Triangle waveform generator

Details Triangle waveform generator Triangle waveform generator

1983-05-04

1985-06-18

LaRoche, Eugene R.

Oscillators

Phase shift type

331143, 307228, 328181, H03B 520

Patent

active

045243344

ABSTRACT:
A triangle waveform generator having a comparator which drives an integrator via a limiter is disclosed. At the output of the integrator, the desired triangular waveform voltage is present. The output of the integrator is connected to a first input of the comparator. The output of the comparator is fed back to its first input via a resistor. The output of the integrator is coupled via an integral action controller to a second input of the comparator. The integral action controller has a substantially longer time constant than the integrator. With this circuit, a triangular voltage is obtained, the parameters of which, namely, the slope and the positive and negative peak values, depend only on resistors and reference voltages which can be set within narrow tolerances.

REFERENCES:
patent: 3568086 (1971-03-01), Perry
patent: 3772533 (1973-11-01), Bruckner et al.
patent: 3835419 (1974-09-01), Milne et al.
patent: 3909734 (1975-09-01), Palombo et al.
patent: 3932741 (1976-01-01), Hanson
patent: 4047052 (1977-09-01), Koubek et al.
patent: 4241362 (1980-12-01), Van der Valk
Bishop, A., "Low Frequency Triangle Wave Generator", Wireless World, (May 76), p. 50.
Bailey, M., "Sweeping Ramp Generator Using Op Amps", Electronic Engineering, (Oct. 76), p. 27.
Orr, T., "Triangle/Square Wave Oscillator", Electronics Today International (Great Britain), v. 10, No. 11, (Nov. 81), p. 50.

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