Article
The Novel Switched-Capacitor DC-DC Converter for Fast Response Time and Reduced Ripple
Proceedings of the IEEE 54th International Midwest Symposium on Circuits and Systems (2011, Seoul, South Korea)
Abstract
A novel voltage regulation scheme to control the number of multi-phase and frequency for Switched-Capacitor(SC) DC-DC converters is presented. The controller adjusts the number of interleaved phases with the size of switches. In addition, switching frequency of SC DC-DC converter is increased to reduce output ripple voltage when output load current is low. 16phase 2:1 SC DC-DC converter is designed in 45nm standard CMOS process using the proposed scheme. The converter with new control technique achieves fast response and low Vout ripple under fast varying currents. Maximum output voltage ripple(Vripple) is less than 15mV and maximum response time is less than 0.2us with 4mA. Normal Vripple is less than 2mV.
Meeting Name
IEEE 54th International Midwest Symposium on Circuits and Systems: MWSCAS (2011: Aug. 7-10, Seoul, South Korea)
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
- Control Techniques,
- Fast Response,
- Fast Response Time,
- Maximum Output,
- Maximum Response Time,
- Output Load,
- Ripple Voltage,
- SC DC-DC Converters,
- Standard CMOS Process,
- Switched Capacitor,
- Switched-Capacitor DC-DC Converter,
- Voltage Regulation Scheme,
- Capacitors,
- CMOS Integrated Circuits,
- Frequency Converter Circuits,
- HVDC Power Transmission,
- Response Time (Computer Systems),
- Voltage Regulators,
- DC-DC Converters
International Standard Book Number (ISBN)
978-1612848570; 978-1612848563
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2011 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
Publication Date
8-1-2011
Publication Date
01 Aug 2011
Disciplines
Citation Information
In-Seok Jung, Yong-Bin Kim and Minsu Choi. "The Novel Switched-Capacitor DC-DC Converter for Fast Response Time and Reduced Ripple" Proceedings of the IEEE 54th International Midwest Symposium on Circuits and Systems (2011, Seoul, South Korea) (2011) ISSN: 1548-3746; 1558-3899 Available at: http://works.bepress.com/minsu-choi/3/