Wen-Yen Pen

Title: Innovations by Inventor Wen-Yen Pen

Introduction

Wen-Yen Pen is a notable inventor based in Taipei, Taiwan. He has made significant contributions to the field of power supply technology, holding 2 patents that showcase his innovative approach to electrical engineering.

Latest Patents

One of his latest patents is titled "Methods for meeting holdup time requirement with minimal bulk capacitance." This patent discloses a method of dynamical adjustment for a power supply. The method aims to lower the minimum bulk capacitor voltage to the maximum extent by increasing the switching frequency or the Over-Current Protection (OCP) trip point during the holdup time. This allows for an extended holdup time or a downsized bulk capacitor while keeping all other parameters unchanged. The proposed method is applicable to a wide variety of power converters.

Another significant patent by Wen-Yen Pen is the "Flyback converter with no need for the auxiliary winding." This invention introduces an Auxiliary-Free High-Side Driven Secondary-Side Regulated (AF-HSD-SSR) flyback converter. It includes an AC-to-DC rectification unit, an input capacitor, a switching unit, a current-sensing resistor, an Auxiliary-Free flyback transformer, an output rectifier, an output capacitor, a PWM controller, and a SSR unit. The AF flyback transformer features a primary winding split into two halves. The switching unit is positioned at the high side of the primary winding, and the PWM controller, in collaboration with the SSR unit, drives the switching unit based on the required voltage and current sense signals. This design ensures safe and efficient voltage conversion and power delivery within specifications, while the first half of the primary winding provides a continuous working voltage supply after startup, eliminating the need for an auxiliary winding.

Career Highlights

Wen-Yen Pen is currently employed at Inno-Tech Co., Ltd., where he continues to innovate in the field of power supply solutions. His work has garnered attention for its practical applications and efficiency improvements in power converters.

Collaborations

Wen-Yen Pen collaborates with talented individuals such as Chih-Liang Wang and Ching-Sheng Yu, who contribute to the innovative environment at Inno-Tech Co., Ltd.

Conclusion

Wen-Yen Pen's contributions to power supply technology through his patents reflect his commitment to innovation and efficiency.