A new design of power supplies for pocket computer systems
Jian Liu
Zhiming Chen
Zhong Du
Northwest Univ., Xian;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Apr 1998
Volume: 45,
Issue: 2
On page(s): 228-235
ISSN: 0278-0046
References Cited: 8
CODEN: ITIED6
INSPEC Accession Number: 5885047
Digital Object Identifier: 10.1109/41.681221
Current Version Published: 2002-08-06
Abstract
A new design of power supply based on the idea of switched
capacitors, as applied to pocket computer systems, is presented. This
new type of power supply is inductorless and, consequently, suitable for
hybridization and even monolithic integration. The new design is also
based on distinguishing characteristics of pocket digital computer
systems, in which a switched-capacitor converter can work well, since
minimal regulation is required. The new device may enable the pocket
computer system to be powered by only one battery, resulting in a simple
topology. Two switched-capacitor converters, +12 V/-12 V, +5 V and +5
V/+12 V, -12 V, are shown, respectively, as an example for demonstrating
the basic principle and its performance. PSPICE simulation and
laboratory models show good results for this new type of power supply
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