Muaj ntau hom capacitors. Feem ntau muaj ob hom capacitors: fixed capacitor thiab variable capacitor. Lawv raug faib ua pawg nyob ntawm lawv qhov polarity xws li polarized thiab non-polarized. Cov positive thiab negative terminals cim rau ntawm cov capacitors. Cov polarized capacitors tsuas yog txuas tau hauv circuits hauv ib txoj kev xwb, thiab cov non-polarized capacitors tuaj yeem txuas rau lwm txoj kev ntawm circuits. Cov capacitors muaj cov yam ntxwv thiab cov lus qhia sib txawv hauv hluav taws xob. Raws li lawv cov yam ntxwv thiab cov lus qhia, lawv tuaj yeem siv rau hauv ntau daim ntawv thov.
Hom capacitors
1. Cov capacitors hluav taws xob
Cov no yog cov capacitors polarized. Lub anode lossis cov terminals zoo yog ua los ntawm hlau thiab los ntawm anodization lub oxide txheej yog tsim. Yog li no txheej ua haujlwm ua insulator. Muaj peb hom electrolytic capacitors uas yog siv rau ntau hom khoom sib txawv. Thiab cov no tuaj yeem faib ua raws li hauv qab no.
Cov khoom siv hluav taws xob txhuas
Cov khoom siv electrolytic ntawm Tantalum
Cov capacitors Niobium electrolytic
A. Cov khoom siv hluav taws xob txhuas
Hauv cov capacitors hom no, lub anode lossis lub davhlau ya nyob twg zoo yog ua los ntawm txhuas thiab qhov no ua haujlwm ua dielectric. Cov capacitors no pheej yig dua li lwm hom capacitors. Lawv muaj kev kam rau siab loj heev.
B. Cov khoom siv hluav taws xob Tantalum electrolytic
Hauv cov capacitors no, cov hlau siv ua electrode. Cov hom no muaj nyob rau hauv hom lead thiab hauv daim ntawv chip rau cov capacitors mounting saum npoo av muaj peev xwm (10 nf txog 100 mf). Nws muaj kev ua haujlwm volumetric siab. Lawv muaj kev kam rau siab tsawg. Lawv ruaj khov thiab txhim khu kev qha heev.
C. Cov khoom siv hluav taws xob Niobium
Cov no tsis nrov npaum li cov Aluminium electrolytic capacitors thiab Tantalum electrolytic capacitor. Nws muaj tus nqi qis dua lossis pheej yig dua.
2. Cov khoom siv ua los ntawm cov khoom siv ceramic
Cov no tsis nrov npaum li cov Aluminium electrolytic capacitors thiab Tantalum electrolytic capacitor. Nws muaj tus nqi qis dua lossis pheej yig dua.
•Chav Kawm I-Kev ruaj khov siab thiab kev poob qis
1. muaj peev xwm ua tau zoo thiab ruaj khov
2. zoo heev thermal stability
3. kev kam rau siab (Kuv 0.5%)
4. qis dua qhov xau tam sim no
5.Resistant thiab oscillators
•Chav Kawm II-qis dua qhov tseeb thiab kev ruaj khov sib raug zoo rau chav kawm-I capacitors
1. ua haujlwm tau zoo dua li cov capacitors hauv chav kawm-I.
2. kev hloov pauv nrog qhov hluav taws xob biasing
3. Cov khoom siv ua yeeb yaj kiab
♦ Hauv cov zaj duab xis capacitors no, cov yas zaj duab xis yog siv ua cov khoom siv dielectric. Muaj ntau hom xws li polyester poly propylene, polystyrene. Nws muaj kev ruaj khov siab thiab kev ntseeg siab zoo nws qhov ntsuas hluav taws xob yog IOU txog 10 KV cov no muaj nyob rau hauv qhov ntau ntawm PF thiab MF.
4. Lub tshuab hluav taws xob loj
♦ Nws tseem hu ua ultra capacitor lawv khaws cia ntau ntawm cov nqi. Qhov ntau ntawm capacitance sib txawv ntawm ob peb farads mus rau 100 farads qhov ntsuas voltage yog ntawm 2.5 txog 2.9
5. Lub tshuab hluav taws xob mica
♦ Cov no yog qhov tseeb thiab muab kev ruaj khov zoo. Lawv siv rau hauv RF daim ntawv thov thiab cov ntawv thov hluav taws xob siab. Lawv kim heev uas yog qhov no hloov los ntawm lwm lub capacitor
6. Lub capacitor hloov pauv tau
♦ Nws tseem hu ua trimmer capacitor lawv siv rau kev kho cov khoom siv lossis kev tsim khoom lossis kev pabcuam. Nws yog qhov ua tau los hloov qhov ntau thiab tsawg. Muaj ob hom trimmer capacitor.
♦ Lub capacitor ua los ntawm cov khoom siv ceramic thiab cua.
♦ Tus capacitor tsawg kawg nkaus yog nyob ib ncig ntawm 0.5 PF, tab sis nws tuaj yeem hloov pauv mus txog 100PF.
Cov capacitors no muaj rau qhov ntsuas voltage txog li 300v cov capacitors no siv rau hauv RF daim ntawv thov oscillators thiab tuning circuits.
Lub sijhawm tshaj tawm: Lub Ib Hlis-05-2026