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From: Klaus Vestergaard Kragelund <klauskvik@hotmail.com>
Newsgroups: sci.electronics.design
Subject: Re: P-channel MOSFET model
Date: Fri, 10 May 2024 10:11:38 +0200
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On 09-05-2024 08:54, piglet wrote:
> On 09/05/2024 02:21, Edward Rawde wrote:
>> "Bill Sloman" <bill.sloman@ieee.org> wrote in message
>> news:v1g1lq$kb1$1@dont-email.me...
>>> On 8/05/2024 10:03 pm, piglet wrote:
>>>> On 06/05/2024 06:58, Edward Rawde wrote:
>>>>> "John Larkin" <jjSNIPlarkin@highNONOlandtechnology.com> wrote in 
>>>>> message
>>>>> news:aesf3j1po3glh1c23se3lofoni6j7ol75m@4ax.com...
>>>>>> On Sun, 5 May 2024 14:42:30 -0400, "Edward Rawde"
>>>>>> <invalid@invalid.invalid> wrote:
>>>>>>> "Edward Rawde" <invalid@invalid.invalid> wrote in message
>>>>>>> news:v16s2i$2uv4$1@nnrp.usenet.blueworldhosting.com...
>>>>>>>> Does anyone know of a P-channel MOSFET, roughly equivalent to
>>>
>>> <snip>
>>>
>>> Cutting and pasting piglet's .asc file into my version of LTSpice gave a
>>> circuit that didn't do anything useful. M1 turns off after 2.67usec., 
>>> and
>>> that's it.
>>
>> It works for me but I'd like something more efficient if possible.
>>
>> My own latest creation does 5V 1A from 8V to 15V input but at 16V 
>> input it
>> stops and produces 16V so I'm not sure I'd trust this circuit in reality.
>> There is a character encoding issue which may affect the u symbol for
>> capacitors and inductors.
>> And line wraps may also need fixing.
>>
>> Version 4
>> SHEET 1 2820 680
>> WIRE 1200 -112 240 -112
>> WIRE 208 -48 176 -48
>> WIRE 240 -48 240 -112
>> WIRE 240 -48 208 -48
>> WIRE 288 -48 240 -48
>> WIRE 368 -48 288 -48
>> WIRE 672 -48 368 -48
>> WIRE 800 -48 768 -48
>> WIRE 816 -48 800 -48
>> WIRE 864 -48 816 -48
>> WIRE 992 -48 944 -48
>> WIRE 1088 -48 992 -48
>> WIRE 1408 -48 1088 -48
>> WIRE 1504 -48 1408 -48
>> WIRE 1680 -48 1504 -48
>> WIRE 1200 -32 1200 -112
>> WIRE 368 0 368 -48
>> WIRE 384 0 368 0
>> WIRE 480 0 448 0
>> WIRE 560 0 544 0
>> WIRE 992 16 992 -48
>> WIRE 176 32 176 -48
>> WIRE 688 32 688 0
>> WIRE 1200 64 1200 48
>> WIRE 1312 64 1200 64
>> WIRE 288 80 288 -48
>> WIRE 816 80 816 -48
>> WIRE 1312 80 1312 64
>> WIRE 1408 80 1408 -48
>> WIRE 1504 80 1504 -48
>> WIRE 384 96 368 96
>> WIRE 480 96 448 96
>> WIRE 560 96 560 0
>> WIRE 560 96 544 96
>> WIRE 1072 112 1040 112
>> WIRE 1120 112 1072 112
>> WIRE 1184 112 1120 112
>> WIRE 1200 112 1200 64
>> WIRE 1200 112 1184 112
>> WIRE 1680 112 1680 -48
>> WIRE 1184 160 1184 112
>> WIRE 1200 160 1200 112
>> WIRE 176 176 176 112
>> WIRE 1264 176 1232 176
>> WIRE 1312 176 1312 160
>> WIRE 1312 176 1264 176
>> WIRE 368 192 368 96
>> WIRE 384 192 368 192
>> WIRE 480 192 448 192
>> WIRE 576 192 544 192
>> WIRE 592 192 576 192
>> WIRE 672 192 656 192
>> WIRE 688 192 688 112
>> WIRE 688 192 672 192
>> WIRE 720 192 688 192
>> WIRE 736 192 720 192
>> WIRE 928 192 800 192
>> WIRE 1168 192 928 192
>> WIRE 1040 208 1040 112
>> WIRE 1120 208 1120 112
>> WIRE 1264 208 1232 208
>> WIRE 1408 208 1408 160
>> WIRE 1408 208 1264 208
>> WIRE 1504 208 1504 160
>> WIRE 1504 208 1408 208
>> WIRE 576 224 576 192
>> WIRE 672 224 672 192
>> WIRE 1312 224 1312 176
>> WIRE 1408 224 1408 208
>> WIRE 176 336 176 256
>> WIRE 288 336 288 144
>> WIRE 288 336 176 336
>> WIRE 576 336 576 304
>> WIRE 576 336 288 336
>> WIRE 672 336 672 304
>> WIRE 672 336 576 336
>> WIRE 816 336 816 144
>> WIRE 816 336 672 336
>> WIRE 992 336 992 80
>> WIRE 992 336 816 336
>> WIRE 1040 336 1040 272
>> WIRE 1040 336 992 336
>> WIRE 1120 336 1120 272
>> WIRE 1120 336 1040 336
>> WIRE 1184 336 1184 224
>> WIRE 1184 336 1120 336
>> WIRE 1200 336 1200 224
>> WIRE 1200 336 1184 336
>> WIRE 1216 336 1216 224
>> WIRE 1216 336 1200 336
>> WIRE 1312 336 1312 304
>> WIRE 1312 336 1216 336
>> WIRE 1408 336 1408 304
>> WIRE 1408 336 1312 336
>> WIRE 1680 336 1680 192
>> WIRE 1680 336 1408 336
>> WIRE 176 352 176 336
>> FLAG 176 352 0
>> FLAG 208 -48 in
>> FLAG 720 192 gate
>> FLAG 1264 176 cmp-
>> FLAG 1264 208 cmp+
>> FLAG 928 192 cmpout
>> FLAG 1072 112 cmp5v
>> FLAG 1088 -48 out
>> FLAG 800 -48 sw
>> SYMBOL Comparators\\LT1719 1200 128 M0
>> WINDOW 0 27 27 Left 2
>> WINDOW 3 -92 6 Left 2
>> SYMATTR InstName U1
>> SYMBOL res 1328 208 M0
>> WINDOW 0 -35 36 Left 2
>> WINDOW 3 -49 70 Left 2
>> SYMATTR InstName R2
>> SYMATTR Value 10K
>> SYMATTR SpiceLine tol=1 pwr=0.1
>> SYMBOL ind 960 -64 R90
>> WINDOW 0 63 51 VBottom 2
>> WINDOW 3 -27 53 VTop 2
>> SYMATTR InstName L1
>> SYMATTR Value 100µ
>> SYMATTR SpiceLine Ipk=1.3 Rser=0.15 Rpar=0 Cpar=0 mfg="Murata"
>> pn="MDH10060C-101MA=P3"
>> SYMBOL res 1664 96 R0
>> WINDOW 0 40 39 Left 2
>> WINDOW 3 39 70 Left 2
>> SYMATTR InstName R4
>> SYMATTR Value 5
>> SYMATTR SpiceLine tol=1 pwr=0.1
>> SYMBOL res 1424 64 M0
>> WINDOW 0 -38 43 Left 2
>> WINDOW 3 -48 70 Left 2
>> SYMATTR InstName R3
>> SYMATTR Value 10K
>> SYMATTR SpiceLine tol=1 pwr=0.1
>> SYMBOL schottky 832 144 R180
>> WINDOW 0 42 31 Left 2
>> WINDOW 3 -123 30 Left 2
>> SYMATTR InstName D2
>> SYMATTR Value MBRS130L
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