Ma thermal pads amagwiritsidwa ntchito kwambiri mu Power Supply Adapter, zomwe zimapangitsa kuti magwiridwe antchito a power adapter akhale olimba kwambiri.
Mtundu wa adaputala yamagetsi
Malo omwe magetsi amafunikira:
1. Chip yayikulu ya magetsi: Chip yayikulu ya magetsi ambiri nthawi zambiri imakhala ndi zofunikira kwambiri pakuchotsa kutentha, monga magetsi a UPS, chifukwa cha mphamvu yake yamagetsi, chip yayikulu iyenera kunyamula mphamvu yogwira ntchito ya makina onse, panthawiyi idzasonkhanitsa kutentha kwambiri, chifukwa chake tikufunika zinthu zoyendetsera kutentha ngati njira yabwino yoyendetsera kutentha.
2. Transistor ya MOS: Transistor ya MOS ndiye gawo lalikulu kwambiri la kutentha kupatula chip chachikulu cha magetsi, imafunika kugwiritsa ntchito mitundu yambiri ya zinthu zoyendetsera kutentha, monga pepala loteteza kutentha, mafuta odzola, chivundikiro cha kutentha, ndi zina zotero.
3. Transformer: Transformer ndi chida chosinthira mphamvu, chomwe chimagwira ntchito yosinthira mphamvu yamagetsi, mphamvu yamagetsi ndi kukana. Komabe, chifukwa cha magwiridwe antchito apadera a transformer, kugwiritsa ntchito zinthu zoyendetsera kutentha kudzakhalanso ndi zofunikira zapadera.
Kugwiritsa ntchito adaputala yamagetsi I
Transistor ya MOS
Chojambulira
Diode/transistor
Transformer
Pedi yotenthetsera silicone yotenthetsera kutentha
Guluu woyendetsa kutentha
Pedi yotenthetsera
Guluu woyendetsa kutentha
Sinki yotenthetsera 1
Sinki yotenthetsera 2
Pedi yotenthetsera
Chivundikiro
Kugwiritsa ntchito pedi yotenthetsera kutentha: tsekani transistor ya MOS ndi sinki yotenthetsera ya aluminiyamu ndi zomangira.
Kugwiritsa ntchito thermal pad: Dzazani mpata wololera pakati pa diode ndi aluminiyamu heat sink, ndikusamutsa kutentha kwa diode kupita ku aluminiyamu heat sink.
Kugwiritsa ntchito adaputala yamagetsi II
Chophimba kutentha pa pini ya zida zamagetsi kumbuyo kwa PCB.
Ntchito 1: Tumizani kutentha kwa zipangizo zamagetsi ku chivundikiro kuti kutentha kuthe.
Ntchito 2: Phimbani mapini, tetezani kuti kutuluka kwa madzi ndi chivundikirocho chisabowoke, tetezani ntchito ya zida zamagetsi.