Temperature-compensated, precision frequency-to-voltage converto

Details Temperature-compensated, precision frequency-to-voltage converto Temperature-compensated, precision frequency-to-voltage converto

1996-02-14

1997-04-15

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Converting input frequency to output current or voltage

327100, 327513, 327362, H02M 7537

Patent

active

056213417

ABSTRACT:
A Frequency-to-Voltage Convertor (FVC) circuit is based on a precision one-shot that is compensated in a way such that matching of transistors in the circuit is unimportant. Therefore, temperature spacial gradients are rejected. The necessary saturation voltages for the FVC's npn devices are compensated by modulating the drive level of these devices with temperature.

REFERENCES:
patent: 3614634 (1971-10-01), Plano et al.
patent: 4225796 (1980-09-01), Makino et al.
patent: 4547902 (1985-10-01), Kovitz

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