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Paper Abstract and Keywords
Presentation 2006-05-19 13:30
Low-Ripple-Voltage and High-Speed Control System With MEMS Technology for Regulating Load of Switching Regulators
Masashi Kono, Zhang Ting, Liu Aiyan, Keigo Kimura, Haruo Kobayashi, Yasunori Kobori (Gunma Univ.) EE2006-6
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents new approarches to creating high-performance control systems for DC-DC converters (switching regulators) targeted for microprocessors power supply applications.Microprocessors power supply circuits demand both low-ripple-voltage in the steady state (stability)
and fast response for large load changes.However, since in general stability and fast response are trade-off in control systems, it is
difficult to satisfy both simultaneously with conventional approaches.
(i) First we propose a completely different method which uses a variable inductor and a variable capacitor inside the regulator; the inductor and capacitor values are automatically varied so that they are large in the steady state to minimize ripple, and small for fast response when the load current changes rapidly.The variable inductor can be realized with parallel or series inductors connected a MOSFET switch. Also the variable inductor as well as the variable capacitor may be realized
with MEMS (Micro Electro Mechanical Systems) technology.The load regulation detection circuit (which senses load current change) uses a transformer, a diode-bridge and an operational amplifier.(ii) We also propose to use a servo control technique in a conventional PWM controller.
We have performed SPICE and CoventorWare simulation, and examined the effectiveness of the proposed methods.
Keyword (in Japanese) (See Japanese page) 
(in English) Switching Regulator / Microprocessor / Variable Inductor / Variable Capacitor / MEMS / / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 53, EE2006-6, pp. 31-36, May 2006.
Paper # EE2006-6 
Date of Issue 2006-05-12 (EE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EE2006-6

Conference Information
Committee EE IEE-IEA  
Conference Date 2006-05-19 - 2006-05-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EE 
Conference Code 2006-05-EE-IEE-IEA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Low-Ripple-Voltage and High-Speed Control System With MEMS Technology for Regulating Load of Switching Regulators 
Sub Title (in English)  
Keyword(1) Switching Regulator  
Keyword(2) Microprocessor  
Keyword(3) Variable Inductor  
Keyword(4) Variable Capacitor  
Keyword(5) MEMS  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Masashi Kono  
1st Author's Affiliation Gunma University (Gunma Univ.)
2nd Author's Name Zhang Ting  
2nd Author's Affiliation Gunma University (Gunma Univ.)
3rd Author's Name Liu Aiyan  
3rd Author's Affiliation Gunma University (Gunma Univ.)
4th Author's Name Keigo Kimura  
4th Author's Affiliation Gunma University (Gunma Univ.)
5th Author's Name Haruo Kobayashi  
5th Author's Affiliation Gunma University (Gunma Univ.)
6th Author's Name Yasunori Kobori  
6th Author's Affiliation Gunma University (Gunma Univ.)
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Speaker Author-1 
Date Time 2006-05-19 13:30:00 
Presentation Time 30 minutes 
Registration for EE 
Paper # EE2006-6 
Volume (vol) vol.106 
Number (no) no.53 
Page pp.31-36 
#Pages 6 
Date of Issue 2006-05-12 (EE) 

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