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quad 200v power supply

Looks like my multi-channel cable pulser project is alive again, so I tweaked the power supplies.

If I use avalanche transistors, each channel needs maybe 200 volts at a few uA. This thing doesn't need to pulse very often.

Tuning the various parts is a very slow and tedious process. Almost makes one want to use math.

Version 4 SHEET 1 3072 916 WIRE 0 -208 -96 -208 WIRE 144 -208 64 -208 WIRE -96 -112 -96 -208 WIRE -16 -112 -96 -112 WIRE 112 -112 64 -112 WIRE 144 -112 144 -208 WIRE 144 -112 112 -112 WIRE 240 -112 144 -112 WIRE 304 -112 240 -112 WIRE 448 -112 384 -112 WIRE 560 -112 448 -112 WIRE 672 -112 560 -112 WIRE 784 -112 672 -112 WIRE 1456 -112 1408 -112 WIRE 1520 -112 1456 -112 WIRE 1648 -112 1584 -112 WIRE 1728 -112 1648 -112 WIRE 1888 -112 1792 -112 WIRE 1968 -112 1888 -112 WIRE 2048 -112 1968 -112 WIRE 2352 -112 2304 -112 WIRE 2416 -112 2352 -112 WIRE 2544 -112 2480 -112 WIRE 2624 -112 2544 -112 WIRE 2784 -112 2688 -112 WIRE 2864 -112 2784 -112 WIRE 2944 -112 2864 -112 WIRE 144 -64 144 -112 WIRE 240 -64 240 -112 WIRE 448 -64 448 -112 WIRE 560 -64 560 -112 WIRE 672 -64 672 -112 WIRE 784 -64 784 -112 WIRE 1408 -64 1408 -112 WIRE 1648 -64 1648 -112 WIRE 1888 -64 1888 -112 WIRE 2304 -64 2304 -112 WIRE 2544 -64 2544 -112 WIRE 2784 -64 2784 -112 WIRE -96 -48 -96 -112 WIRE 2048 -48 2048 -112 WIRE 2944 -48 2944 -112 WIRE -96 64 -96 32 WIRE -16 64 -96 64 WIRE 144 64 144 16 WIRE 144 64 48 64 WIRE 240 64 240 16 WIRE 304 64 240 64 WIRE 448 64 448 16 WIRE 448 64 368 64 WIRE 560 64 560 16 WIRE 560 64 448 64 WIRE 672 64 672 16 WIRE 672 64 560 64 WIRE 736 64 672 64 WIRE 784 64 784 16 WIRE 784 64 736 64 WIRE 864 64 784 64 WIRE 1008 64 928 64 WIRE 1152 64 1008 64 WIRE 1408 64 1408 16 WIRE 1648 64 1648 0 WIRE 1888 64 1888 16 WIRE 2048 64 2048 16 WIRE 2304 64 2304 16 WIRE 2544 64 2544 0 WIRE 2784 64 2784 16 WIRE 2944 64 2944 16 WIRE -96 112 -96 64 WIRE 672 112 672 64 WIRE 1008 128 1008 64 WIRE 144 144 144 64 WIRE 576 192 272 192 WIRE 624 192 576 192 WIRE 1008 240 1008 192 WIRE -48 256 -96 256 WIRE 16 256 -48 256 WIRE 400 256 272 256 WIRE 576 256 480 256 WIRE 672 256 672 208 WIRE 672 256 576 256 WIRE 672 288 672 256 WIRE -96 304 -96 256 WIRE 1456 304 1408 304 WIRE 1520 304 1456 304 WIRE 1648 304 1584 304 WIRE 1728 304 1648 304 WIRE 1888 304 1792 304 WIRE 1968 304 1888 304 WIRE 2048 304 1968 304 WIRE 2352 304 2304 304 WIRE 2416 304 2352 304 WIRE 2544 304 2480 304 WIRE 2624 304 2544 304 WIRE 2784 304 2688 304 WIRE 2864 304 2784 304 WIRE 2944 304 2864 304 WIRE 352 320 272 320 WIRE 1408 352 1408 304 WIRE 1648 352 1648 304 WIRE 1888 352 1888 304 WIRE 2304 352 2304 304 WIRE 2544 352 2544 304 WIRE 2784 352 2784 304 WIRE 2048 368 2048 304 WIRE 2944 368 2944 304 WIRE 672 400 672 368 WIRE -96 448 -96 368 WIRE -16 448 -96 448 WIRE 144 448 144 368 WIRE 144 448 64 448 WIRE 208 448 144 448 WIRE 352 448 352 320 WIRE 352 448 288 448 WIRE 480 448 352 448 WIRE 848 448 480 448 WIRE 1024 448 928 448 WIRE 1152 448 1152 64 WIRE 1152 448 1024 448 WIRE 144 480 144 448 WIRE 1408 480 1408 432 WIRE 1648 480 1648 416 WIRE 1888 480 1888 432 WIRE 2048 480 2048 432 WIRE 2304 480 2304 432 WIRE 2544 480 2544 416 WIRE 2784 480 2784 432 WIRE 2944 480 2944 432 FLAG 144 480 0 FLAG 672 400 0 FLAG 1968 -112 HV1 FLAG 112 -112 IN FLAG -96 112 0 FLAG 736 64 Q1D FLAG 576 192 GATE FLAG 576 256 SRC FLAG 480 448 FB FLAG 1408 64 0 FLAG -48 256 COMP FLAG 2048 64 0 FLAG 1456 -112 Z1 FLAG 1888 64 0 FLAG 1648 64 0 FLAG 1008 240 0 FLAG 1024 448 FB_80V FLAG 1968 304 HV2 FLAG 1408 480 0 FLAG 2048 480 0 FLAG 1456 304 Z2 FLAG 1888 480 0 FLAG 1648 480 0 FLAG 2864 -112 HV3 FLAG 2304 64 0 FLAG 2944 64 0 FLAG 2352 -112 Z3 FLAG 2784 64 0 FLAG 2544 64 0 FLAG 2864 304 HV4 FLAG 2304 480 0 FLAG 2944 480 0 FLAG 2352 304 Z4 FLAG 2784 480 0 FLAG 2544 480 0 SYMBOL PowerProducts\\LTC3803 144 256 R0 SYMATTR InstName U1 SYMBOL ind2 656 -80 R0 WINDOW 0 -14 34 Right 2 WINDOW 3 -8 71 Right 2 SYMATTR InstName L3

SYMATTR Type ind SYMATTR SpiceLine Ipk=3.0 Rser=0.32 Cpar=1pF SYMBOL ind2 1424 32 R180 WINDOW 0 101 76 Right 2 WINDOW 3 108 36 Right 2 SYMATTR InstName L21

SYMATTR Type ind SYMATTR SpiceLine Ipk=20 Rser=0.32 Cpar=2pF SYMBOL nmos 624 112 R0 WINDOW 0 119 67 Left 2 WINDOW 3 88 102 Left 2 SYMATTR InstName Q1 SYMATTR Value Si9420DY SYMBOL res 656 272 R0 WINDOW 0 67 34 Left 2 WINDOW 3 65 68 Left 2 SYMATTR InstName R1 SYMATTR Value 0.1 SYMBOL res 128 -80 R0 WINDOW 0 -49 60 Left 2 WINDOW 3 -50 95 Left 2 SYMATTR InstName R2 SYMATTR Value 5K SYMBOL res 80 432 R90 WINDOW 0 -8 99 VBottom 2 WINDOW 3 -35 24 VTop 2 SYMATTR InstName R5 SYMATTR Value 50k SYMBOL cap -80 368 R180 WINDOW 0 -52 43 Left 2 WINDOW 3 -50 13 Left 2 SYMATTR InstName C2 SYMATTR Value 5n SYMBOL voltage -96 -64 R0 WINDOW 123 -220 84 Left 2 WINDOW 0 43 46 Left 2 WINDOW 3 46 77 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName Vin SYMATTR Value 24 SYMBOL res -32 -96 R270 WINDOW 0 -37 59 VTop 2 WINDOW 3 -39 58 VBottom 2 SYMATTR InstName Rin SYMATTR Value 1m SYMBOL cap 64 -224 R90 WINDOW 0 69 64 VBottom 2 WINDOW 3 41 8 VTop 2 SYMATTR InstName C4 SYMATTR Value 1 SYMBOL schottky 1664 0 R180 WINDOW 0 68 -16 Left 2 WINDOW 3 61 -55 Left 2 SYMATTR InstName D2 SYMATTR Value BAT46WJ SYMATTR Description Diode SYMATTR Type diode SYMBOL res 496 240 R90 WINDOW 0 68 52 VBottom 2 WINDOW 3 75 53 VTop 2 SYMATTR InstName R7 SYMATTR Value 2K SYMBOL cap 48 48 R90 WINDOW 0 60 70 VBottom 2 WINDOW 3 69 71 VTop 2 SYMATTR InstName C11

SYMBOL schottky 1728 -96 R270 WINDOW 0 -40 43 VTop 2 WINDOW 3 -58 38 VBottom 2 SYMATTR InstName D1 SYMATTR Value BAT46WJ SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 2032 -48 R0 WINDOW 0 57 48 Left 2 WINDOW 3 53 84 Left 2 SYMATTR InstName C6 SYMATTR Value 44n SYMBOL cap 368 48 R90 WINDOW 0 74 31 VBottom 2 WINDOW 3 77 32 VTop 2 SYMATTR InstName C7 SYMATTR Value 470p SYMBOL res 224 -80 R0 WINDOW 0 54 36 Left 2 WINDOW 3 56 72 Left 2 SYMATTR InstName R10 SYMATTR Value 200 SYMBOL res 1872 -80 R0 WINDOW 0 62 21 Left 2 WINDOW 3 60 56 Left 2 SYMATTR InstName R3 SYMATTR Value 2e6 SYMBOL cap 992 128 R0 WINDOW 0 73 17 Left 2 WINDOW 3 68 50 Left 2 SYMATTR InstName C1 SYMATTR Value 22n SYMBOL res 944 432 R90 WINDOW 0 -54 54 VBottom 2 WINDOW 3 -44 50 VTop 2 SYMATTR InstName R4 SYMATTR Value 96K SYMBOL res 304 432 R90 WINDOW 0 -9 95 VBottom 2 WINDOW 3 -36 21 VTop 2 SYMATTR InstName R6 SYMATTR Value 1K SYMBOL cap 1584 -128 R90 WINDOW 0 70 31 VBottom 2 WINDOW 3 78 29 VTop 2 SYMATTR InstName C3 SYMATTR Value 22n SYMBOL schottky 864 80 R270 WINDOW 0 -39 35 VTop 2 WINDOW 3 -43 35 VBottom 2 SYMATTR InstName D5 SYMATTR Value BAT46WJ SYMATTR Description Diode SYMATTR Type diode SYMBOL ind 288 -96 R270 WINDOW 0 83 60 VTop 2 WINDOW 3 74 57 VBottom 2 SYMATTR InstName Lleak SYMATTR Value 125n SYMBOL ind2 1424 448 R180 WINDOW 0 101 76 Right 2 WINDOW 3 110 38 Right 2 SYMATTR InstName L22

SYMATTR Type ind SYMATTR SpiceLine Ipk=20 Rser=0.32 Cpar=2pF SYMBOL schottky 1664 416 R180 WINDOW 0 68 -16 Left 2 WINDOW 3 61 -55 Left 2 SYMATTR InstName D3 SYMATTR Value BAT46WJ SYMATTR Description Diode SYMATTR Type diode SYMBOL schottky 1728 320 R270 WINDOW 0 -40 43 VTop 2 WINDOW 3 -58 38 VBottom 2 SYMATTR InstName D6 SYMATTR Value BAT46WJ SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 2032 368 R0 WINDOW 0 59 52 Left 2 WINDOW 3 55 84 Left 2 SYMATTR InstName C8 SYMATTR Value 44n SYMBOL res 1872 336 R0 WINDOW 0 62 21 Left 2 WINDOW 3 60 56 Left 2 SYMATTR InstName R8 SYMATTR Value 2e6 SYMBOL cap 1584 288 R90 WINDOW 0 70 31 VBottom 2 WINDOW 3 78 29 VTop 2 SYMATTR InstName C9 SYMATTR Value 22n SYMBOL ind2 2320 32 R180 WINDOW 0 101 76 Right 2 WINDOW 3 107 37 Right 2 SYMATTR InstName L23

SYMATTR Type ind SYMATTR SpiceLine Ipk=20 Rser=0.32 Cpar=2pF SYMBOL schottky 2560 0 R180 WINDOW 0 68 -16 Left 2 WINDOW 3 61 -55 Left 2 SYMATTR InstName D7 SYMATTR Value BAT46WJ SYMATTR Description Diode SYMATTR Type diode SYMBOL schottky 2624 -96 R270 WINDOW 0 -40 43 VTop 2 WINDOW 3 -58 38 VBottom 2 SYMATTR InstName D8 SYMATTR Value BAT46WJ SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 2928 -48 R0 WINDOW 0 49 59 Left 2 WINDOW 3 52 90 Left 2 SYMATTR InstName C10 SYMATTR Value 44n SYMBOL res 2768 -80 R0 WINDOW 0 62 21 Left 2 WINDOW 3 60 56 Left 2 SYMATTR InstName R9 SYMATTR Value 2e6 SYMBOL cap 2480 -128 R90 WINDOW 0 70 31 VBottom 2 WINDOW 3 78 29 VTop 2 SYMATTR InstName C12 SYMATTR Value 22n SYMBOL ind2 2320 448 R180 WINDOW 0 101 76 Right 2 WINDOW 3 112 37 Right 2 SYMATTR InstName L24

SYMATTR Type ind SYMATTR SpiceLine Ipk=20 Rser=0.32 Cpar=2pF SYMBOL schottky 2560 416 R180 WINDOW 0 68 -16 Left 2 WINDOW 3 61 -55 Left 2 SYMATTR InstName D9 SYMATTR Value BAT46WJ SYMATTR Description Diode SYMATTR Type diode SYMBOL schottky 2624 320 R270 WINDOW 0 -40 43 VTop 2 WINDOW 3 -58 38 VBottom 2 SYMATTR InstName D10 SYMATTR Value BAT46WJ SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 2928 368 R0 WINDOW 0 52 59 Left 2 WINDOW 3 55 90 Left 2 SYMATTR InstName C13 SYMATTR Value 44n SYMBOL res 2768 336 R0 WINDOW 0 62 21 Left 2 WINDOW 3 60 56 Left 2 SYMATTR InstName R11 SYMATTR Value 1e6 SYMBOL cap 2480 288 R90 WINDOW 0 70 31 VBottom 2 WINDOW 3 78 29 VTop 2 SYMATTR InstName C14 SYMATTR Value 22n SYMBOL ind2 544 -80 R0 WINDOW 0 -12 39 Right 2 WINDOW 3 -8 73 Right 2 SYMATTR InstName L2

SYMATTR Type ind SYMATTR SpiceLine Ipk=3.0 Rser=0.32 Cpar=1pF SYMBOL ind2 432 -80 R0 WINDOW 0 -17 37 Right 2 WINDOW 3 -13 71 Right 2 SYMATTR InstName L1

SYMATTR Type ind SYMATTR SpiceLine Ipk=3.0 Rser=0.32 Cpar=1pF SYMBOL ind2 768 -80 R0 WINDOW 0 -14 34 Right 2 WINDOW 3 -8 71 Right 2 SYMATTR InstName L4

SYMATTR Type ind SYMATTR SpiceLine Ipk=3.0 Rser=0.32 Cpar=1pF TEXT 1568 200 Left 2 !.tran 20m startup TEXT 888 -112 Left 2 ;4X Q4436-BL TEXT 376 424 Left 2 ;0.8V TEXT 712 248 Left 2 ;ZVN4424 TEXT 1568 160 Left 2 !.options reltol = 0.01 TEXT 896 -48 Left 2 ;Lp = 22 uH TEXT 928 -80 Left 2 ;1:2.5 TEXT 1920 16 Left 2 ;100 uA TEXT 2464 160 Left 2 ;200V Quad Isolated Supply TEXT 2488 208 Left 2 ;J Larkin Sep 11 2020 TEXT 1856 184 Left 2 ;use alternate solver TEXT 1720 16 Left 2 ;BAV23S TEXT 1920 432 Left 2 ;100 uA TEXT 1720 432 Left 2 ;BAV23S TEXT 2816 16 Left 2 ;100 uA TEXT 2616 16 Left 2 ;BAV23S TEXT 2816 432 Left 2 ;200 uA TEXT 2616 432 Left 2 ;BAV23S TEXT 1104 -80 Left 2 !K2 L2 L22 1 TEXT 1104 -48 Left 2 !K3 L3 L23 1 TEXT 1104 -16 Left 2 !K4 L4 L24 1 TEXT 1104 -112 Left 2 !K1 L1 L21 1 TEXT 896 -16 Left 2 ;Ll = 0.5 uH

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John Larkin         Highland Technology, Inc   trk 

The cork popped merrily, and Lord Peter rose to his feet.   
"Bunter", he said, "I give you a toast. The triumph of Instinct over Reason"
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