Chun-Foong Cheah

Title: Innovations of Chun-Foong Cheah

Introduction

Chun-Foong Cheah is an accomplished inventor based in San Francisco, CA. He has made significant contributions to the field of automotive technology, particularly in the area of fuel composition sensing. His innovative work has led to the development of a unique integrated circuit that enhances engine efficiency.

Latest Patents

Chun-Foong Cheah holds 1 patent for his invention titled "IC for producing an output voltage related to fuel composition." This circuit responds to the output of a capacitive fuel sensor, enabling it to distinguish between gasoline and methanol. The circuit produces an output that is directly related to the proportion of methanol in the fuel. It operates independently of the conductivity in the sensor, which can be affected by fuel contamination. The design employs a square wave to excite the sensor, ensuring stable amplitude. Additionally, it includes an amplitude modulation detector that converts square wave transients into a voltage output related to fuel composition. This output can be utilized by an engine control mechanism to optimize engine performance based on the fuel supplied.

Career Highlights

Chun-Foong Cheah has demonstrated a strong commitment to innovation throughout his career. His work has not only advanced automotive technology but has also contributed to more efficient fuel usage. His expertise in circuit design and fuel sensing technology has positioned him as a notable figure in his field.

Collaborations

Chun-Foong Cheah has collaborated with various professionals in the industry, including his coworker Nick M Johnson. Their combined efforts have led to advancements in automotive technology and fuel efficiency.

Conclusion

Chun-Foong Cheah's contributions to the field of automotive technology through his innovative patent demonstrate his dedication to improving engine efficiency and fuel composition sensing. His work continues to influence the industry positively.