Micropower delay circuit

Details Micropower delay circuit Micropower delay circuit

1998-04-28

2000-12-19

Lam, Tuan T.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Having specific delay in producing output waveform

327276, 327281, H03K 513

Patent

active

061631965

ABSTRACT:
To generate a signal delay, a current source, a reference voltage generator and a comparator are turned on. Once turned on, the current source raises the voltage across an initially discharged capacitor to a minimum required threshold. The comparator then compares the capacitor voltage to the reference voltage thereby to generate the delay signal. Thereafter, the current source, the reference voltage generator and substantial blocks of circuitry in the comparator are switched off to reduce quiescent power consumption.

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A. Dabrowski et al., Electronics Letters, Offset-Compensated Switched-Capacitor Delay Circuit That is Insensitive to Stray Capacitance and to Capacitor Mismatch, May 11, 1989, vol. 25, No. 10, pp. 623-625.
G. Simon, Periodica Polytechnica, A Stray-Insensitve Switched-Capacitor Delay Circuit, 1986, vol. 30, No. 2-3, pp. 87-91.
J. Beeley, New Electronics, Power-Up Delay Circuit, Jun. 11, 1985, vol. 18, No. 12, p. 29.

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