The switching regulated power supply has multi-functional comprehensive protection: in addition to the most basic functions of stabilizing voltage, the regulator should also have overvoltage protection (over +10% of the output voltage), undervoltage protection (below -10% of the output voltage) ), phase loss protection, and short-circuit overload protection are the most basic protection functions. Spike suppression (optional): The power grid sometimes has spikes with high amplitude and narrow pulse width, which will break down electronic components with low withstand voltage. The anti-surge component of the regulated power supply can suppress such sharp pulses very well.