5W-60WSmall Appliances Power Adapter

How to choose a power adapter?

Power adapters consume a portion of power during operation and release it as heat.

The issues to consider when selecting a power adapter are:

1. In order to advance the reliability of the system, it is recommended that the power adapter operates at 50%-80% load as well, that is, assuming that the power used is 20W, the power adapter with an output power of 25W-40W should be selected.

2. Try to use the manufacturer's standard power supply, including standard size and output voltage. This delivery will be faster; special standards and output voltage, it will increase the development time and cost.

3. Clear input voltage planning, AC input, for example, commonly used input voltage standard 110V, 220V, so there is a corresponding 110V, 220V communication switching, as well as general-purpose input voltage (AC: 85V-264V) three standards. Input voltage standard should be selected according to the application area.

4. Power adapter in the operation will consume part of the power, and to the heat of the method of release, so the user in the system design (especially closed system) should consider the power adapter heat dissipation problems.

5. According to the use of conditions, set out the demand for the output voltage, current; power supply size, installation methods and installation holes; how many outputs, the output of each circuit whether the need for electrical blocking; input voltage planning; according to the ambient temperature, the resolution of the power adapter's degree of de-rating, power supply power; whether the need for certification and safety standards; power supply cooling methods: natural cooling or forced air-cooled; electromagnetic compatibility standards.

In choosing a good power adapter should be how to choose it, first of all, we should look at the power output voltage and current of the power adapter, etc., followed by a look at the strength of its company certification full or not, and then is to pay attention to the price, do not be greedy for cheaper and buy fake and shoddy products.

Eahunt specializes in the development and production of various types of chargers, power adapters, switching power supplies, power supplies and other products. Passed UL, CE, FCC, GS, CB, EK, PSE, C-TICK, CCC and many other international certifications. 6 energy-efficient power supply technology in the foreground of the leading ranks.