elect_switch_for_lamb_eng.htm

内含各国最基础的电路图,并做了详细的说明,对做底层开发的人员很有用.

            <td width="39%" colspan="2" align="center"><font face="Tahoma"><img
            src="R1A.gif" tppabs="http://users.otenet.gr/~athsam/Circuits/electronic_timer_switch_for_lamb/R1A.gif" width="313" height="35"
            alt="R1A.gif (2632 bytes)"></font></td>
            <td width="39%" colspan="2" align="center"><font face="Tahoma" size="2"><img
            src="R1C.gif" tppabs="http://users.otenet.gr/~athsam/Circuits/electronic_timer_switch_for_lamb/R1C.gif" width="351" height="39"
            alt="R1C.gif (2689 bytes)"></font></td>
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            <td width="10%"></td>
            <td width="39%" colspan="2" align="center"><font size="4" face="Tahoma"><strong>P=V.I=10.2V
            x 0.05A=0.5W</strong></font></td>
            <td width="39%" colspan="2" align="center"><font size="4" face="Tahoma"><strong>P=V.I=3V x
            0.01A=0.03W</strong></font></td>
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            <td width="10%"></td>
            <td width="39%" colspan="2" align="center"><font face="Tahoma"><strong>I</strong><small>dt=</small><strong>
            I</strong><small>d X (Number of Leds) </small></font></td>
            <td width="39%" colspan="2" align="center"><font face="Tahoma"><strong>V</strong><small>dt=</small><strong>V</strong><small>d
            X (Number of Leds) </small></font></td>
            <td width="12%"></td>
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            <td width="10%"></td>
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            <td width="10%"></td>
            <td width="23%"></td>
            <td width="33%" colspan="2" align="center"><font face="Tahoma"><small>Red Led 3mm</small><strong>
            I</strong><small>d=10mA </small><strong>V</strong><small>p=12V </small><strong>V</strong><small>d=1.8V</small></font></td>
            <td width="22%"></td>
            <td width="12%"></td>
          </tr>
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            <td width="10%"></td>
            <td width="23%"></td>
            <td width="33%" colspan="2" align="center"><font face="Tahoma"><small>Red Led 5mm</small><strong>
            I</strong><small>d=20mA </small><strong>V</strong><small>p=12V </small><strong>V</strong><small>d=1.8V</small></font></td>
            <td width="22%"></td>
            <td width="12%"></td>
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            <td width="10%"><font face="Tahoma" size="2">.</font></td>
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            <td width="12%"></td>
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        </td>
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        <td width="31%" height="13"></td>
        <td width="29%" height="13" bgcolor="#DD0000"><span lang="EN-US"
        style="font-size:10.0pt;font-family:
Tahoma;mso-fareast-font-family:&quot;Times New Roman&quot;;mso-ansi-language:EN-US;
mso-fareast-language:EL;mso-bidi-language:AR-SA"><p
        align="center"><font color="#FFFF00" face="Tahoma"><strong>Led connection of external
        switches.</strong></font></span></td>
        <td width="40%" height="13"></td>
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      <tr>
        <td width="100%" height="8" colspan="3"><font face="Tahoma"><span lang="EN-US"
        style="font-size:10.0pt;
font-family:Tahoma;mso-ansi-language:EN-US">In Fig.2-3 appear
        two ways of connection of clue Led that are found on each external switch. In the Fig.2
        the Led of all switches, are connected parallel the one with the other. In this case the
        calculation of resistance R1 becomes as it appears in the Table1. The connection Led in
        series appear in the Fig.3 and the calculation of R1 value exist in the Table2. If you do
        not need Leds then you can abolition. </span><span lang="EN-US"
        style="mso-ansi-language:EN-US"><o:p></o:p></span></font></td>
      </tr>
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        <td width="100%" height="8" colspan="3"></td>
      </tr>
      <tr>
        <td width="100%" height="393" colspan="3"><p align="center"><font face="Tahoma"><img
        src="elect_timer_switch_for_lamb2.gif" tppabs="http://users.otenet.gr/~athsam/Circuits/electronic_timer_switch_for_lamb/elect_timer_switch_for_lamb2.gif"
        width="380" height="398" alt="elect_timer_switch_for_lamb2.gif (7327 bytes)"></font></td>
      </tr>
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        <td width="100%" height="16" colspan="3"></td>
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        <td width="100%" height="12" colspan="3"></td>
      </tr>
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        <td width="15%" height="9"></td>
        <td width="66%" height="9" bgcolor="#DD0000"><span lang="EN-US"
        style="font-size:10.0pt;font-family:
Tahoma;mso-fareast-font-family:&quot;Times New Roman&quot;;mso-ansi-language:EN-US;
mso-fareast-language:EL;mso-bidi-language:AR-SA"><p
        align="center"><font color="#FFFF00" face="Tahoma"><strong>Various connection modes, of
        external loads.</strong></font></span></td>
        <td width="19%" height="9"></td>
      </tr>
      <tr>
        <td width="100%" height="0" colspan="3"><small><font face="Tahoma"><span lang="EN-US">Various
        connection modes exist in the Fig.3,4,5. In the Fig.3 exist one of typical house
        connection, where the Sw is the existing switch of wall house. When the Sw is closed lamb
        it turns on independent from the operation of circuit. If the switch Sw is open then the
        circuit takes on her operation.</span></font></small></td>
      </tr>
      <tr>
        <td width="100%" height="1" colspan="3"><font face="Tahoma">.</font></td>
      </tr>
      <tr>
        <td width="100%" height="605" colspan="3"><p align="center"><font face="Tahoma"><img
        src="elect_timer_switch_for_lamb3.gif" tppabs="http://users.otenet.gr/~athsam/Circuits/electronic_timer_switch_for_lamb/elect_timer_switch_for_lamb3.gif"
        width="385" height="601" alt="elect_timer_switch_for_lamb3.gif (6150 bytes)">&nbsp;&nbsp; <img
        src="elect_timer_switch_for_lamb4.gif" tppabs="http://users.otenet.gr/~athsam/Circuits/electronic_timer_switch_for_lamb/elect_timer_switch_for_lamb4.gif"
        width="316" height="510" alt="elect_timer_switch_for_lamb4.gif (4898 bytes)">
        &nbsp;&nbsp;&nbsp;&nbsp; <img
        src="elect_timer_switch_for_lamb5.gif" tppabs="http://users.otenet.gr/~athsam/Circuits/electronic_timer_switch_for_lamb/elect_timer_switch_for_lamb5.gif"
        width="390" height="412" alt="elect_timer_switch_for_lamb5.gif (4486 bytes)"></font></td>
      </tr>
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        <td width="100%" height="1" colspan="3"></td>
      </tr>
      <tr>
        <td width="100%" height="1" colspan="3"><font face="Tahoma">.</font></td>
      </tr>
      <tr>
        <td width="100%" height="7" colspan="3"><p align="center"><font face="Tahoma"><img
        src="elect_timer_switch_for_lamb6.gif" tppabs="http://users.otenet.gr/~athsam/Circuits/electronic_timer_switch_for_lamb/elect_timer_switch_for_lamb6.gif"
        width="254" height="262" alt="elect_timer_switch_for_lamb6.gif (2206 bytes)"></font></td>
      </tr>
      <tr>
        <td width="100%" height="8" colspan="3"><span lang="EN-US"
        style="font-size:10.0pt;font-family:
Tahoma;mso-fareast-font-family:&quot;Times New Roman&quot;;mso-ansi-language:EN-US;
mso-fareast-language:EL;mso-bidi-language:AR-SA"><p
        align="center"><font face="Tahoma">Example of placement of Led in exterior switch.</font></span></td>
      </tr>
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        <td width="100%" height="7" colspan="3"></td>
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        <td width="100%" height="1" colspan="3"></td>
      </tr>
      <tr>
        <td width="100%" height="80" colspan="3"><p align="center">&nbsp;</p>
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            <td width="100%"><p align="center"><font face="Tahoma" color="#FF0000"><small><strong>Sam
            Electronic Circuits </strong><small><small>8/04</small></small></small></font></td>
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