Invention Grant
- Patent Title: Cascode amplifier segmentation for enhanced thermal ruggedness
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Application No.: US14860971Application Date: 2015-09-22
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Publication No.: US09654155B2Publication Date: 2017-05-16
- Inventor: Philip John Lehtola
- 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: H04B1/38
- IPC: H04B1/38 ; H04B1/04 ; H03F1/52 ; H03F3/19 ; H03F3/21 ; H03F1/02 ; H03F1/22 ; H03F3/24

Abstract:
According to some implementation, a power amplifier includes a plurality of pairs of transistors, each pair of transistors including a common emitter transistor and a common base transistor arranged in a cascode configuration. The power amplifier further includes electrical connections implemented to connect the plurality of pairs in a parallel configuration between an input node and an output node. According to some implementations, the electrical connections are configured to distribute a collector current to all of the common base transistors to thereby reduce likelihood of damage to one or more common base transistors during a thermal run-away event.
Public/Granted literature
- US20160241194A1 CASCODE AMPLIFIER SEGMENTATION FOR ENHANCED THERMAL RUGGEDNESS Public/Granted day:2016-08-18
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