Version 4
SHEET 1 1032 768
WIRE 160 400 160 320
WIRE 160 320 256 320
WIRE 160 496 160 528
WIRE 160 608 160 640
WIRE 160 640 -48 640
WIRE -48 608 -48 640
WIRE -48 640 -192 640
WIRE -48 528 -48 496
WIRE 16 448 48 448
WIRE 48 448 48 368
WIRE 48 448 96 448
WIRE 48 368 -48 368
WIRE -48 368 -48 400
WIRE -80 368 -48 368
WIRE -160 368 -192 368
WIRE 720 160 720 128
WIRE 720 128 752 128
WIRE 720 240 720 272
WIRE 832 128 864 128
WIRE 864 0 864 80
WIRE 864 128 864 160
WIRE 864 240 864 272
WIRE 128 -208 160 -208
WIRE 160 -208 160 -128
WIRE 160 -208 192 -208
WIRE 160 -128 256 -128
WIRE 256 -128 256 -160
WIRE 816 -80 688 -80
WIRE 64 -80 64 -160
WIRE 256 -256 256 -288
WIRE 64 -256 64 -288
WIRE 688 -256 688 -400
WIRE 688 -400 864 -400
WIRE 864 -400 864 -368
WIRE 752 -208 864 -208
WIRE 864 -208 864 -288
WIRE 864 -208 864 -96
WIRE 688 -160 688 -80
WIRE 688 -80 592 -80
WIRE 256 -368 256 -400
WIRE 256 -400 64 -400
WIRE 64 -400 64 -368
WIRE 256 -400 592 -400
WIRE 0 128 -80 128
WIRE -160 128 -192 128
WIRE 592 -240 592 -400
WIRE 592 -400 688 -400
WIRE 592 -176 592 -80
WIRE 592 -80 64 -80
WIRE -192 -400 64 -400
WIRE 64 -48 64 -80
WIRE 256 -48 256 -128
WIRE 256 48 256 80
WIRE 64 48 64 80
WIRE 528 640 640 640
WIRE 864 640 864 608
WIRE 528 608 528 640
WIRE 640 608 640 640
WIRE 640 640 752 640
WIRE 752 608 752 640
WIRE 752 640 864 640
WIRE 864 640 864 672
WIRE 864 80 896 80
WIRE 864 80 864 128
WIRE -192 0 -160 0
WIRE 320 0 352 0
WIRE 432 0 496 0
WIRE -80 0 0 0
WIRE 448 128 400 128
WIRE 528 128 576 128
WIRE 400 128 400 96
WIRE 400 128 320 128
WIRE 576 128 576 96
WIRE 576 128 720 128
WIRE 160 320 64 320
WIRE 64 288 64 320
WIRE 256 288 256 320
WIRE 256 208 256 176
WIRE 64 208 64 176
FLAG -192 368 0
FLAG -192 640 -15V
IOPIN -192 640 In
FLAG 720 272 0
FLAG 864 272 0
FLAG -192 128 VSET
IOPIN -192 128 In
FLAG -192 -400 400V
IOPIN -192 -400 In
FLAG -192 0 +15V
IOPIN -192 0 In
FLAG 496 0 +15V
IOPIN 496 0 In
FLAG 864 672 0
FLAG 528 528 +15V
IOPIN 528 528 Out
FLAG 640 528 -15V
IOPIN 640 528 Out
FLAG 752 528 VSET
IOPIN 752 528 Out
FLAG 864 528 400V
IOPIN 864 528 Out
FLAG 896 80 VOUT
IOPIN 896 80 Out
FLAG 400 96 A
IOPIN 400 96 Out
FLAG 576 96 B
IOPIN 576 96 Out
SYMBOL npn 0 80 R0
WINDOW 0 56 39 Left 0
WINDOW 3 56 61 Left 0
SYMATTR InstName Q1
SYMATTR Value 2N2222
SYMBOL npn 320 80 M0
WINDOW 0 93 39 Left 0
WINDOW 3 52 61 Left 0
SYMATTR InstName Q2
SYMATTR Value 2N2222
SYMBOL npn 96 400 R0
WINDOW 0 56 36 Left 0
WINDOW 3 56 60 Left 0
SYMATTR InstName Q4
SYMATTR Value 2N2222
SYMBOL npn 16 400 M0
WINDOW 0 93 38 Left 0
WINDOW 3 52 61 Left 0
SYMATTR InstName Q3
SYMATTR Value 2N2222
SYMBOL res -64 512 R0
WINDOW 3 36 63 Left 0
SYMATTR Value 4K7
SYMATTR InstName R1
SYMBOL res 144 512 R0
WINDOW 3 36 61 Left 0
SYMATTR Value 4K7
SYMATTR InstName R2
SYMBOL res -64 352 R90
WINDOW 0 -22 62 VBottom 0
WINDOW 3 -25 54 VTop 0
SYMATTR InstName R3
SYMATTR Value 10K
SYMBOL res 704 144 R0
WINDOW 0 -43 42 Left 0
WINDOW 3 -43 62 Left 0
SYMATTR InstName R13
SYMATTR Value 10K
SYMBOL res 848 112 R90
WINDOW 0 -25 67 VBottom 0
WINDOW 3 -27 53 VTop 0
SYMATTR InstName R12
SYMATTR Value 390K
SYMBOL res 848 144 R0
WINDOW 3 36 65 Left 0
SYMATTR Value 5K
SYMATTR InstName RLOAD
SYMBOL pmos 816 0 M180
WINDOW 0 59 60 Left 0
WINDOW 3 59 36 Left 0
SYMATTR InstName M1
SYMATTR Value BSS84
SYMBOL res 848 -384 R0
WINDOW 0 39 47 Left 0
WINDOW 3 39 68 Left 0
SYMATTR InstName R11
SYMATTR Value 4R7
SYMBOL pnp 752 -160 R180
WINDOW 0 82 60 Left 0
WINDOW 3 41 37 Left 0
SYMATTR InstName Q9
SYMATTR Value 2N2907
SYMBOL pnp 128 -160 R180
WINDOW 0 84 64 Left 0
WINDOW 3 35 41 Left 0
SYMATTR InstName Q7
SYMATTR Value 2N2907
SYMBOL pnp 192 -160 M180
WINDOW 0 63 62 Left 0
WINDOW 3 59 38 Left 0
SYMATTR InstName Q8
SYMATTR Value 2N2907
SYMBOL res 48 -384 R0
WINDOW 0 -44 42 Left 0
WINDOW 3 -44 65 Left 0
SYMATTR InstName R9
SYMATTR Value 2K2
SYMBOL res 240 -384 R0
WINDOW 3 36 66 Left 0
SYMATTR Value 2K2
SYMATTR InstName R10
SYMBOL res -64 112 R90
WINDOW 0 -21 56 VBottom 0
WINDOW 3 -27 54 VTop 0
SYMATTR InstName R6
SYMATTR Value 10K
SYMBOL zener 608 -176 R180
WINDOW 0 124 49 Left 0
WINDOW 3 37 22 Left 0
SYMATTR InstName Z1
SYMATTR Value BZX84C12L
SYMBOL npn 0 -48 R0
WINDOW 3 56 57 Left 0
SYMATTR Value 2N5550
SYMATTR InstName Q5
SYMBOL npn 320 -48 M0
WINDOW 0 76 32 Left 0
WINDOW 3 33 57 Left 0
SYMATTR InstName Q6
SYMATTR Value 2N5550
SYMBOL voltage 640 512 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value -15V
SYMBOL voltage 752 512 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 24 104 Invisible 0
SYMATTR Value PULSE(1 9 0 10n 10n 50u 100u)
SYMATTR InstName V3
SYMBOL voltage 864 512 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V4
SYMATTR Value 400V
SYMBOL voltage 528 512 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value +15V
SYMBOL res -64 -16 R90
WINDOW 0 -26 57 VBottom 0
WINDOW 3 -27 59 VTop 0
SYMATTR InstName R7
SYMATTR Value 1K
SYMBOL res 448 -16 R90
WINDOW 0 -24 56 VBottom 0
WINDOW 3 -29 60 VTop 0
SYMATTR InstName R8
SYMATTR Value 1K
SYMBOL voltage 432 128 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 -32 56 VBottom 0
WINDOW 123 -36 56 VBottom 0
WINDOW 39 0 0 Left 0
SYMATTR InstName VAC
SYMATTR Value ""
SYMATTR Value2 AC 1 0
SYMBOL res 240 192 R0
WINDOW 3 36 63 Left 0
SYMATTR Value 4K7
SYMATTR InstName R5
SYMBOL res 48 192 R0
WINDOW 0 -46 42 Left 0
WINDOW 3 -44 65 Left 0
SYMATTR InstName R4
SYMATTR Value 4K7
TEXT -272 688 Left 0 ;.op
TEXT -272 712 Left 0 ;.tran 0 1m 0
TEXT -272 736 Left 0 !.ac dec 20 1 1E7