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Voltage Controlled PWM using OP-Amp

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halee awan

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Hi,

Anyone who has experience with that how to get a PWM signal whose Puls should be controlled based one the I/P voltage ±5V Using simple OP-Amp ?
Thanks in advance
 

chuckey

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H.E.Tjelum

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Hi

For some years ago i designed a PWM board with simple components, to demonstrate the basic principle for generating a PWM signal. The board was a part of a complete DC motor controller build from scratch.


The input voltage range is not what you describe, but you can make a few changes to the schematic, to adapt it to your voltage levels.

H.E.Tjelum
 

halee awan

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thanks to you all
I'd designed this Hardware for some specific task and i used 555 timer
for ±5V supply I used absolute cct using Op-Amp so its Works for me
 

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