Hloov cov hluav taws xob thiab qhov xav tau los xau
Thaum cov tswv yim thiab tso tawm qhov hluav taws xob ntawm kev hloov hluav taws xob ntau dua 36V AC thiab 42V DC, qhov teeb meem hluav taws xob xav tau yuav tsum tau txiav txim siab. Cov cai tswj kev nyab xeeb: kev xau ntawm ob qhov nkag mus tau yooj yim lossis ib qho uas nkag tau yooj yim thiab ib tus ncej ntawm lub hwj chim yuav tsum tsis pub tshaj 0.7map lossis DC 2mA.
Thaum qhov hluav taws xob nkag yog 220V ntawm kev hloov pauv lub zog siv, qhov kev ncua deb ntawm qhov txias thiab av kub yuav tsum tsis pub tsawg tshaj 6 hli, thiab qhov sib nrug ntawm cov kab chaw nres nkoj ntawm ob qho kawg yuav tsum ntau dua 3 hli.
Kev tiv thaiv qhov hluav taws xob ntawm thawj theem ntawm kev hloov pauv hloov pauv yuav tsum yog 3000V AC, thiab qhov xau tam sim no yuav tsum yog 10mA. Cov dej ntws tawm tam sim no yuav tsum tsawg dua 10mA tom qab ntsuas ib feeb
Qhov kawg ntawm kev hloov pauv lub zog yuav tsum tiv qhov hluav taws xob rau hauv av (lub plhaub) nrog AC 1500V, teeb tsa qhov xau tam sim no li 10mA, thiab ua qhov ntsuas qhov ntsuas hluav taws xob rau 1 feeb, thiab tam sim no xau yuav tsum tsawg dua 10mA.
DC 500V yog siv rau kev tiv thaiv qhov hluav taws xob ntawm qhov kawg ntawm kev hloov pauv hluav taws xob rau hauv av (lub plhaub), thiab qhov xau tam sim no tau teeb tsa li 10mA. Ua qhov ntsuas qhov ntsuas hluav taws xob rau 1 feeb, thiab qhov xau tam sim no yuav tsum tsawg dua 10mA.
Yuav tsum ua kom muaj kev nyab xeeb nkag mus deb ntawm kev hloov
Qhov kev nyab xeeb nyob nruab nrab ntawm ob sab thiab ob sab ntawm ob kab: 6mm, ntxiv rau 1mm, qhov sib dhos yuav tsum yog 4.5mm.
Qhov kev nyab xeeb nyob nruab nrab ntawm ib sab thiab ob sab hauv kab thib peb: 6mm, ntxiv rau 1mm, qhov kev sib dhos yuav tsum yog 4.5mm.
Kev nyab xeeb nrug ntawm ob daim tooj liab ntawm fuse> 2.5mm. Ntxiv 1 hli, thiab qhov sib dhos yuav tsum yog 1.5 hli.
Qhov nrug nruab nrab ntawm LN, l-gnd thiab n-gnd yog ntau dua 3.5mm.
Thawj lim capacitor tus pin spacing> 4mm.
Kev nyab xeeb nrug ntawm thawj theem> 6mm.
Kev hloov pauv lub zog hluav taws xob PCB thaiv qhov xav tau
Nruab nrab ntawm cov ntawv ci tooj liab thiab tooj liab: 0.5 hli
Nruab nrab ntawm cov ntawv ci tooj liab thiab cov laug sib txuas: 0.75mm
Nruab nrab ntawm cov pob qij txha: 1.0 hli
Nruab nrab ntawm cov ntawv ci tooj liab thiab phaj ntug: 0.25mm
Nruab nrab ntawm qhov ntug thiab qhov ntug: 1.0mm
Nruab nrab ntawm qhov ntug thiab phaj ntug: 1.0mm
Cov ntawv ci tooj liab kab dav> 0.3 hli.
Tig lub kaum sab xis 45 °
Qhov sib npaug sib npaug yog xav tau rau thaiv ntawm cov kab sib dhos.
Yuav tsum muaj kev nyab xeeb rau kev hloov hluav taws xob
Tshawb nrhiav qhov fuse xav tau los ntawm txoj cai kev nyab xeeb los ntawm cov khoom siv ntawm txoj cai kev nyab xeeb, thiab qhov kev ncua deb ntawm ob lub pawm yog> 3.0mm (min). Nyob rau hauv cov xwm txheej ntawm theem luv luv Circuit Court, lub capacitors X thiab Y yuav tsum yog nyob rau hauv kev nyab xeeb kev tswj hwm. Nws txiav txim siab tiv thaiv qhov hluav taws xob thiab tso cai tso tawm tam sim no. Hauv ib puag ncig qhov chaw nyab xeeb, cov khoom siv tam sim no yuav tsum tsawg dua 0.7ma, cov cuab yeej ua haujlwm hauv ib puag ncig huab cua yuav tsum tsawg dua 0.35ma, thiab cov peev txheej y yuav tsum tsis pub ntau dua 4700pf. Kev tiv thaiv tawm yuav tsum tau ntxiv rau x capacitor nrog lub peev xwm> 0.1uF. Tom qab cov cuab yeej ua haujlwm ib txwm raug tua, qhov hluav taws xob nruab nrab ntawm cov ntsaws yuav tsum tsis ntau dua 42V hauv 1s.
Hloov kev tiv thaiv kev tiv thaiv hluav taws xob
Thaum tag nrho cov hluav taws xob tso tawm ntawm kev hloov pauv hluav taws xob ntau dua 15W, kev ntsuas luv luv yuav tsum tau ua.
Thaum lub davhlau ya nyob twg tso tawm luv luv, yuav tsum tsis muaj cua sov lossis hluav taws kub hauv Circuit Court, lossis lub sijhawm tua hluav taws yuav tsum tsis pub dhau 3.
Thaum qhov kev ncua deb ntawm cov kab uas nyob ib sab tsawg dua 0.2 hli, nws tuaj yeem suav tias yog luv Circuit Court.
Kev ntsuas hluav taws xob luv yuav tsum tau ua rau lub tshuab hluav taws xob hluav taws xob. Lub sijhawm no, vim tias lub tshuab hluav taws xob hluav taws xob tau yooj yim ua tsis tau, yuav tsum tau them nyiaj rau cov khoom siv thaum ntsuas hluav taws xob luv kom tiv thaiv hluav taws.
Ob lub hlau nrog cov khoom sib txawv tsis tuaj yeem siv ua cov khoom sib txuas vim tias lawv yuav tsim hluav taws xob xeb.
Qhov chaw sib cuag ntawm cov khoom siv sib txuas thiab tus pin tivthaiv yuav tsum ntau dua li thaj tsam ntawm ntu ntu ntawm tus pin tivthaiv. Txwv tsis pub, nws tau txiav txim siab ua qhov tsis zoo.
Cov cuab yeej cuam tshuam rau kev hloov pauv hluav taws xob – hluav taws xob hluav taws xob
Electrolytic capacitor yog lub cuab yeej tsis muaj kev nyab xeeb hauv kev hloov hluav taws xob thiab muaj kev cuam tshuam rau lub sijhawm nruab nrab ntawm kev ua tsis tiav (MBTF) ntawm kev hloov hluav taws xob.
Tom qab siv lub tshuab hluav taws xob hluav taws xob tau siv rau lub sijhawm, lub peev xwm yuav qis dua thiab lub zog hluav taws xob yuav nce ntxiv, yog li nws yooj yim rau cua sov thiab ua tsis tiav.
Thaum lub tshuab hluav taws xob muaj lub tshuab hluav taws xob tsis ua kom sov, nws feem ntau yuav ua rau tawg. Yog li ntawd, lub tshuab hluav taws xob hluav taws xob nrog lub taub ntau dua 10 hli yuav tsum muaj qhov ua pov thawj tawg. Rau lub tshuab hluav taws xob hluav taws xob nrog lub zog ua pov thawj tawg, lub qhov ntoo khaub lig qhib tau qhib rau sab saum toj ntawm lub plhaub capacitor, thiab lub qhov tso pa tawm sab hauv qab ntawm tus pin.
Qhov kev pab cuam lub neej ntawm lub capacitor feem ntau yog txiav txim siab los ntawm qhov kub ntawm lub capacitor, thiab qhov kub nce ntawm lub capacitor feem ntau cuam tshuam nrog ripple tam sim no thiab ripple voltage. Yog li ntawd, qhov ripple tam sim no thiab ripple qhov ntsuas tsis tau muab los ntawm cov tshuab hluav taws xob dav dav yog qhov ripple tam sim no qhov tseem ceeb hauv cov xwm txheej tshwj xeeb ua haujlwm kub (85 ℃ lossis 105 ℃) thiab kev pabcuam tshwj xeeb lub neej (2000 teev), Ntawd yog, nyob rau qhov xwm txheej ntawm ripple tam sim no thiab ripple voltage, kev pab lub neej ntawm electrolytic capacitor tsuas yog 2000 teev. Thaum qhov kev pab cuam lub neej ntawm lub tshuab hluav taws xob xav tau ntau dua 2000 teev, kev pab lub neej ntawm lub tshuab hluav taws xob yuav tsum tsim raws li cov qauv hauv qab no.