Diode voltage doubler, combination diode-capacitor bridge.
*This simulates the circuit of Fig. 4.66, 2nd edition,
*  Elements of Power Electronics by P. Krein, 2015.
.opt acct nomod nopage reltol=.001 itl5=0
.width out=80
.temp 30
.tran 10us 30ms 0 20us uic
*
vin 101 0 sin(0 170 60 0)		;Input sinusoid.
d1 101 1 dio				;Diodes
d2 2 101 dio
c1 1 0 1000uf ic=0v			;Capacitors in the bridge.
c2 2 0 1000uf ic=0v
*The output is v(1,2).
rout 1 2 1000				;Resistive load
.model dio D(Is=10p Rs=0.01)	;Near-ideal diode
.probe
.end