Title:
ELECTRIC TOOL AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/160139
Kind Code:
A1
Abstract:
Provided are an electric tool (100) and a control method therefor. The electric tool (100) comprises: an operation switch (13); a motor (11), which is connected to the operation switch (13), and is capable of being started in response to the switching-on of the operation switch (13) and being braked in response to the switching-off of the operation switch (13); and a control circuit (110), which is configured to control the working state of the motor (11). The control circuit (110) comprises: a drive circuit (111), which comprises a plurality of switch elements; a controller (112), which is coupled to the motor (11) and is capable of outputting a first control signal to control the motor (11) to start; and a parameter detection unit (120), which is used for detecting a working parameter of the motor (11), wherein the controller (112) is configured to: acquire a working parameter in response to the switching-on again of the operation switch (13) within a preset time after being switched off; and set a duty ratio of a second control signal according to the working parameter, so as to control the motor (11) to start again.
Inventors:
WANG HAILONG (CN)
XU TIANXIAO (CN)
XU TIANXIAO (CN)
Application Number:
PCT/CN2022/138866
Publication Date:
August 31, 2023
Filing Date:
December 14, 2022
Export Citation:
Assignee:
NANJING CHERVON IND CO LTD (CN)
International Classes:
H02P6/20; B25B21/00; B25B23/00; H02P6/08; H02P29/68
Foreign References:
| CN112332719A | 2021-02-05 | |||
| CN110445427A | 2019-11-12 | |||
| JP2011020187A | 2011-02-03 | |||
| CN202210160181A | 2022-02-22 | |||
| CN202210194409A | 2022-03-01 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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