# Sawtooth Oscillator

Discussion in 'Homework Help' started by greggj, Dec 3, 2008.

1. ### greggj Thread Starter New Member

Dec 3, 2008
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What component in a simple Sawtoo Ocillator develops the output cycle ?

Last edited: Dec 3, 2008

Feb 24, 2006
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A capacitor

3. ### Ron H AAC Fanatic!

Apr 14, 2005
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It depends on the circuit. You can indeed change a capacitor and change the frequency, but there is always at least one other component that will also do it, e.g., a resistor.

4. ### KL7AJ AAC Fanatic!

Nov 4, 2008
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A resistor, a capacitor, and a neon bulb make a nice relaxation oscillator

Apr 5, 2008
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6. ### hgmjr Retired Moderator

Jan 28, 2005
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One method of producing a sawtooth waveform is to take a capacitor and charge it using a constant current source. This produces a linear increase in voltage across the capacitor since it is governed by the equation:

$\LARGE \frac{dv}{dt}=\frac{\LARGE i}{C}$

hgmjr