TRR: Lub luag haujlwm ntawm diodes hauv kev tiv thaiv hluav taws xob

Cov yam ntxwv tseem ceeb ntawm diodes
Nws yog ib qho khoom siv semiconductor nrog unidirectional conductivity, uas tsuas yog tso cai rau tam sim no los ntawm anode (zoo electrode) mus rau cathode (tsis zoo electrode), thiab yuav luag tsis yog-conductive nyob rau hauv lub rov qab kev taw qhia. Raws li lawv cov ntaub ntawv thiab cov qauv, lawv tuaj yeem muab faib ua cov diodes zoo tib yam, Schottky diodes, Zener diodes, thiab diodes rov qab sai.

Ordinary diode
Feem ntau siv nyob rau hauv rectifier circuits los hloov alternating tam sim no mus rau tam sim no ncaj qha. Lawv muaj kev poob siab rau pem hauv ntej thiab qeeb rov qab lub sijhawm.

Schottky diode
Nws muaj qhov tsis tshua muaj hluav taws xob poob rau pem hauv ntej thiab ceev rov qab cov yam ntxwv, haum rau cov ntawv thov high-frequency thiab low-voltage circuits.

Zener diode
Nws tuaj yeem txhim kho qhov hluav taws xob nyob rau hauv qhov hluav taws xob thim rov qab, yog li nws feem ntau siv rau hauv qhov hluav taws xob stabilization circuits.

Fast rov qab diode
Nws muaj lub sij hawm rov qab luv dua thiab tsim nyog rau circuits uas yuav tsum tau hloov ceev.

Lub luag haujlwm ntawm diodes hauv kev tiv thaiv Circuit Court
Anti rov qab kev twb kev txuas tiv thaiv
Nws yog ib qho ntawm cov kev siv ntau tshaj plaws ntawm diodes hauv kev tiv thaiv hluav taws xob. Hauv cov khoom siv hluav taws xob, yog tias kev sib txuas hluav taws xob rov qab, nws yuav ua rau lub cuab yeej puas. Los ntawm kev sib txuas lub diode hauv series los yog sib npaug ntawm lub hwj chim input kawg, nws tuaj yeem tiv thaiv kev puas tsuaj rau lub voj voog uas tshwm sim los ntawm kev rov qab fais fab mov.

Daim ntawv thov Case:
Hauv kev them nqi hluav taws xob ntawm lub xov tooj ntawm tes, Schottky diode feem ntau txuas nrog nyob rau tib lub sijhawm ntawm lub zog hluav taws xob nkag. Thaum lub hwj chim txuas nrog qhov tseeb, lub diode tsis ua haujlwm thiab lub voj voog ua haujlwm ib txwm; Thaum cov khoom siv hluav taws xob txuas rau hauv qhov tsis ncaj ncees lawm, lub diode ua haujlwm, tsim ib qho luv luv-circuit tiv thaiv Circuit Court tiv thaiv kev puas tsuaj rau Circuit Court vim rov qab fais fab mov.

Kev tiv thaiv overvoltage
Nws yog ib qho kev tiv thaiv kev tiv thaiv kom tsis txhob muaj qhov hluav taws xob hauv Circuit Court kom dhau qhov kev tsim ntau yam. Zener diodes feem ntau siv rau hauv cov ntawv thov no. Zener diodes coj nyob rau hauv qhov rov qab tawg voltage, uas tuaj yeem txwv tsis pub dhau qhov hluav taws xob nyob rau hauv qhov chaw nyab xeeb thiab tiv thaiv kab mob tom ntej.

Daim ntawv thov Case:
Nyob rau hauv lub hwj chim adapters, los tiv thaiv rhiab hluav taws xob Cheebtsam, ib tug Zener diode yog feem ntau txuas nyob rau hauv parallel ntawm lub hwj chim tso zis kawg. Thaum cov zis hluav taws xob ntau tshaj qhov tawg ntawm qhov hluav taws xob ntawm Zener diode, Zener diode ua haujlwm, hloov qhov hluav taws xob ntau dhau thiab tiv thaiv cov hluav taws xob tom ntej los ntawm kev cuam tshuam hluav taws xob siab.

Kev tiv thaiv overcurrent
Nws yog ib qho kev tiv thaiv kev tiv thaiv kom tsis txhob muaj qhov tam sim no hauv Circuit Court kom dhau qhov kev nyab xeeb. Txawm hais tias fuses thiab thermistor yog cov khoom tiv thaiv overcurrent, diodes kuj tuaj yeem siv rau kev tiv thaiv overcurrent hauv qee cov ntawv tshwj xeeb.

Daim ntawv thov Case:
Hauv qee cov khoom siv hluav taws xob hloov hluav taws xob ntau zaus, txhawm rau tiv thaiv qhov hloov pauv siab tam sim no tsim los ntawm cov khoom siv hluav taws xob thaum hloov pauv los ntawm kev puas tsuaj rau lub voj voog, lub diode rov qab sai yog feem ntau txuas nrog rau qhov sib npaug ntawm ob qho kawg ntawm inductance. Thaum lub sijhawm hloov pauv siab tam sim no, lub diode ua haujlwm, hloov pauv tam sim no thiab tiv thaiv cov inductor thiab cov khoom txuas ntxiv.

Kev tiv thaiv zoo li qub
ESD yog ib qho teeb meem tshwm sim hauv cov khoom siv hluav taws xob uas yuav ua rau muaj kev puas tsuaj mus tas li rau cov khoom siv hluav taws xob tsis zoo. Txhawm rau tiv thaiv hluav taws xob zoo li qub los ntawm kev puas tsuaj rau hauv Circuit Court, static tiv thaiv diodes feem ntau yog ntxiv rau hauv Circuit Court.

Daim ntawv thov Case:
Hauv computer interface circuits, xws li USB thiab HDMI interfaces, txhawm rau tiv thaiv hluav taws xob zoo li qub los ntawm kev nkag mus rau hauv Circuit Court los ntawm kev sib txuas, cov diodes tiv thaiv zoo li qub feem ntau txuas nrog tib lub sijhawm ntawm cov chaw nres nkoj interface. Cov diodes no muaj cov lus teb ceev ceev thiab cov yam ntxwv tsis tshua muaj peev xwm, uas tuaj yeem coj cov hluav taws xob hluav taws xob zoo rau hauv av thiab tiv thaiv cov hluav taws xob sab hauv los ntawm kev cuam tshuam electrostatic.

Daim ntawv thov tshwj xeeb cov ntaub ntawv tsom xam
Kev siv cov diodes hauv hnub ci inverter
Nyob rau hauv lub hnub ci inverters, diodes ua lub luag haujlwm tseem ceeb tiv thaiv. Hnub ci inverters hloov cov tam sim no ncaj qha tsim los ntawm lub hnub ci vaj huam sib luag rau hauv kev hloov tam sim no rau tsev neeg lossis daim phiaj siv. Txhawm rau txhim kho kev ntseeg tau thiab kev ua haujlwm ntawm lub cev, ntau lub diodes yog siv hauv inverter rau kev tiv thaiv Circuit Court.

Anti rov qab tiv thaiv:Cov khoom siv hluav taws xob ntawm lub hnub ci vaj huam sib luag feem ntau yog txuas nrog lub Schottky diode los tiv thaiv lub vaj huam sib luag los ntawm kev thim rov qab thaum hmo ntuj lossis hnub huab cua.

Kev tiv thaiv overvoltage:Hauv DC voltage regulation circuits, Zener diode yog siv los clamp qhov voltage los tiv thaiv kev puas tsuaj rau cov circuits tom ntej los ntawm kev siv hluav taws xob ntau dhau.

Electrostatic tiv thaiv:Nyob rau hauv kev tswj Circuit Court ntawm lub inverter, electrostatic tiv thaiv diodes yog siv los tiv thaiv lub microcontroller thiab lwm yam rhiab Cheebtsam los ntawm kev puas tsuaj los ntawm electrostatic paug.

Kev siv cov diodes hauv cov chaw nres tsheb fais fab
Hluav taws xob tsheb them chaw nres tsheb yog ib qho tseem ceeb pab txhawb rau lub tsheb hluav taws xob, thiab lawv txoj kev nyab xeeb thiab kev ntseeg siab yog qhov tseem ceeb tshwj xeeb. Diodes kuj ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv hluav taws xob ntawm cov chaw them nqi.

Anti rov qab kev twb kev txuas tiv thaiv:Nyob rau ntawm lub hwj chim input kawg ntawm lub chaw them nqi, ib tug high-voltage Schottky diode yog siv los tiv thaiv lub hwj chim rov qab kev twb kev txuas thiab tiv thaiv lub internal Circuit Court ntawm lub chaw nres tsheb them.

Kev tiv thaiv overvoltage:Nyob rau hauv lub charger module ntawm lub chaw nres tsheb them, ib tug Zener diode yog siv los clamp lub voltage, tiv thaiv ntau dhau voltage los ntawm kev puas tsuaj rau lub them module thiab lub roj teeb system ntawm lub tsheb fais.

Kev tiv thaiv hluav taws xob zoo li qub:Txhim kho cov hluav taws xob zoo li qub tiv thaiv diodes ntawm qhov kev sib txuas them nyiaj los tiv thaiv kev cuam tshuam thiab kev puas tsuaj rau lub chaw nres tsheb them hluav taws xob tswj hluav taws xob los ntawm cov hluav taws xob zoo li qub tsim los ntawm cov neeg siv thaum ntsaws thiab tshem tawm cov phom them nyiaj.

https://www.trrsemicon.com/diode/smd-diode/schottky-diode-bat54c.html