Title :
A design of wide input range, high efficiency rectifier for mobile wireless charging receiver
Author :
Ji-Hun Kang ; Hyung-gu Park ; Jae-Hyeong Jang ; Kang-Yoon Lee
Author_Institution :
Coll. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon, South Korea
Abstract :
This paper presents a high-efficiency Schottky diode rectifier for the mobile wireless charging receiver. A wide input range multi-mode rectifier is proposed for a magnetic resonant wireless charging system. The configuration is automatically changed based on the input AC voltage to widen the input voltage range. It is fabricated in a 0.35 um BCD process and its area is 1mm×1.5mm. When the magnitude of the input power is 4 W at 128 kHz, the Power Conversion Efficiency of the multi-mode Schottky diode rectifier is 85%, which is improved by 10% compared with that of the full-wave MOSFET rectifier.
Keywords :
Schottky diodes; magnetic resonance; mobile radio; radio receivers; rectifiers; BCD process; efficiency 85 percent; frequency 128 kHz; full-wave MOSFET rectifier; high-efficiency Schottky diode rectifier; input AC voltage; magnetic resonant wireless charging system; mobile wireless charging receiver; power 4 W; power conversion efficiency; size 0.35 mum; wide input range multimode rectifier; MOSFET; Receivers; Rectifiers; Schottky diodes; Threshold voltage; Voltage measurement; Wireless communication; Magnetic Resonant; Multi-Mode Rectifier; Power Conversion Efficiency; Wireless Charge System;
Conference_Titel :
Wireless Power Transfer Conference (WPTC), 2014 IEEE
Conference_Location :
Jeju
DOI :
10.1109/WPT.2014.6839589
