Guten Tag,
ich habe zwei Transistoren in LTSpice importiert. Einen NPN (U1) und
einen MOSFET (U2). Der Mosfet funktioniert ohne Probleme. Nur der
NPN(U1) macht Probleme. Ich finde den Fehler nicht, jemand eine Idee?
Folgende Fehlernachricht erhalte ich:
1 | WARNING: Node U1:E1 is floating.
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2 | WARNING: Less than two connections to node U1:C. This node is used by L:U1:C.
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3 | WARNING: Less than two connections to node U1:E1. This node is used by R:U1:E1.
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4 | WARNING: Less than two connections to node U1:E2. This node is used by R:U1:E2.
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5 | BJT model u1:m_bfr92p, parameter Fc limited to 0.9999Instance "m:u3:1": Width narrower than recommended for a level 3 MOSFET.
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6 | Direct Newton iteration for .op point succeeded.
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7 | Singular matrix: Check node u1:e
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8 | Iteration No. 1
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9 | Fatal Error: Singular matrix: check node u1:e
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10 | Iteration No. 1
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11 |
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12 | This circuit has floating nodes.
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kann aber beim importierten Transistor nichts feststellen.
Ersetze ich den U1 mit einen von LTSpice vorhandenen Transistor,
funktioniert die Simulation.
Hier noch die Spice-Datei des BF92P:
1 | ***************************************************************
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2 | * Infineon Technologies AG
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3 | * GUMMEL-POON MODEL IN SPICE 2G6 SYNTAX
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4 | * VALID UP TO 6 GHZ
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5 | * >>> BFR92P <<<
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6 | * (C) 2014 Infineon Technologies AG
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7 | * Version 3.0 March 2014
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8 | ***************************************************************
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9 | *.OPTION TNOM=25, GMIN= 1.00e-12
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10 | *BFR92P 11 22 33
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11 | .SUBCKT BFR92P 11 22 33
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12 |
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13 | CBEPAR 2 3 1.872E-013
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14 | CBCPAR 2 1 1.575E-013
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15 | CCEPAR 1 3 1.959E-013
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16 | LEI 3 30 1E-009
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17 | LBI 2 20 1E-009
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18 | CBEPCK 20 30 1.304E-014
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19 | CBCPCK 1 20 1.5E-013
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20 | CCEPCK 1 30 1.5E-013
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21 | LB 22 20 3E-010
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22 | LE 30 33 3E-010
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23 | LC 11 C 5.908E-010
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24 |
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25 |
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26 | RE1 E E1 1E-03
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27 | RE2 E E2 1E-03
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28 |
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29 | Q1 1 2 3 M_BFR92P
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30 |
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31 | .MODEL M_BFR92P NPN(
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32 | + IS = 2.241E-016
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33 | + BF = 127.2
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34 | + NF = 0.9935
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35 | + VAF = 55.34
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36 | + IKF = 0.1506
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37 | + ISE = 2.144E-015
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38 | + NE = 1.797
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39 | + BR = 10
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40 | + NR = 0.99
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41 | + VAR = 3.105
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42 | + IKR = 0.1135
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43 | + ISC = 4.7E-015
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44 | + NC = 2.001
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45 | + RB = 9.688
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46 | + IRB = 0.0001166
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47 | + RBM = 0.85
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48 | + RE = 0.9388
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49 | + RC = 4.925
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50 | + XTB = 1.303
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51 | + EG = 1.11
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52 | + XTI = 6.548
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53 | + CJE = 6.901E-013
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54 | + VJE = 0.9
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55 | + MJE = 0.4469
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56 | + TF = 1.95E-011
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57 | + XTF = 453.7
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58 | + VTF = 5.969
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59 | + ITF = 1.249
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60 | + PTF = 1E-015
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61 | + CJC = 2.394E-013
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62 | + VJC = 0.5764
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63 | + MJC = 0.3352
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64 | + XCJC = 0.1048
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65 | + TR = 5.53E-009
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66 | + CJS = 0
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67 | + MJS = 0
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68 | + VJS = 0.1
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69 | + FC = 1
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70 | + KF = 0
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71 | + AF = 1)
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72 | ***************************************************************
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73 |
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74 |
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75 | .ENDS BFR92P
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