Version 4
SHEET 1 880 680
WIRE 224 48 208 48
WIRE -816 64 -976 64
WIRE -560 64 -720 64
WIRE -304 64 -464 64
WIRE -96 64 -192 64
WIRE 112 64 -96 64
WIRE 208 64 208 48
WIRE 208 64 176 64
WIRE 304 64 208 64
WIRE 448 64 384 64
WIRE 544 64 448 64
WIRE 592 64 544 64
WIRE 208 80 208 64
WIRE -976 96 -976 64
WIRE -720 96 -720 64
WIRE -464 96 -464 64
WIRE -192 96 -192 64
WIRE 448 96 448 64
WIRE 544 96 544 64
WIRE -192 192 -192 176
WIRE 208 192 208 160
WIRE 448 192 448 160
WIRE 544 192 544 176
WIRE -976 208 -976 176
WIRE -720 208 -720 176
WIRE -464 208 -464 176
FLAG -976 208 0
FLAG -720 208 0
FLAG -192 192 0
FLAG -464 208 0
FLAG -816 64 a
FLAG -560 64 s
FLAG -304 64 u
FLAG -96 64 x
FLAG 208 192 0
FLAG 448 192 0
FLAG 544 192 0
FLAG 224 48 y
FLAG 592 64 z
SYMBOL voltage -976 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Tfr
SYMATTR Value SINE(0 1 1000k)
SYMBOL voltage -720 80 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Fmod
SYMATTR Value SINE(0 1 20k)
SYMBOL bv -192 80 R0
SYMATTR InstName OUT
SYMATTR Value V=V(a)*(V(s)+V(u))
SYMBOL voltage -464 80 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName OFFS
SYMATTR Value 0
SYMBOL schottky 112 80 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value BAT15
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 192 64 R0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res 400 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL cap 432 96 R0
SYMATTR InstName C1
SYMATTR Value 1nf
SYMBOL res 528 80 R0
SYMATTR InstName R3
SYMATTR Value 10k
TEXT -80 296 Left 2 !.tran 100u