Voltage Quadrupler Circuit

Circuit Diagram

Circuit Diagram of a simple voltage quadrupler

Parts list

How a Voltage Quadrupler Works

If you have seen the Voltage Doubler, Two-Diode Circuit and the Voltage Tripler Circuit featured in this site, you can easily recognize that the Voltage Quadrupler Circuit above is a mere extension of the said two circuits. You will observe that you can infinitely multiply the input voltage by following the pattern of repeatedly adding a series-connected rectifier-capacitor combination. It's up to you to experiment on adding more diodes and capacitor to achieve the desired output voltage.

The above voltage quadrupler circuit uses minimum components to approximately multiply (quadrupler) the AC voltage (Vin) across the input terminals. The resulting output voltage is DC (Direct Current). Capacitors, C2 and C3, charges to double the value of Vin. The series combination of C2 and C3 produces a DC voltage equivalent to two batteries connected in series. The result is an output DC voltage that is four times the value of Vin. The voltage rating of the diodes and capacitors used should be within safe level, preferably, double the value of the input voltage. You may use capacitance values of 1000mF or higher. The higher the value of the capacitance, the smoother (non-fluctuating) the resulting output DC voltage.


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