Company Filing History:
2 out of 1,064 
2 out of 62 Years Active: 2019-2020
Title: Innovations of Inventor Kai-Yu Hu
Introduction
Kai-Yu Hu is a notable inventor based in Tainan, Taiwan. He has made significant contributions to the field of electronics, particularly in the development of digital controllers for DC-to-DC converters. With a total of 2 patents, his work showcases innovative solutions that enhance the efficiency and functionality of power conversion systems.
Latest Patents
One of his latest patents is a "Digital constant on-time controller adaptable to a DC-to-DC converter." This invention includes a current sensing circuit that senses the stored energy of the DC-to-DC converter, generating a sense voltage. It features a semi-amplitude detector that detects half of a peak-to-peak amplitude of the sense voltage, producing a semi-amplitude voltage. Additionally, a DC voltage detector monitors the DC voltage across an effective series resistor of an energy storage circuit, generating a DC voltage. An arithmetic device adds the sense voltage and the semi-amplitude voltage, from which the DC voltage and a predetermined reference signal are subtracted. Finally, a pulse-width modulation (PWM) generator creates a switch control signal based on the arithmetic device's result.
Another significant patent is the "DC-to-DC converter and a digital constant on-time controller thereof." This invention also includes a current sensing circuit that senses stored energy, generating a sense voltage. It incorporates an offset cancellation circuit that receives the sense voltage, producing an offset-removed sense voltage according to a valley voltage of the sense voltage. A comparator then compares this voltage with a reference signal, and a PWM generator generates a switch control signal based on the comparison result.
Career Highlights
Throughout his career, Kai-Yu Hu has worked with prominent companies such as Himax Technologies, Inc. and the National Cheng Kung University Research and Developmental Foundation. His experience in these organizations has contributed to his expertise in electronic innovations.
Collaborations
One of his notable collaborators is Chien-Hung Tsai. Their partnership has likely fostered advancements in their respective fields.
Conclusion
Kai-Yu Hu's contributions to the field of electronics through his innovative patents and collaborations highlight his role as a significant inventor. His work continues to influence the development of efficient power conversion technologies.