control speed(backward, forward)

Variable Speed Trigger Switch (DC Power Tools)

This component is an integrated Variable Speed Trigger Switch assembly designed for DC (Direct Current) cordless power tools like drill/drivers, impact drivers, and similar equipment. It is the central control mechanism that translates user input into precise motor function.

Core Functionality

Variable Speed Control (VSC): The primary function is to provide proportional speed control. By depressing the main trigger, the user can gradually increase the voltage (and thus the speed) delivered to the motor, allowing for soft starts and precise speed adjustments for different materials or tasks.
Forward/Reverse Direction Control: An integrated reversing lever or slider allows the user to instantly switch the polarity of the electrical flow to the motor, changing the rotation direction between Forward (driving/drilling) and Reverse (extracting fasteners).
Dynamic Braking: The switch typically includes a dynamic braking function, which instantaneously stops the motor when the trigger is released. This feature is crucial for safety and control, especially when driving screws to prevent over-tightening.

Technical Specifications & Voltage

Voltage Range: This type of switch is designed to operate across the common cordless tool DC voltage range, typically from 7.2V DC to 24V DC (e.g., 12V, 18V, 20V MAX).
Current Handling: The switch is built to manage the high current (Amperage) draw of the power tool motor, commonly rated between 16A and 20A.
Application: It is intended for use with brushed DC motors. Compatibility with brushless motors depends on the tool's specific electronic control system.

Note: Always ensure the switch’s voltage and current ratings match the specifications of the tool and battery you are using.