Location History:
- Neihu Taipei, TW (2002 - 2005)
- Taoyuan Shien, TW (2003 - 2006)
- TaiPei, TW (2004 - 2006)
- Taoyuan, TW (2006)
- Taoyuan Hsien, TW (2005 - 2009)
Company Filing History:
Years Active: 2002-2009
Title: Innovations of Alpha J Zhang
Introduction
Alpha J Zhang is a prominent inventor based in Neihu Taipei, Taiwan. He has made significant contributions to the field of power supply technology, holding a total of 17 patents. His work focuses on enhancing the efficiency and performance of power supply systems.
Latest Patents
Among his latest innovations is the "Time delay control scheme for a power supply with multiple outputs." This invention provides a time delay synchronous control scheme for a power supply that features multiple outputs and tight output regulations. The design includes a front-end DC/DC converter with current mode output, which can be either an LLC Series Resonant converter or a flyback converter. Additionally, it incorporates one or several post buck converters directly cascaded from the output capacitor of the front-end DC/DC converter. The proposed time delay synchronous control circuit eliminates the conventional input filter of the post buck converters and reduces the ripple current on the output capacitor of the front-end DC/DC converter, resulting in high efficiency for the overall architecture.
Another notable patent is the "Variable frequency PWM controller circuit." This invention discloses a circuit that generates a variable frequency pulse width modulation (VF PWM) signal. Unlike conventional PWM controllers, the frequency and duty cycle of the output PWM signal vary simultaneously with the error-amplified voltage of the feedback loop. As the error-amplified voltage increases, the duty cycle decreases along with the frequency. This allows for the stable generation of a very low duty cycle PWM signal at a low frequency.
Career Highlights
Alpha J Zhang is currently employed at Delta Electronics, Inc., where he continues to innovate and develop advanced power supply solutions. His expertise in power electronics has positioned him as a key figure in the industry.
Collaborations
He has collaborated with notable coworkers, including Zhongwei Ke and Hongjian Gan, contributing to various projects and advancements in power supply technology.
Conclusion
Alpha J Zhang's contributions to the field of power supply technology through his innovative patents demonstrate his commitment to enhancing efficiency and performance. His work continues to influence the industry and pave the way for future advancements.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.