Hehong Zou

Title: Hehong Zou: Innovator in Operational Amplifier Circuits

Introduction

Hehong Zou is a prominent inventor based in Hangzhou, China. He has made significant contributions to the field of electronics, particularly in the design of operational amplifier circuits. With a total of 7 patents to his name, Zou's work has advanced the capabilities of electronic devices.

Latest Patents

One of his latest inventions is a fully-differential two-stage operational amplifier circuit. This circuit includes a first-stage amplification circuit, a second-stage amplification circuit, a common-mode signal acquisition circuit, a common-mode feedback circuit, and a bias circuit. The first-stage amplification circuit features a telescopic structure that receives differential input signals, while the second-stage amplification circuit has a common-source structure that outputs differential output signals. Additionally, the common-mode signal acquisition circuit processes the differential output signals to produce an operational amplifier output common-mode signal. The common-mode feedback circuit provides feedback signals to both amplification stages, and the bias circuit supplies necessary bias voltages.

Another notable invention is a CMOS trans-impedance amplifier. This device consists of an inverting amplifier circuit and a feedback resistor. The inverting amplifier circuit is designed with an input end and an output end, with the feedback resistor connected between them. It includes at least three sequentially-connected amplifier units, each comprising three nFETs. The configuration allows for the output of an amplified voltage signal, enhancing the performance of electronic systems.

Career Highlights

Hehong Zou has worked with several companies throughout his career, including Ampliphy Technologies Limited and Hangzhou Hongxin Microelectronics Technology Co., Ltd. His experience in these organizations has contributed to his expertise in electronic circuit design and innovation.

Collaborations

Zou has collaborated with notable colleagues such as Tianlin Cao and Zhiyang Wang. Their joint efforts have furthered advancements in the field of electronics and operational amplifiers.

Conclusion

Hehong Zou is a distinguished inventor whose work in operational amplifier circuits has made a significant impact on the electronics industry. His innovative designs and collaborations continue to influence the development of advanced electronic systems.