发明授权
- 专利标题： Digital power amplifier
- 专利标题（中）： 数字功率放大器
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申请号： US13490901申请日： 2012-06-07
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公开(公告)号： US08638168B1公开(公告)日： 2014-01-28
- 发明人: David M. Signoff , Li Lin , Renaldi Winoto , Wayne A. Loeb , Shu-Hsien Liao , Ming He
- 申请人： David M. Signoff , Li Lin , Renaldi Winoto , Wayne A. Loeb , Shu-Hsien Liao , Ming He
- 申请人地址： BM Hamilton
- 专利权人： Marvell International Ltd.
- 当前专利权人： Marvell International Ltd.
- 当前专利权人地址： BM Hamilton
- 主分类号： H03F3/68
- IPC分类号： H03F3/68
摘要：
Systems and methods for power amplification using multiple digital amplifiers are provided. A power amplifier includes a first digital amplifier configured to process a digital input signal to generate a first analog output signal. The first analog output signal is configured to have a magnitude corresponding to amplitude information of the digital input signal. The power amplifier further includes a second digital amplifier configured to process an adjusted digital input signal to generate a second analog output signal. The second analog output signal is configured to have a magnitude corresponding to amplitude information of the adjusted digital input signal. An adjustment module configured to adjust amplitude information and phase information of the digital input signal generates the adjusted digital input signal. The digital input signal is adjusted to control a relationship between the first analog output signal and the second analog output signal.
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