Version 4 SHEET 1 1536 1496 WIRE -80 -224 -80 -304 WIRE 1056 -192 1056 -224 WIRE 784 -128 784 -160 WIRE 640 -96 640 -128 WIRE 1056 -80 1056 -112 WIRE 1104 -80 1056 -80 WIRE 1152 -80 1104 -80 WIRE 1312 -80 1216 -80 WIRE 1360 -80 1312 -80 WIRE 1056 -64 1056 -80 WIRE -80 -48 -80 -144 WIRE 1312 -48 1312 -80 WIRE 784 -16 784 -48 WIRE 896 -16 784 -16 WIRE 992 -16 896 -16 WIRE 784 16 784 -16 WIRE 64 64 16 64 WIRE 160 64 128 64 WIRE 288 64 240 64 WIRE 320 64 288 64 WIRE 464 64 400 64 WIRE 640 64 640 -16 WIRE 640 64 464 64 WIRE 720 64 640 64 WIRE 1056 64 1056 32 WIRE 1312 64 1312 32 WIRE 464 96 464 64 WIRE 640 112 640 64 WIRE 784 128 784 112 WIRE 880 128 784 128 WIRE 16 144 16 64 WIRE 784 144 784 128 WIRE 288 160 288 64 WIRE 880 160 880 128 WIRE 464 192 464 160 WIRE 1056 192 1056 144 WIRE 1200 192 1056 192 WIRE 1056 208 1056 192 WIRE 1200 224 1200 192 WIRE 640 240 640 192 WIRE 784 272 784 224 WIRE 880 272 880 224 WIRE 16 304 16 224 WIRE 464 320 464 272 WIRE 1056 336 1056 288 WIRE 288 384 288 240 WIRE 928 384 288 384 WIRE 1200 384 1200 288 WIRE 1200 384 1008 384 FLAG -80 -48 0 FLAG -80 -304 VCC FLAG 1056 -224 VCC FLAG 1312 64 0 FLAG 640 240 0 FLAG 784 272 0 FLAG 640 -128 VCC FLAG 1056 336 0 FLAG 784 -160 VCC FLAG 880 272 0 FLAG 896 -16 OUT1 FLAG 1104 -80 OUT2 FLAG 1360 -80 OUT FLAG 16 304 0 FLAG 464 320 0 SYMBOL voltage -80 -240 R0 SYMATTR InstName Vps1 SYMATTR Value 12V SYMBOL voltage 288 144 R0 SYMATTR InstName V_Fdbk SYMATTR Value 0V SYMBOL voltage 304 64 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 -32 56 VBottom 2 SYMATTR InstName V_Err SYMATTR Value 0V SYMBOL voltage 144 64 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 -32 56 VBottom 2 SYMATTR InstName V_s SYMATTR Value 0V SYMBOL res 1040 -208 R0 SYMATTR InstName RC2 SYMATTR Value 8k SYMBOL npn 720 16 R0 SYMATTR InstName Q1 SYMATTR Value 2N3904 SYMBOL res 768 128 R0 SYMATTR InstName RE1 SYMATTR Value 870 SYMBOL cap 1216 -96 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName Cc2 SYMATTR Value 1 SYMBOL res 1296 -64 R0 SYMATTR InstName RL SYMATTR Value 1k SYMBOL res 624 96 R0 SYMATTR InstName RB2 SYMATTR Value 15k SYMBOL cap 128 48 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName Cc1a SYMATTR Value 1 SYMBOL res 624 -112 R0 SYMATTR InstName RB1 SYMATTR Value 100k SYMBOL npn 992 -64 R0 SYMATTR InstName Q2 SYMATTR Value 2N3904 SYMBOL res 1040 192 R0 SYMATTR InstName RE2 SYMATTR Value 3.4k SYMBOL cap 1184 224 R0 SYMATTR InstName Cf SYMATTR Value 1 SYMBOL res 768 -144 R0 SYMATTR InstName RC1 SYMATTR Value 10k SYMBOL cap 864 160 R0 SYMATTR InstName CE SYMATTR Value 1 SYMBOL voltage 1056 48 R0 SYMATTR InstName V_Sen SYMATTR Value 0V SYMBOL res 1024 400 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName Rf SYMATTR Value 10k SYMBOL res 448 176 R0 SYMATTR InstName Rs SYMATTR Value 10k SYMBOL current 16 224 R180 WINDOW 0 24 80 Left 2 WINDOW 3 24 0 Left 2 WINDOW 123 24 -22 Left 2 SYMATTR InstName Is SYMATTR Value 0 SYMATTR Value2 AC 1A 0deg SYMBOL cap 448 96 R0 SYMATTR InstName Cc1b SYMATTR Value 1 TEXT 720 576 Left 2 ;.OP TEXT 656 488 Left 2 ;Spice Directive TEXT 624 536 Left 2 !.AC DEC 10 1Hz 1GHz