Voltage doubler circuit using 555 timer

  
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This voltage doubler circuit use a 555 timer integrated circuit wired as an astable mutivibrator. This voltage doubler circuit can deliver only up to 50mA output current and above that current limit the output voltage will be reduced. The actual output voltage will be around 22V for a 12V DC input and also the output voltage will be a bit unstable
Voltage doubler circuit using 555 timer - schematic

. Anyway, for low current applications this circuit is well enough.



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