A Voltage Mode PWM DC-DC Boost Converter with Adaptive Dead-time Generator for Solid-State Drives

Seung Ju Lee; Se Un Shin

doi:10.23075/jicas.2022.8.3.005

Seung Ju Lee Ulsan National Institute of Science and Technology https://orcid.org/0000-0002-8100-2280
Se Un Shin Ulsan National Institute of Science and Technology https://orcid.org/0000-0002-3265-6624

DOI: https://doi.org/10.23075/jicas.2022.8.3.005

Keywords: Adaptive dead-time generator, Boost converter, Phase margin, Solid-state drives

Abstract

This paper proposes a voltage mode PWM DC-DC boost converter for Solid-State Drive (SSD). SSD has recently been widely used to replace hard disk drives (HDD) in various systems. In order to drive SSD, a wide range of output voltages and high-efficiency voltage conversion are required. Therefore, the efficiency and stability of the boost converter are very important in each operating region. This paper presents a boost converter using type-3 compensator-based voltage mode control. It also proposed an adaptive dead-time generator to reduce efficiency reduction due to shoot-through current and diode conduction. The proposed converter is fabricated in TSMC 0.18um BCD process. In the simulation, a phase margin (PM) of 40 degrees or more was achieved in a wide output power voltage range of 5.5V-20V with a peak efficiency of 93.2%.

Author Biographies

Seung Ju Lee, Ulsan National Institute of Science and Technology

Seung Ju Lee received the B.S. degree in Display Engineering from Dankook University, Cheonan, South Korea, in 2021. He is currently working toward the integrated master's and Ph.D. degrees with the Department of Electrical Engineering at Ulsan National Institute of Science and Technology (UNIST), Ulsan, South Korea. His research interests include analog integrated circuit designs such as power management IC, linear regulators, switched capacitors/inductive converters, and hybrid converter topology.

Se Un Shin, Ulsan National Institute of Science and Technology

Se Un Shin received the B.S. degree in electronics engineering from Kyungpook National University, Daegu, South Korea, in 2013, and the M.S. and Ph.D. degrees in electrical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea. From 2018 to 2019, he was with the University of Michigan, Ann Arbor, MI, USA, where he was involved in the development of low power analog circuit design and automation as a Postdoctoral Associate. From 2019 to 2020, he was a Faculty with the School of Electronics and Electrical Engineering, Dankook University, Cheonan, South Korea. Since 2021, he has been with the Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, South Korea, where he is currently an Assistant Professor.

His current research interests include analog-integrated circuit design and power management IC design, energy harvesting, battery charger, wireless power transfer systems, switched capacitor/inductive converters, and hybrid converter topology.

Homepage : https://sites.google.com/view/pictuslab/