Title:
DRIVE PROTECTION METHOD FOR DIRECT CURRENT MOTOR
Document Type and Number:
WIPO Patent Application WO/2017/045507
Kind Code:
A1
Abstract:
A drive protection method for a drive circuit (30) used for a direct current motor (10). The direct current motor has a maximum resistance value. The drive protection method comprises the following steps: firstly, providing a control signal and a drive current (S51), the control signal being used for controlling an output level of the drive current, and the drive current being used for driving a direct current motor; next, providing a maximum signal level corresponding to the maximum resistance value (S52); then, comparing a feedback signal fed back by the direct current motor and the maximum signal level (S53); and finally, when a level of the feedback signal exceeds the maximum signal level, starting an operation of the feedback signal to obtain an operation signal, and when a level of the operation signal reaches a closing level, stopping output of the control signal (S54).
Inventors:
LEE WEN-CHING (CN)
Application Number:
PCT/CN2016/095688
Publication Date:
March 23, 2017
Filing Date:
August 17, 2016
Export Citation:
Assignee:
LEE WEN-CHING (CN)
International Classes:
H02H7/085
Foreign References:
CN101594105A | 2009-12-02 | |||
CN104426135A | 2015-03-18 | |||
US20010019660A1 | 2001-09-06 | |||
JPH08182374A | 1996-07-12 |
Other References:
See also references of EP 3352317A4
Attorney, Agent or Firm:
LECOME INTELLECTUAL PROPERTY AGENT LTD. (CN)
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