Reset-sensing quasi-V2 single-inductor multiple-output buck converter with reduced cross-regulation

Albert T.L. Lee; Siew-Chong Tan; S. Y. (Ron) Hui; Philip C.H. Chan; Johnny K.O. Sin

doi:10.1109/APEC.2015.7104461

Reset-sensing quasi-V² single-inductor multiple-output buck converter with reduced cross-regulation

Albert T.L. Lee
, Siew-Chong Tan
, S. Y. (Ron) Hui
, Philip C.H. Chan
, Johnny K.O. Sin

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

3 Citations (Scopus)

Abstract

This paper proposes a reset-sensing quasi-V² single-inductor multiple-output (SIMO) converter with minimal cross-regulation. The conventional quasi-V² sensing scheme in SIMO converters suffers from serious cross-regulation which is primarily induced by the load differentiation with unbalanced loads. It is shown that the proposed reset-sensing quasi-V² control scheme can significantly reduce cross-regulation by completely discharging the feed-forward sensing node to zero volts during the idle phase in Discontinuous Conduction Mode (DCM). The cross-regulation with the conventional quasi- V² single-inductor dual-output (SIDO) converter for a load current step of 150 mA is experimentally verified to be more than 1.25 mV/mA. By employing the proposed quasi- V² control method, the experimental results demonstrate that the cross-regulation for a load current step of 150 mA is significantly reduced to within 0.087 mV/mA. Hence, with the proposed scheme, a load transient in one output will have a minimal effect on the DC operating point of another output. This enables separate current control at each individually-driven output of a SIMO converter. © 2015 IEEE.

Original language	English
Title of host publication	2015 IEEE Applied Power Electronics Conference and Exposition – APEC 2015 proceedings
Publisher	IEEE
Pages	935-940
ISBN (Electronic)	9781479967353
ISBN (Print)	9781479967360
DOIs	https://doi.org/10.1109/APEC.2015.7104461
Publication status	Published - 2015
Externally published	Yes
Event	30th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2015) - Charlotte Convention Center , Charlotte, United States Duration: 15 Mar 2015 → 19 Mar 2015 http://www.apec-conf.org

Publication series

Name	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
ISSN (Print)	1048-2334

Conference

Conference	30th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2015)
Place	United States
City	Charlotte
Period	15/03/15 → 19/03/15
Internet address	http://www.apec-conf.org

Funding

This work is supported by the Hong Kong Research Grant Council under the Theme-based Research Project: T22- 715/12-N.

Research Keywords

Cross-Regulation
Discontinuous Conduction Mode (DCM)
Reset-Sensing Quasi-V2 Control
Single-Inductor Multiple-Output (SIMO)

RGC Funding Information

RGC-funded

Access Output

10.1109/APEC.2015.7104461

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

Lee, A. T. L., Tan, S.-C., Hui, S. Y., Chan, P. C. H., & Sin, J. K. O. (2015). Reset-sensing quasi-V² single-inductor multiple-output buck converter with reduced cross-regulation. In 2015 IEEE Applied Power Electronics Conference and Exposition – APEC 2015 proceedings (pp. 935-940). (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). IEEE. https://doi.org/10.1109/APEC.2015.7104461

Lee, Albert T.L. ; Tan, Siew-Chong ; Hui, S. Y. (Ron) et al. / Reset-sensing quasi-V² single-inductor multiple-output buck converter with reduced cross-regulation. 2015 IEEE Applied Power Electronics Conference and Exposition – APEC 2015 proceedings. IEEE, 2015. pp. 935-940 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

@inproceedings{b1edffef46b9445084743e42c6712393,

title = "Reset-sensing quasi-V2 single-inductor multiple-output buck converter with reduced cross-regulation",

abstract = "This paper proposes a reset-sensing quasi-V2 single-inductor multiple-output (SIMO) converter with minimal cross-regulation. The conventional quasi-V2 sensing scheme in SIMO converters suffers from serious cross-regulation which is primarily induced by the load differentiation with unbalanced loads. It is shown that the proposed reset-sensing quasi-V2 control scheme can significantly reduce cross-regulation by completely discharging the feed-forward sensing node to zero volts during the idle phase in Discontinuous Conduction Mode (DCM). The cross-regulation with the conventional quasi- V2 single-inductor dual-output (SIDO) converter for a load current step of 150 mA is experimentally verified to be more than 1.25 mV/mA. By employing the proposed quasi- V2 control method, the experimental results demonstrate that the cross-regulation for a load current step of 150 mA is significantly reduced to within 0.087 mV/mA. Hence, with the proposed scheme, a load transient in one output will have a minimal effect on the DC operating point of another output. This enables separate current control at each individually-driven output of a SIMO converter. {\textcopyright} 2015 IEEE.",

keywords = "Cross-Regulation, Discontinuous Conduction Mode (DCM), Reset-Sensing Quasi-V2 Control, Single-Inductor Multiple-Output (SIMO)",

author = "Lee, \{Albert T.L.\} and Siew-Chong Tan and Hui, \{S. Y. (Ron)\} and Chan, \{Philip C.H.\} and Sin, \{Johnny K.O.\}",

year = "2015",

doi = "10.1109/APEC.2015.7104461",

language = "English",

isbn = "9781479967360",

series = "Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC",

publisher = "IEEE",

pages = "935--940",

booktitle = "2015 IEEE Applied Power Electronics Conference and Exposition – APEC 2015 proceedings",

address = "United States",

note = "30th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2015) ; Conference date: 15-03-2015 Through 19-03-2015",

url = "http://www.apec-conf.org",

}

Lee, ATL, Tan, S-C , Hui, SY, Chan, PCH & Sin, JKO 2015, Reset-sensing quasi-V² single-inductor multiple-output buck converter with reduced cross-regulation. in 2015 IEEE Applied Power Electronics Conference and Exposition – APEC 2015 proceedings. Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, IEEE, pp. 935-940, 30th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2015), Charlotte, United States, 15/03/15. https://doi.org/10.1109/APEC.2015.7104461

Reset-sensing quasi-V² single-inductor multiple-output buck converter with reduced cross-regulation. / Lee, Albert T.L.; Tan, Siew-Chong ; Hui, S. Y. (Ron) et al.
2015 IEEE Applied Power Electronics Conference and Exposition – APEC 2015 proceedings. IEEE, 2015. p. 935-940 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Reset-sensing quasi-V2 single-inductor multiple-output buck converter with reduced cross-regulation

AU - Lee, Albert T.L.

AU - Tan, Siew-Chong

AU - Hui, S. Y. (Ron)

AU - Chan, Philip C.H.

AU - Sin, Johnny K.O.

PY - 2015

Y1 - 2015

N2 - This paper proposes a reset-sensing quasi-V2 single-inductor multiple-output (SIMO) converter with minimal cross-regulation. The conventional quasi-V2 sensing scheme in SIMO converters suffers from serious cross-regulation which is primarily induced by the load differentiation with unbalanced loads. It is shown that the proposed reset-sensing quasi-V2 control scheme can significantly reduce cross-regulation by completely discharging the feed-forward sensing node to zero volts during the idle phase in Discontinuous Conduction Mode (DCM). The cross-regulation with the conventional quasi- V2 single-inductor dual-output (SIDO) converter for a load current step of 150 mA is experimentally verified to be more than 1.25 mV/mA. By employing the proposed quasi- V2 control method, the experimental results demonstrate that the cross-regulation for a load current step of 150 mA is significantly reduced to within 0.087 mV/mA. Hence, with the proposed scheme, a load transient in one output will have a minimal effect on the DC operating point of another output. This enables separate current control at each individually-driven output of a SIMO converter. © 2015 IEEE.

AB - This paper proposes a reset-sensing quasi-V2 single-inductor multiple-output (SIMO) converter with minimal cross-regulation. The conventional quasi-V2 sensing scheme in SIMO converters suffers from serious cross-regulation which is primarily induced by the load differentiation with unbalanced loads. It is shown that the proposed reset-sensing quasi-V2 control scheme can significantly reduce cross-regulation by completely discharging the feed-forward sensing node to zero volts during the idle phase in Discontinuous Conduction Mode (DCM). The cross-regulation with the conventional quasi- V2 single-inductor dual-output (SIDO) converter for a load current step of 150 mA is experimentally verified to be more than 1.25 mV/mA. By employing the proposed quasi- V2 control method, the experimental results demonstrate that the cross-regulation for a load current step of 150 mA is significantly reduced to within 0.087 mV/mA. Hence, with the proposed scheme, a load transient in one output will have a minimal effect on the DC operating point of another output. This enables separate current control at each individually-driven output of a SIMO converter. © 2015 IEEE.

KW - Cross-Regulation

KW - Discontinuous Conduction Mode (DCM)

KW - Reset-Sensing Quasi-V2 Control

KW - Single-Inductor Multiple-Output (SIMO)

UR - https://www.scopus.com/pages/publications/84937900238

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84937900238&origin=recordpage

U2 - 10.1109/APEC.2015.7104461

DO - 10.1109/APEC.2015.7104461

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 9781479967360

T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

SP - 935

EP - 940

BT - 2015 IEEE Applied Power Electronics Conference and Exposition – APEC 2015 proceedings

PB - IEEE

T2 - 30th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2015)

Y2 - 15 March 2015 through 19 March 2015

ER -

Lee ATL, Tan SC , Hui SY, Chan PCH, Sin JKO. Reset-sensing quasi-V² single-inductor multiple-output buck converter with reduced cross-regulation. In 2015 IEEE Applied Power Electronics Conference and Exposition – APEC 2015 proceedings. IEEE. 2015. p. 935-940. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). Epub 2015 May 11. doi: 10.1109/APEC.2015.7104461