Iicapacitors ze-ceramic zombane ophezulu zinokusetyenziswa njenge-decoupling capacitors. Ezi capacitors zenzelwe ukusebenza kwi-voltages ephezulu kwaye zingasetyenziselwa ukulawula utshintsho lwangoku lombane kwisekethe yokuqhuba ukuthintela ukuphazanyiswa kunye nokunciphisa i-impedance yokuphazamisa i-high-frequency. Nangona kunjalo, iintlobo ezithile kunye neemodeli zombane ophezulu we-ceramic capacitors kufuneka zikhethwe ngokusekelwe kwiimfuno zesekethe kunye ne-voltage / yangoku yokulinganisa yamacandelo asetyenziswe kwisekethe. Kuyacetyiswa ukuba udibane nomenzi we-www.hv-caps.com okanye umhambisi ukuqinisekisa ukuba i-capacitor ye-ceramic ekhethiweyo ephezulu yombane ifanelekile ukusetyenziswa njenge-capacitor yokuqhawula kwisicelo esithile.
nantsi eminye imizekelo yemifanekiso yesekethe ebonisa ukusetyenziswa kwee-capacitors zokuqhawula:
Kulo mzobo wesiphaluka, i-capacitor (C) yi-decoupling capacitor edibeneyo phakathi kokunikezelwa kwamandla kunye nomhlaba. Inceda ukususa ingxolo ephezulu-frequency ukusuka kwisignali yokufaka eyenziwa ngenxa yokutshintsha kunye nezinye izinto.
2. Isekethe yedijithali usebenzisa i-decoupling capacitors
Kulo mzobo wesiphaluka, ii-capacitors ezimbini ze-decoupling (C1 kunye ne-C2) zisetyenzisiweyo, enye ngaphesheya komqhubi kunye nomnye ngaphaya komthwalo. I-capacitors inceda ukususa ingxolo eyenziwe ngenxa yokutshintsha, ukunciphisa ukudibanisa kunye nokuphazamiseka phakathi komqhubi kunye nomthwalo.
3. Umbane wokubonelela ngombane usebenzisa
Kulo mzobo wesiphaluka, i-decoupling capacitor (C2) isetyenziselwa ukulawula ukukhutshwa kombane wombane. Inceda ukucoca ingxolo eveliswa kwisekethe yonikezelo lwamandla kunye nokunciphisa ukudibanisa kunye nokuphazamiseka phakathi kwesekethe kunye nezixhobo ezisebenzisa amandla ombane.
Okulandelayo ngumbuzo ohlala ubuza malunga "ne-decoupling capacitors"
1) Yintoni i-decoupling capacitors?
I-Decoupling capacitors zizinto ze-elektroniki ezinceda ukuhluza ingxolo ye-high-frequency kunye nokuguquguquka kwamandla ombane. Idibaniswe phakathi komzila wombane kunye nomhlaba, basebenza njengendlela ephantsi ye-impedance ye-frequencies ephezulu ukuya emhlabeni, okunciphisa inani lengxolo engena kwisiphaluka.
2) Zisebenza njani i-decoupling capacitors?
I-Decoupling capacitors yenza unikezelo lwamandla lwexesha elifutshane kwiimpawu ze-high-frequency ukutshintsha phakathi kwamandla kunye neentsimbi zomhlaba. Ngokuvalela amandla okujikeleza okuphezulu ukuya emhlabeni, banokunciphisa ingxolo yonikezelo lwamandla kwaye banciphise ukudityaniswa kwemiqondiso eyahlukeneyo.
3) Zisetyenziswa phi ii-decoupling capacitors?
I-Decoupling capacitors isetyenziswa ngokuqhelekileyo kwizixhobo zombane ezifana ne-microprocessors, iisekethe ezidibeneyo, i-amplifiers, kunye nombane wamandla. Zikwasetyenziswa kwizicelo ze-high-frequency kwaye apho i-signal-to-noise-ratio ephantsi ibalulekile.
4) Yintoni i-capacitor shunting?
I-Capacitor shunting yisenzo sokudibanisa i-capacitor phakathi kwee-nodes ezimbini kwisekethe ye-elektroniki ukunciphisa ingxolo okanye ukudibanisa umqondiso phakathi kwabo. Isetyenziswa ngokuqhelekileyo kwi-decoupling capacitors njengendlela yokuphucula umgangatho wokubonelela kwamandla kunye nokucinezela i-EMI.
5) Ziyenza njani i-decoupling capacitors ingxolo yomhlaba?
I-Decoupling capacitors inciphisa ingxolo yomhlaba ngokubonelela ngendlela ephantsi yokuthintela izibonakaliso ze-high-frequency ukuya emhlabeni. I-capacitor isebenza njengomthombo wamandla wexesha elifutshane kwaye inceda ukunciphisa umthamo wamandla onokuhamba ngenqwelomoya.
Ewe, i-decoupling capacitors inokucinezela i-EMI ngokunciphisa inani lengxolo ephezulu-frequency engena kwisekethe. Babonelela ngendlela ephantsi yokuthintela imiqondiso yesantya esiphezulu ukuya emhlabeni, benciphisa umyinge wengxolo elahlekileyo enokuthi idibanise kwezinye imiqondiso.
7) Kutheni i-decoupling capacitors ibalulekile kwiisekethe zombane?
I-Decoupling capacitors idlala indima ebalulekileyo kuyilo lwesekethe ye-elektroniki ngokunciphisa ingxolo kunye nokuguquguquka kwamandla ombane okunokuthi kube nefuthe ekusebenzeni kwenkqubo. Banceda ukugcina ingqibelelo yesignali, ukunciphisa i-EMI kunye nengxolo yomhlaba, ukukhusela ekuthotyweni kokunikezelwa kwamandla, kunye nokuphucula ukusebenza kwesekethe jikelele.
8) Ingaba ingxolo ephezulu yefrikhwensi kunye nokudibanisa umqondiso kuzichaphazela njani iisekethe zombane?
Ingxolo ephezulu yomsindo kunye nokudibanisa umqondiso kunokukhokelela ekunciphiseni ukusebenza kunye nokuthembeka kwiisekethe ze-elektroniki. Zinokubangela ukuphazamiseka komqondiso okungafunwayo, ukunciphisa imida yengxolo, kunye nokunyusa umngcipheko wokungaphumeleli kwenkqubo.
9) Uzikhetha njani ii-capacitors zokuqhawula ezifanelekileyo kwisicelo sakho?
Ukukhethwa kwee-decoupling capacitors kuxhomekeke kwiimfuno ezithile zesicelo ezifana noluhlu lwamafrikhwensi, ukulinganiswa kombane, kunye nexabiso le-capacitance. Kukwaxhomekeke kwinqanaba lengxolo ekhoyo kwinkqubo kunye nemiqobo yohlahlo lwabiwo-mali.
10) Ziziphi iingenelo zokusebenzisa i-decoupling capacitors kwisixhobo sombane?
Izibonelelo zokusebenzisa i-decoupling capacitors kwizixhobo zombane ziquka umgangatho ongcono wesignali, ukuphuculwa kozinzo lwesekethe, ukunciphisa ingxolo yokunikezelwa kwamandla, kunye nokukhuselwa kwi-EMI. Banokunceda ukunciphisa ingxolo yomhlaba kunye nokuphucula ukuthembeka ngokubanzi kwenkqubo.
Le yimizekelo embalwa yemizobo yesekethe esebenzisa i-decoupling capacitors. Isekethe ethile kunye ne-decoupling capacitor values esetyenzisiweyo iya kuhluka ngokuxhomekeka kwisicelo kunye neemfuno zesekethe.
