What should be paid attention to when selecting MEAN WELL power supply?

Create Date: 2024-8-30 12:03:23|Source: Meanwell

First, scale
What should be paid attention to when selecting MEAN WELL power supply?
  Different types of power supplies have different scales, and it is necessary to reserve a suitable installation space for easy use

Second, the input voltage range

There are two parts to be recognized:

1. Input voltage nature

The voltage range of the AC input, the voltage range of the DC input.

2. Enter the voltage value

For example, China's mains electricity is 220Vac, and Japan's mains is 110Vac.

The communication bus in Europe is 48Vdc and in North America it is 24Vdc.

If you make a mistake, the power supply will not work, or the electrical appliances will be directly incinerated and used.

Third, the output power

What is output power? In the case of the most common regulated modules, it is the value of the output voltage * the maximum normal operating current.

How to choose, generally speaking, it is recommended to first admit how much power the appliance is, for example, W, and then choose a power supply with 1.25W - 2W power. This results in better power and power life.

Fourth, when multi-channel output, the main circuit voltage is determined according to the load characteristics of each channel (negative, capacitive, rational) and power change range. Generally, the main circuit is large output current and high voltage accuracy.

Fifth, clarify other indicators such as ripple noise, voltage stability, and load stability.

Sixth, according to the actual use of the environment's temperature, humidity, vibration whether waterproof and other requirements are selected.

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