Version 4
SHEET 1 7292 3188
WIRE 3248 144 3248 128
WIRE 4192 176 3808 176
WIRE 4192 192 4192 176
WIRE 4144 208 4128 208
WIRE 2688 224 2688 208
WIRE 4128 224 4128 208
WIRE 2256 240 2160 240
WIRE 3248 240 3248 224
WIRE 2160 288 2160 240
WIRE 4192 288 4192 272
WIRE 4192 288 4048 288
WIRE 4192 304 4192 288
WIRE 2688 320 2688 304
WIRE 4048 320 4048 288
WIRE 4144 320 4128 320
WIRE 3808 336 3808 176
WIRE 4128 336 4128 320
WIRE 3248 352 3248 336
WIRE 2160 384 2160 368
WIRE 4192 416 4192 384
WIRE 4448 416 4192 416
WIRE 2688 432 2688 416
WIRE 3808 432 3808 416
WIRE 4048 432 4048 384
WIRE 4048 432 3808 432
WIRE 3248 448 3248 432
WIRE 3808 448 3808 432
WIRE 4048 448 4048 432
WIRE 4192 448 4192 416
WIRE 4144 464 4128 464
WIRE 4128 480 4128 464
WIRE 2688 528 2688 512
WIRE 4048 544 4048 512
WIRE 4192 544 4192 528
WIRE 4192 544 4048 544
WIRE 3248 560 3248 544
WIRE 4192 560 4192 544
WIRE 4144 576 4128 576
WIRE 2160 592 2160 560
WIRE 4128 592 4128 576
WIRE 2688 640 2688 624
WIRE 3248 656 3248 640
WIRE 3808 656 3808 528
WIRE 4192 656 4192 640
WIRE 4192 656 3808 656
WIRE 3808 672 3808 656
WIRE 2160 688 2160 672
WIRE 2688 736 2688 720
WIRE 3248 768 3248 752
WIRE 3248 864 3248 848
FLAG 2688 320 0
FLAG 2160 688 0
FLAG 2160 560 pwm
FLAG 2160 384 0
FLAG 2256 240 ref_u
FLAG 2688 528 0
FLAG 2688 736 0
FLAG 2688 208 1
FLAG 2688 416 2
FLAG 2688 624 3
FLAG 3248 240 0
FLAG 3248 448 0
FLAG 3248 656 0
FLAG 3248 864 0
FLAG 4128 224 0
FLAG 4128 336 0
FLAG 4128 480 0
FLAG 4128 592 0
FLAG 3248 128 G1
IOPIN 3248 128 BiDir
FLAG 4144 256 G1
IOPIN 4144 256 BiDir
FLAG 3248 336 G2
IOPIN 3248 336 BiDir
FLAG 3248 544 G3
IOPIN 3248 544 BiDir
FLAG 3248 752 G4
IOPIN 3248 752 BiDir
FLAG 4144 512 G3
IOPIN 4144 512 BiDir
FLAG 4144 624 G4
IOPIN 4144 624 BiDir
FLAG 4144 368 G2
IOPIN 4144 368 BiDir
FLAG 3808 672 0
SYMBOL bv 2688 208 R0
SYMATTR InstName B1
SYMATTR Value V=if(V(ref_u)>0.5, 1, 0)
SYMBOL voltage 2160 576 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(-1 1 0 5u 5u 50u 100u)
SYMBOL voltage 2160 272 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value SINE(0 1 100)
SYMBOL bv 2688 416 R0
SYMATTR InstName B2
SYMATTR Value V=if(V(ref_u)<-0.5, 1, 0)
SYMBOL bv 2688 624 R0
SYMATTR InstName B3
SYMATTR Value V=if(V(ref_u)>-0.5 & V(ref_u) <0.5, 1, 0)
SYMBOL bv 3248 128 R0
SYMATTR InstName B5
SYMATTR Value V=if(V(1)==1, V(pwm), 0)
SYMBOL bv 3248 336 R0
SYMATTR InstName B6
SYMATTR Value V=if(V(1)==1| V(3)==1, V(pwm), 0)
SYMBOL bv 3248 544 R0
SYMATTR InstName B7
SYMATTR Value V=if(V(2)==1 | V(3)==1, V(pwm), 0)
SYMBOL bv 3248 752 R0
SYMATTR InstName B8
SYMATTR Value V=if(V(2)==1 , V(pwm), 0)
SYMBOL voltage 3808 320 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 10V
SYMBOL voltage 3808 432 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 10V
SYMBOL sw 4192 176 R0
SYMATTR InstName S1
SYMATTR Value SWB
SYMBOL sw 4192 288 R0
SYMATTR InstName S2
SYMATTR Value SWB
SYMBOL sw 4192 432 R0
SYMATTR InstName S3
SYMATTR Value SWB
SYMBOL sw 4192 544 R0
SYMATTR InstName S4
SYMATTR Value SWB
SYMBOL diode 4064 384 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value RFN5TF8S
SYMBOL diode 4064 512 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value RFN5TF8S
TEXT 2144 744 Left 2 !.tran 10m
TEXT 3752 784 Left 2 !.model SWB SW(Ron=0.5mOhm Roff=1G Vt=.5 Vh=.4)