charger/adapter-小9直播体育免费直播下载ios

the charger/ adapter application includes the two functional sections of "primary side switch" and “secondary side synchronous rectification"

● primary side switch:

  1）common charger:  drive by high voltage dmos

  2）quick charger:  the main switch below 18w adopts planar mos, and that over 18w adopts sj mos

● synchronous rectification：driven by medium and low voltage mos, sgt mos is preferred

secondary side sampling function of the charger/ adaptor: driven by reference power supply circuit