Question:
Is the power adapter, power transformer, charger the same thing?
For example, broadband cat power adapter, digital camera power adapter is broken, if the voltage is the same, can not use the other two, if not the same, please explain them, what's the difference?.
Answer:
The power adapter is power supply equipment transform small portable electronic equipment and electronic appliances, generally consists of a shell, a power transformer and rectifier circuit, according to the type of output can be divided into AC output type and DC output type; according to connection can be divided into the plug wall and desktop. It is widely used in telephone console, console, language repeater, Walkman, notebook computer, cellular phone and so on.
There is a nameplate in the power adapter, marked power, index input and output voltage and current, with particular attention to the range of input voltage, this is the so-called "Travel Adapter", if the voltage is only 100V of the state, this feature is very useful, some smuggled goods notebook computer it is only at the origin of sales, without this design, a single input voltage even only 100V, plug will in 220V voltage in China under fire.
The power adapter is power supply equipment transform small portable electronic equipment and electronic appliances, generally consists of a shell, a power transformer and rectifier circuit, according to the type of output can be divided into AC output type and DC output type; according to connection can be divided into the plug wall and desktop. It is widely used in telephone console, console, language repeater, Walkman, notebook computer, cellular phone and so on.The power adapter of most laptops can automatically detect 100 to 240V alternating current (50/60Hz). Basically, all laptops have an external power supply, connected to a mainframe by a line, which reduces the size and weight of the host. Only a handful of models build the power into the mainframe.
The power adapter includes: step-down transformer rectifier + + filter capacitor, output DC power transformer; step-down transformer generally refers to the individual; charger refers to the step-down and rectifying elements can not (or not perfect) filter capacitor. Because the filtering effect is good, but on the charge performance is not good.Select the adapter as long as the voltage is the same and the current is greater than or equal to the adapter.
The power adapter is a power device specially designed for this electrical appliance. It can completely replace the original DC power supply. It can meet all the power requirements of the equipment and make the equipment work properly,The power transformer is 220V AC conversion into low AC voltage device, must be rectified and other circuits to access the electrical power supplyCharger generally output current is small, is to charge the battery equipment, is characterized by constant current power supply, to meet the battery charging characteristics, it can not replace the equipment power supply, can not meet the equipment power consumption,
