发明名称 |
Constant current/constant voltage generation circuit with reduced noise upon switching of operation mode |
摘要 |
In a circuit producing a reference voltage that is used in an internal circuit having an operation mode switched by utilizing a MOS transistor receiving a constant voltage on its gate, a signal changing in a direction controlling a voltage change caused on a gate node is applied to the gate or a drain of the MOS transistor receiving the constant voltage on the gate when the operation mode is switched. The constant voltage can be suppressed from varying through capacitive coupling of a parasitic capacitance of the constant voltage MOS transistor when the operation mode is switched, so that the reference voltage can be stably produced.
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申请公布号 |
US6201380(B1) |
申请公布日期 |
2001.03.13 |
申请号 |
US20000488780 |
申请日期 |
2000.01.21 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
TSUJINO MITSUNORI;IKEDA YUTAKA |
分类号 |
G05F1/46;G05F3/24;(IPC1-7):G05F3/20 |
主分类号 |
G05F1/46 |
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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