Ukugcinwa konikezelo lwamandla esikrini se-LED lunokwahlulwa lube ngamanyathelo amabini

(1) Kwimeko yokucima kombane, 'jonga, ivumba, buza, yenza umlinganiselo'

Jonga: Vula igobolondo lonikezelo lwamandla, jonga ukuba i-fuse ivuthelwe, kwaye ujonge imeko yangaphakathi yonikezelo lwamandla.Ukuba kukho iindawo ezitshileyo okanye iikhomponenti ezaphukileyo kwibhodi yePCB yobonelelo lwamandla, ugxininiso kufuneka lube ekujongeni amacandelo kunye neenxalenye zesekethe ezinxulumene apha.

Ivumba: Yinukisa ukuba kukho ivumba elivuthayo ngaphakathi kombane kwaye ujonge ukuba akukho zixhobo ezitshileyo na.

Umbuzo: Ndicela ukubuza malunga nenkqubo yokonakaliswa konikezelo lombane kunye nokuba kukho naziphi na izenzo ezingekho mthethweni ezithe zenziwa kubonelelo lombane.

Ukulinganisa: Ngaphambi kokukhanyisa, sebenzisa i-multimeter ukulinganisa i-voltage kuzo zombini iziphelo ze-high-voltage capacitor.Ukuba impazamo ibangelwa kukungaphumeleli kwamandla kwesikrini sokubonisa i-LED okanye isiphaluka esivulekileyo sokutshintsha ityhubhu, kwiimeko ezininzi, i-voltage kuzo zombini iziphelo ze-high-voltage filtering capacitor ayizange ikhutshwe, engaphezulu kwe-300 volts.Lumnka.Sebenzisa i-multimeter ukulinganisa ukuchasana kwangaphambili kunye nokubuyisela umva kuzo zombini iziphelo zomgca wamandla we-AC kunye nemeko yokutshaja ye-capacitor.Ixabiso lokumelana akufanele libe liphantsi kakhulu, ngaphandle koko kunokubakho isiphaluka esifutshane ngaphakathi kokunikezelwa kwamandla.I-Capacitors kufuneka ikwazi ukubiza kunye nokukhupha.Nqamula umthwalo kwaye ulinganise ukuchasana komhlaba kwiqela ngalinye lee-terminals zemveliso.Ngokuqhelekileyo, inaliti yemitha kufuneka ibe ne-capacitor yokutshaja kunye nokukhupha i-oscillation, kwaye isalathisi sokugqibela kufuneka sibe yixabiso lokuchasana lokuchaswa kokukhutshwa kwesiphaluka.

(2) Amandla ekubhaqweni

Emva kokukhanyisa, jonga ukuba ubonelelo lombane lutshisile na iifuse kwaye iinxalenye zomntu ngamnye zikhupha umsi.Ukuba kunjalo, cima unikezelo lombane ngexesha elifanelekileyo ukuze ulondolozwe.

Linganisa ukuba kukho imveliso ye-300V kuzo zombini iziphelo ze-high-voltage filter capacitor.Ukuba akunjalo, gxininisa ekujongeni i-diode yokulungisa, i-capacitor yokucoca, njl.

Ukulinganisa ukuba i-coil yesibini ye-high-frequency transformer inemveliso.Ukuba akukho mveliso, gxininisa ekujongeni ukuba i-tube yokutshintsha yonakele, ingaba ishukuma, kwaye ingaba isiphaluka sokukhusela sisebenza.Ukuba kukho, gxininisa ekuhloleni i-diode yokuhlaziya, i-capacitor yokucoca, i-tube yokulawula i-tube, njl. kwicala ngalinye lokuphuma.

Ukuba unikezelo lwamandla luqala kwaye luyeke ngokukhawuleza, lukwimeko ekhuselweyo.I-voltage ye-PWM yepini yokukhusela i-chip inokulinganiswa ngokuthe ngqo.Ukuba i-voltage idlula ixabiso elichaziweyo, libonisa ukuba amandla ombane akwimeko ekhuselweyo, kwaye isizathu sokukhusela kufuneka sihlolwe ngokucophelela.


Ixesha lokuposa: Aug-08-2023
Incoko ka-WhatsApp kwi-Intanethi!