A Voltage Doubler Circuit

** Circuit Description **
Vi 1 0 sin ( 0 10V 1kHz )
C1 1 2 1u
C2 3 0 1u
D1 2 0 D1N4148
D2 3 2 D1N4148
* diode model statement
.model D1N4148 D (Is=0.1pA Rs=16 CJO=2p Tt=12n Bv=100 Ibv=0.1p)

** Analysis Requests **
.TRAN 100u 10m 0m 100u 
** Output Requests **
.PLOT TRAN V(1) V(2) V(3)
.probe
.end