Kam Hung Chan

Title: Innovations of Kam Hung Chan

Introduction

Kam Hung Chan is a prominent inventor based in Hong Kong, CN. He has made significant contributions to the field of temperature sensing technology, holding a total of 4 patents. His work primarily focuses on developing advanced on-chip temperature sensor circuits using complementary metal-oxide-semiconductor (CMOS) processes.

Latest Patents

Kam Hung Chan's latest patents include a differential temperature sensor with sensitivity set by current-mirror and resistor ratios without limiting DC bias. This innovative circuit utilizes PNP transistors to create a differential on-chip temperature sensor. The design features a pair of transistors with collector currents sensitive to voltage, which are influenced by saturation currents. A scaling resistor connects to the emitter of one transistor, and an error amplifier generates a bias voltage to current sources proportional to absolute temperature. This design effectively subtracts out saturation current sensitivity, allowing for a more accurate temperature measurement. Additionally, the temperature sensitivity is determined by the ratio of the multiplier resistor and the scaling resistor, multiplied by a mirroring factor. A differential output is also provided, enhancing the sensor's functionality.

Career Highlights

Kam Hung Chan is affiliated with the Hong Kong Applied Science and Technology Research Institute, where he continues to innovate and develop new technologies. His expertise in CMOS processes and temperature sensing has positioned him as a key figure in his field.

Collaborations

Some of his notable coworkers include Chun Fai Wong and Kwok Kuen (David) Kwong, who have collaborated with him on various projects.

Conclusion

Kam Hung Chan's contributions to temperature sensing technology through his innovative patents demonstrate his expertise and commitment to advancing the field. His work continues to influence the development of more efficient and accurate temperature sensors.