CLASSI, II, III ” are mainly concerned with the insulation system of switching power supply, coming from the IEC standard: CLASS I: the electric shock protection of the product depends…
How to improve the temperature rise of AC power adapter
This is to continue the last topic of the AC power adapter get hot in use and introduce how to improve it from the aspects of design, components selection and…
Why is the power adapter getting hot？
Recently we received an inquiry from one of our consumers, saying that our power adapter equipped with the dehumidifier is getting hot and wondering if this is normal, and if…
Energy Star
Energy Star, is a government-led energy conservation program for consumer electronics. The Energy Star program, launched in 1992 by the EPA’s (EPA) and the U.S. Department of Energy’s (DOE), aims…
10 Tips in the Design of GVE Switching Power Supply
Network connectivity, after the schematic design is completed, network connectivity needs to be carefully checked to prevent network connectivity caused by writing problems, such as PWR_IN and PWR-IN, may not…
Influence of High and low temperature on Reliability of Power Adapter
Effects of low temperature on Power Adapter elasticity of flexible materials such as rubber is reduced and rupture occurs, and the brittleness of metals and plastics increases, which leads to…
How to Correct the Power Factor of Adapter
There are two main methods for power factor correction (PFC): passive power factor correction and active power factor correction. Passive power factor correction (PFC) uses linear inductors and capacitors to…
Common Faults and Troubleshooting Methods of Power Adapter
Line Failure. Line failure, including power line damage and lack of power, contact oxidation contact and so on. Focus on the input line, the output line is electrified. If the…
How to Select and Install the Filter
When selecting filter, we should pay attention to the following points: (1) make clear the working frequency and the interference frequency to be suppressed, if the two are very close,…