Version 4
SHEET 1 2236 680
WIRE 1200 -800 1136 -800
WIRE 1136 -704 1136 -720
WIRE 896 -624 880 -624
WIRE 896 -592 880 -592
WIRE 1200 -592 1136 -592
WIRE 1136 -480 1136 -512
FLAG 1136 -480 0
FLAG 1200 -592 GL_C
IOPIN 1200 -592 Out
FLAG 1200 -800 GH_C
IOPIN 1200 -800 Out
FLAG 896 -592 SINECL
IOPIN 896 -592 Out
FLAG 896 -624 RAMP
IOPIN 896 -624 Out
FLAG 1136 -704 0
SYMBOL bv 1136 -816 R0
WINDOW 0 -57 15 Left 0
WINDOW 3 -29 162 Left 0
SYMATTR InstName B3
SYMATTR Value V=if(V(SINECL)>V(RAMP)*1.3,12,0)
SYMBOL bv 1136 -608 R0
WINDOW 0 -57 15 Left 0
WINDOW 3 -29 156 Left 0
SYMATTR InstName B6
SYMATTR Value V=if(V(SINECL)>V(RAMP),0,12)
SYMBOL pwm 832 -608 R0
SYMATTR InstName X6
SYMATTR SpiceLine Vonramp=12 Tf=30u Tr=30u Tp=50u DCoffset=6 Amplitude=6 Frek=500 Phase=0 DelayR=5p Delaysin=5p
TEXT 784 -448 Left 0 !.tran 0 1.2m 1m startup