Khoom taw qhia ntawm rectifier diode

Lub rectifier diode yog ib qho khoom siv semiconductor siv los hloov pauv tam sim no mus rau qhov tam sim no ncaj qha. Qhov tseem ceeb tshaj plaws yam ntxwv ntawm lub diode yog nws unidirectional conductivity. Hauv Circuit Court, tam sim no tsuas yog ntws los ntawm qhov zoo electrode ntawm lub diode thiab tawm ntawm qhov tsis zoo electrode. Nws feem ntau muaj PN kev sib tshuam nrog qhov zoo thiab qhov tsis zoo. Nws cov qauv muaj nyob rau hauv daim duab 2. Cov cab kuj nyob rau hauv cheeb tsam p yog qhov thiab cov cab kuj nyob rau hauv lub N cheeb tsam yog electrons, tsim ib tug tej yam muaj peev xwm barrier ntawm thaj av p thiab cheeb tsam N. Thaum qhov hluav taws xob siv hluav taws xob ua rau qhov hluav taws xob ntawm thaj av p zoo nrog rau thaj tsam N, qhov muaj peev xwm barrier txo qis, thiab cov nqa khoom khaws cia tau tsim nyob ze ntawm ob sab ntawm qhov muaj peev xwm barrier, uas tuaj yeem hla dhau tam sim no loj thiab muaj qhov tsis tshua muaj hluav taws xob poob ( tus nqi raug yog 0.7V), uas yog hu ua lub xeev kev coj mus rau pem hauv ntej. Yog hais tias qhov opposite voltage yog siv los ua kom muaj peev xwm barrier, nws muaj peev xwm tiv taus siab rov qab voltage thiab ntws ib tug me me rov qab tam sim no (hu ua reverse leakage tam sim no), uas yog hu ua rov qab thaiv lub xeev. Lub rectifying diode muaj pom tseeb unidirectional conductivity. Lub rectifying diode tuaj yeem ua los ntawm semiconductor germanium lossis silicon. Silicon rectifier diode muaj qhov hluav taws xob tawg siab, me me rov qab xau tam sim no thiab kev ua haujlwm kub zoo. Feem ntau, high-voltage thiab high-power rectifying diodes yog ua los ntawm high-purity monocrystalline silicon (nws yog ib qho yooj yim rau thim rov qab thaum doped ntau). Cov cuab yeej no muaj qhov sib tshuam loj thiab tuaj yeem dhau qhov tam sim no loj (txog ntau txhiab tus Amperes), tab sis nws cov zaus ua haujlwm tsis siab, feem ntau qis dua kaum tawm kHz. Rectifying diodes feem ntau yog siv nyob rau hauv ntau yam tsawg-frequency ib nrab nthwv dej rectifying circuits. Yog hais tias tag nrho yoj rectification yog yuav tsum tau, nws yuav tsum tau txuas mus rau lub rectifier choj.