A robust high-efficiency cross-coupled charge pump circuit without blocking transistors

Minglin Ma, Xinglong Cai, Yichuang Sun, Nike George

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
26 Downloads (Pure)

Abstract

A fully integrated cross-coupled charge pump circuit with a new clock scheme has been presented in this paper. The new clock scheme ensures that all NMOS pre-charge transistors are turned off when the voltages of main clock signals are high. Notably, all PMOS transfer transistors will be turned off when the voltages of the main clock signals are low. As a result, the charge pump eliminates all of the reversion power loss and reduces the ripple voltage. The proposed charge pump has a better performance even in scenarios where the main clock signals are mismatched. The proposed charge pump circuit was simulated using spectre in the TSMC 0.18 µm CMOS process. The simulation results show that the proposed charge pump circuit has a high voltage conversion efficiency and low ripple voltage.

Original languageEnglish
Pages (from-to)395-401
Number of pages7
JournalAnalog Integrated Circuits and Signal Processing
Volume95
Issue number3
Early online date16 Mar 2018
DOIs
Publication statusPublished - 1 Jun 2018

Keywords

  • Cross-coupled charge pump
  • Reversion power loss
  • Ripple voltage

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