Is switching power and transformer the same thing?
This is not a matter of time, the switching power supply is to control the power supply, the transformer is to change the size of the voltage, the transformer in the case of power to control the voltage.
Switching power supply is used to control the switch through the circuit for high-speed pass and cut off. The conversion of direct current into high-frequency alternating current is provided to the transformer for voltage change to produce the required group or groups of voltages. The transformer is voltage-converted by magnetic coupling. The switching power supply is in a field and can not be used instead of the transformer. Output without transformer, rectifier, filter, regulator way pure.
Not the same thing.
Simply put, the transformer is a circuit of electronic components, and switching power supply is composed of a number of electronic components can achieve the corresponding power conversion circuit.
That is, from the function:
Different switching power supply can be a variety of different forms of electricity into another form of electricity, such as:
Can complete the AC and DC high / low voltage conversion; can complete the AC high / low frequency conversion; can complete the AC / DC conversion and so on. (Switching power supply which can use the transformer as a circuit component)
And if only a well-designed transformer as an electronic component, it can only achieve a fixed frequency AC high / low voltage conversion.
