Invention Grant
- Patent Title: Apparatus and methods for capacitive load reduction
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Application No.: US14067828Application Date: 2013-10-30
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Publication No.: US09257940B2Publication Date: 2016-02-09
- Inventor: Sabah Khesbak
- 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: Knobbe Martens Olson & Bear LLP
- Main IPC: H03F1/02
- IPC: H03F1/02 ; H03F1/56 ; H03F3/19 ; H03F3/24 ; H03F3/68 ; H03F3/72

Abstract:
Apparatus and methods for capacitive load reduction are disclosed. In one embodiment, a power amplifier system includes a plurality of power amplifiers and an envelope tracking module for generating a supply voltage for the power amplifiers. The power amplifier system further includes a switch and a decoupling capacitor operatively associated with a first power amplifier of the system. The switch is configured to electrically float an end of the decoupling capacitor when the first power amplifier is disabled so as to reduce capacitive loading of the envelope tracker and to operate as a dampening resistor when the power amplifier is enabled so as to improve the stability of the system.
Public/Granted literature
- US20140084998A1 APPARATUS AND METHODS FOR CAPACITIVE LOAD REDUCTION Public/Granted day:2014-03-27
Information query
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