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# 555 Triangle Waveform Generator Circuit

The circuit is a triangle waveform generator that uses as few parts as possible.
A 555 timer IC, 2 resistors and two capacitors make the triangle wave.
The IC is connected in a 50% duty-cycle astable square-wave oscillator circuit.
The square-wave output is fed from pin 3 of the IC to an RC shaping circuit.

When the 555’s square-wave output goes high, C2 begins to charge through R2 and the voltage across C2 increases as long as the output remains high. When the IC’s output goes low again, C2 begins to discharge through R2 reducing the voltage C2 as long the output remains low. The resulting waveform accross C2 takes the shape of a triangle. The best waveform linearity is obtained when R2 and C2 are made as large as possible. With the component values shown, the peak-to-peak output is 0.5 V at a frequency of about 200 Hz.

## Triangle Waveform Generator Circuit Diagram

• Monsoor

Very neat and usable circuit, but…

Does anybody know a formula for the frequency?

• loka

thanks 🙂

• muthu

sir I want to produce 10 khertz frequency triangular wave what I have to do for that

• mlo

what are the application of 555 Triangle Waveform Generator and how to calculate frequency

• ram

i need to convert 50hz ac to 100hz ac.. help me to bulid a circuit.

• Lucas

I need to generate a wave of 0,5hz and at about 5vpp for fading leds on and off, can you tell me how to adapt the circuit? thanks.

• anthony

This circuit is just right for me. Please how can I generate this wave with three different frequencies?

• ram

this circuit is very simple.

• shoyeb khan

it make easy with 555 ic triangular wavegenrator

• trimurti

TO,
MY LUV SRIKANT
tu bada kholali ta re pua.
book kinunu.

FROM—UR LUV trimurti(JANU)

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