发明授权
US07012467B2 Apparatus and method for compensating operating current in an amplifier when supply voltage varies
有权
当电源电压变化时，补偿放大器工作电流的装置和方法
- 专利标题： Apparatus and method for compensating operating current in an amplifier when supply voltage varies
- 专利标题（中）： 当电源电压变化时，补偿放大器工作电流的装置和方法
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申请号： US10796954申请日： 2004-03-10
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公开(公告)号： US07012467B2公开(公告)日： 2006-03-14
- 发明人: Mark W. Morgan , Yanli Fan
- 申请人： Mark W. Morgan , Yanli Fan
- 申请人地址： US TX Dallas
- 专利权人： Texas Instruments Incorporated
- 当前专利权人： Texas Instruments Incorporated
- 当前专利权人地址： US TX Dallas
- 代理商 W. Daniel Swayze, Jr.; W. James Brady; Frederick J. Telecky, Jr.
- 主分类号： H03F3/45
- IPC分类号： H03F3/45
摘要：
An apparatus for compensating operating current in an amplifier device when supply voltage to the amplifier device decreases below a predetermined value at an input voltage supply locus includes: (a) A first control circuit coupled with the input voltage supply locus. The first control circuit generates an output signal at an output locus when the supply voltage decreases below the predetermined value. (b) A second control circuit coupled with the output locus and coupled with the amplifier device. The second control circuit effects the compensating in response to the output signal.
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