Chem-Lin Chen

Title: Chem-Lin Chen: Innovator in PWM Controller Technology

Introduction

Chem-Lin Chen is a notable inventor based in Taipei, California, who has made significant contributions to the field of pulse width modulation (PWM) controllers. With a total of two patents to his name, Chen's work focuses on improving load regulation and reducing acoustic noise in electronic devices.

Latest Patents

Chen's latest patents include a primary-side regulated pulse width modulation controller with improved load regulation. This invention provides a PWM controller that samples and holds a flyback voltage from the auxiliary winding of a transformer, generating a feedback voltage accordingly. The design allows for precise output voltage regulation without the need for a secondary feedback circuit. Another significant patent is a PWM controller that features a modulator aimed at saving power and reducing acoustic noise during light load and no load conditions. This innovation maintains a constant maximum on-time while moderating the bias current of the oscillator, effectively increasing the off-time of the switching period to prevent saturation of magnetic components.

Career Highlights

Throughout his career, Chem-Lin Chen has worked with reputable companies such as Systems General Corp. and System General Corporation. His experience in these organizations has contributed to his expertise in PWM technology and electronic design.

Collaborations

Chen has collaborated with notable colleagues, including Ta-Yung Yang and Jenn-Yu G Lin, who have likely contributed to his innovative projects and patents.

Conclusion

Chem-Lin Chen's contributions to PWM controller technology demonstrate his commitment to innovation and excellence in the field. His patents reflect a deep understanding of electronic systems and a drive to enhance their performance.