Zero-steady-state-error compensation method in application of peak current mode buck converter with fast transient response
- Author(s): Yunpeng Yao 1 ; Shen Xu 1 ; Shengli Lu 1 ; Weifeng Sun 1
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View affiliations
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Affiliations:
1:
National ASIC System Engineering Research Center, Southeast University, Nanjing 210096, Jiangsu, People's Republic of China
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Affiliations:
1:
National ASIC System Engineering Research Center, Southeast University, Nanjing 210096, Jiangsu, People's Republic of China
- Source:
Volume 8, Issue 5,
May 2015,
p.
647 – 655
DOI: 10.1049/iet-pel.2014.0436 , Print ISSN 1755-4535, Online ISSN 1755-4543
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© The Institution of Engineering and Technology
Received
29/05/2014,
Accepted
11/11/2014,
Revised
26/10/2014,
Published
11/02/2015
A novel zero-steady-state-error (ZSSE) compensation technique based on an accurate small signal model of peak current mode buck converter is proposed for optimising the microprocessors with low power consumption needing high-definition voltage scaling. This technique eliminates the steady-state error of output voltage without negatively affecting the transient response. The main parasitic parameters of the buck converter are taken into consideration to design an excellent ZSSE compensation module; the relationships between the parameters of the compensation circuit and parameters of the other parts of the converter have been derived in this study. This technique has been implemented on a prototype. The validity of this method is shown and confirmed by test results.
Inspec keywords: microprocessor chips; power convertors; error compensation; low-power electronics; transient response; power aware computing
Other keywords: parasitic parameter; low power consumption; ZSSE compensation module; zero-steady-state-error compensation method; microprocessor optimization; small signal model; high-definition voltage scaling; compensation circuit; fast transient response; peak current mode buck converter; steady-state error elimination
Subjects: Electrical/electronic equipment (energy utilisation); Power electronics, supply and supervisory circuits; Microprocessors and microcomputers
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