Adjustable delay circuit

Details Adjustable delay circuit Adjustable delay circuit

1987-11-25

1989-01-03

Miller, Stanley D.

Electrical transmission or interconnection systems

With nonswitching means responsive to external nonelectrical...

Temperature responsive

307608, 328 55, H03K 1728, H03K 513

Patent

active

047959231

ABSTRACT:
A delay element for producing an output signal in response to a change in state of an input signal includes variable gain first and second amplifiers and a delay buffer having a fixed delay. The input signal is applied as input to the first amplifier and the delay buffer while the output of the delay buffer is applied as input to the second amplifier. The outputs of the first and second amplifiers are summed to provide the output signal. When the gain of the first amplifier is high and the gain of the second amplifier is low, the output signal will respond to the change in state of the input signal with minimum delay. When the gain of the first amplifier is low and the gain of the second amplifier is high, the output signal will respond to the change in state of the input signal with maximum delay. The delay in change of state of the output signal in response to a change of state in the input signal may be adjusted with high resolution to a time intermediate between the minimum and maximum delays by adjusting the gains of the first and second amplifiers.

REFERENCES:
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patent: 4388595 (1983-06-01), Brooks
patent: 4547743 (1985-10-01), Goto
patent: 4675562 (1987-06-01), Herlein et al.

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