Invention Grant
- Patent Title: Power amplifier
- Patent Title (中): 功率放大器
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Application No.: US14613455Application Date: 2015-02-04
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Publication No.: US09461598B2Publication Date: 2016-10-04
- Inventor: Kelvin Jian Wen , Mei Yang , Zheng Hua Song , Xian Xiong , Cristiano Meroni
- Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd , STMicroelectronics S.r.l.
- Applicant Address: CN Shenzhen IT Agrate Brianza
- Assignee: STMICROELECTRONICS (SHENZHEN) R&D CO. LTD,STMICROELECTRONICS S.R.L.
- Current Assignee: STMICROELECTRONICS (SHENZHEN) R&D CO. LTD,STMICROELECTRONICS S.R.L.
- Current Assignee Address: CN Shenzhen IT Agrate Brianza
- Agency: Gardere Wynne Sewell LLP
- Priority: CN201410320670 20140630
- Main IPC: H03F3/45
- IPC: H03F3/45 ; H03F3/187

Abstract:
A power amplifier includes a clamping circuit configured to provide a clamped voltage from a power supply; an amplifier pair having first inputs coupled to the clamping circuit, second inputs and an output for providing an amplified signal; and a biasing circuit coupled between the clamping circuit and the second inputs. The biasing circuit is configured to adjust input bias voltages of the amplifier pair such that the output of the amplifier pair varies proportionally to a change of the power supply.
Public/Granted literature
- US20150381125A1 POWER AMPLIFIER Public/Granted day:2015-12-31
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