发明名称 |
Feed back current-source circuit |
摘要 |
In a current-source circuit in which a first and a second MOS field-effect transistor form a current mirror circuit, wherein a reference current can be supplied to the first MOS field-effect transistor via a third MOS field-effect transistor connected in cascode and the drain electrode of a fourth MOS field-effect transistor connected to the second MOS field-effect transistor in cascode forms an output, the source electrodes of the third and of the fourth MOS field-effect transistors are connected to inputs of an automatic gain control amplifier whose output is connected to the gate electrode of the fourth MOS field-effect transistor. The fourth MOS field-effect transistor is an extended-drain MOS field-effect transistor. The drain electrode and the gate electrode of the fourth MOS field-effect transistor are connected to one another via a further MOS field-effect transistor whose gate electrode is acted on by an operating voltage for the circuit.
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申请公布号 |
US6690229(B2) |
申请公布日期 |
2004.02.10 |
申请号 |
US20020323352 |
申请日期 |
2002.12.18 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
RUDOLPH JOCHEN |
分类号 |
G05F3/26;H03F3/345;(IPC1-7):G05F1/10 |
主分类号 |
G05F3/26 |
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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