Wangpeng Cao

Title: Innovations of Wangpeng Cao

Introduction

Wangpeng Cao is an accomplished inventor based in San Jose, California. He has made significant contributions to the field of electronics, particularly in the development of circuits that enhance the performance of digital clocks. His innovative approach has led to the creation of a patented technology that addresses critical challenges in clock signal processing.

Latest Patents

Wangpeng Cao holds a patent for a "Digital clock adaptive duty cycle circuit." This invention processes a nominal 50% duty cycle input CLKIN clock signal through an adaptive circuit. The output consists of complementary CLK and CLKB clock signals, which maintain a duty cycle that is continuously and automatically kept at approximately 50%. The circuit features a duty cycle adjustor circuit with inverter stages, where the voltage is adjusted by a control voltage to vary the duty cycle of the CLKIN signal. The resulting differential CLK and CLKB signals are low pass filtered to obtain DC voltages, which are then input to a differential operational amplifier. This design ensures that the duty cycle remains at 50% ± 0.1%, even when the CLKIN duty cycle varies from 33% to 67%. This innovation allows for error-free data transfer between integrated circuit stages, even with varying setup times and increased clock frequencies.

Career Highlights

Wangpeng Cao is currently employed at Chrontel Inc., where he continues to develop cutting-edge technologies in the field of electronics. His work focuses on improving the reliability and efficiency of digital clock circuits, which are essential components in various electronic devices.

Conclusion

Wangpeng Cao's contributions to the field of electronics, particularly through his patented digital clock adaptive duty cycle circuit, demonstrate his innovative spirit and technical expertise. His work not only enhances the performance of digital clocks but also paves the way for advancements in integrated circuit technology.