Stmicroelectronics (shenzhen) R&d Co. Ltd.

Xaut Zhang

XiangSheng Li

Mei Yang

Kelvin Jian Wen

YueHua Wang

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.

Input clamping structure for sound quality improvement in car-radio class-AB power amplifier design

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.

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Shenzhen, China

Xaut Zhang