50 MHz dual-mode buck DC-DC converter

Zhang Zhang; Xing Wang; Wencheng Yu; Ye Tan; Yizhong Yang; Guangjun Xie

doi:10.1088/1674-4926/37/8/085002

J. Semicond. > 2016, Volume 37 > Issue 8 > 085002

SEMICONDUCTOR INTEGRATED CIRCUITS

50 MHz dual-mode buck DC-DC converter

Zhang Zhang, Xing Wang, Wencheng Yu, Ye Tan, Yizhong Yang and Guangjun Xie

+ Author Affiliations

Corresponding author: Xie Guangjun, Email: gjxie8005@hfut.edu.cn

DOI: 10.1088/1674-4926/37/8/085002

Abstract: A 50 MHz 1.8/0.9 V dual-mode buck DC-DC converter is proposed in this paper. A dual-mode control for high-frequency DC-DC converter is presented to enhance the conversion efficiency of light-load in this paper. A novel zero-crossing detector is proposed to shut down synchronous rectification transistor NMOS when the inductor crosses zero, which can decrease the power loss caused by reverse current and the trip point is adjusted by regulating IBIAS (BIAS current). A new logic control for pulse-skipping modulation loop is also presented in this paper, which has advantages of simple structure and low power loss. The proposed converter is realized in SMIC 0.18μm 1-poly 6-metal mixed signal CMOS process. With switching loss, conduction loss and reverse current related loss optimized, an efficiency of 57% is maintained at 10 mA, and a peak efficiency of 71% is measured at nominal operating conditions with a voltage conversion of 1.8 to 0.9 V.

Key words: dual-mode buck DC-DC converter, zero-cross detection

References

[1]	Li Yajun, Lai Xinquan, Ye Qiang, et al. High efficiency and low electromagnetic interference boost DC-DC converter. Journal of Semiconductors, 2014, 35(4): 045002 doi: 10.1088/1674-4926/35/4/045002
[2]	Wang Qing, Chen Ning, Xu Shen, et al. A novel trajectory prediction control for proximate time-optimal digital control DC-DC converters. Journal of Semiconductors, 2014, 35(9): 095010 doi: 10.1088/1674-4926/35/9/095010
[3]	Jiang Jinguang, Huang Fei, Xiong Zhihui. Adaptive switching frequency buck DC-DC converter with high-accuracy on-chip current sensor. Journal of Semiconductors, 2015, 36(5): 055005 doi: 10.1088/1674-4926/36/5/055005
[4]	He Anlin, Guo Gang, Shi Shuting, et al. Experimental research of heavy ion and proton induced single event effects for a Bi-CMOS technology DC/DC converter. Journal of Semiconductors, 2015, 36(11): 115010 doi: 10.1088/1674-4926/36/11/115010
[5]	Jiang Jinguang, Tan Gaojian, Zhang Zeyu, et al. A novel dimmable LED driver with soft-start and UVLO circuits. Journal of Semiconductors, 2015, 36(2): 025004 doi: 10.1088/1674-4926/36/2/025004
[6]	Ahn Y, Nam H, Roh J. A 50-MHz fully integrated low-swing buck converter using packaging inductors. IEEE Trans Power Electron, 2012, 27(10): 4347 doi: 10.1109/TPEL.2012.2192136
[7]	Huang C, Mok P K T. An 84.7% Efficiency 100-MHz package bondwire-based fully integrated buck converter with precise DCM operation and enhanced light-load efficiency. IEEE J Solid-State Circuits, 2013, 48(11): 2595 doi: 10.1109/JSSC.2013.2274826
[8]	Khatri H, Gudem P S, Larson L E. Integrated RF interference suppression filter design using bond-wire inductors. IEEE Trans Microwave Theory Tech, 2008, 56(5): 1024 doi: 10.1109/TMTT.2008.921297
[9]	Abedinpour S, Bakkaloglu B, Kiaei S. A 65MHz switching rate, two-stage interleaved synchronous buck converter with fully integrated output filter. 2006 IEEE International Symposium on Circuits and Systems, 2006: 4 http://cn.bing.com/academic/profile?id=2142085548&encoded=0&v=paper_preview&mkt=zh-cn
[10]	Bathily M, Allard B, Hasbani F. A 200-MHz integrated buck converter with resonant gate drivers for an RF power amplifier. IEEE Trans Power Electron, 2012, 27(2): 610 doi: 10.1109/TPEL.2011.2119380
[11]	Alimadadi M, Sheikhaei S, Lemieux G, et al. A fully integrated 660 MHz low-swing energy-recycling DC-DC converter. IEEE Trans Power Electron, 2009, 24(6): 1475 doi: 10.1109/TPEL.2009.2013624
[12]	Ye Yidie, Qiu Jianping, Dong Lingling, et al. PWM/PSM dual-mode controller for high efficiency DC-DC buck converter. Asia-Pacific Power and Energy Engineering Conference, 2010 http://cn.bing.com/academic/profile?id=2147644798&encoded=0&v=paper_preview&mkt=zh-cn
[13]	Shi Lingfeng, Jia Weigang. Mode-selectable high-efficiency low-quiescent-current synchronous buck DC-DC converter. IEEE Trans Industrial Electron, 2014, 61(5): 2278 doi: 10.1109/TIE.2013.2267697
[14]	Lü Danzhu, Yu Jiale, Hong Zhiliang. A 10 MHz ripple-based on-time controlled buck converter with dual ripple compensation. Journal of Semiconductors, 2013, 34(2): 025005 doi: 10.1088/1674-4926/34/2/025005
[15]	Yu Jiale, Lü Danzhu, Hong Zhiliang. A 1500 mA, 10 MHz on-time controlled buck converter with ripple compensation and efficiency optimization. Journal of Semiconductors, 2012, 33(1): 015002 doi: 10.1088/1674-4926/33/1/015002

Fig. 1. Block diagram of the fully integrated buck converter.

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Fig. 2. Configuration of mode control

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Fig. 3. Configuration of conventional detector.

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Fig. 4. Reverse current caused by the delay.

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Fig. 5. Proposed zero-crossing detector circuit.

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Fig. 6. Current of inductor (I_L).

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Fig. 7. Logic for PSM loop.

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Fig. 8. Diagram of timing.

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Fig. 9. Chip micrograph.

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Fig. 10. (Color online) The experimental board.

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Fig. 11. (Color online) Waveform of output voltage. (a) I_o change from 0 to 450 mA. (b) I_o change from 450 to 0 mA.

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Fig. 12. (Color online) Waveform of output voltage. (a) V_in change from 1.8 to 1.2 V. (b) V_in change from 1.2 to 1.8 V

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Table 1. Performance comparison of this design with some reference.

[1]	Li Yajun, Lai Xinquan, Ye Qiang, et al. High efficiency and low electromagnetic interference boost DC-DC converter. Journal of Semiconductors, 2014, 35(4): 045002 doi: 10.1088/1674-4926/35/4/045002
[2]	Wang Qing, Chen Ning, Xu Shen, et al. A novel trajectory prediction control for proximate time-optimal digital control DC-DC converters. Journal of Semiconductors, 2014, 35(9): 095010 doi: 10.1088/1674-4926/35/9/095010
[3]	Jiang Jinguang, Huang Fei, Xiong Zhihui. Adaptive switching frequency buck DC-DC converter with high-accuracy on-chip current sensor. Journal of Semiconductors, 2015, 36(5): 055005 doi: 10.1088/1674-4926/36/5/055005
[4]	He Anlin, Guo Gang, Shi Shuting, et al. Experimental research of heavy ion and proton induced single event effects for a Bi-CMOS technology DC/DC converter. Journal of Semiconductors, 2015, 36(11): 115010 doi: 10.1088/1674-4926/36/11/115010
[5]	Jiang Jinguang, Tan Gaojian, Zhang Zeyu, et al. A novel dimmable LED driver with soft-start and UVLO circuits. Journal of Semiconductors, 2015, 36(2): 025004 doi: 10.1088/1674-4926/36/2/025004
[6]	Ahn Y, Nam H, Roh J. A 50-MHz fully integrated low-swing buck converter using packaging inductors. IEEE Trans Power Electron, 2012, 27(10): 4347 doi: 10.1109/TPEL.2012.2192136
[7]	Huang C, Mok P K T. An 84.7% Efficiency 100-MHz package bondwire-based fully integrated buck converter with precise DCM operation and enhanced light-load efficiency. IEEE J Solid-State Circuits, 2013, 48(11): 2595 doi: 10.1109/JSSC.2013.2274826
[8]	Khatri H, Gudem P S, Larson L E. Integrated RF interference suppression filter design using bond-wire inductors. IEEE Trans Microwave Theory Tech, 2008, 56(5): 1024 doi: 10.1109/TMTT.2008.921297
[9]	Abedinpour S, Bakkaloglu B, Kiaei S. A 65MHz switching rate, two-stage interleaved synchronous buck converter with fully integrated output filter. 2006 IEEE International Symposium on Circuits and Systems, 2006: 4 http://cn.bing.com/academic/profile?id=2142085548&encoded=0&v=paper_preview&mkt=zh-cn
[10]	Bathily M, Allard B, Hasbani F. A 200-MHz integrated buck converter with resonant gate drivers for an RF power amplifier. IEEE Trans Power Electron, 2012, 27(2): 610 doi: 10.1109/TPEL.2011.2119380
[11]	Alimadadi M, Sheikhaei S, Lemieux G, et al. A fully integrated 660 MHz low-swing energy-recycling DC-DC converter. IEEE Trans Power Electron, 2009, 24(6): 1475 doi: 10.1109/TPEL.2009.2013624
[12]	Ye Yidie, Qiu Jianping, Dong Lingling, et al. PWM/PSM dual-mode controller for high efficiency DC-DC buck converter. Asia-Pacific Power and Energy Engineering Conference, 2010 http://cn.bing.com/academic/profile?id=2147644798&encoded=0&v=paper_preview&mkt=zh-cn
[13]	Shi Lingfeng, Jia Weigang. Mode-selectable high-efficiency low-quiescent-current synchronous buck DC-DC converter. IEEE Trans Industrial Electron, 2014, 61(5): 2278 doi: 10.1109/TIE.2013.2267697
[14]	Lü Danzhu, Yu Jiale, Hong Zhiliang. A 10 MHz ripple-based on-time controlled buck converter with dual ripple compensation. Journal of Semiconductors, 2013, 34(2): 025005 doi: 10.1088/1674-4926/34/2/025005
[15]	Yu Jiale, Lü Danzhu, Hong Zhiliang. A 1500 mA, 10 MHz on-time controlled buck converter with ripple compensation and efficiency optimization. Journal of Semiconductors, 2012, 33(1): 015002 doi: 10.1088/1674-4926/33/1/015002

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Received: 03 February 2016 Revised: 23 March 2016 Online: Published: 01 August 2016

Article Navigation > Journal of Semiconductors > 2016 > 37(8): 085002

Zhang Zhang, Xing Wang, Wencheng Yu, Ye Tan, Yizhong Yang, Guangjun Xie. 50 MHz dual-mode buck DC-DC converter[J]. Journal of Semiconductors, 2016, 37(8): 085002. doi: 10.1088/1674-4926/37/8/085002 ****Z Zhang, X Wang, W C Yu, Y Tan, Y Z Yang, G J Xie. 50 MHz dual-mode buck DC-DC converter[J]. J. Semicond., 2016, 37(8): 085002. doi: 10.1088/1674-4926/37/8/085002.

Citation:

Zhang Zhang, Xing Wang, Wencheng Yu, Ye Tan, Yizhong Yang, Guangjun Xie. 50 MHz dual-mode buck DC-DC converter[J]. Journal of Semiconductors, 2016, 37(8): 085002. doi: 10.1088/1674-4926/37/8/085002 ****

Z Zhang, X Wang, W C Yu, Y Tan, Y Z Yang, G J Xie. 50 MHz dual-mode buck DC-DC converter[J]. J. Semicond., 2016, 37(8): 085002. doi: 10.1088/1674-4926/37/8/085002.

Citation:

Z Zhang, X Wang, W C Yu, Y Tan, Y Z Yang, G J Xie. 50 MHz dual-mode buck DC-DC converter[J]. J. Semicond., 2016, 37(8): 085002. doi: 10.1088/1674-4926/37/8/085002.

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50 MHz dual-mode buck DC-DC converter

DOI: 10.1088/1674-4926/37/8/085002

School of Electronic Science & Applied Physics, Hefei University of Technology, Hefei 230009, China

Funds:

National Natural Science Foundation of China 61404043

Key Laboratory of Infrared Imaging Material and Detectors, Shanghai Institute of Technical Physics, CAS IIMDKFJJ-13-06

National Natural Science Foundation of China 61401137

Project supported by the National Natural Science Foundation of China (Nos. 61404043, 61401137), the Key Laboratory of Infrared Imaging Material and Detectors, Shanghai Institute of Technical Physics, CAS (Nos. IIMDKFJJ-13-06, IIMDKFJJ-14-03), and the Fundamental Research Funds for the Central University (No. 2015HGZX0026)

Fundamental Research Funds for the Central University 2015HGZX0026

Key Laboratory of Infrared Imaging Material and Detectors, Shanghai Institute of Technical Physics, CAS IIMDKFJJ-14-03

More Information

Corresponding author: Xie Guangjun, Email: gjxie8005@hfut.edu.cn
Received Date: 2016-02-03
Revised Date: 2016-03-23
Published Date: 2016-08-01

Abstract

Abstract

A 50 MHz 1.8/0.9 V dual-mode buck DC-DC converter is proposed in this paper. A dual-mode control for high-frequency DC-DC converter is presented to enhance the conversion efficiency of light-load in this paper. A novel zero-crossing detector is proposed to shut down synchronous rectification transistor NMOS when the inductor crosses zero, which can decrease the power loss caused by reverse current and the trip point is adjusted by regulating IBIAS (BIAS current). A new logic control for pulse-skipping modulation loop is also presented in this paper, which has advantages of simple structure and low power loss. The proposed converter is realized in SMIC 0.18μm 1-poly 6-metal mixed signal CMOS process. With switching loss, conduction loss and reverse current related loss optimized, an efficiency of 57% is maintained at 10 mA, and a peak efficiency of 71% is measured at nominal operating conditions with a voltage conversion of 1.8 to 0.9 V.
- dual-mode buck DC-DC converter,
- zero-cross detection

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References(15)

References

[1]	Li Yajun, Lai Xinquan, Ye Qiang, et al. High efficiency and low electromagnetic interference boost DC-DC converter. Journal of Semiconductors, 2014, 35(4): 045002 doi: 10.1088/1674-4926/35/4/045002
[2]	Wang Qing, Chen Ning, Xu Shen, et al. A novel trajectory prediction control for proximate time-optimal digital control DC-DC converters. Journal of Semiconductors, 2014, 35(9): 095010 doi: 10.1088/1674-4926/35/9/095010
[3]	Jiang Jinguang, Huang Fei, Xiong Zhihui. Adaptive switching frequency buck DC-DC converter with high-accuracy on-chip current sensor. Journal of Semiconductors, 2015, 36(5): 055005 doi: 10.1088/1674-4926/36/5/055005
[4]	He Anlin, Guo Gang, Shi Shuting, et al. Experimental research of heavy ion and proton induced single event effects for a Bi-CMOS technology DC/DC converter. Journal of Semiconductors, 2015, 36(11): 115010 doi: 10.1088/1674-4926/36/11/115010
[5]	Jiang Jinguang, Tan Gaojian, Zhang Zeyu, et al. A novel dimmable LED driver with soft-start and UVLO circuits. Journal of Semiconductors, 2015, 36(2): 025004 doi: 10.1088/1674-4926/36/2/025004
[6]	Ahn Y, Nam H, Roh J. A 50-MHz fully integrated low-swing buck converter using packaging inductors. IEEE Trans Power Electron, 2012, 27(10): 4347 doi: 10.1109/TPEL.2012.2192136
[7]	Huang C, Mok P K T. An 84.7% Efficiency 100-MHz package bondwire-based fully integrated buck converter with precise DCM operation and enhanced light-load efficiency. IEEE J Solid-State Circuits, 2013, 48(11): 2595 doi: 10.1109/JSSC.2013.2274826
[8]	Khatri H, Gudem P S, Larson L E. Integrated RF interference suppression filter design using bond-wire inductors. IEEE Trans Microwave Theory Tech, 2008, 56(5): 1024 doi: 10.1109/TMTT.2008.921297
[9]	Abedinpour S, Bakkaloglu B, Kiaei S. A 65MHz switching rate, two-stage interleaved synchronous buck converter with fully integrated output filter. 2006 IEEE International Symposium on Circuits and Systems, 2006: 4 http://cn.bing.com/academic/profile?id=2142085548&encoded=0&v=paper_preview&mkt=zh-cn
[10]	Bathily M, Allard B, Hasbani F. A 200-MHz integrated buck converter with resonant gate drivers for an RF power amplifier. IEEE Trans Power Electron, 2012, 27(2): 610 doi: 10.1109/TPEL.2011.2119380
[11]	Alimadadi M, Sheikhaei S, Lemieux G, et al. A fully integrated 660 MHz low-swing energy-recycling DC-DC converter. IEEE Trans Power Electron, 2009, 24(6): 1475 doi: 10.1109/TPEL.2009.2013624
[12]	Ye Yidie, Qiu Jianping, Dong Lingling, et al. PWM/PSM dual-mode controller for high efficiency DC-DC buck converter. Asia-Pacific Power and Energy Engineering Conference, 2010 http://cn.bing.com/academic/profile?id=2147644798&encoded=0&v=paper_preview&mkt=zh-cn
[13]	Shi Lingfeng, Jia Weigang. Mode-selectable high-efficiency low-quiescent-current synchronous buck DC-DC converter. IEEE Trans Industrial Electron, 2014, 61(5): 2278 doi: 10.1109/TIE.2013.2267697
[14]	Lü Danzhu, Yu Jiale, Hong Zhiliang. A 10 MHz ripple-based on-time controlled buck converter with dual ripple compensation. Journal of Semiconductors, 2013, 34(2): 025005 doi: 10.1088/1674-4926/34/2/025005
[15]	Yu Jiale, Lü Danzhu, Hong Zhiliang. A 1500 mA, 10 MHz on-time controlled buck converter with ripple compensation and efficiency optimization. Journal of Semiconductors, 2012, 33(1): 015002 doi: 10.1088/1674-4926/33/1/015002

50 MHz dual-mode buck DC-DC converter

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