I believe most people know that if the voltage is unstable, using a voltage regulator can solve the problem of unstable voltage fluctuation, but the power selection of the voltage regulator does require some professional and technical knowledge.

According to user feedback: after purchasing a brand of voltage regulator, it not only failed to achieve the expected voltage stabilizing effect, but also automatically disconnected when the equipment was turned on, and even began to doubt the voltage stabilizing effect of the voltage regulator.

After a simple investigation and inquiry, in fact, the user has a problem in the power selection of the voltage regulator. The load power of the voltage regulator is far lower than the load power. Therefore, when the load is turned on, the voltage regulator turns on its own protection function. So how do we choose the power of the regulator when we choose the regulator?

In fact, when selecting the power of the regulator, we should first consider what to be loaded to be connected to the regulator and how much the total power is. Then add the total power to be loaded to obtain the sum to obtain the minimum output power of the regulator.

How to calculate the power to be loaded: it is relatively simple to calculate the power to be loaded. Directly look at the product parameters on the product identification plate and take the maximum power.

Take the maximum power value of each electric appliance to be loaded, and then add the power to calculate the minimum power value of the voltage regulator. When we select the regulator, we add a certain amount of idle power to the regulator for later expansion and start it at the same time to deal with the waiting load.

Generally, 30% of the total power is enough for the voltage regulator. If it is added too much, it will cause unnecessary cost, and the selected power is too low to achieve the ideal voltage stabilizing effect in operation.