Temperature compensated IC voltage reference

Details Temperature compensated IC voltage reference Temperature compensated IC voltage reference

1980-08-12

1982-01-26

Shoop, William M.

Electricity: power supply or regulation systems

External or operator controlled

Using a three or more terminal semiconductive device as the...

323231, 323313, 323907, 307263, 307297, G05F 318, G05F 1613

Patent

active

043130836

ABSTRACT:
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.

REFERENCES:
patent: 3300710 (1967-01-01), Knauss
patent: 3829717 (1974-08-01), Harrison
patent: 3887863 (1975-06-01), Brokaw
patent: 4068134 (1978-01-01), Tobey, Jr. et al.
patent: 4088941 (1978-05-01), Wheatley, Jr.
patent: 4099115 (1978-07-01), Watanabe
patent: 4110677 (1978-08-01), Boronkay et al.
patent: 4138616 (1979-02-01), Turner

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