Invention Grant
US09331644B2 Input clamping structure for sound quality improvement in car-radio class-AB power amplifier design
有权
输入钳位结构，用于汽车无线电类AB功率放大器设计中的音质改善
- Patent Title: Input clamping structure for sound quality improvement in car-radio class-AB power amplifier design
- Patent Title (中): 输入钳位结构，用于汽车无线电类AB功率放大器设计中的音质改善
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Application No.: US14599701Application Date: 2015-01-19
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Publication No.: US09331644B2Publication Date: 2016-05-03
- Inventor: Mei Yang , YueHua Wang , Xaut Zhang , Kelvin Wen , XiangSheng Li
- Applicant: STMICROELECTRONICS (SHENZHEN) R&D CO. LTD
- Applicant Address: CN Shenzhen
- Assignee: STMICROELECTRONICS (SHENZHEN) R&D CO. LTD.
- Current Assignee: STMICROELECTRONICS (SHENZHEN) R&D CO. LTD.
- Current Assignee Address: CN Shenzhen
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Priority: CN201110461474 20111230
- Main IPC: H03K5/22
- IPC: H03K5/22 ; H03F3/21 ; H03F3/26 ; H03F3/187 ; H03F3/45 ; H03F3/68
Abstract:
A clamping circuit for a class AB amplifier includes a reference voltage circuit, four NPN Darlington transistors having inputs coupled to the reference voltage circuit, and outputs for providing four clamped voltages and a split NPN Darlington transistor having an input coupled to the reference voltage circuit, and four separate outputs for providing four AC ground voltages.
Public/Granted literature
- US20150137888A1 INPUT CLAMPING STRUCTURE FOR SOUND QUALITY IMPROVEMENT IN CAR-RADIO CLASS-AB POWER AMPLIFIER DESIGN Public/Granted day:2015-05-21
Information query
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