Function generation circuit

Details Function generation circuit Function generation circuit

2007-05-31

2009-12-15

Chang, Joseph (Department: 2817)

Oscillators

Frequency stabilization

Temperature or current responsive means in circuit

C331S066000, C331S1160FE, C331S158000

Reexamination Certificate

active

07633350

ABSTRACT:
A first order function generation circuit receives a signal from a temperature sensor circuit, and generates a first order function control signal V1that is affected by the ambient temperature. A fourth order and fifth order approximation function generation circuit receives signals from the temperature sensor circuit and from the third order approximation function generation circuit, and generates a fourth and fifth order approximation function control signal V45that is affected by the ambient temperature. A peak change point adjustment circuit outputs a signal to adjust the value of a peak change point temperature Ti for the third order approximation function generation circuit, the first order generation function circuit and the fourth order and fifth order approximation function generation circuit. A temperature compensation circuit adds together control signals V0, V1, V3and V5, and outputs the resultant signal Vc.

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