Constant power heating circuit for integrated gas sensor application

Sunny S W Chan, Philip Ching Ho Chan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

Abstract

This paper reports a novel circuit to supply constant heating power to the micro-hotplate for integrated gas sensor applications. The circuit is designed so that the heating power is maintained constant in spite of the change of heater resistance value due to process variations. By controlling the biasing current of the power control circuit, the heating power can be controlled linearly. The circuit is realized using CMOS. Simulation shows that the heating power can be controlled at ±0.4% with ±50% changes in heating resistance.
Original languageEnglish
Title of host publicationProceedings of the IEEE Hong Kong Electron Devices Meeting
PublisherIEEE
Pages5-8
Number of pages4
Publication statusPublished - 1 Dec 1996
Externally publishedYes
EventProceedings of the 1996 3rd IEEE Hong Kong Electron Devices Meeting - Hong Kong, Hong Kong
Duration: 29 Jun 199629 Jun 1996

Conference

ConferenceProceedings of the 1996 3rd IEEE Hong Kong Electron Devices Meeting
Country/TerritoryHong Kong
CityHong Kong
Period29/06/9629/06/96

ASJC Scopus subject areas

  • Engineering(all)

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