A DVS embedded power management for high efficiency integrated SoC in UWB system

Yu Huei Lee*, Yao Yi Yang, Ke-Horng Chen, Ying Hsi Lin, Shih Jung Wang, Kuo Lin Zheng, Po Fung Chen, Chun Yu Hsieh, Yu Zhou Ke, Yi Kuang Chen, Chen Chih Huang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

The proposed power management module with a typical 1.2 V low-voltage PWM (LV-PWM) controller and dynamic voltage scaling (DVS) function is designed using 65 nm technology for integration with the ultra-wide band (UWB) system. The on-chip pre-regulator with a power conditioning circuit can provide a regulated supply voltage to the LV-controller. Moreover, the proposed handover technique can achieve the self-biasing mechanism to further reduce power dissipation. To operate in low voltage, the proposed compensation enhancement multistage amplifier (CEMA) can achieve high loop gain and ensure system stability without using any external compensation component. The fabricated power management module occupies 0.356 mm2 silicon area with an excellent line/load transient response. Owing to the DVS function, the proposed power management can meet the power requirement in the UWB system and other RF transceiver systems.

Original languageEnglish
Article number5607224
Pages (from-to)2227-2238
Number of pages12
JournalIEEE Journal of Solid-State Circuits
Volume45
Issue number11
DOIs
StatePublished - 1 Nov 2010

Keywords

  • DC-DC converter
  • dynamic voltage scaling
  • low-voltage operation
  • power conversion efficiency
  • power management
  • transient response
  • UWB system

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