Version 4
SHEET 1 880 680
WIRE 96 64 80 64
WIRE 224 64 176 64
WIRE 352 64 224 64
WIRE 224 96 224 64
WIRE 352 112 352 64
WIRE 80 128 80 64
WIRE 224 192 224 176
WIRE 80 304 80 208
WIRE 224 304 224 272
WIRE 224 304 80 304
WIRE 352 304 352 192
WIRE 352 304 224 304
FLAG 224 304 0
FLAG 80 64 A
FLAG 224 64 B
SYMBOL ind 64 112 R0
SYMATTR InstName L1
SYMATTR Value 2
SYMBOL bv 224 176 R0
WINDOW 3 37 62 Left 2
SYMATTR Value V=2*(V(A)-V(B))
SYMATTR InstName B1
SYMBOL res 192 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 1
SYMBOL res 208 80 R0
SYMATTR InstName R1
SYMATTR Value 2
SYMBOL res 336 96 R0
SYMATTR InstName R2
SYMATTR Value 6
TEXT -80 168 Left 2 !.ic I(L1)=12
TEXT -80 352 Left 2 !.tran 10