By Topic

New Li-Ion Battery Charger Based on Charge-Pump Techniques

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Yuh-shyan Hwang ; Department of Electronic Engineering, National Taipei University of Technology, Taipei, Taiwan, China. hys@en.ntut.edu.tw ; Shu-chen Wang ; Fong-cheng-yang ; Jiann-jong Chen
more authors

This paper presents a new Li-ion battery charger using charge-pump techniques. It has small chip size and simple structure. Besides, the proposed charger provides basic functions with voltage and current detecting, end-of-charge detecting and automatic charging speed control. The charger is operated in mixed method and supported from trickle/large constant-current mode to constant-voltage mode with different charging rates. This charger is implemented in TSMC 0.35 mum CMOS process with 5 V power supply. Its output voltage is over or equal to 4.2 V and maximum charging current reaches 700 mA. It has 837 mW chip power dissipation and 67.89% power efficiency and chip area is 1.455times1.348 mm2 only

Published in:

2006 International Conference on Communications, Circuits and Systems  (Volume:4 )

Date of Conference:

25-28 June 2006