Thaum nws los txog rau cov khoom siv hluav taws xob qis, siab tam sim no thiab ultra-high-speed semiconductor, ntau tus tub ntxhais kawm yuav tsum xub xav txog Schottky diode (SBD). Tab sis koj puas tuaj yeem siv Schottky diodes tiag tiag? Piv nrog rau lwm cov diodes, dab tsi tshwj xeeb txog Schottky diodes? Cia peb kos cov ntsiab lus tseem ceeb ua ke.
Cov ntsiab lus tseem ceeb ntawm Schottky diode
Schottky diodes yog dav siv nyob rau hauv switching fais fab mov, zaus converter, tsav tsheb thiab lwm yam circuits. Hauv kev siv sib txawv, ntau yam yuav tsum tau xav txog, thiab cov khoom siv sib txawv muaj qhov sib txawv. Yog li ntawd, thaum xaiv Schottky diodes, cov nram qab no tsis tseem ceeb yuav tsum tau muab xam kom meej.
1. Ntawm voltage poob (VF)
VF yog qhov hluav taws xob poob hla lub diode thaum lub diode ua haujlwm rau pem hauv ntej. Thaum tam sim no los ntawm diode loj dua, VF loj dua; Thaum lub diode kub siab dua, VF me dua.
2. Rov qab saturated to tam sim no (IR)
IR yog hais txog qhov tam sim no ntws los ntawm diode thaum qhov rov qab voltage ntxiv ntawm ob kawg ntawm lub diode. Qhov rov qab xau tam sim no ntawm Schottky diode yog qhov loj, thiab Schottky diode raug xaiv kom deb li deb tau.
3. Rated tam sim no (yog)
Nws yog hais txog qhov nruab nrab tam sim no tus nqi hloov pauv raws li qhov tso cai kom sov siab thaum lub diode ua haujlwm ntev.
4. Qhov siab tshaj plaws tam sim no (IFSM)
Ntau dhau mus rau tam sim no tso cai rau ntws. Nws tsis yog qhov qub tam sim no, tab sis tam sim no tam sim no, uas yog qhov loj heev.
5. Qhov siab tshaj qhov rov qab ncov voltage VRM
Txawm hais tias tsis muaj qhov rov qab tam sim no, tsuav yog qhov rov qab qhov hluav taws xob tsis tu ncua, lub diode yuav raug puas tsuaj sai lossis tom qab. Qhov hluav taws xob rov qab uas tuaj yeem siv tau tsis yog qhov hluav taws xob tam sim ntawd, tab sis yog ib qho hluav taws xob rau pem hauv ntej thiab rov qab siv dua. Txij li thaum AC voltage yog siv rau lub rectifier, nws cov nqi siab tshaj plaws yog qhov tseem ceeb tshaj plaws. Qhov siab tshaj plaws rov qab ncov voltage VRM hais txog qhov siab tshaj qhov rov qab voltage uas tuaj yeem siv tau kom tsis txhob tawg. Tam sim no, tus nqi siab tshaj VRM ntawm Schottky yog 150V.
6. Qhov siab tshaj plaws DC rov qab voltage VR
Qhov siab tshaj qhov rov qab siab tshaj qhov hluav taws xob yog qhov siab tshaj qhov hluav taws xob rov ua dua, thiab VR yog tus nqi thaum DC voltage txuas ntxiv mus. Rau DC Circuit Court, qhov siab tshaj plaws DC rov qab voltage yog qhov tseem ceeb heev los txiav txim siab tus nqi tso cai thiab tus nqi qis tshaj
7. Kev khiav hauj lwm ntau zaus FM
Vim tias muaj qhov sib txuas ntawm qhov sib txuas ntawm PN kev sib tshuam, thaum qhov kev khiav hauj lwm zaus tshaj ib qho nqi, nws cov unidirectional conductivity yuav tsis zoo. Tus nqi FM ntawm Schottky diode yog siab, mus txog 100GHz.
8. Rov qab lub sij hawm rov qab TRR
Thaum qhov kev khiav hauj lwm voltage hloov los ntawm qhov hluav taws xob rau pem hauv ntej mus rau qhov hluav taws xob rov qab, qhov zoo tshaj plaws ntawm kev ua haujlwm diode yog qhov tam sim no tuaj yeem txiav tawm tam sim ntawd. Qhov tseeb, feem ntau nws yuav siv sij hawm me ntsis. Tus nqi uas txiav txim siab ncua kev txiav tawm tam sim no yog lub sijhawm rov qab los. Txawm hais tias nws cuam tshuam ncaj qha rau kev hloov ceev ntawm lub diode, nws tsis tas yuav hais tias tus nqi no me me. Ntawd yog, thaum lub diode yog dheev thim rov qab los ntawm conduction, qhov rov qab tam sim no yog attenuated los ntawm zoo mus rau ze IR. Qhov ntsuas no tseem ceeb heev thaum lub zog hloov hluav taws xob ua haujlwm nyob rau hauv lub xeev high-frequency switching.
9. Qhov siab tshaj plaws dissipation zog (P)
Yog tias muaj tam sim no ntws hauv lub diode, nws yuav nqus cua sov thiab nce nws qhov kub. Nyob rau hauv kev xyaum, sab nraud tshav kub dissipation muaj kev cuam tshuam zoo rau P. Tshwj xeeb, qhov hluav taws xob siv thoob plaws lub diode yog muab faib los ntawm cov dej ntws tam sim no thiab rov qab poob.
