error in LTSpice III...Can't find definition of model.....

Hello,

I am trying to simulate BUZ272 in LTSpice, here is my buz272.mod file

******* *p-MOSFET*100V 15A 0.3mOhm*Add_in_Line SUBCKT BUZ-272 1 2 3 LS 5 2 7N LD 86 3 5N RG 4 95 9.6 RS 5 76 56M D272 86 76 DREV MODEL DREV D CJO=1.7N RS=20M TT=180N IS=300P BV=100 M272 102 95 76 76 MBUZ MODEL MBUZ PMOS VTO=-3.149 KP=1.761 M2 11 102 8 8 MSW MODEL MSW PMOS VTO=-0.001 KP=.5 M3 102 11 8 8 MSW COX 11 8 700P DGD 102 8 DCGD MODEL DCGD D CJO=692P M=0.659 VJ=1.029 CGS 76 95 2N VGC 11 95 -10
  • BESCHREIBT EINE IMPLANTIERTE LADUNG (VERSCHIEBT DIE EINSATZSPANNUNG) MHELP 86 102 102 102 MVRD MODEL MVRD PMOS VTO=13 KP=0.8 LG 4 1 7N ENDS

And this is my buz272.asy, modified from on of the existing pmos models: Version 4 SymbolType CELL LINE Normal 48 48 48 96 LINE Normal 16 80 48 80 LINE Normal 16 48 24 48 LINE Normal 48 48 24 44 LINE Normal 48 48 24 52 LINE Normal 24 44 24 52 LINE Normal 16 8 16 24 LINE Normal 16 40 16 56 LINE Normal 16 72 16 88 LINE Normal 0 80 8 80 LINE Normal 8 16 8 80 LINE Normal 48 16 16 16 LINE Normal 48 0 48 16 WINDOW 0 56 32 Left 0 WINDOW 3 56 72 Left 0 SYMATTR Value BUZ-272 SYMATTR Prefix MP SYMATTR SpiceModel C:\\Programme\\SwCADIII\\lib\\sym\\buz272.mod SYMATTR Description P-Channel MOSFET transistor PIN 0 80 NONE 0 PINATTR PinName G PINATTR SpiceOrder 1 PIN 48 96 NONE 0 PINATTR PinName S PINATTR SpiceOrder 2 PIN 48 0 NONE 0 PINATTR PinName D PINATTR SpiceOrder 3

When I use this component in LTSpice, I get the error "Can't find definition of model "c:\\programme\\swcadiii\\lib\\sym\\buz272.mod"

Does anybody know what's wrong?

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Reply to
Elk
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.SUBCKT BUZ-272 1 2 3 RG 4 95 9.6

.ENDS

Reply to
Jim Thompson

The dots are there. I tried to create the *.mod and *.asy new. But it is the same error.

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Reply to
Elk

Hello Elk,

The Prefix in the symbol should be X, because it's a subcircuit model.

SYMATTR Prefix MP

-->

SYMATTR Prefix X

Normally you should set the X in the symbol editor of course.

I have sent you an example with a specific symbol for the BUZ272. If your email-address doesn't work, please send me a valid email-address.

Either keep the model file in the directory of the schematic or in the LTspice folder ...\\Swcadiii\\lib\\sub\\ You could also make a universal symbol for all subcircuit-Mosfets with the pin-order G, S, D.

There is a large user group for LTspice.

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Best regards, Helmut

"Elk" schrieb im Newsbeitrag news: snipped-for-privacy@localhost.talkaboutelectronicequipment.com...

Reply to
Helmut Sennewald

Hello,

thank you very much. I got the email. It works fine know!

Thank You!

Best regards, Sven

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Reply to
Elk

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