Application of memristor-based controller for loop filter design in charge-pump phase-locked loops

Yi Bo Zhao, Chi Kong Tse, Jiu Chao Feng, Ye Cai Guo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

32 Citations (Scopus)


In this work, a monotonic increasing piecewise-linear (PWL) memristor-based proportional-integral (PI) controller is analyzed. A periodic rectangular pulse current source is used as the input signal, and the proportionality constant of the PWL memristor-based PI controller is varied according to the amount of charge that passes through the memristor. A circuit is proposed to achieve zero net-charge injection for the memristor so that the memristance of the PWL memristor can be varied in the subsequent period. The proposed PWL memristor-based PI controller can be used in the design of the loop filter for the charge-pump phase-locked loop for achieving a faster dynamical response from an unlocked state to a locked state compared to conventional fixed proportional constant PI controllers.
Original languageEnglish
Pages (from-to)1013-1023
Number of pages11
JournalCircuits, Systems, and Signal Processing
Issue number3
Publication statusPublished - 1 Jun 2013


  • Charge-pump phase-locked loop
  • Loop filter
  • Memristor
  • Proportional-integral control

ASJC Scopus subject areas

  • Signal Processing
  • Applied Mathematics

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