Saw-tooth wave generating circuit

Details Saw-tooth wave generating circuit Saw-tooth wave generating circuit

1984-11-27

1986-12-02

Grimm, Siegfried H.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328183, H03K 450

Patent

active

046267026

ABSTRACT:
A saw-tooth wave generating circuit is formed by providing a constant current source with negative feedback through an operational amplifier. The operational amplifier compares a reference voltage with the voltage across a resistor through which a current of the constant current source is flowing, to produce a control voltage for the constant current source. The saw-tooth wave is generated across a capacitor which is charged by the constant current source and is discharged through a transistor which receives a periodic pulse signal.

REFERENCES:
patent: 4035744 (1977-07-01), Fukaya et al.
patent: 4191932 (1980-03-01), Nagahama
patent: 4233575 (1980-11-01), Chapman et al.
patent: 4413237 (1983-11-01), Baba
patent: 4450415 (1984-05-01), Gontowski, Jr.

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