Hello steemit Friend
At this time I want to explain what is power supply
Power Supply is a hardware that serves to supply the direct voltage kekomponen in the casing that requires voltage.
The function of power supply in electronic devices is very important, because this component will divide the voltage for all other components in an electronic device. Power supply function as a DC current drain voltage jd DC current.
This is all I can say may be useful.
@sibeut