Invention Grant
- Patent Title: Method of and apparatus for operating stepping motors
- Patent Title (中): 操作步进电机的方法和装置
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Application No.: US82742Application Date: 1979-10-09
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Publication No.: US4280084APublication Date: 1981-07-21
- Inventor: David Chiang
- Applicant: David Chiang
- Assignee: David Chiang
- Current Assignee: David Chiang
- Main IPC: G05B19/40
- IPC: G05B19/40 ; H02P8/24
Abstract:
A method and apparatus for driving a stepping motor by angularly displacing the revolvable magnetic field with respect to the rotor by a first displacement angle in a given direction of revolution and then revolving the revolvable magnetic field, preferably with linearly increasing velocity and therefore maintaining constant displacement angle between the field and the rotor until the rotor rotates at a second velocity.
Public/Granted literature
- USD405196S Frame element extrusion Public/Granted day:1999-02-02
Information query
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