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analog to varied PWM signal

Former Member over 10 years ago

Hello, I would like to develop a circuit that could take a 0-5VDC signal and convert that to a 0-50 hz signal. I would need the ability to adjust the gain and or the pulse width of the output.

Any suggestions?

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0 michaelkellett over 10 years ago

The obvious answer is to use a micro - but it would be possible to advise you better if you explained what you are trying to do. A PWM signal wouldn't normally be described as having a variable frequency so your question is a bit puzzling.

MK
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0 michaelkellett over 10 years ago

The obvious answer is to use a micro - but it would be possible to advise you better if you explained what you are trying to do. A PWM signal wouldn't normally be described as having a variable frequency so your question is a bit puzzling.

MK
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0 D_Hersey over 10 years ago in reply to michaelkellett

One way to make an analog multiplier is to have one operand voltage modulate the frequency of a relaxation oscillator and the other pulse width. Integrating the output yields the product.
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