DF57J-2P-1.2V(21)

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DF57J-2P-1.2V(21) is a product of a family of motor controllers designed for high efficiency applications. It is used in many industrial and commercial applications, including robotics, medical products, and power tools.

This device is a two-phase motor with a nominal voltage of 1.2V and a maximum current of 21A. The device has two switches, one for controlling the motor speed and the other for controlling the polarity of rotation. It also has several protective features such as over-temperature protection, current overload protection, and AC power failure protection.

The controllers use two AC power phases, one for the motor and the other for the switching circuit. When a control signal is applied to the switch, the motor is rotated. The motor speed depends on the voltage applied to the switch and the number of rotations depends on the circuit\'s duty cycle.

When both phases are at the same voltage, the motor will rotate at a constant speed. This is known as Direct Current mode, or DC mode. At higher voltages, the motor speed will be increased, up to a certain limit, depending on the motor\'s winding construction.

In alternating current (AC) mode, the voltage varies between the two phases, causing the motor to instantly switch its rotation direction in every cycle. This helps achieve higher speeds than DC mode, and is used mainly in applications where rapid motor speed is required.

The DF57J-2P-1.2V(21) controller is useful in controlling the motors used in industrial and commercial products such as robots, medical devices, and power tools. This device is designed to provide high efficiency motor control, and has several protective features to ensure its smooth operation.

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