Version 4
SHEET 1 1432 680
WIRE 208 -176 176 -176
WIRE 320 -176 288 -176
WIRE 176 -80 176 -176
WIRE 208 -80 176 -80
WIRE 320 -80 320 -176
WIRE 320 -80 288 -80
WIRE 176 16 176 -80
WIRE 176 16 32 16
WIRE 208 16 176 16
WIRE 320 16 320 -80
WIRE 320 16 288 16
WIRE 464 16 320 16
WIRE 176 96 176 16
WIRE 208 96 176 96
WIRE 320 96 320 16
WIRE 320 96 288 96
WIRE 32 144 32 16
WIRE 464 144 464 16
WIRE 688 176 688 80
WIRE 32 288 32 224
WIRE 464 288 464 208
WIRE 464 288 32 288
WIRE 688 288 688 256
WIRE 32 336 32 288
FLAG 32 336 0
FLAG 688 288 0
FLAG 688 80 Integrator
SYMBOL voltage 32 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 325 50 0 0 90)
SYMBOL res 192 -160 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 82
SYMATTR SpiceLine pwr=7
SYMBOL cap 448 144 R0
WINDOW 39 24 84 Left 2
SYMATTR SpiceLine IC=0
SYMATTR InstName C1
SYMATTR Value 1500µ
SYMBOL voltage 688 160 R0
SYMATTR InstName B1
SYMATTR Value V={idt(I(R1)*I(R1)*82)}
SYMATTR Prefix B
SYMBOL res 192 -64 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 82
SYMATTR SpiceLine pwr=7
SYMBOL res 192 32 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 82
SYMATTR SpiceLine pwr=7
SYMBOL res 192 112 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 82
SYMATTR SpiceLine pwr=7
TEXT -144 272 Left 2 !.tran 300m