What Are the Common Problems of Switching Power Supply?
2024-10-08
Guangzhou Yuxiang switching power supply is built on the stable product quality, to win customer satisfaction and service first on the basis of the development of business, some businesses in order to save costs, the procurement of raw materials to adopt the principle of low price, do not pay attention to the quality of components, or with the same industry to form a fierce vicious competition, the circuit board design of the switching power supply is unreasonable, omitting the link that should not be saved, resulting in the switching power supply can not work normally and stably, etc., there are too many different quality levels of switching power supply on the market, and some problems encountered are also different.
Here are two of the most common problems with switching power supplies:
(1) The fuse is blown In general, a blown fuse indicates a problem with the internal wiring of the power supply. Since the power supply works in the state of high voltage and high current, the fluctuation and surge of the power grid voltage will cause the current in the power supply to increase instantaneously and cause the fuse to blow. Therefore, the new switching power supply may work on internal circuits and fuses to cope with fluctuations and surges in the power grid.
(2) There is no DC voltage output or the voltage output is unstable and the load capacity of the power supply is poor
The power supply has no DC output or poor load capacity is a common fault, which generally appears in the old or long-working power supply, the main reason is the aging of the components, the unstable work of the switch tube, and the lack of timely heat dissipation. It should be important to check whether the voltage regulator diode is heating and leakage, the rectifier diode is damaged, and the high-voltage filter capacitor is damaged. To prevent the aging of components and enhance the stability of the switch, technical and material requirements will also be put forward. So there will be a difference in price.
