Skip to main content

Advertisement

SpringerLink
Log in

A new single inductor bipolar multi-output (SIBMO) DC–DC converter driven by constant on-time with improved performance

  • Technical Paper
  • Published:
Microsystem Technologies Aims and scope Submit manuscript

Abstract

This study is dedicated to design and realization of a new single inductor bipolar multi-output (SIBMO) DC–DC converter with performance improvement. A bandgap is first designed to offer a stable input bias with capability to work against inevitable input voltage variations for avoiding possible p-n breakdowns. A new drive technique based on constant on-time (COT) is developed for the designed SIBMO with assistance from level shifters and zero current detection circuits to drive MOS devices. The designed circuit is capable of boosting input voltage 2.8 V to four bipolar outputs of +6, −6, +12 and −12 V. The COT proposed herein adopts a new technique of time multiplexing to offer stable multi-outputs with an off-chip inductor for fast switchings. This new COT is different from the conventional pulse width modulation which usually operates with fixed frequencies. The COT is particularly favorable in regards of crossing regulation and high transfer efficiency in cases of unbalanced loads. The proposed SIBMO and COT are applicable to drive systems of organic light-emitting diodes, optical sensors, and portable electronic devices, displays, etc. The designed on-chip SIBMO and COT are fabricated via the TSMC 0.25 µm high-voltage CMOS process. Experimental results clearly show the capability of the designed SIBMO chip to offer four bipolar, stabilized output voltages with a total power consumption minimized to 320 mW and the switching frequency varying from 650 to 500 kHz. Most importantly, the maximum efficiency reaches 83.1 %.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16
Fig. 17

Similar content being viewed by others

References

  • Benadero L, Moreno-Font V, Giral R, El Aroudi A (2011) Topologies and control of a class of single inductor multiple-output converters operating in continuous conduction mode. Power Electron IET 4:927–935

    Article  Google Scholar 

  • Bianco A, Adragna C, Scappatura G (2014) Enhanced constant-on-time Control for DCM/CCM boundary boost PFC pre-regulators: implementation and performance evaluation. applied power electronics conference and exposition (APEC), 2014 Twenty-Ninth Annual IEEE

  • Chae CS, Le HP, Lee KC, Cho GH, Cho GH (2009) A single-inductor step-up DC–DC switching converter with bipolar outputs for active matrix OLED mobile display panels. IEEE J Solid State Circuits 44(2):509–524

    Article  Google Scholar 

  • Chang CK, Su CH, Kao YH, Yu MH, Sauter T, Chao P (2013) A new single inductor bipolar multiple output (SIBMO) boost converter using pulse frequency modulation (PFM) control for OLED drivers and optical transducers. IEEE Sensors Conference

  • Chen CJ, Chen D, Tseng CW, Tseng CT, Chang YW, Wang KC (2011) A novel ripple-based constant on-time control with virtual inductor current ripple for buck converter with ceramic output capacitors, Applied Power Electronics Conference and Exposition (APEC), Twenty-Sixth Annual IEEE

  • Chen CM, Liao TW, Hsu KH, Hung CC (2012) A single-inductor multiple-output boost converter with freewheel charge-pump control. In: Proceedings of the ESSCIRC

  • Hajmohammadi MR, Moulod M, Joneydi Shariatzadeh O, Nourazar SS (2014) Essential reformulations for optimization of highly conductive inserts embedded into a rectangular chip exposed to a uniform heat flux. J Mech Eng Sci 228:2337–2346

    Article  Google Scholar 

  • Hayder AS, Park HG, Kim H, Lee DS, Abbasizadeh H, Lee KY (2015) A single inductor dual output synchronous high speed DC-DC boost converter using type-III compensation for low power application. IEIE Trans Smart Process Comput 4(1):44–50

    Article  Google Scholar 

  • Jing X, Mok PKT (2013) Power loss and switching noise reduction techniques for single-inductor multiple-output regulator. IEEE Trans Circuits Sys I 60(10):2788–2798

    Article  MathSciNet  Google Scholar 

  • Jing X, Mok PKT, Lee MCA (2011) A wide-load-range constant-charge-auto-hopping control single-inductor-dual-output boost regulator with minimized cross-regulation. IEEE J Solid State Circuits 46(10):2350–2362

    Article  Google Scholar 

  • Ker MD, Chen JS, Chu CY (2004) A CMOS bandgap reference circuit for SUB-1-V operation without using extra low-threshold-voltage device. In: Proceedings of the 2004 international symposium on circuits and systems, vol 1. pp 41–44. doi:10.1109/ISCAS.2004.1328126

  • Le HP, Chae CS, Lee KC, Wang SW, Cho GH, Cho GH (2007) A single inductor switching DC–DC converter with five outputs and ordered power-distributive control. IEEE J Solid State Circuits 42(12):2076–2714

    Article  Google Scholar 

  • Lee YH, Yang YY, Wang SJ, Chen KH, Lin YH, Chen YK, Huang CC (2011) Interleaving energy-conservation mode (IECM) control in single-inductor dual-output (SIDO) step-down converters with 91% peak efficiency. IEEE J Solid State Circuits 46(4):904–915

    Article  Google Scholar 

  • Ma D, Ki WH, Tsui CY, Mok PKT (2001) A 1.8 V single-inductor dual-output switching converter for power reduction techniques. In: Symposium on VLSI circuits. Digest of technical papers. IEEE, Kyoto, Japan, pp 137–140

  • Ma D, Ki WH, Tsui CY, Mok PKT (2003) Single-inductor multiple-output switching converters with time-multiplexing control in discontinuous mode. IEEE J Solid State Circuits 38(1):89–100

    Article  Google Scholar 

  • Mok PKT (2013) Single-inductor-multiple-output DC–DC converter design. IEEE Custom Integrated Circuits Conference (CICC)

  • Patra P, Patra A, Misra N (2012) A single-inductor multiple-output switcher with simultaneous buck, boost, and inverted outputs. IEEE Trans Power Electron 27(4):1936–1951

    Article  Google Scholar 

  • Patra P, Ghosh J, Patra A (2013) Control scheme for reduced cross-regulation in single-inductor multiple-output DC–DC converters. IEEE Trans Ind Electron 60(11):5095–5104

    Article  Google Scholar 

  • Seol KS, Woo YJ, Cho GH, Gho GH, Lee JW (2009) A synchronous multioutput step-up/down DC–DC converter with return current control. Express Briefs IEEE Trans Circuits Sys II 56(8):210–214

    Article  Google Scholar 

  • Wei IC, Chen D, Lin YC, Chen CJ (2012) The stability modeling of ripple-based constant on-time control schemes used in the converters operating in DCM. International Conference on Renewable Energy Research and Applications (ICRERA)

  • Xu W, Li Y, Gong X, Hong Z, Killat D (2010) A dual-mode single-inductor dual-output switching converter with small ripple. IEEE Trans Power Electron 25(3):614–623

    Article  Google Scholar 

Download references

Acknowledgments

This work was supported by Sitronix, Crop., Ministry of Science and Technology, Taiwan, Project Nos. MOST 104-2923-M-009-002 and 103-2622-E-009-014-CC3; also in part by UST-UCSD International Center of Excellence in Advanced Bioengineering sponsored by the Ministry of Science and Technology I-RICE Program under Grant Number: MOST 103-2911-I-009-101.

Author information

Authors and Affiliations

  1. Department of Electrical Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan

    Paul C. P. Chao, Chun-Kai Chang, Chun-Kai Cheng & Trong-Hieu Tran

  2. Center for Integrated Sensor Systems, Danube University Krems, Wiener Neustadt, Austria

    Thilo Sauter

  3. TU Wien, Institute of Computer Technology, Vienna, Austria

    Thilo Sauter

Authors
  1. Paul C. P. Chao
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Chun-Kai Chang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Chun-Kai Cheng
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Trong-Hieu Tran
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Thilo Sauter
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Paul C. P. Chao.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Chao, P.C.P., Chang, CK., Cheng, CK. et al. A new single inductor bipolar multi-output (SIBMO) DC–DC converter driven by constant on-time with improved performance. Microsyst Technol 22, 1405–1418 (2016). https://doi.org/10.1007/s00542-016-2868-5

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00542-016-2868-5

Keywords

Search

Navigation