DC CHOPPER CIRCUIT (chopper.cir)         ;title line
VS 1 0 DC 24                             ;dc source
Rload 1 2 5                              ;load resistance
S1 2 0 10 0 SMOD                         ;voltage-controlled switch
.MODEL SMOD VSWITCH(RON=.001)  ;model for voltage-controlled switch
VCONTROL 10 0 PULSE(-2V 2V 0 1US 1US 10MS 25MS) ;control for switch
.TRAN .1MS 75MS                          ;transient analysis
.PROBE                                   ;runs Probe
.END