Invention Grant
- Patent Title: Control method and control system of fan
- Patent Title (中): 风机控制方式及控制系统
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Application No.: US13842852Application Date: 2013-03-15
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Publication No.: US09534612B2Publication Date: 2017-01-03
- Inventor: Jen-Hao Wu , Wei-Shun Huang , Tai-Yu Chen
- Applicant: DELTA ELECTRONICS, INC.
- Applicant Address: TW Taoyuan Hsien
- Assignee: DELTA ELECTRONICS, INC.
- Current Assignee: DELTA ELECTRONICS, INC.
- Current Assignee Address: TW Taoyuan Hsien
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: TW101126532A 20120724
- Main IPC: F04D27/00
- IPC: F04D27/00 ; F04D27/02
Abstract:
A control method of a fan comprises steps of: detecting a rotational speed of a blade and a rotor position of the blade; generating a control signal according to the rotational speed and a predetermined rotational speed; obtaining a Back-EMF waveform according to the control signal, the rotational speed, the rotor position and a waveform; adjusting the phase of the Back-EMF waveform; and outputting a switch control signal.
Public/Granted literature
- US20140030091A1 CONTROL METHOD AND CONTROL SYSTEM OF FAN Public/Granted day:2014-01-30
Information query
