发明名称 |
Method and apparatus for controlling the common-mode output voltage of a differential buffer |
摘要 |
<p>A method and device for controlling the common-node output voltage of a differential buffer is disclosed. According to the invention, the common-mode output voltage of the differential buffer is controlled to a desired value by supplying a first current to the output of the differential buffer and supplying a second current to the output of the differential buffer, the second current being opposite in polarity and lower in magnitude than the first current. The common-mode output voltage of the differential buffer is sensed and an adjustment current is added to the second current to adjust the common-mode output voltage to the desired value. <IMAGE></p> |
申请公布号 |
EP0938187(A1) |
申请公布日期 |
1999.08.25 |
申请号 |
EP19990300945 |
申请日期 |
1999.02.09 |
申请人 |
LUCENT TECHNOLOGIES INC. |
发明人 |
FETTERMAN, H. SCOTT;RICH, DAVID A. |
分类号 |
H03K19/0944;H03F3/45;(IPC1-7):H03F3/45 |
主分类号 |
H03K19/0944 |
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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