Iqhaza lama-Chip Capacitors

Ukudlula

I-bypass capacitor iyisisetshenziswa sokugcina amandla esinikeza amandla kudivayisi yasendaweni, elinganisa ukuphuma kwesilawuli futhi sinciphise isidingo somthwalo.Njengebhethri elincane elishajekayo, i-bypass capacitor ingashajwa futhi ikhishwe kudivayisi.Ukuze unciphise i-impedance, i-bypass capacitor kufanele ibekwe eduze ngangokunokwenzeka nephinikhodi yokuhlinzeka kanye nephinikhodi yaphansi yedivayisi yokulayisha.Lena indlela enhle yokuvimbela ukuphakama okungase kube khona phansi nomsindo obangelwa amanani okufaka eqile.Amandla aphansi ukuwa kwe-voltage ekuxhumekeni komhlaba uma udlula ku-burr yamanje ephezulu.

Ukuhlukanisa

I-Decoupling, eyaziwa nangokuthi i-decoupling.Ngokuphathelene nesekhethi, ingahlukaniswa njalo phakathi komthombo oqhutshwayo kanye nomthwalo oqhutshwayo.Uma amandla okulayisha makhulu uma kuqhathaniswa, isifunda sokushayela kufanele sikhokhise futhi sikhiphe i-capacitor ukuze siqedele ukugxuma kwesignali, futhi yamanje inkulu lapho unqenqema olukhuphukayo lukhuphuka, ukuze i-current eshayelwa izomunca umthamo omkhulu wamanje, futhi ngenxa yalokho. ku-inductance kumjikelezo, ukumelana (ikakhulukazi i-inductance ku-chip pin, ezokhiqiza i-bounce), lokhu okwamanje kungumsindo ohlobene nesimo esivamile, esizothinta isiteji sangaphambili Lokhu okubizwa ngokuthi " ukuhlanganisa”.

I-decoupling capacitor iwukuba idlale indima "yebhethri", ukuhlangabezana nezinguquko kumjikelezo wedrayivu, ukugwema ukuphazamiseka kokuhlanganisa.

Ukuhlanganisa i-bypass capacitor kanye ne-decoupling capacitor kuzoba lula ukuyiqonda.I-bypass capacitor empeleni iyahlukanisa, kodwa i-bypass capacitor ngokuvamile ibhekisela ekudluleleni kwefrikhwensi ephezulu, okuwukuthuthukisa indlela yokudonsa ephansi yomsindo wokushintsha imvamisa.I-high-frequency bypass capacitor ngokuvamile incane, ngokusho kwe-resonant frequency ngokuvamile ithathwa 0.1μF, 0.01μF, njll.;kuyilapho amandla e-decoupling capacitor ngokuvamile emakhulu, angaba ngu-10μF noma ngaphezulu, ngokuya ngemingcele yokusabalalisa kusekethe, kanye nosayizi woshintsho kudrayivu yamanje ukuze kunqunywe.I-Bypass iwukuhlunga ukuphazamisa kusignali yokokufaka, kuyilapho ukunqamula kuwukuhlunga ukuphazamisa kusignali yokuphumayo ukuze kuvinjwe isignali yokuphazamiseka ukuthi ingabuyeli ekunikezeni amandla.Lokhu kufanele kube umehluko obalulekile phakathi kwabo.

Ukuhlunga

Ngokwethiyori (okungukuthi kucatshangwa ukuthi i-capacitor ihlanzekile), i-capacitance inkulu, i-impedance ephansi futhi iphakama imvamisa edlula ngayo.Kodwa ekusebenzeni, ama-capacitor amaningi angaphezu kwe-1μF angama-electrolytic capacitor, anengxenye enkulu yokungenisa, ngakho-ke i-impedance izokwanda esikhundleni ngemva kokuba imvamisa iphezulu.Ngezinye izikhathi ungabona i-capacitance enkulu ye-electrolytic capacitor ngokuhambisana ne-capacitor encane, lapho i-capacitor enkulu ngokusebenzisa imvamisa ephansi, i-capacitor encane ngokusebenzisa imvamisa ephezulu.Indima ye-capacitance ukudlulisa ukumelana okuphezulu okuphansi, ngokusebenzisa imvamisa ephezulu yokumelana nemvamisa ephansi.I-capacitance enkulu, kulula ukudlula imvamisa ephansi.Isetshenziswe ngokukhethekile ekuhlungeni, isihlungi esikhulu se-capacitor (1000μF) isihlungi esiphansi, i-capacitor encane (20pF) isihlungi esiphezulu.Abanye abasebenzisi baqhathanise i-capacitor yokuhlunga “nechibi lamanzi”.Njengoba i-voltage emikhawulweni yomibili ye-capacitor ingaguquki ngokuzumayo, kungabonakala ukuthi ukuphakama kwemvamisa yesignali, kukhulu ukuncishiswa, okungashiwo ngokucacile ukuthi i-capacitor ifana nechibi lamanzi, ayibangelwa i-attenuation. amaconsi ambalwa amanzi ukuze ahlanganise noma ahwamulise ushintsho kumthamo wamanzi.Iguqula uguquko lwe-voltage lube uguquko lwamanje, futhi uma imvamisa iphezulu, iphakama i-high current, ngaleyo ndlela ivimbe i-voltage.Ukuhlunga kuyinqubo yokushaja, ukukhipha.

Isitoreji samandla

I-capacitor yokugcina amandla iqoqa ishaji ngesilungisi futhi idlulisa amandla agciniwe ngesiguquli esiholela ekuphumeni kwamandla kagesi.Ama-Aluminium electrolytic capacitor anezilinganiso zamandla kagesi angu-40 kuya ku-450 VDC kanye namanani e-capacitance phakathi kuka-220 no-150,000 μF (afana ne-B43504 noma i-B43505 evela ku-EPCOS) asetshenziswa kakhulu.Ngokuya ngezidingo zokunikezwa kwamandla, amadivaysi kwesinye isikhathi axhunywa ngochungechunge, ngokuhambisana noma inhlanganisela yakho.Eziphakelini zamandla ezinezinga lamandla angaphezu kuka-10 kW, ama-capacitor wesikulufa esimise okwekani elikhulu avame ukusetshenziswa.

Khetha bese Ubeka UmshiniIzici—-I-NeoDen10

1. Beka 0201, QFN kanye ne-QFP Fine-pitch IC ngokunemba okuphezulu.

2. Ngaphambili nangemuva ngesizukulwane sesine sesizukulwane sesine sezinhlelo zokuqaphela ikhamera endizayo enesivinini esiphezulu, izinzwa ze-US ON, amalensi emboni angu-28mm, amashothi endizayo kanye nokubonwa okunembayo okuphezulu.

3. Amakhanda azimele angu-8 anesistimu yokulawula iluphu evalwe ngokugcwele asekela konke okuphakelayo okungu-8mm ngesikhathi esisodwa, ngesivinini esifika ku-13,000 CPH.

4. Ukuphakama kokuhamba Kufika ku-16mm, ukuklama okunembayo nokusebenza okuzinzile.

5. Sekela ithreyi yephalethi efika ku-4 yama-chips (ukucushwa kokuzikhethela), ububanzi obukhulu kanye nenketho eyengeziwe.