The output voltage is roughly the input voltage times the number of capacitor/diode pairs; for example, a voltage doubler uses two capacitor/diode pairs. A voltage tripler uses three pairs.

This is advantageous when the design requires several external ICs which operate from a higher voltage than the nominal input supply. The converter has a typical efficiency of 79% at a low output ...

Fig. 1. Voltage doubler (a) and transistor like diode model (b) In case of ideal diodes, the final voltage transferred to C2 without output load is equal to 2VRF,max. Furthermore, it is easy to ...

which uses a single diode and a capacitor in a simple voltage multiplier. The capacitor value is adjusted to lower the power output, and a pretty thorough job is done of characterising the circuit.