The theory of operation is the same in both types of multipliers. In comparison,
parallel multipliers require less capacitance per stage. However they also require a higher
voltage rating on each successive stage.
The net result is similar package volume, but slightly different package shape
capabilities. The limit on output voltage in parallel multipliers is determined by the voltage
capability of the capacitors (common single-layer ceramic capacitors do not exceed 20kV).
It tends to be easier to add output filters (RC) to parallel multipliers, when the application
requires extremely low ripple voltage. |