Location History:
- San Jose, CA (US) (1987 - 1993)
- Saratoga, CA (US) (1992 - 1998)
Company Filing History:
Years Active: 1987-1998
Title: The Innovative Contributions of Charles C. Hu
Introduction
Charles C. Hu is a notable inventor based in Saratoga, California, with a remarkable portfolio of 14 patents. His work primarily focuses on advancements in electrical engineering, particularly in relay control circuits and wall-mounted switches.
Latest Patents
One of his latest patents is a zero crossing circuit for a relay. This innovative relay control circuit includes a zero cross detector, a latch, and a delay circuit. The zero cross detector circuit is designed to detect when the voltage or current waveform on an AC power line reaches the zero crossing. The output from the zero cross detector clocks the latch, which receives a control signal at its data input. The flip-flop latches the control signal at the zero crossing point and outputs the latched signal to the delay circuit. This delay circuit is crucial as it delays the control signal for a predetermined time period, depending on the make and break times of the relay. Consequently, the relay is switched ON and OFF near the next zero crossing point of the AC voltage waveform.
Career Highlights
Throughout his career, Charles has made significant contributions to the field of electrical engineering. He has worked with reputable companies such as The Watt Stopper, Inc. and The Watt Watcher, Inc. His expertise in relay control systems has positioned him as a key figure in the industry.
Collaborations
Charles has collaborated with several professionals in his field, including Jerome M. Mix and James C. Sprout. Their combined efforts have led to advancements in various electrical engineering projects.
Conclusion
Charles C. Hu's innovative work in relay control circuits and wall-mounted switches has made a lasting impact on the field of electrical engineering. His contributions continue to influence the industry and inspire future innovations.