Hoang Quoc Duong

Title: Hoang Quoc Duong: Innovator in Voltage Regulation Technology

Introduction

Hoang Quoc Duong is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of voltage regulation technology, holding a total of 4 patents. His work focuses on enhancing the efficiency and performance of electronic circuits.

Latest Patents

One of his latest patents is a regulator circuit designed for reducing output ripple. This innovative circuit includes an operational amplifier, a buffer, a power transistor, a first feedback circuit, a current sensor, and a second feedback circuit. The operational amplifier drives a first node with a voltage generated by amplifying the difference between an input voltage and a feedback voltage. The buffer then drives a second node with a voltage generated by buffering the first voltage. The power transistor plays a crucial role in managing the supply voltage, while the current sensor generates a sensing current based on the second voltage. The second feedback circuit enhances the speed at which the ripple is reduced by providing feedback currents to the third node.

Another notable patent is a voltage regulator aimed at suppressing overshoot and undershoot. This regulator includes an error amplifier that amplifies the difference between a reference voltage and a feedback voltage, generating an amplified voltage. A power transistor connects the voltage supply to the output node, while a buffer generates the gate voltage based on the amplified voltage. A voltage divider creates the feedback voltage based on the output voltage, and a control circuit connects the output node to the ground based on the output and gate voltages.

Career Highlights

Hoang Quoc Duong is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate in the field of electronic engineering. His work has been instrumental in developing advanced voltage regulation technologies that are essential for modern electronic devices.

Collaborations

He collaborates with talented coworkers, including Hyun Seok Shin and Dong Jin Keum, who contribute to the innovative projects at Samsung Electronics.

Conclusion

Hoang Quoc Duong is a key figure in the realm of voltage regulation technology, with a proven track record of innovation and collaboration. His contributions significantly impact the efficiency of electronic circuits, making him a valuable asset to the field.