Controllable delay circuit

Details Controllable delay circuit Controllable delay circuit

1987-11-25

1989-01-10

Miller, Stanley D.

Electrical transmission or interconnection systems

With nonswitching means responsive to external nonelectrical...

Temperature responsive

307608, 328 55, H03K 513, H03K 1728

Patent

active

047975865

ABSTRACT:
A delay circuit generates an output signal that changes state in adjustably delayed response to a state change in an input signal, the delay being adjusted by a control signal. A series of buffers produces a plurality of delayed signals that change state at different times in response to state changes in the input signal. Amplifiers amplify the input and each delayed signal to produce output currents that are summed to provide a load current through load resistors, thereby providing the output voltage across the load resistors. The gain of each amplifier is adjusted in accordance with the control signal such that at least one and not more than two of the amplifiers have non-zero gain. The delay provided by the delay circuit is determined by the relative gains of the amplifiers.

REFERENCES:
patent: 3148336 (1964-09-01), Milford
patent: 3292110 (1966-12-01), Becker et al.
patent: 3778543 (1973-12-01), Lowry
patent: 4434438 (1984-02-01), Rzeszewski
patent: 4675562 (1987-06-01), Herlein et al.

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