Invention Grant
- Patent Title: Power amplifier
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Application No.: US16575133Application Date: 2019-09-18
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Publication No.: US11558017B2Publication Date: 2023-01-17
- Inventor: Jaw-Ming Ding
- Applicant: Advanced Semiconductor Engineering, Inc.
- Applicant Address: TW Kaohsiung
- Assignee: Advanced Semiconductor Engineering, Inc.
- Current Assignee: Advanced Semiconductor Engineering, Inc.
- Current Assignee Address: TW Kaohsiung
- Agency: Foley & Lardner LLP
- Main IPC: H03F1/30
- IPC: H03F1/30 ; H03F3/213 ; H03F1/02

Abstract:
A power amplifier circuit includes a current generator and a current mirror driver. The current generator has a first input connected to a first voltage supply and an output configured to generate a first current. The current generator includes a first transistor, a second transistor, a first resistor and a second resistor. The first transistor has an emitter connected to ground. The second transistor has a base connected to a base of the first transistor and an emitter connected to ground. The first resistor is connected between the first voltage supply and a collector of the first transistor. The second resistor is connected between the first voltage supply and a collector of the second transistor. The current mirror drive has a first input connected to the output of the current generator to receive the first current and an output configured to generate a second current.
Public/Granted literature
- US20210083628A1 POWER AMPLIFIER Public/Granted day:2021-03-18
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