[分享]三极管的Pspice模型参数

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<p align="center"><b>附件</b><b>A</b><b>、三极管的</b><b>Pspice</b><b>模型参数</b><b></b></p><br/><br/>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; .Model&nbsp; &lt;model name&gt; NPN(PNP、LPNP) [model parameters]</p><br/>
<table cellspacing="0" cellpadding="0" border="1">
<tbody>
<tr>
<td valign="top" width="112">
<p align="center"><b>模型参数</b><b></b></p></td>
<td valign="top" width="301">
<p align="center">含&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 义</p></td>
<td valign="top" width="84">
<p align="center">单&nbsp;&nbsp;&nbsp; 位</p></td>
<td valign="top" width="84">
<p align="center">默认值</p></td>
<td valign="top" width="406">
<p align="center">备&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 注</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>AF </b></p></td>
<td valign="top" width="301">
<p>flicker noise exponent </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">1.0</p></td>
<td valign="top" width="406">
<p>噪声指数</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>BF</b></p></td>
<td valign="top" width="301">
<p>ideal maximum forward beta </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">100.0</p></td>
<td valign="top" width="406">
<p>最大正向放大倍数</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>BR</b></p></td>
<td valign="top" width="301">
<p>ideal maximum reverse beta </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">1.0</p></td>
<td valign="top" width="406">
<p>最大反向放大倍数</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>CJC</b></p></td>
<td valign="top" width="301">
<p>base-collector zero-bias p-n capacitance</p></td>
<td valign="top" width="84">
<p align="center">farad</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406">
<p>集电结电容</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>CJE</b></p></td>
<td valign="top" width="301">
<p>base-emitter zero-bias p-n capacitance</p></td>
<td valign="top" width="84">
<p align="center">farad</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406">
<p>发射结电容</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>CJS (CCS) </b></p></td>
<td valign="top" width="301">
<p>Substrate zero-bias p-n capacitance </p></td>
<td valign="top" width="84">
<p align="center">farad</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>EG </b></p></td>
<td valign="top" width="301">
<p>bandgap voltage (barrier height) </p></td>
<td valign="top" width="84">
<p align="center">eV</p></td>
<td valign="top" width="84">
<p align="center">1.11</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>FC</b></p></td>
<td valign="top" width="301">
<p>forward-bias depletion capacitor coefficient </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">0.5</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>GAMMA </b></p></td>
<td valign="top" width="301">
<p>epitaxial region doping factor </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">1E-11</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>IKF (IK) </b></p></td>
<td valign="top" width="301">
<p>corner for forward-beta high-current roll-off</p></td>
<td valign="top" width="84">
<p align="center">amp</p></td>
<td valign="top" width="84">
<p align="center">infinite</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>IKR </b></p></td>
<td valign="top" width="301">
<p>corner for reverse-beta high-current roll-off</p></td>
<td valign="top" width="84">
<p align="center">amp</p></td>
<td valign="top" width="84">
<p align="center">infinite</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>IRB </b></p></td>
<td valign="top" width="301">
<p>current at which Rb falls halfway to </p></td>
<td valign="top" width="84">
<p align="center">amp</p></td>
<td valign="top" width="84">
<p align="center">infinite</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>IS </b></p></td>
<td valign="top" width="301">
<p>transport saturation current</p></td>
<td valign="top" width="84">
<p align="center">amp</p></td>
<td valign="top" width="84">
<p align="center">1E-16</p></td>
<td valign="top" width="406">
<p>饱和电流</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>ISC (C4) </b></p></td>
<td valign="top" width="301">
<p>base-collector leakage saturation current</p></td>
<td valign="top" width="84">
<p align="center">amp</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406">
<p>集电结漏电流</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>ISE (C2)</b></p></td>
<td valign="top" width="301">
<p>base-emitter leakage saturation current</p></td>
<td valign="top" width="84">
<p align="center">amp</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406">
<p>发射结漏电流</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>ISS </b></p></td>
<td valign="top" width="301">
<p>substrate p-n saturation current </p></td>
<td valign="top" width="84">
<p align="center">amp</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>ITF</b></p></td>
<td valign="top" width="301">
<p>transit time dependency on Ic </p></td>
<td valign="top" width="84">
<p align="center">amp</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>KF </b></p></td>
<td valign="top" width="301">
<p>flicker noise coefficient </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406">
<p>噪声系数</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>MJC (MC) </b></p></td>
<td valign="top" width="301">
<p>base-collector p-n grading factor</p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">0.33</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>MJE (ME) </b></p></td>
<td valign="top" width="301">
<p>base-emitter p-n grading factor </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">0.33</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>MJS (MS) </b></p></td>
<td valign="top" width="301">
<p>substrate p-n grading factor</p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>NC</b></p></td>
<td valign="top" width="301">
<p>base-collector leakage emission coefficient </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">2.0</p></td>
<td valign="top" width="406">
<p>集电结漏电系数</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>NE </b></p></td>
<td valign="top" width="301">
<p>base-emitter leakage emission coefficient</p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">1.5</p></td>
<td valign="top" width="406">
<p>发射结漏电系数</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>NF </b></p></td>
<td valign="top" width="301">
<p>forward current emission coefficient </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">1.0</p></td>
<td valign="top" width="406">
<p>正向电流系数</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>NK</b></p></td>
<td valign="top" width="301">
<p>high-current roll-off coefficient </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">0.5</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>NR</b></p></td>
<td valign="top" width="301">
<p>reverse current emission coefficient</p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">1.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>NS</b></p></td>
<td valign="top" width="301">
<p>substrate p-n emission coefficient </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">1.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>PTF </b></p></td>
<td valign="top" width="301">
<p>excess phase @ 1/(2p?TF)Hz </p></td>
<td valign="top" width="84">
<p align="center">degree</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>QCO</b></p></td>
<td valign="top" width="301">
<p>epitaxial region charge factor </p></td>
<td valign="top" width="84">
<p align="center">coulomb</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>RB</b></p></td>
<td valign="top" width="301">
<p>zero-bias (maximum) base resistance</p></td>
<td valign="top" width="84">
<p align="center">ohm</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406">
<p>最大基极电阻</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>RBM</b></p></td>
<td valign="top" width="301">
<p>minimum base resistance </p></td>
<td valign="top" width="84">
<p align="center">ohm</p></td>
<td valign="top" width="84">
<p align="center"><b>RB</b></p></td>
<td valign="top" width="406">
<p>最小基极电阻</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>RC</b></p></td>
<td valign="top" width="301">
<p>collector ohmic resistance</p></td>
<td valign="top" width="84">
<p align="center">ohm</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>RCO </b></p></td>
<td valign="top" width="301">
<p>epitaxial region resistance </p></td>
<td valign="top" width="84">
<p align="center">ohm</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>RE </b></p></td>
<td valign="top" width="301">
<p>emitter ohmic resistance </p></td>
<td valign="top" width="84">
<p align="center">ohm</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>TF </b></p></td>
<td valign="top" width="301">
<p>ideal forward transit time </p></td>
<td valign="top" width="84">
<p align="center">sec</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406">
<p>正向传递时间</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>TR</b></p></td>
<td valign="top" width="301">
<p>ideal reverse transit time</p></td>
<td valign="top" width="84">
<p align="center">sec </p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406">
<p>反向传递时间</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>TRB1</b></p></td>
<td valign="top" width="301">
<p>RB temperature coefficient (linear) </p></td>
<td valign="top" width="84">
<p align="center">⁰C ^-1</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406">
<p>RB的温度系数</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>TRB2 </b></p></td>
<td valign="top" width="301">
<p>RB temperature coefficient (quadratic) </p></td>
<td valign="top" width="84">
<p align="center">⁰C ^-2</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>TRC1 </b></p></td>
<td valign="top" width="301">
<p>RC temperature coefficient (linear) </p></td>
<td valign="top" width="84">
<p align="center">⁰C ^-1</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>TRC2</b></p></td>
<td valign="top" width="301">
<p>RC temperature coefficient (quadratic)</p></td>
<td valign="top" width="84">
<p align="center">⁰C ^-2</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>TRE1 </b></p></td>
<td valign="top" width="301">
<p>RE temperature coefficient (linear) </p></td>
<td valign="top" width="84">
<p align="center">⁰C ^-1</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>TRE2 </b></p></td>
<td valign="top" width="301">
<p>RE temperature coefficient (quadratic) </p></td>
<td valign="top" width="84">
<p align="center">⁰C ^-2</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>TRM1 </b></p></td>
<td valign="top" width="301">
<p>RBM temperature coefficient (linear) </p></td>
<td valign="top" width="84">
<p align="center">⁰C ^-1</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>TRM2</b></p></td>
<td valign="top" width="301">
<p>RBM temperature coefficient (quadratic) </p></td>
<td valign="top" width="84">
<p align="center">⁰C ^-2</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>T_ABS </b></p></td>
<td valign="top" width="301">
<p>absolute temperature </p></td>
<td valign="top" width="84">
<p align="center">⁰C </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>T_MEASURED </b></p></td>
<td valign="top" width="301">
<p>measured temperature </p></td>
<td valign="top" width="84">
<p align="center">⁰C </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>T_REL_GLOBAL </b></p></td>
<td valign="top" width="301">
<p>relative to current temperature </p></td>
<td valign="top" width="84">
<p align="center">⁰C </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>T_REL_LOCAL</b></p></td>
<td valign="top" width="301">
<p>relative to AKO model temperature</p></td>
<td valign="top" width="84">
<p align="center">⁰C </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>VAF (VA)</b></p></td>
<td valign="top" width="301">
<p>forward Early voltage </p></td>
<td valign="top" width="84">
<p align="center">volt</p></td>
<td valign="top" width="84">
<p align="center">infinite</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>VAR (VB) </b></p></td>
<td valign="top" width="301">
<p>reverse Early voltage </p></td>
<td valign="top" width="84">
<p align="center">volt</p></td>
<td valign="top" width="84">
<p align="center">infinite</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>VJC (PC) </b></p></td>
<td valign="top" width="301">
<p>base-collector built-in potential </p></td>
<td valign="top" width="84">
<p align="center">volt</p></td>
<td valign="top" width="84">
<p align="center">0.75</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>VJE (PE) </b></p></td>
<td valign="top" width="301">
<p>base-emitter built-in potential </p></td>
<td valign="top" width="84">
<p align="center">volt</p></td>
<td valign="top" width="84">
<p align="center">0.75</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>VJS (PS) </b></p></td>
<td valign="top" width="301">
<p>substrate p-n built-in potential </p></td>
<td valign="top" width="84">
<p align="center">volt</p></td>
<td valign="top" width="84">
<p align="center">0.75</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>VO </b></p></td>
<td valign="top" width="301">
<p>carrier mobility knee voltage </p></td>
<td valign="top" width="84">
<p align="center">volt</p></td>
<td valign="top" width="84">
<p align="center">10.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>VTF</b></p></td>
<td valign="top" width="301">
<p>transit time dependency on Vbc</p></td>
<td valign="top" width="84">
<p align="center">volt</p></td>
<td valign="top" width="84">
<p align="center">infinite</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>XCJC </b></p></td>
<td valign="top" width="301">
<p>fraction of <b>CJC </b>connected internally to Rb </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">1.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>XCJC2</b></p></td>
<td valign="top" width="301">
<p>fraction of <b>CJC </b>connected internally to Rb </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">1.0</p></td>
<td valign="top" width="406"><br/></td></tr>
<tr>
<td valign="top" width="112">
<p><b>XTB </b></p></td>
<td valign="top" width="301">
<p>forward and reverse beta temperature coefficient </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406">
<p>正向和反向放大倍数的温度影响系数</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>XTF</b></p></td>
<td valign="top" width="301">
<p>transit time bias dependence coefficient </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">0.0</p></td>
<td valign="top" width="406">
<p>传递时间系数</p></td></tr>
<tr>
<td valign="top" width="112">
<p><b>XTI (PT) </b></p></td>
<td valign="top" width="301">
<p>IS temperature effect exponent </p></td>
<td valign="top" width="84">
<p align="center">&nbsp;</p></td>
<td valign="top" width="84">
<p align="center">3.0</p></td>
<td valign="top" width="406">
<p>IS的温度影响系数</p></td></tr></tbody></table><br/><br/>
<p>附件B、 PSpice Goal Function</p><br/>
<table cellspacing="0" cellpadding="0" border="1">
<tbody>
<tr>
<td valign="top" width="259">
<p align="center"><b>特征函数</b><b></b></p></td>
<td valign="top" width="707">
<p align="center"><b>功能说明</b><b></b></p></td></tr>
<tr>
<td valign="top" width="259">
<p>Bandwidth (1, db_level)</p></td>
<td valign="top" width="707">
<p>计算波形1从最大值下降db_level db的波形宽度。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>BPBW (1, db_level)</p></td>
<td valign="top" width="707">
<p>&nbsp;&nbsp; Same as Bandwidth (1, db_level)</p></td></tr>
<tr>
<td valign="top" width="259">
<p>CenteRFreq (1, db_level) </p></td>
<td valign="top" width="707">
<p>计算波形1从最大值下降db_level db的两点的中心频率。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>Falltime (1)</p></td>
<td valign="top" width="707">
<p>计算波形1的下降时间。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>Gain Margin (1,2)</p></td>
<td valign="top" width="707">
<p>计算波形1的相位为-180^。时，波形2的分贝值。&nbsp; </p></td></tr>
<tr>
<td valign="top" width="259">
<p>GenFall (1)</p></td>
<td valign="top" width="707">
<p>类似于Falltime (1)，但它的下降时间相对的y轴是起点于终点，而不是最大值与最小值。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>GenRise (1)</p></td>
<td valign="top" width="707">
<p>与GenFall (1)类似，只是它是上升时间。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>HPBW (1, db_level)</p></td>
<td valign="top" width="707">
<p>查找第一次比最大值低db_level db的x坐标。（上升沿）</p></td></tr>
<tr>
<td valign="top" width="259">
<p>LPBW (1, db_level) </p></td>
<td valign="top" width="707">
<p>与HPBW类似，只是用于下降沿。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>Maxr (1, begin-x, end-x)</p></td>
<td valign="top" width="707">
<p>查找区间的最大值。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>Overshoot (1)</p></td>
<td valign="top" width="707">
<p>计算最大值与终点之间y轴坐标差与终点值的百分比。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>Peak (1, n_occur)</p></td>
<td valign="top" width="707">
<p>查找第n-occur个峰值点的Y值</p></td></tr>
<tr>
<td valign="top" width="259">
<p>Period (1)</p></td>
<td valign="top" width="707">
<p>计算波形1的周期。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>Phase Margin (1,2)</p></td>
<td valign="top" width="707">
<p>查找波形1在0分贝时波形2的相位。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>Pulsewidth (1)</p></td>
<td valign="top" width="707">
<p>计算波形1的脉冲宽度。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>Risetime (1)</p></td>
<td valign="top" width="707">
<p>计算波形1的上升时间。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>Swingr (1, begin-x, end-x) </p></td>
<td valign="top" width="707">
<p>计算在指定范围内，波形1的最大值与最小值之差。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>TPmW2 (1, Period)</p></td>
<td valign="top" width="707"><br/></td></tr>
<tr>
<td valign="top" width="259">
<p>XatNthy (1, Y-value, n-occur)</p></td>
<td valign="top" width="707">
<p>查找波形1上第n-occur个Y-value值时的X坐标值。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>XatNthYn(1,Y_value,n_occur)</p></td>
<td valign="top" width="707">
<p>与XatNthy类似，但它查找的Y值必须在下降沿上。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>XatNthYp(1,Y_value,n_occur)</p></td>
<td valign="top" width="707">
<p>与XatNthy类似，但它查找的Y值必须在上升沿上。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>XatNthYpct(1,Y_PCT,n_occur)</p></td>
<td valign="top" width="707">
<p>查找第n-occur个Y轴值为Y轴范围的Y_pct%时的X轴值。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>YatX(1,X_value)</p></td>
<td valign="top" width="707">
<p>查找X-value值处的Y值。</p></td></tr>
<tr>
<td valign="top" width="259">
<p>YatXpct(1,X_pct)</p></td>
<td valign="top" width="707">
<p>查找X轴值为X轴范围的X_pct%时的Y轴值。</p></td></tr></tbody></table><br/>
<h2>附件C</h2>
<h2>Modeling voltage-controlLED and temperature-dependent resistors</h2>
<p>analog Behavioral Modeling (ABM) can be used to model a nonlinear resistor through use of Ohm抯 law and tables and expressions which describe resistance. Here are some examples.</p>
<div align="left">
<hr align="left" width="100%" color="#336699" noShade="noShade"  size="2"/>
</div>
<h3>Voltage-controlled resistor</h3>
<p>IF a Resistance vs. Voltage curve is available, a look-up table can be used in the ABM expression. This table contains (Voltage, Resistance) pairs picked from points on the curve. The voltage input is nonlinearly mapped from the voltage values in the table to the resistance values. Linear interpolation is used between table values.</p>
<p>Let抯 say that points picked from a Resistance vs. Voltage curve are:</p>
<div align="center">
<table cellpadding="0" width="400" border="0">
<tbody>
<tr>
<td width="200">
<p>Voltage</p></td>
<td width="200">
<p>Resistance</p></td></tr>
<tr>
<td width="200">
<p>0.5</p></td>
<td width="200">
<p>25</p></td></tr>
<tr>
<td width="200">
<p>1.0</p></td>
<td width="200">
<p>50</p></td></tr>
<tr>
<td width="200">
<p>2.0</p></td>
<td width="200">
<p>100</p></td></tr></tbody></table></div>
<p>The ABM expression for this is shown in <a href="https://bbs.elecfans.com/pspice_acticletn%22%20l%20">Figure 1</a>.</p>
<p align="center"></p>
<p>Figure 1 - Voltage controlled resistor using look-up table</p><br/><br/><br/>
<h3>Temperature-dependent resistor</h3>
<p>A temperature-dependent resistor (or thermistor) can be modeled with a look-up table, or an expression can be used to describe how the resistance varies with temperature. The denominator in the expression in <a href="https://bbs.elecfans.com/pspice_acticletn%22%20l%20">Figure 2</a> is used to describe common thermistors. The TEMP variable in the expression is the simulation temperature, in Celsius. This is then converted to Kelvin by adding 273.15. This step is necessary to avoid a divide by zero problem in the denominator, when T=0 C.</p>
<p>NOTE: TEMP can only be used in ABM expressions (E, G devices).</p>
<p><a href="https://bbs.elecfans.com/pspice_acticletn%22%20l%20">Figure 3</a> shows the results of a DC sweep of temperature from -40 to 60 C. The y-axis shows the resistance or V(I1:-)/1A.</p>
<p align="center"></p>
<p>Figure 2 - Temperature controlled resistor</p>
<p align="center"></p>
<p>Figure 3 - PSpice plot of Resistance vs. Temperature (current=1A)</p>
<h3>Variable Q RLC network</h3>
<p>In most circuits the value of a resistor is fixed during a simulation. While the value can be made to change for a set of simulations by using a Parametric Sweep to move through a fixed sequence of values, a voltage-controlled resistor can be made to change dynamically during a simulation. This is illustrated by the circuit shown in <a href="https://bbs.elecfans.com/pspice_acticletn%22%20l%20">Figure 5</a>, which employs a voltage-controlled resistor. </p>
<p align="center"></p>
<p>Figure 4 - Parameter sweep of control voltage</p>
<p>This circuit employs an external reference component that is sensed. The output impedance equals the value of the control voltage times the reference. Here, we will use Rref, a 50 ohm resistor as our reference. As a result, the output impedance is seen by the circuit as a floating resistor equal to the value of V(Control) times the resistance value of Rref. In our circuit, the control voltage value is stepped from 0.5 volt to 2 volts in 0.5 volt steps, therefore, the resistance between nodes 3 and 0 varies from 25 ohms to 100 ohms in 25 ohm-steps.</p>
<p align="center"></p>
<p>Figure 5 - Variable Q RLC circuit</p>
<p>A transient analysis of this circuit using a 0.5 ms wide pulse will show how the ringing differs as the Q is varied.</p>
<p>Using Probe, we can observe how the ringing varies as the resistance changes. <a href="https://bbs.elecfans.com/pspice_acticletn%22%20l%20">Figure 6</a> shows the input pulse and the voltage across the capacitor C1. Comparing the four output waveforms, we can see the most pronounced ringing occurs when the resistor has the lowest value and the Q is greatest. Any signal source can be used to drive the voltage-controlled resistance. If we had used a sinusoidal control source instead of a staircase, the resistance would have varied dynamically during the simulation.</p>
<p align="center"></p>
<p>Figure 6 - Output waveforms of variable Q RLC circuit</p><br/></span></b>