As intelligent devices play a more and more important role in people's lives, with the gradual increase of functions, the problem of power consumption of devices is gradually exposed, and people are more and more used to carrying power adapters, that is, chargers. What is the difference between this power adapter and a voltage regulator? This article will give you an introduction. It is found that the voltage of the power adapter is higher than the value marked by the power adapter without load, and the voltage regulator is always this value. So what's the difference between the two?
Difference between power adapter and voltage regulator
1. Power adapter is the power supply conversion equipment of small portable electronic equipment and electronic appliances. It is generally composed of shell, power transformer and rectifier circuit. According to its output type, it can be divided into AC output type and DC output type. Frankly speaking, it can be understood as a voltage converter, such as converting 110-220 V AC voltage into a fixed DC voltage.
2. A voltage regulator is a device that stabilizes the output voltage. The voltage stabilizer is composed of voltage stabilizing and constant voltage, control circuit and servo motor. When the input voltage or load changes, the control circuit samples, compares and amplifies, and then drives the servo motor to rotate to change the position of the carbon brush of the voltage regulator. By automatically adjusting the coil turn ratio, the output voltage is stable.
When the power adapter is not loaded, the voltage is higher. If you connect the load, you will find that its voltage will drop. This is due to its function limitation. It is only to provide a suitable voltage to the load. The main function of the voltage regulator is to stabilize the voltage. It will stabilize the voltage through it to a certain range. It will act if it exceeds or falls below this value. The power adapter has no such function. The two can be distinguished according to the use conditions. If the load power supply requirements are not high, they can be used instead of each other. However, if the load has high requirements on the power supply, even if the 1V voltage change is not possible, then the voltage regulator must be used, otherwise the power supply must be burned without burning the load.
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