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Design and Implementation of Fan Motor Driver IC with PWM Speed Control

Single-phase brushless fan motor is investigated in this thesis and is fabricated by UMC 0.5 m double-poly, triple-metal, N-Well CMOS process for notebook micro fan motor applications. H-bridge and embedded power mos architecture are used in implemented driver circuit, and an external capacitor is needed for pulse width modulation speed control. A comparator with hysteresis and digital lock detection and auto self-restart function are also implemented in this thesis. Besides, in order to prevent the rush current in output stage, the switch operation of power mos transistors are controlled individually.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0715105-025051
Date15 July 2005
CreatorsHu, Che-shen
ContributorsChin-ching Huang, Yung-chun Wu, I-chih Kao, Tzuen-lih Chern, Zai-jun Yu
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0715105-025051
Rightsunrestricted, Copyright information available at source archive

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