Tae-Hwang Kong

TL;DR: A transformer-based self-starting boost converter architecture with low-power maximum power point tracking (MPPT) control for low-voltage thermoelectric generator applications and an improved MPPT sensing method is proposed to simplify the circuit.

TL;DR: This work proposes an alternative resonance technique through which the PZT output swing can be boosted as high as CMOS devices can sustain and is applied to a dual-energy-sourced (PZT and TEG) energy-harvesting interface (EHI) as a battery charger.

TL;DR: To reduce the number of external capacitors, one power voltage level from the PMIC is converted into a variety of power voltage levels inside the mobile AP and simplifies PCB routes, integrated low-dropout regulators (LDOs) are preferred in mobile APs.

TL;DR: In this paper, a loop-free autocalibration technique for self-balancing of flying capacitors in a three-level dc-dc buck converter was proposed, which utilizes a dual-path power stage with balancing switches that adaptively short flying capacitor voltages at de-energizing phases.

TL;DR: A DC-DC converter, which tracks minimum power loss under various conditions, is presented, which has high reliability against process variation and a maximum power efficiency of 91% at the switching frequency of 1 MHz.