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1.发明授权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公开(公告)号：US08970280B2
公开(公告)日：2015-03-03
申请号：US13707350
申请日：2012-12-06
Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd.
Inventor： Mei Yang , YueHua Wang , Xaut Zhang , Kelvin Wen , XiangSheng Li
CPC classification number: H03F3/211 , H03F3/187 , H03F3/26 , H03F3/4508 , H03F3/45475 , H03F3/68 , H03F2200/03 , H03F2203/21131 , H03F2203/45102 , H03F2203/45154 , H03F2203/45244 , H03F2203/45528 , H03F2203/45552
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.
Abstract translation: 用于AB类放大器的钳位电路包括参考电压电路，具有耦合到参考电压电路的输入的四个NPN达林顿晶体管和用于提供四个钳位电压的输出，以及具有耦合到参考电压电路的输入的分离NPN达林顿晶体管 ，以及四个独立的输出，用于提供四个交流接地电压。
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2.发明授权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公开(公告)号：US09331644B2
公开(公告)日：2016-05-03
申请号：US14599701
申请日：2015-01-19
Applicant: STMICROELECTRONICS (SHENZHEN) R&D CO. LTD
Inventor： Mei Yang , YueHua Wang , Xaut Zhang , Kelvin Wen , XiangSheng Li
CPC classification number: H03F3/211 , H03F3/187 , H03F3/26 , H03F3/4508 , H03F3/45475 , H03F3/68 , H03F2200/03 , H03F2203/21131 , H03F2203/45102 , H03F2203/45154 , H03F2203/45244 , H03F2203/45528 , H03F2203/45552
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.
Abstract translation: 用于AB类放大器的钳位电路包括参考电压电路，具有耦合到参考电压电路的输入的四个NPN达林顿晶体管和用于提供四个钳位电压的输出和具有耦合到参考电压电路的输入的分立NPN达林顿晶体管， 和四个单独的输出，用于提供四个交流接地电压。
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