发明授权
- 专利标题： Compact low-power class AB amplifier
- 专利标题（中）： 紧凑型低功率AB类放大器
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申请号： US12177523申请日： 2008-07-22
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公开(公告)号： US07859338B2公开(公告)日： 2010-12-28
- 发明人: Ovidiu Bajdechi , Christopher Michael Ward
- 申请人： Ovidiu Bajdechi , Christopher Michael Ward
- 申请人地址： US CA Irvine
- 专利权人： Broadcom Corporation
- 当前专利权人： Broadcom Corporation
- 当前专利权人地址： US CA Irvine
- 代理机构： Sterne Kessler Goldstein & Fox, P.L.L.C.
- 主分类号： H03F3/45
- IPC分类号： H03F3/45
摘要：
A compact low-power class AB power amplifier design is provided. In an embodiment, the amplifier design eliminates an intermediate stage that couples an input stage and a biasing mesh of the amplifier. In another embodiment, the amplifier design reuses a tail current from the input stage to bias the biasing mesh. Accordingly, a much higher power efficiency can be achieved using the proposed amplifier design compared to conventional class AB amplifiers. Further, the proposed amplifier design is extremely compact and occupies a small silicon area.
公开/授权文献
- US20090027122A1 Compact Low-Power Class AB Amplifier 公开/授权日：2009-01-29
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