analog to varied PWM signal

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 D_Hersey over 10 years ago

They have chips for that, this one goes down to 1Hz. Zero would be a tough gig, thinking about it:
LM331 | Voltage-to-Frequency Converters | Special Function Amplifier | Description & parametrics

Barrie Gilbert, so sexy, so erudite, so good:
http://www.analog.com/static/imported-files/application_notes/511072672AN277.pdf

He invited the Gilbert Cell mixer, among other things, which can be used with a single supply. Found on the front end of most if not all cell phones.
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0 D_Hersey over 10 years ago

They have chips for that, this one goes down to 1Hz. Zero would be a tough gig, thinking about it:
LM331 | Voltage-to-Frequency Converters | Special Function Amplifier | Description & parametrics

Barrie Gilbert, so sexy, so erudite, so good:
http://www.analog.com/static/imported-files/application_notes/511072672AN277.pdf

He invited the Gilbert Cell mixer, among other things, which can be used with a single supply. Found on the front end of most if not all cell phones.
Cancel
Vote Up 0 Vote Down

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