发明名称 |
Bipolar semiconductor integrated circuit with a protection circuit |
摘要 |
A bipolar semiconductor integrated circuit has a pnp transistor through which a DC power is supplied from an external DC power to various elements of the bipolar IC and a constant current circuit for turning the pnp transistor on and regulating the base current of the pnp transistor to a constant level causing operation in the saturation range of the pnp transistor.
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申请公布号 |
US5821601(A) |
申请公布日期 |
1998.10.13 |
申请号 |
US19970796547 |
申请日期 |
1997.02.06 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
YAMAMOTO, MASAHIRO;YASUDA, YUKIO |
分类号 |
H01L27/04;H01L21/822;H01L27/02;H01L27/06;H02H9/04;H02H11/00;H02J7/00;(IPC1-7):H01L23/60 |
主分类号 |
H01L27/04 |
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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