Cov Qauv thiab Cov Ntsiab Cai ntawm Cov Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob

Noj 441W charger ua piv txwv, chav ntsuas ntsuas kwv yees li 199.7mm x 90mm x 71.8mm thiab hnyav txog 838g. Nws nta ib qho kev sib xyaw ua ke nrog tsim - hauv cov khoom siv thiab cov khoom siv cables; qhov kawg tso zis yog nruab nrog lub ntsaws ua raws li Txoj Cai Tshiab Hauv Tebchaws thiab siv lub cev rov qab- kev sib txuas tiv thaiv tsim. Cov vaj tsev muaj xws li cov qhov cua qhov cua thiab ib qho ua tau - nyob rau hauv cov kiv cua txias los txhim kho cov cua kub dissipation, nrog rau lub teeb taw qhia kom pom cov xwm txheej them.
Sab hauv PCBA module siv cov txheej txheem potting ib nrab los txhim kho cov dej noo tiv thaiv, tiv thaiv cov khoom txawv teb chaws, thiab lub zog txhua yam. Cov khoom siv hluav taws xob tseem ceeb suav nrog: ib qho kev tawm tswv yim- sab fuse, varistor, NTC thermistor, rectifier choj, thiab siab -voltage lim capacitor; ib tug thawj switching transistor, transformer, thiab RCD snubber circuit nyob rau hauv lub hwj chim hloov dua siab tshiab seem; thiab ceev ceev - rov qab rectifier diode, lim capacitor, thiab thyristor (SCR) rau kev tiv thaiv rov qab tam sim no ntws ntawm qhov tso zis kawg. Tsis tas li ntawd, lub Circuit Court muaj xws li ib tug sampling resistor rau cov zis tam sim no nrhiav tau thiab ib tug LED qhia rau them raws li txoj cai. Cov khoom tshwj xeeb suav nrog Wayon WMK26N65C4 NMOS transistor rau thawj hloov thiab Jilaiwei BT152 thyristor.
Lub charger siv lub flyback switching power supply architecture. Nws lub ntsiab tswj nti yog Yijingwei EG1253, siab -kev ua haujlwm tam sim no- hom PWM tswj lub luag haujlwm rau mem tes- dav hloov pauv thaum lub zog hloov pauv. Cov txheej txheem them nyiaj yog tswj hwm los ntawm MCU mob siab rau, uas saib xyuas qhov kub thiab txias hauv lub sijhawm tiag tiag- ntawm lub thermistor los muab kev tiv thaiv overheat thiab ua kom muaj kev nyab xeeb ntawm kev them nyiaj.