Characteristics and differences between power adapters and switching power supplies?
Power adapters differ from switching power supplies in terms of specifications, shape, precision, density, performance and other parameters.The application is also different.The power adapter is mainly suitable for small electrical appliances and electronics, while the switching power supply is the switching current equipment that controls the whole switch.Applicable to all electronic devices.Below small make up to focus on the power adapter and switch power characteristics and differences.
Characteristics of switching power supply:
It is to use the circuit to control the switch tube through the high-speed channel and cut off, direct current into high frequency alternating current to provide transformer for voltage transformation, so as to produce a group or more groups of voltage needed.The reason for switching to HIGH-FREQUENCY AC is that the efficiency of high-frequency AC in the transformer converter circuit is much higher than 50HZ,Therefore, the switching transformer can be done in a small way. Besides, it is not very hot when working, and the cost is very low. If the switching power supply is not changed from 50HZ to hf, it is meaningless.
Features of power adapter:
Power adapter manufacturers produce power converters (AC to DC), which convert most of the current from AC to DC.It doesn't protect your computer, but it has a power store (also known as a charger) inside, so it can protect your computer in the event of a power failure.Switching power supply and adapter are switching power supply, which are composed of high-frequency switching tube and its control circuit.And adapter power supply is a voltage regulator switch power supply, switch power charger with floating charge function, voltage is with the current and become large, to the voltage and no current.