Version 4
SHEET 1 1372 680
WIRE -16 48 -80 48
WIRE 144 48 -16 48
WIRE 288 48 240 48
WIRE 464 48 368 48
WIRE 704 48 464 48
WIRE 800 48 704 48
WIRE 912 48 800 48
WIRE 1056 48 912 48
WIRE -80 64 -80 48
WIRE 912 112 912 48
WIRE 1056 112 1056 48
WIRE 192 160 192 112
WIRE 256 160 192 160
WIRE 352 160 320 160
WIRE 464 160 464 48
WIRE 464 160 416 160
WIRE -240 192 -400 192
WIRE -80 192 -80 144
WIRE -80 192 -240 192
WIRE 192 192 192 160
WIRE 912 208 912 176
WIRE 1152 208 912 208
WIRE 704 224 704 48
WIRE 800 240 800 48
WIRE 1152 240 1152 208
WIRE 192 288 192 272
WIRE -240 304 -240 192
WIRE -80 304 -80 192
WIRE -400 320 -400 192
WIRE 288 336 256 336
WIRE 464 336 368 336
WIRE 1056 352 1056 176
WIRE 1152 352 1152 320
WIRE 1152 352 1056 352
WIRE 464 368 464 336
WIRE 912 400 912 208
WIRE 1056 400 1056 352
WIRE -400 544 -400 384
WIRE -240 544 -240 384
WIRE -240 544 -400 544
WIRE -80 544 -80 384
WIRE -80 544 -240 544
WIRE 192 544 192 384
WIRE 192 544 -80 544
WIRE 464 544 464 448
WIRE 464 544 192 544
WIRE 704 544 704 304
WIRE 704 544 464 544
WIRE 800 544 800 304
WIRE 800 544 704 544
WIRE 912 544 912 464
WIRE 912 544 800 544
WIRE 1056 544 1056 464
WIRE 1056 544 912 544
WIRE 192 576 192 544
FLAG 192 576 0
FLAG -16 48 Uout
FLAG 912 48 Vp
SYMBOL pnp 144 112 R270
SYMATTR InstName Q1
SYMATTR Value BCP53-16
SYMBOL res 384 32 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 6R8
SYMBOL npn 256 288 M0
SYMATTR InstName Q2
SYMATTR Value BC846B
SYMBOL res 176 176 R0
SYMATTR InstName R2
SYMATTR Value 4k7
SYMBOL diode 320 144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D1
SYMATTR Value BAV99
SYMBOL diode 416 144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMATTR Value BAV99
SYMBOL voltage 1152 224 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 132 Left 2
SYMATTR SpiceLine Rser=12
SYMATTR InstName V1
SYMATTR Value SINE(0 21.2 50)
SYMBOL res 384 320 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL voltage 464 352 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -133 220 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 3 0 0 0 500m 1000m)
SYMBOL cap -416 320 R0
SYMATTR InstName C1
SYMATTR Value 10µ
SYMBOL res -96 48 R0
SYMATTR InstName R5
SYMATTR Value 10
SYMBOL diode 928 176 R180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D3
SYMATTR Value 1N4148
SYMBOL diode 1072 176 R180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D4
SYMATTR Value 1N4148
SYMBOL diode 928 464 R180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D5
SYMATTR Value 1N4148
SYMBOL diode 1072 464 R180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D6
SYMATTR Value 1N4148
SYMBOL cap 784 240 R0
SYMATTR InstName C2
SYMATTR Value 820µ
SYMBOL current 704 224 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value 80m
SYMBOL current -80 304 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 108 Left 2
SYMATTR SpiceLine load
SYMATTR InstName I2
SYMATTR Value 5m
SYMBOL current -240 304 R0
WINDOW 3 -176 268 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 24 108 Left 2
SYMATTR Value PULSE(0 83m .2 10n 10n 10m 1)
SYMATTR SpiceLine load
SYMATTR InstName I3
TEXT -96 600 Left 2 !.tran 2
TEXT 1256 256 Left 2 ;14V~
TEXT 560 248 Left 2 ;Display\nLoad
TEXT -56 256 Left 2 ;Sensor\nLoad
TEXT 0 96 Left 2 ;Damping\nresistor
TEXT 544 360 Left 2 ;Sensor-\npower-\nsignal
TEXT -224 232 Left 2 ;Transmit\nCurrent