Driving device for electric caulking gun, has current switching unit supplying or cut-off current and determining motor speed, and speed sensor connected to microcontroller and motor to detect and deliver speed of motor to microcontroller

摘要

The device has a direction changing module (12) connected to a microcontroller (11) and a motor (20) to receive speed signal to control motor speed. A current supply module (13) is connected to the microcontroller and the changing module to provide current to operate the microcontroller and the changing module. A current switching unit (14) is connected in series between the supply module and the microcontroller to supply or cut off the current and determine the speed. A speed sensor (15) is connected to the microcontroller and the motor to detect and deliver the speed to the microcontroller.