DC-Coupled Schmitt trigger circuit with input impedance peaking

Details DC-Coupled Schmitt trigger circuit with input impedance peaking DC-Coupled Schmitt trigger circuit with input impedance peaking

Filed on

1978-02-03

Date issued

1980-08-26

Examiner

Heyman, John S.

Patent Class

Electrical transmission or interconnection systems

SubClass

Nonlinear reactor systems

SubSubClass

Parametrons

Other Related Categories

307291, 307317A, H03K 3286

Type

Patent

Status

active

Patent number

042197449

Description

ABSTRACT:
A compact, DC-coupled Schmitt trigger circuit is disclosed for providing fast switching in response to differential current signals from an input source such as an amplifier. The circuit includes first and second matched pairs of transistors disposed for performing switching and feedback functions, respectively, and for producing a voltage at an input or base of the first pair equal to the sum (AND function) of the source voltage and the voltage at an emitter of the feedback pair. In response to the applied current signals, the transistors of the second matched pair are always in a conducting state (and requires no extra time to turn on) regardless of the conducting state of either of the transistors of the first matched pair. The circuit includes first and second matched pairs of resistors coupled to selected ones of the transistors, the resistance values of which second matched pair of resistors are selected such that the input impedance of the circuit peaks at a selected high frequency of the applied current signal.

REFERENCES:
patent: 2840728 (1958-06-01), Haugk et al.
patent: 3307047 (1967-02-01), Narud et al.
patent: 3617776 (1971-11-01), Priel
patent: 3849675 (1974-11-01), Waaben
patent: 3979735 (1976-09-01), Payne

Affiliated with

Also associated with

Rating

DC-Coupled Schmitt trigger circuit with input impedance peaking does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with DC-Coupled Schmitt trigger circuit with input impedance peaking , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC-Coupled Schmitt trigger circuit with input impedance peaking will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1307059