发明名称 |
ELECTRONIC CIRCUIT, SEMICONDUCTOR DEVICE, ELECTRONIC EQUIPMENT, AND CLOCK |
摘要 |
A constant-voltage generating circuit (100) which generates a constant voltage. The circuit (100) incorporates a first voltage generating circuit (110) which generates a reference voltage, and a second voltage generating circuit (130) which generates the constant voltage having a specified correlation with the reference voltage. The first voltage generating circuit (110) incorporates a first constant-current source (150-1) which supplies a constant current and a first transistor (112) for controlling voltage which is supplied with the above-mentioned constant current and outputs the above-mentioned reference voltage set on the basis of a prescribed potential. The constant current is set at the value of the saturated operating area of the first transistor (112) for controlling voltage.
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申请公布号 |
WO9839693(A1) |
申请公布日期 |
1998.09.11 |
申请号 |
WO1998JP00866 |
申请日期 |
1998.03.03 |
申请人 |
SEIKO EPSON CORPORATION;KADOWAKI, TADAO;MAKIUCHI, YOSHIKI;NAKAMIYA, SHINJI |
发明人 |
KADOWAKI, TADAO;MAKIUCHI, YOSHIKI;NAKAMIYA, SHINJI |
分类号 |
G04G19/00;G04G99/00;G05F1/46;G05F1/56;G05F1/618;G05F3/24;(IPC1-7):G05F1/56;G04G1/00;G04C10/00;H03B5/04 |
主分类号 |
G04G19/00 |
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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