IMPROVEMENT OF POWER EFFICIENCY AND OUTPUT VOLTAGE RIPPLE OF EMBEDDED DC-DC CONVERTERS WITH THREE STEP DOWN RATIOS

被引：3

作者：

Bhattacharyya, Kaushik ^{[1
]}

Kumar, P. V. Ratna ^{[1
]}

Mandal, Pradip ^{[1
]}

机构：

[1] IIT Kharagpur, Dept E&ECE, Kharagpur 721302, W Bengal, India

来源：

JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS | 2012年 / 21卷 / 01期

关键词：

Current regulation; embedded DC-DC converter; improvement of power efficiency; low output voltage ripple; nonoverlapped rotational time interleaving (NRTI) switching scheme; shoot through current elimination; three step down outputs; CAPACITOR; CHIP;

D O I：

10.1142/S0218126612500077

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper three embedded switched capacitor based DC-DC converters targeting Vdd/2, 2Vdd/3, and Vdd/3 output voltages have been designed with improved power efficiency and output voltage ripple. The performance of each of the converter is improved by nonoverlapped rotational time interleaving (NRTI) switching scheme. Current regulation scheme is included with each of the above NRTI switched capacitor converter to achieve better load and line regulation. The proposed converters are designed and simulated in a 0.18 mu m n-well CMOS process with the total flying capacitance of 330 pF and load capacitor of 50 pF. The capacitance values are kept within on-chip implementable range. The maximum power efficiency and the output voltage ripple of the integrated NRTI DC-DC converters targeted for Vdd/2, 2Vdd/3 and Vdd/3 output generation are 71.5% and 5 mV, 69.23% and 13.27 mV and 58.09% and 10.5 mV, respectively.

引用

页数：22

共 50 条

[1] An Integrated Step-Down DC-DC Converter with Low Output Voltage Ripple
Lee, Yi-Ting
Wei, Chia-Ling
Chen, Chin-Hong
ICIEA 2010: PROCEEDINGS OF THE 5TH IEEE CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS, VOL 3, 2010, : 218 - 223
[2] Output ripple analysis of switching dc-dc converters
Mihajlovic, Z
Lehman, B
Sun, CX
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2004, 51 (08) : 1596 - 1611
[3] Output ripple analysis of switching dc-dc converters
Lehman, B
Mihajlovic, Z
PESC'97: 28TH ANNUAL IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE - RECORD, VOLS I AND II, 1997, : 775 - 781
[4] On the output voltage ripple in the ideal boost and buck-boost dc-dc converters
O'Connell, RM
INTERNATIONAL JOURNAL OF ELECTRONICS, 2003, 90 (04) : 243 - 254
[5] A new approach to reducing output ripple in switched-capacitor-based step-down DC-DC converters
Han, JF
von Jouanne, A
Temes, GC
CONFERENCE RECORD OF THE 2004 IEEE INDUSTRY APPLICATIONS CONFERENCE, VOLS 1-4: COVERING THEORY TO PRACTICE, 2004, : 1115 - 1120
[6] A new approach to reducing output ripple in switched-capacitor-based step-down DC-DC converters
Han, Jifeng
von Jouanne, Annette
Temes, Gabor C.
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2006, 21 (06) : 1548 - 1555
[7] Research on output voltage ripple of Boost DC/DC converters
Liu, Shu-lin
Liu, Jian
Zhang, Jing
IMECS 2008: INTERNATIONAL MULTICONFERENCE OF ENGINEERS AND COMPUTER SCIENTISTS, VOLS I AND II, 2008, : 1458 - 1462
[8] On-line fault detection of aluminium electrolytic capacitors, in step-down DC-DC converters, using input current and output voltage ripple
Amaral, A. M. R.
Cardoso, A. J. M.
IET POWER ELECTRONICS, 2012, 5 (03) : 315 - 322
[9] High Step-Up DC-DC Converter With Minimum Output Voltage Ripple
Maheri, Hamed Mashinchi
Babaei, Ebrahim
Sabahi, Mehran
Hosseini, Seyed Hossein
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2017, 64 (05) : 3568 - 3575
[10] Technique for the reduction of output voltage ripple of switched capacitor-based DC-DC converters
Bhattacharyya, K.
Mandal, P.
IET CIRCUITS DEVICES & SYSTEMS, 2011, 5 (06) : 442 - 450

← 1 2 3 4 5 →