Miscellaneous active electrical nonlinear devices – circuits – and – External effect – Temperature
Patent
1994-01-21
1994-12-27
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
External effect
Temperature
327512, 327378, 327108, 326 68, 326 32, H03F 130
Patent
active
053768469
ABSTRACT:
A temperature compensation circuit (54 and 56, FIG. 3 ) is disclosed for maintaining the voltage at a first node. The amount of time the voltage at the first node is maintained is dependent upon the temperature of a temperature sensitive element (96). The circuit comprises a bleed-off transistor (86) and at least one temperature sensitive element (97). The first terminal (90) of the bleed-off transistor (86) is coupled to the first node and the second terminal (88) is coupled to a first voltage level. The control electrode (92) of the bleed-off transistor (86) is coupled to the first terminal (94) of the temperature sensitive element (96). The other pole of the element is coupled to a second voltage level. The element is operable to generate a voltage drop across its poles dependent upon its temperature.
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Trainor, Western Electric--Technical Digest No. 2, "Expanded Scale Voltmeter", Apr. 1966, pp. 27-28.
Callahan Timothy P.
Cunningham Terry D.
Donaldson Richard
Hiller William E.
Rutkowski Peter
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