As show:
Ashlee Posted on February 2, 2021
C1, C2 filter out ripples and spikes, and TVS1 stabilizes to prevent excessive output voltage.
Anika Posted on February 2, 2021
The middle one is the rectifier stack.
Marie Posted on February 2, 2021
The front is overcurrent protection and overvoltage protection, C1, C2 filtering, TVS1 voltage stabilization.
Arielle Posted on February 2, 2021
Fuse + NTC protection circuit prevents abnormal current and temperature, C1 smooth waveform takes into account low frequency C2 takes into account high frequency TVS1 voltage stabilization protection RL similar load.