Tshintshela ukumelana nombane kunye neemfuno zokuvuza
Xa igalelo kunye nemveliso yombane yokutshintsha umbane ingaphezulu kwe-36V AC kunye ne-42V DC, ingxaki yokothuka kombane kufuneka iqwalaselwe. Imigaqo yokhuseleko: ukuvuza phakathi kwawo nawaphina amacandelo afikelelekayo okanye nayiphi na indawo efikelelekayo kunye nepali enye yonikezelo lwamandla ayiyi kuba ngaphezu kwe-0.7map okanye i-DC 2mA.
Xa umbane wokufaka uyi-220V yokutshintsha kombane, umgama wokuhamba phakathi kwendawo ebandayo kunye nomhlaba oshushu awuyi kuba ngaphantsi kwe-6mm, kwaye isithuba phakathi kwemigca yezibuko kuzo zombini iziphelo kufuneka sibe sikhulu kune-3mm.
Amandla ombane aphakathi kwamanqanaba aphambili esiguquli sombane aya kuba yi-3000V AC, kwaye ukuvuza okukhoyo ngoku kuya kuba yi-10mA. Ukuvuza okukhoyo kufuneka kube ngaphantsi kwe-10mA emva kovavanyo lomzuzu omnye
Isiphelo sokufaka sokutshintsha umbane siya kumelana namandla ombane emhlabeni (iqokobhe) ene-AC 1500V, setha ukuvuza okukhoyo ngoku njenge-10mA, kwaye wenze uvavanyo lokumelana namandla ombane kwimizuzu eyi-1, kwaye ukuvuza kwangoku kufuneka kube ngaphantsi kwe-10mA.
I-DC 500V isetyenziselwa ukumelana namandla ombane wesiphelo sesiphumo sokuhambisa umbane emhlabeni (iqokobhe), kwaye ukuvuza okukhoyo ngoku kumiselwe njenge-10mA. Qhuba uvavanyo lwamandla ombane ngomzuzu omnye, kwaye ukuvuza okukhoyo kufuneka kube ngaphantsi kwe-1mA.
Iimfuno zomgama okhuselekileyo womgama wokutshintsha
Umgama wokhuseleko phakathi kwecala kunye necala lesibini lale migca mibini: 6mm, kunye no-1mm, islotting nayo kufanele ibe yi-4.5mm.
Umgama wokhuseleko phakathi kwecala kunye necala lesibini kumgca wesithathu: 6mm, kunye ne-1mm, islotting nayo kufanele ibe yi-4.5mm.
Umgama wokhuseleko phakathi kweefoyile ezimbini zobhedu lwefuse> 2.5mm. Yongeza 1mm, kwaye slotting nayo 1.5mm.
Umgama phakathi kwe-LN, l-gnd kunye n-gnd mkhulu kune-3.5mm.
Isithuba sokucoca ulwelo capacitor pin spacing> 4mm.
Umgama wokhuseleko phakathi kwamanqanaba aphambili> 6mm.
Ukutshintsha umbane weemfuno zombane
Phakathi kwefoyile yobhedu kunye nefoyile yobhedu: 0.5mm
Phakathi kwefoyile yobhedu kunye ne-solder edibeneyo: 0.75mm
Phakathi kwamalungu athengiswayo: 1.0mm
Phakathi kwefoyile yobhedu kunye nomda weplate: 0.25mm
Phakathi komphetho womngxuma kunye nomda womngxuma: 1.0mm
Phakathi komphetho womngxuma kunye nomphetho weplate: 1.0mm
Umgca wefoyile yobhedu> 0.3mm.
Ukujika kwe-45 °
Isithuba esilinganayo siyafuneka kwiingcingo phakathi kwemigca efanayo.
Iimfuno zokhuseleko zokutshintsha umbane
Fumana ifuse fuse efunwa yimigaqo yokhuseleko ukusuka kumacandelo emigaqo yokhuseleko, kunye nomgama wokuhamba phakathi kweephedi ezimbini ngu> 3.0mm (min). Kwimeko yesithuba sesekethe esifutshane, i-capacitors X kunye no-Y baya kuba kummiselo wokhuseleko. Ijonga ukumelana namandla ombane kunye nokuvuza okuvumelekileyo okwangoku. Kwimeko yetropiki, ukuvuza okukhoyo kwezixhobo kuya kuba ngaphantsi kwe-0.7ma, izixhobo ezisebenza kwimeko-bume epholileyo ziya kuba ngaphantsi kwe-0.35ma, kwaye amandla ombane ngokubanzi awuyi kuba mkhulu kune-4700pf. Ukuxhathisa kokukhutshwa kuya kongezwa kwi-x capacitor ngomthamo> 0.1uF. Emva kokuba izixhobo zokusebenza eziqhelekileyo zicinyiwe, umbane phakathi kweeplagi awuyi kuba mkhulu kune-42V ngaphakathi kwe-1s.
Ukutshintsha iimfuno zokukhuselwa kombane
Xa amandla apheleleyo okuhambisa umbane mkhulu kune-15W, uvavanyo lwesekethe olufutshane luya kwenziwa.
Xa isiphelo sesiphelo sifutshane, akusayi kubakho bushushu okanye umlilo kwisekethe, okanye ixesha lokutsha liya kuba phakathi kwe-3.
Xa umgama phakathi kwemigca emeleneyo ungaphantsi kwe-0.2mm, unokuthathwa njengesekethe emfutshane.
Uvavanyo olufutshane lwesekethe luya kuqhutywa nge-capacitor electrolytic. Ngeli xesha, kuba i-electrolytic capacitor kulula ukuyisilela, ingqalelo iya kuhlawulwa kwizixhobo ngexesha lovavanyo olufutshane lwesekethe ukunqanda umlilo.
Izinyithi ezimbini ezineempawu ezahlukeneyo azinakusetyenziswa njengezihlanganisi kuba ziya kuvelisa ukubola kombane.
Indawo yoqhakamshelwano phakathi kwe-solder ngokudibeneyo kunye ne-pin yecandelo iya kuba nkulu kunendawo enqamlezayo yecandelo lepini. Ngaphandle koko, ithathwa njenge-welding engalunganga.
Isixhobo esichaphazela ukutshintshwa kombane – i-electrolytic capacitor
I-Electrolytic capacitor sisixhobo esingakhuselekanga ekutshintsheni unikezelo lwamandla kwaye inefuthe kwixesha elichazayo phakathi kokungaphumeleli (MBTF) kokutshintsha kombane.
Emva kokuba i-electrolytic capacitor isetyenzisiwe kangangexesha elithile, i-capacitance iya kuncipha kwaye umbane we-ripple uya kunyuka, ke kulula ukufudumeza kwaye usilele.
Xa amandla aphezulu e-electrolytic capacitor ehluleka ukuvelisa ubushushu, oko kuya kubangela ukuqhuma. Ke ngoko, i-electrolytic capacitor enobubanzi obungaphezulu kwe-10mm iya kuba nomsebenzi wokuqhushumba. Ukulungiselela i-electrolytic capacitor ngomsebenzi wokuqhushumba-ubungqina, kuvulwa indawo emxinwa ephezulu yegobolondo ye-capacitor, kwaye kushiyeke umngxunya wokukhupha emazantsi epini.
Ubomi benkonzo ye-capacitor buxhomekeke ikakhulu kubushushu bangaphakathi be-capacitor, kwaye ukunyuka kweqondo lobushushu kwe-capacitor ikakhulu kunxulunyaniswa namandla ombane angoku kunye nokuhamba kwamandla ombane. Ke ngoko, iiparitha zamandla ezihamba ngoku kunye neethrafikhi ezinikezwe zii-capacitors ze-electrolytic ngokubanzi ngamaxabiso akhoyo ngoku phantsi kweemeko zobushushu obuthile bokusebenza (85 ℃ okanye 105 ℃) kunye nobomi benkonzo ethile (iiyure ezingama-2000), Oko kukuthi, phantsi kwemeko yokuxhuzula I-voltage yangoku kunye ne-ripple, ubomi benkonzo ye-electrolytic capacitor iiyure ezingama-2000 kuphela. Xa ubomi benkonzo ye-capacitor kufuneka ukuba ngaphezulu kweeyure ezingama-2000, ubomi benkonzo ye-capacitor buya kuyilwa ngokwale fomyula ilandelayo.