Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Digitally Controlled Single-inductor Multiple-output Synchronous DC-DC Boost Converter with Smooth Loop Handover Using 55 nm Process

  • Hayder, Abbas Syed (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Park, Young-Jun (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Kim, SangYun (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Pu, Young-Gun (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Yoo, Sang-Sun (Department of Smart Automobile, Pyeongtaek University) ;
  • Yang, Youngoo (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Lee, Minjae (School of Information and Communications, Gwangju Institute of Science and Technology (GIST)) ;
  • Hwang, Keum Choel (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Lee, Kang-Yoon (College of Information and Communication Engineering, Sungkyunkwan University)
  • Received : 2016.06.20
  • Accepted : 2016.12.22
  • Published : 2017.05.20
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Abstract

This paper reports on a single-inductor multiple-output step-up converter with digital control. A systematic analog-to-digital-controller design is explained. The number of digital blocks in the feedback path of the proposed converter has been decreased. The simpler digital pulse-width modulation (DPWM) architecture is then utilized to reduce the power consumption. This architecture has several advantages because counters and a complex digital design are not required. An initially designed unit-delay cell is adopted recursively for the construction of coarse, intermediate, and fine delay blocks. A digital limiter is then designed to allow only useful code for the DPWM. The input voltage is 1.8 V, whereas output voltages are 2 V and 2.2 V. A co-simulation was also conducted utilizing PowerSim and Matlab/Simulink, whereby the 55 nm process was employed in the experimental results to evaluate the performance of the architecture.

Keywords

References

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  1. Single Inductor-Multiple Output DPWM DC-DC Boost Converter with a High Efficiency and Small Area vol.11, pp.4, 2018, https://doi.org/10.3390/en11040725