Ukutshintsha imowudi eziguqulweyo, ezigqwesileyo ibhodi yesekethe eprintiweyo (PCB) ubeko lubalulekile ekusebenzeni kakuhle kwenkqubo. Ukuba uyilo lwe-PCB aluchanekanga, kunokubangela iziphumo ezilandelayo: ingxolo eninzi kwisekethe yolawulo kwaye ichaphazele uzinzo lwenkqubo; Ilahleko ezigqithisileyo kumgca wokulandela umkhondo we-PCB zichaphazela ukusebenza kwenkqubo; Ukubangela ukuphazamiseka okugqithisileyo kwe-electromagnetic kunye nokuchaphazela ukungqinelana kwenkqubo.

I-ZXLD1370 yindlela yokuguqula imo ye-multi-topology yokulawula umqhubi we-LED, i-topology nganye eyahlukeneyo ifakelwe izixhobo zangaphandle zokutshintsha. Umqhubi we-LED uyilungele inyani, ukonyusa okanye imo yokunyusa inkunzi.

Eli phepha liza kuthatha isixhobo se-ZXLD1370 njengomzekelo wokuxoxa ngokuqwalaselwa koyilo lwe-PCB kunye nokubonelela ngeziphakamiso ezifanelekileyo.

Cinga ngobubanzi bomkhondo

Ukutshintsha imijikelezo yombane, iswitshi esingundoqo kunye nezixhobo zombane ezinxulumene nazo zithwala imisinga emikhulu. Imizila esetyenziselwa ukudibanisa ezi zixhobo zinokuchasana okunxulumene nobukhulu babo, ububanzi, kunye nobude. Ubushushu obuveliswa kukungqukuqela okuhamba ngomkhondo kunganciphisi ukusebenza kuphela kodwa kuphakamisa nobushushu bomkhondo. Ukunciphisa ukunyuka kwamaqondo obushushu, kubalulekile ukuba uqinisekise ukuba ububanzi bomkhondo banele ukumelana nomgangatho wokutshintsha okwenziweyo.

Le nxaki ilandelayo ibonisa ubudlelwane phakathi kokunyuka kwamaqondo obushushu kunye nokulandela umkhondo wecandelo elinqamlezileyo.

Umkhondo wangaphakathi: I = 0.024 × I-DT kunye ne-0.44 TImes; 0.725

Mna = 0.048 × I-DT kunye ne-0.444 TImes; 0.725

Phi, I = ubuninzi bangoku (A); I-DT = ukunyuka kwamaqondo obushushu kuphakeme kunommandla (℃); Indawo enqamlezayo (MIL2).

Itheyibhile 1 ibonisa ubuncinci bobubanzi betreyini yomthamo okhoyo ngoku. Oku kusekwe kwiziphumo zezibalo ze-1oz / FT2 (35μm) yefoyile yobhedu enobushushu bokubonisa obonyuka ngo-20oC.

Itheyibhile 1: Ububanzi bomkhondo wangaphandle kunye nomthamo wangoku (20 ° C).

Itheyibhile 1: Ububanzi bomkhondo wangaphandle kunye nomthamo wangoku (20 ° C).

Ukutshintsha imo yokuguqula amandla esicelo esenziwe ngezixhobo ze-SMT, umphezulu wobhedu kwi-PCB unokusetyenziswa njengesitshisi sokufudumeza izixhobo zamandla. Ukunyuka kobushushu ngenxa yokuqhutywa ngoku kufuneka kuncitshiswe. Kuyacetyiswa ukuba ukunyuka kwamaqondo obushushu kulandelwe kuphela kwi-5 ° C.

Itheyibhile 2 ibonisa ubuncinci bobubanzi betreyini yomthamo okhoyo ngoku. Oku kusekwe kwiziphumo zezibalo ze-1oz / ft2 (35μm) yefoyile yobhedu enobushushu bokubonisa obonyuka ngo-5oC.

Itheyibhile 2: Ububanzi bomkhondo wangaphandle kunye nomthamo wangoku (5 ° C).

Itheyibhile 2: Ububanzi bomkhondo wangaphandle kunye nomthamo wangoku (5 ° C).

Qwalasela ubume bokulandela umkhondo

Uyilo lomkhondo kufuneka luyilwe ngokufanelekileyo ukufezekisa owona msebenzi mhle weZXLD1370 umqhubi we-LED. Ezi zikhokelo zilandelayo zenza ukuba izicelo ezisekwe kwi-ZXLD1370 ziyilelwe ukusebenza okuphezulu kuzo zombini i-buck kunye neendlela zokuphucula.