Invention Grant
- Patent Title: Peak voltage limiting circuits and methods for power amplifiers
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Application No.: US14871952Application Date: 2015-09-30
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Publication No.: US10284153B2Publication Date: 2019-05-07
- Inventor: Anthony Francis Quaglietta , Joseph A Cuggino , Xuanang Zhu
- Applicant: SKYWORKS SOLUTIONS, INC.
- Applicant Address: US MA Woburn
- Assignee: Skyworks Solutions, Inc.
- Current Assignee: Skyworks Solutions, Inc.
- Current Assignee Address: US MA Woburn
- Agency: Chang & Hale LLP
- Main IPC: H03F3/04
- IPC: H03F3/04 ; H03F1/52 ; H03F3/19 ; H03F1/02 ; H03F3/195 ; H03F3/24

Abstract:
Peak voltage limiting circuits and method for power amplifiers. A power amplifier and/or a voltage limiting circuit includes a diode circuit coupled to an output of an amplification stage, the diode circuit configured to provide a conductive path from the output when an output voltage exceeds a selected value. The power amplifier and/or voltage limiting circuit also includes a sink circuit coupled to the diode circuit and a bias circuit, the sink circuit configured to reduce a bias voltage provided by the bias circuit when the output voltage exceeds the selected value to thereby limit the output voltage.
Public/Granted literature
- US20160099688A1 PEAK VOLTAGE LIMITING CIRCUITS AND METHODS FOR POWER AMPLIFIERS Public/Granted day:2016-04-07
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