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US 2022/0286018 A1Published application
Power tool and control method thereof
AssigneeNanjing Chervon Industry Co., Ltd.
InventorsZhen Xu, Dezhong Yang, Yanqing Xu
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AssigneeNanjing Chervon Industry Co., Ltd.
InventorsZhen Xu, Dezhong Yang, Yanqing Xu
Estimating the term…
A power tool includes a functional element, a motor, a power supply module, a driver circuit, and a control module. The control module is electrically connected to the driver circuit and configured to output a control signal to the driver circuit to control the driver circuit. The control module is configured to: in the case where the power tool is in a first operation stage, control the driver circuit in a first control mode so that a voltage of the motor varies with a rotor position of the motor in a square wave; and in the case where the power tool is in a second operation stage, control the driver circuit in a second control mode so that the voltage of the motor varies with the rotor position of the motor in a sine wave or a saddle wave.
A power tool, comprising:
The power tool of claim 14, wherein the control module is configured to:
A control method of a power tool comprised of a motor, a driver circuit configured to drive the motor, and a control module configured to control the driver circuit, the control method comprising:
Dependencies are inferred from the claim text.