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    Basic knowledge | What is the performance and structure of carbon brushes commonly used in single-phase AC universal motors?

    Basic knowledge | What is the performance and structure of carbon brushes commonly used in single-phase AC universal motors?

    The selection of brushes is mainly determined by the temperature rise of the brushes and the circumferential speed of the commutator. The temperature rise of the brush is related to the density of the brush and the contact pressure drop of the commutator, the mechanical loss and the thermal conductivity of the brush. If the peripheral linear speed is too high, the brushes and commutators will be heated, the sparks will increase, and the wear of the brushes and commutators wil···

    Basic knowledge | Why is the mechanical properties of single-phase universal motors soft?

    Basic knowledge | Why is the mechanical properties of single-phase universal motors soft?

    ​Since the motor is running, when the load torque increases, the electromagnetic torque increases, and the input current also increases. At the same time, cause of the excitation current of the series motor is equal to the total current of the armature, it is equal to the input current. Therefore, when the exciting current increases, the exciting magnetic flux φd also increases. However, due to the motor speed n∝1/φd, when the input current increases, the motor speed n de···

    Basic knowledge | Why is the single-phase universal motor a dual-purpose AC and DC motor?

    Basic knowledge | Why is the single-phase universal motor a dual-purpose AC and DC motor?

    When the single-phase universal motor is powered by AC, it is called AC universal motor; when it is powered by DC, it is called DC universal motor.For a single-phase DC universal motor to change its power supply polarity, the direction of the torque and speed of the motor does not change (constant steering), this is because the excitation winding and the armature winding are connected in series, and the excitation current and armature current change at the same time for the s···

    Power Motor has launched a long - life rechargeable hand blender motor solution

    Power Motor has launched a long - life rechargeable hand blender motor solution

    On March 10, 2022, Power Motor unveils a new series of motor solutions for cordless hand blender. PT2730 series and PT555PM series provides a comprehensive motion solution for cordless hand blender or mixer. The highly integrated product assembly combines low-voltage permanent magnet DC motor, motor driver and rechargeable battery pack.

    AC Universal Motor EMC Optimization Technology for 5G and WIFI Application

    AC Universal Motor EMC Optimization Technology for 5G and WIFI Application

    AC Universal Motor EMC Optimization Technology for 5G and WIFI Application,In order to solve the problems of increasing the upper limit of the frequency of space radiation from 1GHz to 6GHz and the high cost of home appliance EMC in the existing market, Power Motor has improved the production equipment and process by adopting a new type of commutator and motor structure on the series motor. In order to solve the problems of increasing the upper limit of the frequency of space···

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