A Current-mode DC-DC Boost Converter for Automotive LED Headlamp Driver

Woo Jin Hong; Myung Hee Lee

doi:10.23075/jicas.2020.6.3.002

Woo Jin Hong Ulsan National Institute of Science and Technology
Myung Hee Lee Ulsan National Institute of Science and Technology

DOI: https://doi.org/10.23075/jicas.2020.6.3.002

Keywords: Automotive LED headlamp driver, Current-mode control, DC-DC Boost converter

Abstract

This paper proposes a current-mode DC-DC boost converter for automotive LED headlamp driver. Recently, the trends of an evolution of the LEDs composed by huge pixel, instead of a unit of the LEDs. Therefore, the specifications of DC-DC converters would be much important to operate number of LEDs. In this paper, the current-mode boost converter is proposed to have much wider load current range than the conventional voltage-mode control method. Meanwhile, circuit implementations of building blocks for the proposed boost converter are also presented. The proposed converter has been fabricated through TSMC 0.18-μm 60 V BCD process. The converter operates at a 10 MHz high switching frequency.

Author Biographies

Woo Jin Hong, Ulsan National Institute of Science and Technology

Woo Jin Hong was born in Incheon, South Korea, in 1993. He received the B.S. degree in electrical engineering from the Ulsan National Institute of Science and Technology (UNIST), Ulsan, South Korea, in 2016, where he is currently working toward the M.S./Ph.D. combined program. His research interests include analog/mixed-signal integrated circuits, linear/switching power management integrated circuits, and in-vehicle networks for automotive electronics.

Myung Hee Lee, Ulsan National Institute of Science and Technology

Myung Hee Lee received his B.S. in Electronic Engineering from Hanyang University, Seoul, Korea, in 1984, and a M.S. in Electrical Engineering from Arizona State University, Tempe, AZ, in 1990. In 1996, he earned a Ph.D. in Electrical Engineering from Georgia Institute of Technology, Atlanta, GA. He started his industry career as a hardware engineer at Doosan Computer Corp from 1984 to 1988. From 1990 to 1991, he worked at IBM T.J. Watson Lab, Hawthorne, NY, as an engineer before he resumes his Ph.D course. In 1996, he joined Hewlett Packard (later Agilent Technology after the break-up of the company), San Jose, Ca, as a Member of Technical Staff developing IrDA transceiver ICs and Giga-bit fiber-optic transceiver ICs including 4-ch/12-ch parallel optical transceivers. Later he got promoted to an Integrating Manager managing a world-wide R&D organization responsible for various high-speed IC product development. In 2005, he joined Samsung System-LSI division as a VP, Giheung, Korea, managing Display Driver IC (DDI) Development Team. He was responsible for developing various product family such as mobile-DDI, panel-DDI, timing controller, touch sensor controller. From 2012 to 2013, he worked for Hyundai-Autron leading Automotive Semiconductor Development Center managing automotive ECUs (Electronic Control Units) and automotive IC development activities. From 2013, he has served as an Industry-University Collaboration Professor at UNIST (Ulsan National Institute of Science and Technology), Ulsan, Korea. Key area of his research includes automotive ECU architecture, innovative automotive IC architecture and implementations, various high-speed interface and various other mixed-signal IC designs.

Homepage : https://aesl.unist.ac.kr/members/professor/