Udindo wa Chip Capacitors

Kulambalala

A bypass capacitor ndi chipangizo chosungiramo mphamvu chomwe chimapereka mphamvu ku chipangizo chapafupi, chomwe chimatulutsa zotulutsa zowongolera ndikuchepetsa kufunikira kwa katundu.Monga batire yaing'ono yowonjezedwanso, bypass capacitor imatha kulipiritsidwa ndikutulutsidwa ku chipangizocho.Kuti muchepetse impedance, bypass capacitor iyenera kuyikidwa pafupi ndi pini yamagetsi ndi pini yapansi ya chipangizo chonyamula katundu.Iyi ndi njira yabwino yopewera kukwera komwe kungathe kuchitika pansi komanso phokoso lomwe limadza chifukwa cha kuchulukitsitsa kolowera.Kuthekera kwa nthaka ndi kutsika kwa voteji pamalumikizidwe apansi pamene akudutsa muburr wamakono.

Kuthetsa banja

Decoupling, yomwe imadziwikanso kuti decoupling.Pankhani ya dera, nthawi zonse imatha kusiyanitsa pakati pa gwero lomwe limayendetsedwa ndi katundu womwe umayendetsedwa.Ngati katundu capacitance ndi yaikulu, dera galimoto liyenera kulipira ndi kutulutsa capacitor kumaliza chizindikiro kulumpha, ndipo panopa ndi yaikulu pamene kukwera m'mphepete ndi motsetsereka, kotero kuti panopa lotengeka adzayamwa lalikulu kotunga panopa, ndi chifukwa. ku inductance mu dera, kukana (makamaka inductance pa chip pin, yomwe idzapangitse kuphulika), panopa ndi phokoso logwirizana ndi zomwe zikuchitika, zomwe zidzakhudza gawo lakutsogolo Ichi ndi chomwe chimatchedwa " kugwirizana”.

Decoupling capacitor ndikuchita gawo la "batri", kuti akwaniritse kusintha kwa kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake

Kuphatikiza bypass capacitor ndi decoupling capacitor kudzakhala kosavuta kumvetsetsa.The bypass capacitor kwenikweni imadumphira, koma bypass capacitor nthawi zambiri imatanthawuza njira yodutsa pafupipafupi, yomwe ndi kukonza njira yochepetsera yocheperako yaphokoso losintha pafupipafupi.High-frequency bypass capacitor nthawi zambiri imakhala yaying'ono, malinga ndi ma frequency a resonant nthawi zambiri amatengedwa 0.1μF, 0.01μF, etc.;pamene mphamvu ya decoupling capacitor nthawi zambiri imakhala yokulirapo, ikhoza kukhala 10μF kapena yokulirapo, malinga ndi magawo ogawa muderali, komanso kukula kwa kusintha komwe kumayendetsa kuti mudziwe.Bypass ndikusefa kusokoneza kwa siginecha yolowera, pomwe kuphatikizira ndikusefa kusokoneza kwa sigino yotulutsa kuletsa chizindikiro chosokoneza kuti chisabwererenso kumagetsi.Izi ziyenera kukhala kusiyana kofunikira pakati pawo.

Kusefa

Mwachidziwitso (ie kuganiza kuti capacitor ndi yoyera), kukulirakulira kwa capacitance, kutsika kwa impedance ndi kumtunda kwafupipafupi komwe kumadutsa.Koma pochita, ma capacitor ambiri opitilira 1μF ndi ma electrolytic capacitors, omwe ali ndi gawo lalikulu la inductive, kotero kuti kusokoneza kumawonjezeka m'malo mwake pambuyo poti ma frequency ali apamwamba.Nthawi zina mukhoza kuona lalikulu capacitance electrolytic capacitor mofanana ndi capacitor yaing'ono, pamene capacitor lalikulu kudzera pafupipafupi otsika, capacitor yaing'ono kudzera pafupipafupi mkulu.Udindo wa capacitance ndikudutsa kukana kwakukulu kutsika, kudzera pamafupipafupi kukana pafupipafupi.Kukula kwa capacitance, ndikosavuta kupitilira pafupipafupi.Amagwiritsidwa ntchito makamaka pakusefa, fyuluta yayikulu (1000μF) fyuluta yotsika, yaing'ono capacitor (20pF) fyuluta yokwera kwambiri.Ogwiritsa ntchito ena ayerekeza moyerekeza capacitor ya fyuluta ndi "dziwe lamadzi".Popeza voteji pamapeto onse a capacitor sasintha mwadzidzidzi, zikhoza kuwoneka kuti kumtunda kwa ma frequency a chizindikiro ndi, kuwonjezereka kwakukulu, komwe kunganenedwe momveka bwino kuti capacitor ili ngati dziwe lamadzi, osati chifukwa cha attenuation. madontho ochepa a madzi kuti agwirizane kapena asungunuke kusintha kwa kuchuluka kwa madzi.Imasintha kusintha kwa magetsi kukhala kusintha kwamakono, ndipo kumtunda kwafupipafupi, kumapangitsa kuti phokoso likhale lokwera kwambiri, motero limasokoneza magetsi.Kusefa ndi njira yolipirira, kutulutsa.

Kusungirako mphamvu

Capacitor yosungirako mphamvu imasonkhanitsa ndalama kudzera mu rectifier ndikusamutsa mphamvu yosungidwa kudzera mu converter imatsogolera kutulutsa mphamvu.Aluminium electrolytic capacitors okhala ndi ma voltage 40 mpaka 450 VDC ndi ma capacitance values ​​pakati pa 220 ndi 150,000 μF (monga B43504 kapena B43505 kuchokera ku EPCOS) amagwiritsidwa ntchito kwambiri.Malingana ndi zofunikira zamagetsi, zipangizozi nthawi zina zimagwirizanitsidwa mndandanda, mofanana kapena kuphatikiza kwake.Pamagetsi okhala ndi mphamvu yopitilira 10 kW, ma capacitor okulirapo owoneka ngati chitini nthawi zambiri amagwiritsidwa ntchito.

Sankhani ndi Kuyika MakinaMawonekedwe--NeoDen10

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