Sawtooth wave oscillator - Electronic Circuits Projects Diagrams Free

bryan1 · 30th January 2005, 01:28 AM

Hiya peoples,
So far I've spent 2 hours goggling for a simple sawtooth wave oscillator with no sucess. My mate said you could make one out of 2 transistors, a resistor and a cap, but trying to find a simple circuit to start with is becoming a pain so if anyone can provide a simple schematic or a link to a site I'll greatly appreciate it.

Cheers Bryan1

2PAC Mafia · 31st January 2005, 08:03 AM

Hello,

I hope this can be useful, I scanned it from a book:

Russlk · 1st February 2005, 03:45 AM

The ratio of R1 - R2 will vary the shape of the saw.

0x34 · 3rd February 2005, 04:15 AM

Place a diode across R2 for a more shaply saw tooth (ramp).

audioguru · 3rd February 2005, 08:23 AM

Add a current source transistor to charge the capacitor linearly:

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30th January 2005, 01:28 AM	(permalink)
bryan1	Sawtooth wave oscillator Hiya peoples, So far I've spent 2 hours goggling for a simple sawtooth wave oscillator with no sucess. My mate said you could make one out of 2 transistors, a resistor and a cap, but trying to find a simple circuit to start with is becoming a pain so if anyone can provide a simple schematic or a link to a site I'll greatly appreciate it. Cheers Bryan1