Half Wave Series Multiplier
Most common circuit
Very versatile
Uniform stress/stage on diodes and capacitors.
Wide range of multiplication stages.

Half Wave Parallel Multiplier
Small size
Highly efficient
Uniform stress on diodes
Increasing voltage stress on caps. with successive stages

Full Wave Series-Parallel Multiplier
Highly efficient
Uniform stress
Increasing voltage stress on capacitors with successive stages
High power capability