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A Design of a Power-Up Circuit for Energy Harvesting Applications

  • Muhammad Basim
  • , Qurat Ul Ain
  • , Khuram Shehzad
  • , Syed Adil Ali Shah
  • , Young Gun Pu
  • , Kang Yoon Lee
  • Sungkyunkwan University
  • Ltd.

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents a power-up circuit design for energy harvesting applications. The two main blocks of the power-up circuit are bandgap reference (BGR) and a low drop-out voltage regulator (LDO). A soft-start circuit is added to the bandgap reference circuit to stabilize the output voltage of BGR and LDO. To protect the circuit from noise and fluctuation, the BGR employs a current-mode regulator. The BGR generates a fixed output voltage of 1.2 V. The input voltage of the power-up circuit is 4.2 V and the output voltage is 3.3 V with a load current is 40 mA. The Power Supply rejection ratio achieved by the circuit is-59.9 dB and-50.5 dB for BGR and LDO, respectively. The line regulation and load regulation of the proposed LDO are 3.04 mV/V and 6.8 mV/mA, respectively. The proposed power-up circuit is implemented in 130 nm Bipolar-CMOS-DMOS (BCD) technology with an active area of 576 μm x μm, The functionalities and performance of the LDO are verified in Cadence Virtuoso.

Original languageEnglish
Title of host publicationITC-CSCC 2022 - 37th International Technical Conference on Circuits/Systems, Computers and Communications
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages622-625
Number of pages4
ISBN (Electronic)9781665485593
DOIs
StatePublished - 2022
Event37th International Technical Conference on Circuits/Systems, Computers and Communications, ITC-CSCC 2022 - Phuket, Thailand
Duration: 5 Jul 20228 Jul 2022

Publication series

NameITC-CSCC 2022 - 37th International Technical Conference on Circuits/Systems, Computers and Communications

Conference

Conference37th International Technical Conference on Circuits/Systems, Computers and Communications, ITC-CSCC 2022
Country/TerritoryThailand
CityPhuket
Period5/07/228/07/22

Keywords

  • Bandgap reference
  • Low-Dropout Voltage Regulator
  • Power Management Integrated Circuits (PMIC)

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