Temperature compensated ic voltage reference

Details Temperature compensated ic voltage reference Temperature compensated ic voltage reference

H - Electricity

02

J

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H02J 3/12 (2006.01) G05F 1/44 (2006.01) G05F 1/567 (2006.01) G05F 3/18 (2006.01)

Patent

CA 1141820

935.037 ABSTRACT OF THE DISCLOSURE A temperature-compensated IC voltage reference comprising a Zener diode serving as the principal voltage source, in combination with a compensating voltage source including a transistor providing a forward-biased junction, and control circuitry. The compensating voltage is summed with the Zener voltage to produce a reference voltage. The compensating voltage source includes an adjustment element for trimming the reference output to a specified voltage, and the control circuitry operates with that adjustment element to automatically produce optimum temperature compensation when the output has been adjusted to the specified value.

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