J
John Larkin
Guest
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 Value 22µ
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 Value 137µ
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
SYMATTR Value 1µ
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 Value 137µ
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 Value 137µ
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 Value 137µ
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 Value 22µ
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 Value 22µ
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 Value 22µ
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
--
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\"
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 Value 22µ
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 Value 137µ
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
SYMATTR Value 1µ
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 Value 137µ
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 Value 137µ
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 Value 137µ
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 Value 22µ
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 Value 22µ
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 Value 22µ
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
--
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\"