Location History:
- Puch'eon, KR (1998)
- Puncheon, KR (1999)
- Kyungki-do, KR (1999 - 2001)
- Bucheon, KR (2000 - 2001)
Company Filing History:
3 out of 131,500 
2 out of 4 
1 out of 354 
Years Active: 1998-2001
Title: **Inventor Spotlight: Maeng-Ho Seo from Bucheon, KR**
Introduction
Maeng-Ho Seo is a distinguished inventor hailing from Bucheon, South Korea. With a total of six patents to his name, he has made significant contributions to the fields of electronic engineering and energy efficiency. His innovations focus primarily on electronic ballasts and power factor correction, enhancing the functionality and stability of lighting systems.
Latest Patents
One of Maeng-Ho Seo's notable patents is an **electronic ballast having a stable reference voltage and a multifunction input for soft dimming and ON/OFF control**. This innovative electronic ballast is designed for illuminating lamps and features a voltage reference generator that ensures stability across varying temperatures and resistance characteristics. It integrates an ON/OFF controller and allows for dimming control through a single input terminal, utilizing a capacitor to prevent sudden changes in output frequency.
Another significant patent is his **power factor correction (PFC) controller**. This invention comprises a boost converter, an error amplification unit, a calculator, and a switching driver. The error amplification unit optimizes the output voltage by adjusting it to a specific reference voltage. The calculator plays a critical role in processing input voltages, contributing to improved energy efficiency by managing the operation of the switch based on feedback from the boost converter.
Career Highlights
Throughout his career, Maeng-Ho Seo has worked with prominent companies such as **Samsung Electronics Co., Ltd.** and **Fairfield Korea Semiconductor Ltd.** His experience in these organizations has allowed him to develop advanced technologies and has positioned him as a key figure in the development of innovative electronic solutions.
Collaborations
In his journey as an inventor, Maeng-Ho Seo has collaborated with notable colleagues including Nak-Choon Choi and Kyung-Hee Jang. Together, they have contributed to innovative projects that enhance the efficiency and functionality of electronic systems.
Conclusion
Maeng-Ho Seo's dedication to innovation has played a crucial role in advancing electronic technologies. His inventions not only address immediate needs in the industry but also pave the way for future developments in energy-efficient solutions. With a robust portfolio of patents, he stands as an impressive figure in the realm of inventors.