2LP277

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2LP277 is a universal motor controller, commonly used to regulate the speed and torque of an electric motor by varying the voltage and frequency. It offers stable, precise control of DC and AC motors, particularly those used in washing machines, refrigerators, air conditioners, dish washers, and other heavy-duty AC motors. This motor controller is also suited for quick-starting, low-horsepower motors with a wide variety of applications.

In terms of application range of 2LP277, it is ranging from 350W to 150KW and can be used to control both induction and permanent magnet motors. Thus it can be used in many domestic and industrial applications, such as: bus door motor, power blower motor, hi-pressure washer, water pump, air compressor, etc.

2LP277 generally consists of a power source, two switches in the three-phase bridge circuit, and a V-type-to-Z-type transformer, which is used to realize the current-transforming more accurately. During the operation, the upper semiconductor switch is used to make the chopping of the periodic interval between the voltage and the frequency of the power source steady, and the lower switch servo-clutch is used to sample the current. Then the signal is fed back to control the upper switch in order to keep the interval steady. The power source relies on the V-type-to-Z-type transformer for current limiting control, enabling the motor speed to be changed. This is the basic working principle of 2LP277.

To sum up, 2LP277 is a universal motor controller which is widely used for the control of various motors due to its wide application range and its convenient working principle. Therefore, it has become a reliable and economic solution in many domestic and industrial applications.

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