Location History:
- Bucheon-si, KR (2009)
- Seoul, KR (2010)
Company Filing History:
Years Active: 2009-2010
Title: Sang-Hwa Jung: Innovator in Frequency Compensating Circuits
Introduction
Sang-Hwa Jung is a notable inventor based in Seoul, South Korea. He has made significant contributions to the field of electrical engineering, particularly in the development of frequency compensating circuits. With a total of 3 patents to his name, Jung continues to push the boundaries of innovation in his field.
Latest Patents
One of his latest patents is the "Mixed Type Frequency Compensating Circuit and Control Circuit." This invention discloses a mixed type frequency compensating circuit that includes an integral component sub-circuit of a voltage-amplifier-type frequency compensating circuit and a proportional component sub-circuit of a transconductance-amplifier-type frequency compensating circuit. The integral component sub-circuit amplifies an input voltage signal in a voltage mode, while the proportional component sub-circuit amplifies the input voltage signal in a current mode. This design allows the mixed type frequency compensating circuit to occupy a small area in a semiconductor integrated circuit.
Another significant patent is related to "Burst Mode Operation in a DC-DC Converter." This invention pertains to a converter and its driving method, which utilizes an input voltage to generate an output voltage through the switching of a main switch. The converter senses the current flowing to the main switch to generate a sense voltage and uses this information to control the main switch's turn-on timing. This innovative approach ensures a constant group frequency, prevents audible noise, and minimizes output voltage ripple.
Career Highlights
Sang-Hwa Jung is currently employed at Fairchild Korea Semiconductor Ltd., where he applies his expertise in circuit design and innovation. His work has been instrumental in advancing the technology used in semiconductor devices.
Collaborations
Throughout his career, Jung has collaborated with talented individuals such as Kyung-Goo Lee and Dong-Hee Kim. These collaborations have contributed to the successful development of his patents and innovations.
Conclusion
Sang-Hwa Jung is a prominent inventor whose work in frequency compensating circuits has made a significant impact in the field of electrical engineering. His innovative patents and contributions continue to shape the future of semiconductor technology.