Variable slew rate pulse generator

Details Variable slew rate pulse generator Variable slew rate pulse generator

1995-07-26

1997-06-24

Wambach, Margaret Rose

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Generating sawtooth or triangular output

327130, 327133, H03K 494

Patent

active

056420676

ABSTRACT:
An integrated circuit pulse generator for per pin testing of electronic circuits. The pulse generator allows for independent adjustment of the slew rates of the rising and falling edges of the pulses. The pulse edges are generated by summing two separately controlled falling edge ramp generators. The circuit design of the pulse generator is structured to allow implementation with NPN transistors. The falling edge ramp generators operate by discharging a capacitor with a current source. The slew rates are varied by incrementally adding capacitance to the capacitor being discharged.

REFERENCES:
patent: 3402353 (1968-09-01), Hubbs
patent: 4591796 (1986-05-01), Mulla-Girard et al.
patent: 4645946 (1987-02-01), Ishikawa et al.
patent: 5025172 (1991-06-01), Carroll et al.
patent: 5140591 (1992-08-01), Palara et al.

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