发明名称 |
Circuit compensating for change in internal power supply voltage, and semiconductor integrated circuit device including such a circuit |
摘要 |
A semiconductor integrated circuit device includes an internal voltage-down converter and a voltage compensation circuit. The internal voltage-down converter provides an internal power supply voltage. The voltage compensation circuit includes a comparator, a capacitor, a transistor, and a constant current source. When the voltage (internal power supply voltage) of the output node suddenly drops, the potential at the positive input of the comparator is reduced by the coupling effect of the capacitor. As a result, the output node is charged. The potential of the positive input of the comparator is charged. As a result, the charging with respect to the output node ends.
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申请公布号 |
US6181119(B1) |
申请公布日期 |
2001.01.30 |
申请号 |
US19990227937 |
申请日期 |
1999.01.11 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
IKEDA YUTAKA;ITOU TAKASHI |
分类号 |
G11C11/413;G05F1/56;G05F1/613;G11C11/407;H03K17/14;(IPC1-7):G05F1/40;H03K3/01 |
主分类号 |
G11C11/413 |
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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