- 专利标题: System and method for a startup circuit for a differential CMOS amplifier
-
申请号: US10338918申请日: 2003-01-09
-
公开(公告)号: US20030137349A1公开(公告)日: 2003-07-24
- 发明人: David A. Sobel
- 申请人: Broadcom Corporation
- 申请人地址: null
- 专利权人: Broadcom Corporation
- 当前专利权人: Broadcom Corporation
- 当前专利权人地址: null
- 主分类号: H03F003/45
- IPC分类号: H03F003/45
摘要:
A system is provided for correcting start-up deficiencies in an amplifier. The system includes a comparing device configured to (i) receive a second circuit node voltage and a reference voltage as inputs, (ii) compare the received second circuit node voltage and the reference voltage, and (iii) produce a compensating voltage signal based upon the comparison. Next, an active device has a control terminal connected to an output port of the comparing device and is configured to receive the compensating voltage signal. The active device also includes an output terminal connected to the control terminal of the second active device, and a common terminal connected to a first circuit node. Another active device has a control terminal connected to the output port of the comparing device and is configured to receive the compensating voltage signal. The other active device also has an output terminal connected to the control terminal of the first active device, and a common terminal connected to the first circuit node.
公开/授权文献
信息查询