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Schematic? Test points?

Here is a listing from an old DOS Spice file. How do i get LTSpice to show the schematic, so that i can probe,etc?

VREF+MOSFET reg (25V ref)

*.OPTIONS ACCT LIST NODE OPTS NUMDGT=6 RELTOL=0.00001 NOPAGE .TEMP 25 .DC V1 -50 50 1 V1 4 0 DC 180V ;Vreg R1 3 1 7.87MEG ;for Vref 25V appx R2 4 3 412K ;3uA at 1.24V VR 0 1 0.0V ; ground current sense
  • + FB - X3 4 3 1 LM285ADJ .PRINT DC I(VR) V(3) V(4) .PLOT DC I(VR) V(3) V(4)

.SUBCKT LM285ADJ 1 2 3 ; 1=+ cathode, 2=FB, 3=- anode ISINK 0 81 5UA RSINK 81 0 1E15 ; dummy - get +V term 81 rel term 0 VREF 82 81 1.24V ; vary this +/- 1% VP 83 0 15V VN 84 0 -15V

  • C B E SUB Q1 82 85 0 0 QN2222 RA 3 0 1E-6OHM RC 1 82 1E-6OHM X1 81 2 83 84 85 TL031 .ENDS LM285ADJ

.MODEL QN2222 NPN(

  • IS= 2.560E-14 BF= 200. NE= 2.00 IKF= .560
  • BR= 5.00 NC= 2.00 ISE= 1.280E-11
  • RB= 10.0 RC= .500 ISC= 1.280E-11
  • CJE= 2.500E-11 TF= 5.333E-10 CJC= 8.000E-12 TR= 4.000E-08)

  • TL031 operational amplifier "macromodel" subcircuit

  • n.i. input inverting input
  • | | positive power supply
  • | | | negative power supply
  • | | | | v--output .subckt TL031 1 2 3 4 5
  • c1 11 12 3.498E-12 c2 6 7 15.00E-12 css 10 99 11.38E-12 dc 5 53 dx de 54 5 dx dlp 90 91 dx dln 92 90 dx dp 4 3 dx egnd 99 0 poly(2) (3,0) (4,0) 0 .5 .5 fb 7 99 poly(5) vb vc ve vlp vln 0 936.5E3 -900E3 900E3 900E3 -900E3 ga 6 0 11 12 113.1E-6 gcm 0 6 10 99 2.257E-9 iss 3 10 dc 76.50E-6 hlim 90 0 vlim 1K j1 11 2 10 jx j2 12 1 10 jx r2 6 9 100.0E3 rd1 4 11 8.841E3 rd2 4 12 8.841E3 ro1 8 5 135 ro2 7 99 135 rp 3 4 138.5E3 rss 10 99 2.614E6 vb 9 0 dc 0 vc 3 53 dc 1.700 ve 54 4 dc 1.800 vlim 7 8 dc 0 vlp 91 0 dc 8 vln 0 92 dc 8 .model dx D(Is=800.0E-18) .model jx PJF(Is=1.000E-12 Beta=140e-6 Vto=-1) .ends TL031

.END

Reply to
Robert Baer
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I've heard rumors of a program that can draw schematics from a netlist... at about $100K cost... buy me one while you're at it >:-}

Just draw it yourself from the netlist... there are only 5 components and I've marked beginning and end of the netlist... the rest of the listing is device library calls.

*** Netlist begins here
*** Netlist ends here

...Jim Thompson

--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142     Skype: skypeanalog  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
I love to cook with wine.     Sometimes I even put it in the food.
Reply to
Jim Thompson

Thanks. So Spice is not Spice is not Spice..

Reply to
Robert Baer

You, and many others here, need to read up a little and develop some understanding of the difference between schematic files (*.sch or

*.asc), symbol files (*.slb, *.sym or *.asy), netlists (*.net), circuit files (*.cir) and device libraries (*.lib, *.mod, *.sub).

What you posted is mostly libraries. Hand draw out the portion I indicated for the "schematic). ...Jim Thompson

--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142     Skype: skypeanalog  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
I love to cook with wine.     Sometimes I even put it in the food.
Reply to
Jim Thompson

That works; thanx.

Reply to
Robert Baer

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