Control circuit for an electrically heated bimetal actuated auto

Details Control circuit for an electrically heated bimetal actuated auto Control circuit for an electrically heated bimetal actuated auto

1984-05-29

1986-05-27

Paschall, M. H.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219207, 219505, 219492, 219202, 123179B, H05B 102

Patent

active

045916993

ABSTRACT:
A control circuit for controlling a bimetal actuated choke valve adapted to be driven by a heater energized by electric power whose duty ratio is changed in response to ambient temperature. The control circuit is integrally formed by a hybrid integrated circuit, wherein the characteristics of the duty ratio with respect to the ambient temperature are adjusted by at least one resistance provided externally of the hybrid integrated circuit.

REFERENCES:
patent: 4119835 (1978-10-01), Coulmance et al.
patent: 4278873 (1981-07-01), Petrides
patent: 4323763 (1982-04-01), Goldsmith
patent: 4345141 (1982-08-01), Little
patent: 4347428 (1982-08-01), Conrad et al.

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