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The difference between power adapter and voltage regulator
time2007/01/19
- Power adapter is a power supply conversion device for small portable electronic devices and electronic appliances. It is generally composed of a casing, a power transformer and a rectifier circuit. It can be divided into an AC output type and a DC output type according to its output type. Straightforward can be understood as a
1. The power adapter is a power supply conversion device for small portable electronic devices and electronic appliances. It is generally composed of a casing, a power transformer and a rectifier circuit. According to its output type, it can be divided into an AC output type and a DC output type. Straightforward can be understood as a voltage converter, such as converting a 110-220 volt AC voltage into a fixed DC voltage.
2. The regulator is a device that stabilizes the output voltage. The regulator has a constant voltage, a control circuit, and a servo motor. When the input voltage or load changes, the control circuit samples, compares, and amplifies, and then drives the servo motor to rotate, so that the position of the carbon brush of the regulator changes, and the output voltage is kept stable by automatically adjusting the turns ratio of the coil.
The power adapter is higher in voltage without load. If you pick up the load, it will find that its voltage will drop. This is because of its own limitation, just to provide a suitable voltage to the load. The main function of the regulator is to regulate the voltage. It will stabilize the voltage passing through it to a certain extent. If it exceeds or lowers this value, it will have an action. The power adapter does not have this effect.
These two can be distinguished according to the use situation. If the load power supply requirements are not high, they can be used interchangeably. However, if the load requires a high power supply, even if the voltage of 1V does not change, then the regulator must be used. Otherwise, you should burn the power without burning the load.
Shenzhen Lianyunda Electronics Co., Ltd.-Lianyunda (Hong Kong) Industrial Co., Ltd. is a national high-tech enterprise, specializing in the production of switching power supply, LED waterproof power supply, power adapter, charger manufacturers. The company has passed ISO9001:2008 international quality system certification, and has obtained dozens of invention patents, utility model patents, and appearance patents.