Version 4
SHEET 1 880 680
WIRE 208 -48 48 -48
WIRE 48 -16 48 -48
WIRE 464 64 368 64
WIRE 48 96 48 64
WIRE 368 96 368 64
WIRE 208 144 48 144
WIRE 48 176 48 144
WIRE 368 192 368 176
WIRE 48 288 48 256
WIRE 208 336 48 336
WIRE 384 336 336 336
WIRE 544 336 496 336
WIRE 48 368 48 336
WIRE 48 480 48 448
FLAG 48 96 0
FLAG 48 288 0
FLAG 368 192 0
FLAG 48 480 0
FLAG 208 -48 a
FLAG 208 144 b
FLAG 208 336 c
FLAG 464 64 abc
FLAG 336 336 a
FLAG 544 336 y
SYMBOL voltage 48 -32 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 1 1k)
SYMBOL voltage 48 160 R0
SYMATTR InstName V2
SYMATTR Value SINE(0 1 100)
SYMBOL bv 368 80 R0
SYMATTR InstName B1
SYMATTR Value V=V(a)*(V(b)+V(c))
SYMBOL voltage 48 352 R0
SYMATTR InstName V3
SYMATTR Value 0.5
SYMBOL multiplyconst 432 336 R0
SYMATTR InstName U1
TEXT 48 -152 Left 2 !.tran 0 20m 0 10u
TEXT 48 -112 Left 2 !.options plotwinsize=0