LED switching power supply is widely used in the world. It is a kind of switching power supply and is also called a power supply. It provides lighting and the power required by all components in the computer. We will encounter many problems in the process of learning or applying LED switching power supply. For example, today we are talking about under what circumstances the LED switching power supply is easily burned out. First of all, we must understand the professional explanation of LED switching power supply. It is very different from the traditional lamp power supply. First of all, we cannot directly use the conventional grid voltage because it has special voltage and current requirements. Therefore, a voltage conversion device must be designed according to the characteristics of the LED light source, so that the LED can operate normally. Only a high-efficiency power supply can allow the LED light source to exert its stable advantages.
We understand the basic knowledge of LED switching power supply, so under what circumstances can the power supply be easily burned out?
First: From a non-professional surface point of view, when a power outage comes, there will be burnout. Generally, it will not occur during a power outage. When a call comes, an inrush current (Inrush Current) will generally be generated.
, there is a possibility of burning the power supply. During our design process, the LED switching power supply will have the function of discharging surges, so if this happens, it is usually a design problem of the power supply or a natural problem that occurs very rarely.
Second: From a professional perspective, if the input and output are disconnected and reversed, it will easily burn out the power supply and may cause a crash;
Third: Continuous use of overload, for example, the maximum load of the power supply is 100W, then the general rule is that the maximum power for long-term use should be 80% of the maximum load of the power supply. If you work on a load of more than 100W for a long time, it will easily occur. The phenomenon of burning;
Fourth: From an environmental perspective, if the relative humidity of the LEDswitching power supply is less than 80%, the ambient temperature used is -20-40 degrees Celsius, but during use, the environment of the switching power supply exceeds the temperature of the power supply. If the standard configuration guideline is used, it will be easy to burn out the LED switching power supply;
Generally, the place where LED switching power supplies are more likely to burn out is that the power components, especially those close to full load, are also prone to damage.
Regarding the problem of under what circumstances the LED switching power supply is easy to burn out, briefly speaking, the above points are also several situations that will occur. But whether it will burn depends on the power supply mode of the power supply. Therefore, when we design the switching power supply, we will design it according to the customer's requirements. Consider the customer's needs and the geographical environment where the customer's equipment is located. Determine the power supply specifications and do a good job in ventilation and heat dissipation of the power supply design. The design specifications should be more than 30% higher than the customer's requirements. Therefore, whether you are learning about switching power supplies or customers, we must first consider the needs of customers and the geographical environment where the equipment is located.
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Post time: May-13-2024