Invention Grant
- Patent Title: Driving circuit and driving method thereof
- Patent Title (中): 驱动电路及其驱动方法
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Application No.: US14501659Application Date: 2014-09-30
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Publication No.: US09344017B2Publication Date: 2016-05-17
- Inventor: Chung-Hung Tang , Chien-Sheng Lin , Chin-Fa Chiu , Chun-Lung Chiu
- 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: TW103105777A 20140221
- Main IPC: H02P6/00
- IPC: H02P6/00 ; H02P6/08 ; H02P25/18
Abstract:
A driving circuit drives a motor containing a first coil and a second coil. The driving circuit includes a switching unit, an operation unit and a control unit. The switching unit receives a switching signal from the control unit for driving the motor. The control unit detects the rotation speed of the motor. When the rotation speed of the motor is greater than a predetermined rotation speed, the control unit outputs a first operation signal to the operation unit to couple the first terminals of the first and second coils and couple the second terminals of the first and second coils. When the rotation speed of the motor is less than or equal to the predetermined rotational speed, the control unit outputs a second operation signal to the operation unit to couple the second terminal of the first coil to the first terminal of the second coil.
Public/Granted literature
- US20150244295A1 DRIVING CIRCUIT AND DRIVING METHOD THEREOF Public/Granted day:2015-08-27
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