Temperature-sensitive control circuits

Details Temperature-sensitive control circuits Temperature-sensitive control circuits

1977-10-14

1980-05-20

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307296R, 330256, H03K 100, H03K 1700

Patent

active

042041333

ABSTRACT:
The emitter-to-base potential of a first transistor operated at predetermined current level is scaled up and applied as the emitter-to-base potential of a second transistor. The resulting collector current of the second transistor decreases with increasing temperature and is differentially compared against a current of opposing polarity to obtain an output current which changes polarity at a given temperature.

REFERENCES:
patent: 3393870 (1968-05-01), Jeffrey
patent: 3651346 (1972-03-01), Limberg
patent: 3760200 (1973-09-01), Taniguchi et al.
patent: 4042886 (1977-08-01), Hanna

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