发明公开
EP2766782A2 A CONSTANT CURRENT SOURCE CIRCUIT AND A SAMPLING CIRCUIT
有权
KONSTANTSTROMQUELLESCHALTUNG UND ABTASTSCHALTUNG
- 专利标题： A CONSTANT CURRENT SOURCE CIRCUIT AND A SAMPLING CIRCUIT
- 专利标题（中）： KONSTANTSTROMQUELLESCHALTUNG UND ABTASTSCHALTUNG
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申请号： EP12758798.8申请日： 2012-08-23
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公开(公告)号： EP2766782A2公开(公告)日： 2014-08-20
- 发明人: DAI, Xuewei , JIANG, Chunjun , TJACO, Middel , ZHANG, Dezhao
- 申请人： OSRAM GmbH
- 申请人地址： Marcel-Breuer-Strasse 6 80807 München DE
- 专利权人： OSRAM GmbH
- 当前专利权人： OSRAM GmbH
- 当前专利权人地址： Marcel-Breuer-Strasse 6 80807 München DE
- 优先权： CN201110308907 20111012
- 国际公布： WO2013053523 20130418
- 主分类号： G05F1/56
- IPC分类号： G05F1/56 ; H05B33/08 ; G05F3/20
摘要：
A constant current source circuit includes a main circuit, wherein the main circuit includes a first three-terminal regulator, a transistor, a sample resistor and a load, an output terminal of the first three-terminal regulator is connected with a control Electrode of the transistor, a reference Electrode of the transistor is connected with a voltage input terminal, a working Electrode is connected with one end of the load, and the other end of the load is connected with one end of the sample resistor, and the other end of the sample resistor and an input terminal of the first three-terminal regulator are connected to a reference potential, respectively, wherein the constant current source circuit further includes an adjusting unit that includes a voltage stabilizing unit, a fourth resistor and a fifth resistor.
公开/授权文献
- EP2766782B1 A CONSTANT CURRENT SOURCE CIRCUIT AND A SAMPLING CIRCUIT 公开/授权日：2018-11-28
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