Yi-Fong Wang

Title: Yi-Fong Wang: Innovator in Amplifier Technology

Introduction

Yi-Fong Wang is a prominent inventor based in Taipei, Taiwan. He has made significant contributions to the field of amplifier technology, holding a total of 6 patents. His work focuses on enhancing the performance and efficiency of amplifiers through innovative designs.

Latest Patents

One of Yi-Fong Wang's latest patents is a "Power amplifier with harmonic filter." This invention discloses an amplifier that includes a signal input end for inputting an input signal, a voltage input end for inputting a source voltage, and an amplifying circuit that generates an amplified input signal. The amplified input signal comprises a fundamental signal, a first harmonic signal, and a second harmonic signal. The first harmonic signal is a second-order harmonic of the fundamental signal, while the second harmonic signal is a third-order harmonic of the fundamental signal. Additionally, a harmonic filter is coupled between the voltage input end and the amplifying circuit to filter the first and second harmonic signals, with a signal output end for outputting an output signal based on the amplified input signal.

Another notable patent is the "Bias device," which includes a transistor, a bias circuit, and an impedance unit. The transistor has a first terminal and a second terminal that provides a first bias voltage to an input terminal of an amplifier. The bias circuit is designed to receive a first system voltage and provide a second bias voltage to the control terminal of the first transistor. The impedance unit adjusts the input impedance according to the frequency of a radio frequency signal received from the amplifier's input terminal.

Career Highlights

Yi-Fong Wang is currently employed at Richwave Technology Corporation, where he continues to innovate in the field of amplifier technology. His work has significantly impacted the design and functionality of amplifiers used in various applications.

Collaborations

Yi-Fong Wang collaborates with his coworker, Wei-Kung Deng, to further enhance their research and development efforts in amplifier technology.

Conclusion

Yi-Fong Wang is a distinguished inventor whose contributions to amplifier technology have led to several innovative patents. His work continues to influence the industry and improve the performance of electronic devices.