Voltage Tripler Circuit
- D1 - Rectifier Diode
- D2 - Rectifier Diode
- D3 - Rectifier Diode
- C1 - Capacitor, electrolytic
- C2 - Capacitor, electrolytic
- C3 - Capacitor, electrolytic
How a Voltage Tripler Works
The above voltage tripler circuit uses minimum components to approximately multiply (triple) the AC voltage (Vin) across the input terminals. The resulting output voltage is
DC (Direct Current). Capacitor, C2, charges to double the value of Vin so you can see that this is an extension of the Voltage Doubler, Two-Diode Circuit
By providing an additional capacitor, C3 in series with a rectifier diode, D3, across the input terminals, with the capacitor charging to a value equal to Vin, we effectively added a DC voltage source in series
with the voltage across C2 which is two times the value of Vin. The result is an output DC voltage that is threee 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.