Electronic delay control circuit having pulse width maintenance

Details Electronic delay control circuit having pulse width maintenance Electronic delay control circuit having pulse width maintenance

1988-06-20

1989-08-29

Hudspeth, David

Electrical transmission or interconnection systems

With nonswitching means responsive to external nonelectrical...

Temperature responsive

307360, 307263, 307265, 307603, H03K 1728

Patent

active

048620203

ABSTRACT:
An electronic delay control circuit provides small, constantly variable delays to an input pulse signal without altering the pulse width of the input signal. The input pulse signal together with a first reference signal are input to three comparators in parallel. The output of one comparator is a pulse signal corresponding to the input pulse signal, and the outputs of the other two comparators are tied together and input to a pulse shaping network to produce delay current pulses for the leading and trailing edges of the input pulse signal. The delay current pulses are added to the output pulse signal to produce a delayed output pulse signal. The delay current pulses are a function of the amount of a constant current steered between the two comparators as determined by a delay control signal.

REFERENCES:
patent: 3906247 (1975-09-01), Heffner
patent: 3952213 (1976-04-01), Fukaya
patent: 4567378 (1986-01-01), Raver
patent: 4645958 (1987-02-01), Suzuki et al.
patent: 4675546 (1987-06-01), Shaw
patent: 4691120 (1987-09-01), Kondo
patent: 4797586 (1989-01-01), Traa
patent: 4801827 (1989-01-01), Metz

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