicles, having a PTC resistor in series with other series resistors in the circuit.

REFERENCES:
patent: 3418531 (1968-12-01), Strachan
patent: 3697863 (1972-10-01), Kilner
"Electronic Digest", 1963, vol. 63, pp. 132-138, German Literature Ref. by Andrich.

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