High voltage differential sensor having a capacitive attenuator

Details High voltage differential sensor having a capacitive attenuator High voltage differential sensor having a capacitive attenuator

1995-05-12

1996-01-16

Sikes, William L.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 67, 327 77, G01R 1900, H03K 512, H03K 5153

Patent

active

054852927

ABSTRACT:
A high-voltage differential sensor includes an attenuator formed of two matched monolithic capacitance divider networks. Each divider network is formed of a series connection of monolithically integrated capacitors, which together generate an attenuated differential signal from a high-voltage differential input signal. The attenuated differential signal from the capacitance divider networks is then amplified and fed to a comparator, which generates a first output level when the high-voltage differential input signal is above a selected level, and generates a second output level when the high-voltage differential input signal is below the selected level. By using monolithically integrated capacitors in the divider networks of the attenuator, a simple, compact, low power, high performance high-voltage differential sensor is obtained.

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patent: 5282159 (1994-01-01), Ueda
Microelectronic Circuits pp. 144-145 A. S. Sedra & K. C. Smith HRW Inc., New York, N.Y. 1987.

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