FP3LHLH04M1

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FP3LHLH04M1 is a combination of three-phase motor, non-contact hall sensor, signal drive and peripheral circuit. The product is applicable to various electric motors driven by low-voltage three-phase systems, such as fan motors, pumps, compressors, hoisting machines, textile equipments, etc. It is widely used in power supplies, drive control systems, household appliances, industrial automation equipment transmission and other fields.

FP3LHLH04M1 working principle is that the Hall sensor is used to sense and collect the moving magnetic pole signals of the motor stator winding.When the magnetic flux density exceeds a certain value,the Hall electric current signal is generated, which is converted by the amplifier circuit into a signal level proportional to the motor speed. The signal is then sent to the microcontroller or external controller for analyzing.It can adjust the motor speed by controlling the duty cycle of the driving signal before finally output it to the drive circuit.

In the three-phase driving system of FP3LHLH04M1, the driving method of half-full bridge PWM is adopted. The end of each winding is connected to the driving FET positive and negative poles respectively. When the positive and negative FETs of each pair of drive FETs are in on-off and off-on alternately, single-phase triangular wave current is generated on the winding side. Through connecting in a certain sequence, three-phase rotation can be realized. Internal circuits realize speed closed-loop control, which can achieve the purpose of controlling the rotation speed of motor such as speed regulation or speed limitation.

The hall sensor is the key component of FP3LHLH04M1. It is also the core of motor speed control system, which can sense the air gap magnetic flux density. This motor can make full use of the hall signal feedback to realize closed-loop control. Therefore, it has the advantages of simple connection, quick response and high control accuracy.

In general, FP3LHLH04M1 is a highly integrated motor drive circuit which can effectively adjust the speed of motor, match different motors and different loads, and ensure the steady running of the system.

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