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Power Adapter FAQ – power adapter wholesale supplier

40 views Yuda Electronic (HK) Technology Co.,Limited. 2019-09-17

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1. Is the laptop power adapter a battery or a charger?

      
The notebook’s power adapter, which is equivalent to the power supply unit in the desktop, is a matching AC power converter designed for the notebook. It can supply power to the notebook and also charge the battery. It is a removable power source.

 

2. Can the desktop power adapter be universal?

 

As long as the power interface and the polarity are the same, they can be used interchangeably, but the small current cannot carry a large load.

 

3. What is the difference between the power adapter and the voltage regulator?

 

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. It can be understood as a voltage converter, such as converting an AC voltage of 110-220 volts into a fixed DC voltage.

 

The voltage regulator is a device that stabilizes the output voltage. The regulator has a constant voltage and control circuit. When the input voltage or load changes, the control circuit samples, compares, and amplifies the position of the regulator, and automatically adjusts the turns ratio of the coil to keep the output voltage stable.

 

 

Power Adapter FAQ - power adapter wholesale supplier

 

4. The purpose of the power adapter

 

Switching power supply products are widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, power equipment, instrumentation, medical equipment, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, liquid crystal displays, LED Lighting, communications equipment, security, computer chassis, digital products and instruments.

 

5. What is the difference between DC power adapter and AC power adapter?

 

The DC Power Adapter is a power adapter for network extenders, routers, communications devices, cell phones, computers, and PSPs. Since laptops and PSP internal components use direct current, and our domestic electricity is alternating current, there must be a way to convert domestic electricity to direct current to power the computer and PSP. The DC power adapter was born in this case.

 

The common AC power adapter (hereinafter referred to as AC power) is usually equipped with the AC symbol. The internal of the AC adapter is mainly through the power transformer to complete the conversion output.

 

The DC power adapter is DC. The inside of the DC adapter is composed of a rectifier circuit. At present, the common AC power adapter on the router has a copper core inside. When working, the power consumption will be lost in the form of useless work. The input voltage range of the copper core power supply is very narrow and cannot be adapted to various environments. The common DC power supply is an adapter (such as a mobile phone charger), and the internal is formed by a rectifying IC chip plus a filter circuit, and the loss is much lower.

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