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High-Voltage Gain CMOS Charge Pump at Subthreshold Operation Regime for Low Power Applications

  • C. Arul Murugan
  • B. BanuselvasaraswathyEmail author
  • K. Gayathree
Conference paper
Part of the Lecture Notes in Networks and Systems book series (LNNS, volume 65)

Abstract

This paper presents an enhanced complimentary metal oxide semiconductor (CMOS) charge pump (CP) circuit with improved gain and efficiency by dynamically controlling substrate and gate terminals of PMOS transistor. The proposed novel charge pump provides good performance even at low voltage. But, the efficiency of the charge pump circuit is being influenced by body effect and threshold voltage as the number of stage increases. Hence, numerous charge pump strategies are used to minimize the effect of threshold voltage and body effect. In this paper, the above-mentioned issues are overcome by implementing charge pump circuit in 180-nm standard in Cadence Virtuoso operated at low-voltage CMOS technology. From the result obtained, it is analyzed that the proposed CMOS charge pump achieves an improved voltage conversion ratio, efficiency and low operating voltage as compared to existing conventional CMOS charge pumps.

Keywords

Charge pump Voltage gain Threshold voltage Body effect Clock signal generator 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • C. Arul Murugan
    • 1
  • B. Banuselvasaraswathy
    • 2
    Email author
  • K. Gayathree
    • 2
  1. 1.Department of ETEKarpagam College of EngineeringCoimbatoreIndia
  2. 2.Department of ECESri Krishna College of TechnologyCoimbatoreIndia

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