This inventor holds 1 USPTO granted patent. Top assignees: Electric Power Research Institute Incorporated, North Carolina State University, Tennessee Valley Authority. Active years: 2007.
Company Filing History:
1 out of 994 
1 out of 1,489 
1 out of 168 
Years Active: 2007
Title: Siriroj Sirisukprasert: Innovator in Cascaded Multi-Level Converter Technology
Introduction
Siriroj Sirisukprasert is a notable inventor based in Bangkok, Thailand. He has made significant contributions to the field of electrical engineering, particularly in the area of pulse width modulation for cascaded multi-level converters. His innovative approach addresses critical challenges in voltage balancing within semiconductor circuits.
Latest Patents
Siriroj holds a patent for a method and circuit for cascaded pulse width modulation. This invention focuses on balancing the voltage of DC links in a cascaded multi-level converter (CMC) semiconductor circuit. The method involves providing multiple H-bridge converters per phase in the CMC circuit. It utilizes a three-phase duty cycle value from the main controller to determine normalized, ceiling, and floor duty cycle values. The normalized duty cycle value and the output current of the CMC are used to ascertain the direction and polarity of capacitor current. This capacitor current is then employed to determine various output capacitor voltages. The invention culminates in a voltage summation result and direction obtained from ceiling and floor index pointers, which are used to create a combined switching table for the H-bridge converters. A pulse width modulator is then utilized to balance the voltage of the DC links, effectively eliminating DC-capacitor voltage imbalance.
Career Highlights
Throughout his career, Siriroj has worked with esteemed institutions such as North Carolina State University and Tennessee Valley Authority. His experience in these organizations has allowed him to refine his expertise in electrical engineering and contribute to groundbreaking innovations.
Collaborations
Siriroj has collaborated with notable professionals in his field, including Qin Huang and Abdel-Aty Edris. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in technology.
Conclusion
Siriroj Sirisukprasert is a distinguished inventor whose work in cascaded multi-level converter technology has made a significant impact in the field of electrical engineering. His innovative methods and collaborative efforts continue to inspire advancements in voltage balancing techniques.