![SWITCHED-CAPACITOR DC BLOCKING AMPLIFIER](/abs-image/US/2012/12/06/US20120306575A1/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: SWITCHED-CAPACITOR DC BLOCKING AMPLIFIER
- 专利标题(中):开关电容直流阻塞放大器
- 申请号:US13271130 申请日:2011-10-11
- 公开(公告)号:US20120306575A1 公开(公告)日:2012-12-06
- 发明人: Peter J. Shah , Shahin Mehdizad Taleie , Gerrit Groenewold , Guoqing Miao , Eunyung Sung
- 申请人: Peter J. Shah , Shahin Mehdizad Taleie , Gerrit Groenewold , Guoqing Miao , Eunyung Sung
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 主分类号: H03F3/45
- IPC分类号: H03F3/45 ; H03F1/34
摘要:
A switched-capacitor DC blocking amplifier is disclosed. In an embodiment, an integrated circuit is provided that includes an amplifier having an amplifier input and an amplifier output, a capacitor connected to the amplifier input and configured to receive an input signal, and a switched capacitor circuit coupled to provide a resistance between the amplifier input and the amplifier output. In one implementation, the switched capacitor circuit is configured with a feed forward circuit to reduce aliasing. In another implementation, the switched capacitor circuit includes a switched impedance circuit to reduce noise.
摘要(中):
公开了一种开关电容器直流阻塞放大器。 在一个实施例中,提供一种集成电路,其包括具有放大器输入和放大器输出的放大器,连接到放大器输入并被配置为接收输入信号的电容器,以及耦合以提供放大器之间的电阻的开关电容器电路 输入和放大器输出。 在一个实现中,开关电容器电路配置有前馈电路以减少混叠。 在另一实施方案中,开关电容器电路包括用于降低噪声的开关阻抗电路。
公开/授权文献:
- US08638165B2 Switched-capacitor DC blocking amplifier 公开/授权日:2014-01-28