IEIE Transactions on Smart Processing and Computing

The Institute of Electronics and Information Engineers (대한전자공학회)
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A Single Inductor Dual Output Synchronous High Speed DC-DC Boost Converter using Type-III Compensation for Low Power Applications

  • Hayder, Abbas Syed (College of Information and Communications Engineering, Sungkyunkwan University) ;
  • Park, Hyun-Gu (College of Information and Communications Engineering, Sungkyunkwan University) ;
  • Kim, Hongin (College of Information and Communications Engineering, Sungkyunkwan University) ;
  • Lee, Dong-Soo (College of Information and Communications Engineering, Sungkyunkwan University) ;
  • Abbasizadeh, Hamed (College of Information and Communications Engineering, Sungkyunkwan University) ;
  • Lee, Kang-Yoon (College of Information and Communications Engineering, Sungkyunkwan University)
  • Received : 2014.04.05
  • Accepted : 2014.11.19
  • Published : 2015.02.28
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Abstract

This paper presents a high speed synchronous single inductor dual output boost converter using Type-III compensation for power management in smart devices. Maintaining multiple outputs from a single inductor is becoming very important because of inductor the sizes. The uses of high switching frequency, inductor and capacitor sizes are reduced. Owing to synchronous rectification this kind of converter is suitable for SoC. The phase is controlled in time sharing manner for each output. The controller used here is Type-III, which ensures quick settling time and high stability. The outputs are stable within $58{\mu}s$. The simulation results show that the proposed scheme achieves a better overall performance. The input voltage is 1.8V, switching frequency is 5MHz, and the inductor used is 600nH. The output voltages and powers are 2.6V& 3.3V and 147mW &, 230mW respectively.

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References

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