Circuit Simulator - Sawtooth Wave Generator

Sawtooth Wave Generator
Sawtooth Wave Generator
Circuit Description:
This circuit is an oscillator that generates a sawtooth wave. It's basically the same circuit as the triangle wave oscillator, except that the resistor in series with the capacitor has been replaced by two resistors, each paired with a diode going in opposite directions. For the first half of the cycle, the capacitor charges through a 40k resistor, and for the other half, it quickly discharges through a 5k resistor.

Discussion:
16 comments Page 2 of 2.

Durga said:   1 decade ago
I tried the same circuit in multisim but the output is not coming may I know the reason?
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DIkSploogeeeeMcGee said:   1 decade ago
I don't get it. It only starts oscillating after you disconnect the power. I need constant power. Well I guess its because nothing is drawing current to theres no where for the electricity in the wires to go.
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Saman said:   1 decade ago
I do not have waveform in the output! Why?
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Rohail said:   9 years ago
Works only with dual power supply op amps. If you have a single supply op amp you need to modify the positive input of second op amp (and maybe the negative input of first op amp as well).
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PluralChimera0 said:   1 decade ago
The sawtooth waves only real use is for sound synthesis. Hook the output up to an 8 ohm speaker and connect the speaker to ground to hear a pure unfiltered sawtooth wave.
(1)

Ekrem Kaya said:   6 years ago
I have tried with LM358 opamp with single power supply by adding virtual zero point. Worked well. Added another opamp and a pot to produce variable PWM signal.
(1)


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