Location History:
- Taoyuan, TW (2011)
- Taoyuan County, TW (2012)
Company Filing History:
Years Active: 2011-2012
Title: Chih-Chi Chang: Innovator in Power Conversion Technology
Introduction
Chih-Chi Chang is a notable inventor based in Taoyuan County, Taiwan. He has made significant contributions to the field of power conversion technology, holding a total of 2 patents. His work focuses on enhancing the efficiency and performance of power converters.
Latest Patents
Chang's latest patents include innovative designs that improve the operation of power converters. One of his patents is titled "Control circuit having off-time modulation to operate power converter at quasi-resonance and in continuous current mode." This invention develops a control circuit that adaptively operates a power converter at quasi-resonance and in continuous current mode to achieve high efficiency. The control circuit features a PWM circuit that generates a switching signal to switch a transformer, along with a signal generation circuit that produces a ramp signal and a pulse signal. The feedback circuit produces a feedback signal based on the output load of the power converter, while a detection circuit generates a valley signal in response to the transformer's waveform.
Another significant patent is the "Switching control circuit for a switching power converter." This invention involves a switching control circuit that is coupled to a switching device and an auxiliary winding of a transformer. It includes a voltage receiver that transforms a reflected voltage signal into a peak voltage signal, a comparing unit that outputs a comparison result, and a propagation delay circuit that generates a PWM signal to turn on the switching device after a delay time.
Career Highlights
Chih-Chi Chang is currently employed at System General Corporation, where he continues to innovate in the field of power electronics. His work has been instrumental in developing technologies that enhance the efficiency of power converters.
Collaborations
Chang has collaborated with notable colleagues, including Ying-Chieh Su and Ta-Yung Yang, contributing to advancements in their shared field of expertise.
Conclusion
Chih-Chi Chang's contributions to power conversion technology through his patents and work at System General Corporation highlight his role as an influential inventor. His innovative designs continue to push the boundaries of efficiency in power electronics.