Version 4
SHEET 1 1704 680
WIRE 144 -208 96 -208
WIRE 176 -208 144 -208
WIRE 368 -208 176 -208
WIRE 688 -208 368 -208
WIRE 176 -192 176 -208
WIRE 688 -192 688 -208
WIRE 96 -128 96 -208
WIRE 368 -128 368 -208
WIRE 176 -96 176 -112
WIRE 688 -64 688 -112
WIRE 688 -16 688 -64
WIRE -32 0 -96 0
WIRE 96 0 96 -64
WIRE 96 0 -32 0
WIRE 176 0 176 -32
WIRE 176 0 96 0
WIRE 368 0 368 -64
WIRE 416 0 368 0
WIRE 432 0 416 0
WIRE 176 16 176 0
WIRE 96 80 96 0
WIRE 368 80 368 0
WIRE -96 112 -96 0
WIRE 176 112 176 96
WIRE 688 112 688 64
WIRE 688 160 688 112
WIRE 96 192 96 144
WIRE 176 192 176 176
WIRE 176 192 96 192
WIRE 288 192 176 192
WIRE 368 192 368 144
WIRE 368 192 288 192
WIRE 480 192 368 192
WIRE 576 192 544 192
WIRE 576 272 576 192
WIRE 688 272 688 240
WIRE 688 272 576 272
WIRE -96 304 -96 192
WIRE 256 304 -96 304
WIRE 320 304 256 304
WIRE 432 304 432 0
WIRE 432 304 384 304
WIRE 256 384 256 304
FLAG 256 384 0
FLAG 688 -64 FLhigh
FLAG 688 112 FLlow
FLAG -32 0 In
FLAG 416 0 OutC
FLAG 144 -208 D1K
FLAG 288 192 D2A
SYMBOL diode 112 -64 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value RFN3BGE6S
SYMBOL cap 160 -96 R0
SYMATTR InstName C1
SYMATTR Value 3.3µ
SYMBOL cap 160 112 R0
SYMATTR InstName C2
SYMATTR Value 3.3µ
SYMBOL res 160 -208 R0
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL res 160 0 R0
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL res 672 -32 R0
WINDOW 3 36 68 Left 2
SYMATTR Value {Lamp}
SYMATTR InstName R3
SYMBOL res 672 -208 R0
SYMATTR InstName R4
SYMATTR Value 22
SYMBOL res 672 144 R0
SYMATTR InstName R5
SYMATTR Value 22
SYMBOL cap 384 288 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 2.2µ
SYMBOL voltage -96 96 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value SINE(0 311 50 0 0 0 10)
SYMBOL diode 112 144 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value RFN3BGE6S
SYMBOL diode 384 -64 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D3
SYMATTR Value RFN3BGE6S
SYMBOL diode 384 144 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D4
SYMATTR Value RFN3BGE6S
SYMBOL diode 544 176 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D5
SYMATTR Value RFN3BGE6S
TEXT -64 456 Left 2 !.tran 200m
TEXT 520 336 Left 2 !.meas TRAN power AVG (V(flhigh)-V(fllow))*I(R3) FROM 180m TO 200m
TEXT 528 400 Left 2 !.step dec param Lamp 0.5k 500k 5
TEXT 520 368 Left 2 !.meas TRAN voltage AVG V(flhigh)-V(fllow) FROM 180m TO 200m
TEXT 40 288 Left 2 ;2
TEXT 112 -16 Left 2 ;3
TEXT 192 -224 Left 2 ;4
TEXT 240 200 Left 2 ;5
TEXT 696 -56 Left 2 ;6
TEXT 696 120 Left 2 ;7
TEXT 408 16 Left 2 ;8
TEXT 160 112 Left 2 ;9
TEXT 552 184 Left 2 ;10
TEXT 160 -96 Left 2 ;11
TEXT 528 432 Left 2 !.meas TRAN current AVG I(R3) FROM 180m TO 200m