📄 霍尔元件.htm
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<P class=MsoNormal style="TEXT-ALIGN: center"
align=center>CS<FONT color=#008000><STRONG><SPAN lang=EN-US><A
href="http://www.sldzc.cn/new_page_174.htm">CS3075</A></SPAN></STRONG></FONT></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><SPAN lang=en-us><FONT color=#008000><B><A
href="http://www.sldzc.cn/cs41.htm">CS41</A></B></FONT></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><B><FONT color=#008000>进口SS41 </FONT></B>
<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><FONT color=#ff0000><B>4</B></FONT><B><FONT
color=#ff0000>元</FONT><FONT color=#008000> </FONT></B><SPAN
lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体"><O:P></O:P></SPAN></P></TD>
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<P class=MsoNormal align=center><SPAN lang=en-us><FONT
color=#008000><B>CS3175</B></FONT></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><FONT color=#008000> </FONT><SPAN
lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体"><O:P></O:P></SPAN></P></TD></TR>
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<P style="TEXT-ALIGN: center" align=center><FONT
color=#008000><B><SPAN
style="FONT-SIZE: 10pt">线型霍尔元件</SPAN></B></FONT></P></TD>
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<P align=center><FONT color=#ff0000><STRONG><SPAN
lang=EN-US> 3元</SPAN></STRONG></FONT></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><FONT color=#008000><A
href="http://www.sldzc.cn/new_page_174.htm"><B><SPAN
lang=EN-US>CS350</SPAN></B></A></FONT><FONT
color=#008000><B><A
href="http://www.sldzc.cn/new_page_174.htm"><SPAN
lang=en-us>3</SPAN></A></B></FONT><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体"><O:P></O:P></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><B><FONT color=#008000>进口</FONT></B><FONT
color=#008000><B><SPAN lang=EN-US>A3503</SPAN></B></FONT>
<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><B><FONT color=#ff0000>4元</FONT></B></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><B><SPAN
style="FONT-SIZE: 10pt; COLOR: maroon; FONT-FAMILY: 宋体"><FONT
color=#008000>齿轮传感器</FONT></SPAN></B><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体"><O:P></O:P></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><FONT color=#008000><B><SPAN
lang=EN-US>A3046</SPAN></B></FONT><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体"><O:P></O:P></SPAN></P></TD>
<TD class=未命名1
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<P class=MsoNormal style="TEXT-ALIGN: center"
align=center><FONT color=#008000><B><SPAN
lang=EN-US>A3056</SPAN></B></FONT><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体"><O:P></O:P></SPAN></P></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
<P align=center><B><FONT color=#808000
size=2>接线：一般情况下1脚输入，2脚接地，3脚输出。面对霍尔元件，管脚向下，左边为1脚，中间为2，右边为3。</FONT></B></P>
<P align=center><SPAN class=未命名1><FONT face=隶书 color=#008000 size=5><A
href="http://www.sldzc.cn/new_page_172.htm">霍尔器件应用产品介绍</A></FONT></SPAN></P>
<P align=right><SPAN class=未命名1><FONT face=隶书
size=5>霍</FONT></SPAN><B><FONT face=隶书 color=#ff0000 size=4><A
href="http://www.sldzc.cn/new_page_174.htm"><FONT
color=#ff0000>霍尔集成电路CS3020、3040、3075、3503的技术参数</FONT></A></FONT></B><SPAN
class=未命名1><FONT face=隶书 size=5>技术参数霍地</FONT></SPAN></P>
<P align=center><B><FONT face=隶书 color=#808000
size=5>霍尔元件的原理和应用</FONT></B></P>
<P class=MsoNormal style="LINE-HEIGHT: 13.5pt; TEXT-ALIGN: left"
align=center><FONT color=#808000><SPAN lang=EN-US
style="FONT-FAMILY: Arial">
1</SPAN><SPAN style="FONT-FAMILY: 宋体">、</SPAN><SPAN
style="FONT-FAMILY: Arial"> </SPAN><SPAN
style="FONT-FAMILY: 宋体">霍尔元件</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial"> <BR></SPAN><SPAN
style="FONT-FAMILY: 宋体">霍尔元件应用霍尔效应的半导体。</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial"> </SPAN></FONT><FONT color=#808000><SPAN
lang=EN-US
style="FONT-FAMILY: Arial"><BR>
2</SPAN><SPAN style="FONT-FAMILY: 宋体">、</SPAN><SPAN
style="FONT-FAMILY: Arial"> </SPAN><SPAN
style="FONT-FAMILY: 宋体">霍尔效应</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial"> <BR></SPAN><SPAN
style="FONT-FAMILY: 宋体">置于磁场中的静止载流导体，当它的电流方向与磁场方向不一致时，载流导体上平行于电流和磁场方向上的两个面之间产生电动势差，这种现象称霍尔效应。</SPAN><SPAN
lang=EN-US style="FONT-FAMILY: Arial">
<BR> 3</SPAN><SPAN
style="FONT-FAMILY: 宋体">、</SPAN><SPAN style="FONT-FAMILY: Arial">
</SPAN><SPAN style="FONT-FAMILY: 宋体">霍尔系数（又称霍尔常数）</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">RH <BR></SPAN><SPAN
style="FONT-FAMILY: 宋体">在磁场不太强时，霍尔电势差</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">UH</SPAN><SPAN
style="FONT-FAMILY: 宋体">与激励电流</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">I</SPAN><SPAN
style="FONT-FAMILY: 宋体">和磁感应强度</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">B</SPAN><SPAN
style="FONT-FAMILY: 宋体">的乘积成正比，与霍尔片的厚度</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">δ</SPAN><SPAN
style="FONT-FAMILY: 宋体">成反比，即</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">UH =RH*I*B/δ</SPAN><SPAN
style="FONT-FAMILY: 宋体">，式中的</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">RH</SPAN><SPAN
style="FONT-FAMILY: 宋体">称为霍尔系数，它表示霍尔效应的强弱。</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial"> <BR></SPAN><SPAN
style="FONT-FAMILY: 宋体">另</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">RH=μ*ρ</SPAN><SPAN
style="FONT-FAMILY: 宋体">即霍尔常数等于霍尔片材料的电阻率</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">ρ</SPAN><SPAN
style="FONT-FAMILY: 宋体">与电子迁移率</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">μ</SPAN><SPAN
style="FONT-FAMILY: 宋体">的乘积。</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">
<BR> 4</SPAN><SPAN
style="FONT-FAMILY: 宋体">、</SPAN><SPAN style="FONT-FAMILY: Arial">
</SPAN><SPAN style="FONT-FAMILY: 宋体">霍尔灵敏度</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">KH</SPAN><SPAN
style="FONT-FAMILY: 宋体">（又称霍尔乘积灵敏度）</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial"> <BR></SPAN><SPAN
style="FONT-FAMILY: 宋体">霍尔灵敏度与霍尔系数成正比而与霍尔片的厚度</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">δ</SPAN><SPAN
style="FONT-FAMILY: 宋体">成反比，即</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">KH=RH/δ</SPAN><SPAN
style="FONT-FAMILY: 宋体">，它通常可以表征霍尔常数。</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">
<BR> 5</SPAN><SPAN
style="FONT-FAMILY: 宋体">、</SPAN><SPAN style="FONT-FAMILY: Arial">
</SPAN><SPAN style="FONT-FAMILY: 宋体">霍尔额定激励电流</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial"> <BR></SPAN><SPAN
style="FONT-FAMILY: 宋体">当霍尔元件自身温升</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">10</SPAN><SPAN
style="FONT-FAMILY: 宋体">℃时所流过的激励电流称为额定激励电流。</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">
<BR> 6</SPAN><SPAN
style="FONT-FAMILY: 宋体">、</SPAN><SPAN style="FONT-FAMILY: Arial">
</SPAN><SPAN style="FONT-FAMILY: 宋体">霍尔最大允许激励电流</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial"> <BR></SPAN><SPAN
style="FONT-FAMILY: 宋体">以霍尔元件允许最大温升为限制所对应的激励电流称为最大允许激励电流。</SPAN><SPAN
lang=EN-US style="FONT-FAMILY: Arial">
<BR> 7</SPAN><SPAN
style="FONT-FAMILY: 宋体">、</SPAN><SPAN style="FONT-FAMILY: Arial">
</SPAN><SPAN style="FONT-FAMILY: 宋体">霍尔输入电阻</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial"> <BR></SPAN><SPAN
style="FONT-FAMILY: 宋体">霍尔激励电极间的电阻值称为输入电阻。</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial">
<BR> 8</SPAN><SPAN
style="FONT-FAMILY: 宋体">、</SPAN><SPAN style="FONT-FAMILY: Arial">
</SPAN><SPAN style="FONT-FAMILY: 宋体">霍尔输出电阻</SPAN><SPAN lang=EN-US
style="FONT-FAMILY: Arial"> <BR></SPAN><SPAN
style="FONT-FAMILY: 宋体">霍尔输出电极间的电阻值称为输出电阻。</SPAN><SPAN lang=EN-US
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