发明名称 |
Variable gain amplifier circuit |
摘要 |
A variable gain amplifier circuit has: a voltage-current conversion unit for converting an input voltage into a current and outputting the current; a current amplifier for amplifying the current at a set variable gain; a converter for converting the amplified current into an output voltage; and an operating point setting unit for setting an operating point so that the output voltage converges into a predetermined range during a period while a reference voltage is input.
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申请公布号 |
US6175278(B1) |
申请公布日期 |
2001.01.16 |
申请号 |
US19990318751 |
申请日期 |
1999.05.26 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
HASEGAWA JUN |
分类号 |
H03F1/34;H03F3/34;H03F3/347;H03G1/00;H03G3/00;H03G3/10;(IPC1-7):H03G3/30 |
主分类号 |
H03F1/34 |
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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