1. Vim li cas cov capacitors tseem ceeb cov khoom siv rau phaw thiab boost converters?
Kev xyaum ua haujlwm zoo yuav tsum tau muab cov capacitors sab nraud tso rau ntawm qhov kev tawm tswv yim thiab tso tawm ntawm tag nrho cov regulators. Qhov no yog vim hais tias cov capacitors tsis tsuas yog pab txo qhov hluav taws xob ripple thiab txhim kho kev ntseeg tau ntawm Circuit Court, tab sis cov khoom no kuj nce kev ua tau zoo piv rau cov kab hluav taws xob. Lub zog tsim hluav taws xob tsim hluav taws xob zoo yuav siv cov khoom siv hluav taws xob sib txawv thiab cov khoom siv, xws li ceramic capacitors, aluminium capacitors thiab tantalum capacitors.
2. Qhov zoo ntawm kev siv multilayer ceramic capacitors hauv converters
Xaiv lub capacitor txoj cai rau koj lub converter yog qhov tseem ceeb hauv kev ua kom cov khoom kawg yog qhov ua tau zoo, ruaj khov thiab txhim khu kev qha raws li qhov ua tau. Hauv cov ntawv thov no, multilayer ceramic capacitors (MLCCs) muab cov txiaj ntsig tshwj xeeb vim tias lawv tuaj yeem muab cov txiaj ntsig muaj peev xwm ntau dua nrog lawv cov khoom siv ib leeg thiab ntau txheej sab hauv.
Multilayer ceramic capacitors (MLCCs) feem ntau yog siv rau hauv pob lossis txhawb cov hloov pauv rau cov haujlwm hauv qab no:
- Kev xaiv cov lim dej tawm - MLCCs tuaj yeem txuas nrog cov khoom siv txhuas electrolytic lossis polymer capacitors rau kev pom kev lim dej thaum lub zaus qis dua 1MHz; MLCCs yog cov lim dej zoo tshaj plaws thaum qhov zaus ntau dua 1MHz.
- Bypass capacitors - Tshem tawm qhov hluav taws xob poob ntawm lub zog hluav taws xob los ntawm kev khaws cia, uas tuaj yeem tso tawm thaum qhov hluav taws xob nce siab.
- Buffer capacitors - MLCCs pab txo qis ripple hauv lub network hloov.
- Output capacitor - Tsawg capacitance (<1uF) ceramic capacitors can be used when the frequency is greater than 1MHz; aluminum electrolytic capacitors can be used when the frequency is less than 1MHz.
Kev siv multilayer ceramic capacitors (MLCC) nyob rau hauv daim ntawv thov saum toj no tuaj yeem pab ua kom cov ripple tam sim no ntsuas ntawm lub converter, txhim khu kev ua haujlwm lim dej thiab txuas ntxiv kev pab cuam lub neej. MLCCs yog siv nyob rau hauv ntau yam kev siv, los ntawm yooj yim topologies mus rau complex topologies.
3. Kev txiav txim siab tshwj xeeb rau cov ntawv thov kev ntseeg siab
Rau cov ntawv thov kev ntseeg siab, xws li cov khoom siv hluav taws xob rau cov tub rog drones, yuav tsum muaj kev sim ntxiv kom tau raws li cov qauv tub rog (MIL-STDS). Thaum xaiv cov capacitors rau cov ntawv thov kev ntseeg siab, peb yuav tsum sim lawv mus rau qhov nruj tshaj plaws MIL-STD cov cai - suav nrog kev kub hnyiab hauv qhov kub thiab txias ib puag ncig - thiab ua rau lawv mus rau 100 feem pua cov hluav taws xob kuaj xyuas kom ua raws li cov qauv kev ua haujlwm nruj kom ntseeg tau tias koj cov khoom muaj kev nyab xeeb rau siv nyob rau hauv cov tub rog complex thiab aerospace daim ntaub ntawv. siv.
