Po-Jung Chang

Title: Po-Jung Chang: Innovator in Low-Dropout Regulator Technology

Introduction

Po-Jung Chang is a notable inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of electronics, particularly in the development of low-dropout regulators (LDOs). His innovative work focuses on enhancing power-supply rejection ratios and reverse isolation in electronic circuits.

Latest Patents

One of Po-Jung Chang's key patents is titled "Reconfigurable series-shunt LDO." This invention describes a low-dropout regulator capable of providing a high power-supply rejection ratio (PSRR) and good reverse isolation. The LDO includes core circuitry and reverse isolation circuitry. The core circuitry features a PSRR circuitry coupled to an output node, designed to deliver high PSRR at the output. The reverse isolation circuitry is configured to ensure good reverse isolation at the output node by responding to ripples. Additionally, this circuitry is designed with a bandwidth that exceeds that of the core circuitry, allowing for fast transient response. The reverse isolation circuitry can be configured or reconfigured to optimize performance, balancing power consumption and leakage current.

Career Highlights

Po-Jung Chang is currently employed at MediaTek Corporation, a leading global semiconductor company. His work at MediaTek has allowed him to apply his innovative ideas in practical applications, contributing to advancements in electronic components.

Collaborations

Throughout his career, Po-Jung Chang has collaborated with talented individuals such as Chih-Hong Lou and Yan-Jiun Chen. These collaborations have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Po-Jung Chang's contributions to the field of low-dropout regulators exemplify his commitment to innovation in electronics. His patent on the reconfigurable series-shunt LDO showcases his ability to address complex challenges in power management. Through his work at MediaTek Corporation and collaborations with fellow inventors, he continues to make a significant impact in the industry.