MOSFET is a commonly used switch device for controlling high-power loads in circuits. In motor drive circuits, the selection and operating state of MOSFETs can affect the performance and efficiency of the motor.

The following are the impacts of MOSFETs on motors: 

 1. Motor speed: The conduction and cutoff speed of MOSFETs directly affect the speed of the motor. When a MOSFET is conducting, the motor can operate normally, while the motor stops running when the MOSFET is cut off.

 2. Motor efficiency: The losses caused by the conduction and cutoff of MOSFETs in the circuit affect the efficiency of the motor. When the switching losses of MOSFETs are low, the motor can achieve higher efficiency.

 3. Motor lifespan: The selection of MOSFETs and the design of drive circuits directly affect the lifespan of motors. If the MOSFET’s voltage level is not high enough or the capacity is insufficient to support the load of the motor, the motor is susceptible to damage due to over-current or over-temperature conditions.

 4. Motor noise: The noise of motors is also related to the switching frequency of MOSFETs and the design of their drive circuits. Under high-speed switching conditions, significant electromagnetic interference may occur, leading to increased motor noise.

Therefore, selecting suitable MOSFETs and appropriate drive circuit designs is crucial to improving the performance and efficiency of the motor.

Shenzhen Dongchengxin Electronic Technology Co., Ltd. provides various solutions for high-speed hair dryers, including control board_PCBA_overall solutions that have passed certification, are in mass production, and can be flexibly customized according to customer needs. They can also choose material supply or main supply, and assist customers in completing PCBA design, debugging, certification, and production.

They can also link ID/MD design, molds, accessories, wire resources, and other supply chain resources to help customers quickly achieve product mass production.