发明授权
- 专利标题： Gain improved operational transconductance amplifier and control method thereof
- 专利标题（中）： 增加运算跨导放大器及其控制方法
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申请号： US11987923申请日： 2007-12-06
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公开(公告)号： US07701291B2公开(公告)日： 2010-04-20
- 发明人: Wei-Che Chiu
- 申请人： Wei-Che Chiu
- 申请人地址： TW Hsinchu
- 专利权人： Richtek Technology Corp.
- 当前专利权人： Richtek Technology Corp.
- 当前专利权人地址： TW Hsinchu
- 代理机构： Rosenberg, Klein & Lee
- 优先权： TW95146107A 20061208
- 主分类号： H03F3/45
- IPC分类号： H03F3/45
摘要：
A variable bias current is provided for the differential pair of an operational transconductance amplifier to improve the gain performance, especially to overcome the slew rate limit of the operational transconductance amplifier. The bias current is adjusted according to the differential input to the differential pair, the difference between the currents of the differential pair, or any one of the currents of the differential pair.
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