Version 4
SHEET 1 880 680
WIRE 352 -16 -32 -16
WIRE 352 0 352 -16
WIRE -32 128 -32 -16
WIRE 352 128 352 64
WIRE 352 128 128 128
WIRE 528 128 352 128
WIRE 528 176 528 128
WIRE 352 224 352 128
WIRE -32 352 -32 208
WIRE 128 352 128 208
WIRE 128 352 -32 352
WIRE 256 352 128 352
WIRE 352 352 352 288
WIRE 352 352 256 352
WIRE 528 352 528 256
WIRE 528 352 352 352
FLAG 256 352 0
SYMBOL voltage 128 112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR InstName V1
SYMATTR Value 5
SYMATTR SpiceLine Rser=10
SYMBOL voltage -32 112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR InstName V2
SYMATTR Value 3.3
SYMATTR SpiceLine Rser=10
SYMBOL schottky 368 64 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N5817
SYMBOL schottky 368 288 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value 1N5817
SYMBOL res 512 160 R0
SYMATTR InstName R1
SYMATTR Value 300k
TEXT -66 362 Left 2 !.tran 1s