Version 4
SHEET 1 1792 1432
WIRE 48 272 48 240
WIRE 176 272 48 272
WIRE 432 272 400 272
WIRE 496 272 432 272
WIRE -144 288 -144 256
WIRE 48 288 48 272
WIRE 432 336 432 272
WIRE 432 336 400 336
WIRE 496 336 496 272
WIRE -144 400 -144 368
WIRE 48 400 48 368
WIRE 176 400 48 400
WIRE 432 400 432 336
WIRE 432 400 400 400
WIRE 176 464 144 464
WIRE 432 464 432 400
WIRE 432 464 400 464
WIRE 496 464 496 400
WIRE 144 560 144 464
WIRE 496 592 496 528
WIRE 496 688 496 656
FLAG 144 560 0
FLAG 496 688 0
FLAG -144 400 0
FLAG -144 256 Vbat
FLAG 48 240 Vbat
SYMBOL diode 480 464 R0
SYMATTR InstName D1
SYMATTR Value D1N4376
SYMBOL diode 480 592 R0
SYMATTR InstName D2
SYMATTR Value D1N4376
SYMBOL diode 480 336 R0
SYMATTR InstName D3
SYMATTR Value D1N4376
SYMBOL res 32 272 R0
SYMATTR InstName R2
SYMATTR Value 2
SYMBOL voltage -144 272 R0
SYMATTR InstName V2
SYMATTR Value 14
SYMBOL NUD4001 288 368 R0
SYMATTR InstName U1
TEXT -160 136 Left 0 !.tran 1m
TEXT -160 104 Left 0 !.include nud4001p.lib