发明名称 |
ANALOG MULTIPLEXER WITH INSULATION POWER SUPPLY |
摘要 |
An analog multiplexer with an insulated power supply includes: an analog signal transformer receiving an analog signal input in its primary winding via an FET, and ON/OFF driving the FET to generate a pulse with an amplitude of the analog signal in its secondary winding; a drive transformer receiving a drive pulse input in its primary winding via an FET to generate a pulse turning ON/OFF the FET in its secondary winding; an inhibit generation circuit generating an inhibit pulse having a wider pulse width than that of the drive pulse; an AND gate determining a logical product of a continuous pulse from a continuous pulse generation circuit and the inhibit pulse to obtain a power supply pulse train; and a rectifying/smoothing circuit obtaining a direct current voltage corresponding to the power supply pulse train to apply the direct current voltage to the primary winding of the transformer through high resistance. |
申请公布号 |
US2010019828(A1) |
申请公布日期 |
2010.01.28 |
申请号 |
US20080525556 |
申请日期 |
2008.04.14 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
SAITO SEIICHI;AKEBOSHI YOSHIHIRO;NOMOTO HIROKAZU |
分类号 |
H03K17/94 |
主分类号 |
H03K17/94 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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