Logic circuit for controlling a supply on drive pulses to regula

Details Logic circuit for controlling a supply on drive pulses to regula Logic circuit for controlling a supply on drive pulses to regula

1992-02-07

1993-11-02

Hudspeth, David R.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307443, 307246, H03K 19013

Patent

active

052586677

ABSTRACT:
A logic circuit has means for controlling an active pull-down circuit in response to a detected result of an output level detection circuit. This prevents an undershoot of the output. Accordingly, it is possible to prevent malfunctions of a logic circuit in the next stage. It also prevents a prolongation of the transition time at the time of a rise of the output potential. Moreover, it reduces the power consumption of the circuit as a whole by decreasing a wasteful current from the output transistor of the emitter-follower to the active transistor.

REFERENCES:
patent: 4678942 (1987-07-01), Kanai et al.
patent: 4687953 (1987-08-01), Varadarajan
patent: 4928025 (1990-05-01), Kokado
patent: 4948991 (1990-08-01), Schucker et al.
patent: 5101124 (1992-03-01), Estrada
patent: 5118973 (1992-06-01), Sakai et al.

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