Qhov tseem ceeb sib txawv thiab daim ntawv thov
Rectifiers yog cov khoom tseem ceeb hauv ntau yam hluav taws xob hluav taws xob thiab cov tshuab hluav taws xob. Lawv hloov pauv tam sim no (AC) mus rau tam sim no ncaj qha (DC), muab lub zog tsim nyog rau ntau yam khoom siv thiab kev siv. Ntawm ntau hom rectifiers, pulse rectifiers thiab polarity reverse rectifiers yog qhov tseem ceeb rau lawv cov yam ntxwv thiab kev siv. Kab lus no qhia txog qhov sib txawv ntawm ob hom rectifiers, lawv cov qauv kev ua haujlwm, qhov zoo, qhov tsis zoo, thiab kev siv.
Pulse Rectifiers
Pulse rectifiers, tseem hu ua pulse rectifiers lossis tswj rectifiers, yog cov khoom siv uas hloov AC rau DC los ntawm kev siv cov khoom siv hluav taws xob zoo li thyristors lossis silicon-tswj rectifiers (SCRs). Cov rectifiers no feem ntau siv rau hauv daim ntawv thov uas xav tau kev tswj xyuas meej ntawm qhov tso zis voltage thiab tam sim no.
Txoj Cai Ua Haujlwm
Kev khiav hauj lwm ntawm lub pulse rectifier yuav tsum tswj cov theem kaum ntawm lub input AC voltage. Los ntawm kev kho lub kaum sab xis ntawm SCRs, cov zis DC voltage tuaj yeem tswj tau. Thaum SCR tshwm sim, nws tso cai rau tam sim no hla mus txog thaum lub voj voog AC mus txog xoom, thaum lub sijhawm SCR tua. Cov txheej txheem no rov ua dua rau txhua qhov ib nrab-lub voj voog ntawm AC cov tswv yim, ua rau cov zis DC pulsating.
Qhov zoo
Precise Control: Pulse rectifiers muab kev tswj zoo tshaj plaws ntawm cov zis voltage thiab tam sim no, ua rau lawv zoo tagnrho rau cov ntawv thov uas yuav tsum tau kho DC tso zis.
High Efficiency: Cov rectifiers no muaj txiaj ntsig zoo, vim tias lawv txo qis zog poob thaum hloov pauv.
Flexibility: Pulse rectifiers tuaj yeem tswj cov khoom sib txawv thiab haum rau ntau hom AC inputs.
Qhov tsis zoo
Complexity: Lub circuitry ntawm pulse rectifiers yog complex dua li ntawm cov rectifiers yooj yim, yuav tsum tau ntxiv cov khoom rau triggering thiab tswj.
Tus nqi: Vim yog kev siv cov khoom siv hluav taws xob tswj hwm thiab cov tswj hluav taws xob ntxiv, cov pulse rectifiers feem ntau kim dua.
Daim ntawv thov
Pulse rectifiers tau dav siv hauv kev lag luam, suav nrog:
1.Variable Speed Drives: Rau kev tswj qhov ceev ntawm AC motors.
2.Cov Khoom Siv Hluav Taws Xob: Hauv cov khoom siv hluav taws xob tswj hwm rau cov khoom siv hluav taws xob.
3.Vuam: Hauv cov khoom siv vuam qhov kev tswj xyuas cov zis tam sim no yog qhov tseem ceeb.
4.HVDC kis tau tus mob: Nyob rau hauv high-voltage direct tam sim no (HVDC) kis tau tus mob systems kom npaum
Polarity Rov qab Rectifiers
Polarity rov qab rectifiers, tseem hu ua thim rov qab polarity tiv thaiv rectifiers lossis rov qab voltage tiv thaiv rectifiers, yog tsim los tiv thaiv circuits los ntawm kev puas tsuaj los ntawm kev sib txuas polarity tsis raug. Lawv xyuas kom meej tias lub Circuit Court ua haujlwm kom raug txawm tias lub hwj huam mov lub polarity yog thim rov qab.
Txoj Cai Ua Haujlwm
Lub ntsiab tseem ceeb ntawm lub polarity rov qab rectifier yog diode los yog kev sib xyaw ntawm diodes. Thaum txuas nrog cov khoom siv hluav taws xob, lub diode tso cai rau tam sim no tsuas yog nyob rau hauv qhov tseeb. Yog tias qhov polarity thim rov qab, lub diode thaiv qhov tam sim no, tiv thaiv kev puas tsuaj rau lub voj voog.
Hauv kev tsim ntau tshaj plaws, MOSFETs (hlau-oxide-semiconductor teb-tshuaj cuam tshuam transistors) yog siv los muab kev poob qis rau pem hauv ntej thiab ua haujlwm zoo dua piv rau diodes. Cov MOSFET-raws li rectifiers tau hloov kho kom raug polarity thiab xyuas kom muaj kev ua haujlwm zoo ntawm lub voj voog.
Qhov zoo
Kev tiv thaiv Circuit Court: Polarity rov qab rectifiers zoo tiv thaiv cov khoom siv hluav taws xob tsis zoo los ntawm kev puas tsuaj vim kev sib txuas tsis raug polarity.
Simplicity: Cov qauv tsim yog qhov yooj yim thiab tuaj yeem yooj yim sib xyaw rau hauv cov kab hluav taws xob uas twb muaj lawm.
Nqi-zoo: Diode-raws li polarity rov qab rectifiers yog pheej yig thiab yooj yim muaj.
Qhov tsis zoo
Voltage Drop: Diode-based rectifiers qhia txog kev poob qis rau pem hauv ntej, uas tuaj yeem txo qhov kev ua tau zoo ntawm lub voj voog.
Kev Tswj Txwv: Cov rectifiers no tsis muab kev tswj hwm ntawm qhov tso zis hluav taws xob lossis tam sim no, vim tias lawv txoj haujlwm tseem ceeb yog kev tiv thaiv.
Daim ntawv thov
Polarity rov qab rectifiers yog siv nyob rau hauv ntau yam kev siv uas kev tiv thaiv tawm tsam rov qab polarity yog qhov tseem ceeb, suav nrog:
1.Consumer Electronics: Hauv cov khoom siv xws li smartphones, laptops, thiab lwm yam khoom siv hluav taws xob uas siv tau los tiv thaiv kev puas tsuaj los ntawm cov khoom siv hluav taws xob tsis raug.
2.Automotive: Nyob rau hauv automotive electronics los tiv thaiv circuits ntawm rov qab roj teeb kev sib txuas.
3.Solar Power Systems: Txhawm rau kom muaj kev ua haujlwm zoo ntawm lub hnub ci vaj huam sib luag thiab tiv thaiv kev puas tsuaj los ntawm kev rov qab polarity.
4.Roj teeb Chargers: Txhawm rau tiv thaiv cov khoom siv hluav taws xob los ntawm kev sib txuas ntawm roj teeb tsis raug.
Qhov txawv tseem ceeb
Qhov txawv tseem ceeb
Thaum ob qho tib si pulse rectifiers thiab polarity rov qab rectifiers ua lub luag haujlwm tseem ceeb hauv cov tshuab hluav taws xob, lawv cov dej num thiab kev siv sib txawv heev.
Muaj nuj nqi: Pulse rectifiers tsom rau kev hloov AC rau DC nrog kev tswj xyuas meej ntawm cov zis, whereas polarity thim rov qab rectifiers yog tsim los tiv thaiv circuits los ntawm kev puas tsuaj vim tsis raug polarity kev sib txuas.
Cheebtsam: Pulse rectifiers siv tswj cov khoom siv semiconductor zoo li SCRs, thaum polarity rov qab rectifiers feem ntau siv diodes lossis MOSFETs.
Complexity: Pulse rectifiers yog qhov nyuaj dua thiab xav tau kev tswj xyuas hluav taws xob ntxiv, hos polarity thim rov qab rectifiers muaj tus qauv yooj yim dua.
Daim ntaub ntawv: Pulse rectifiers yog siv rau hauv kev lag luam thiab kev siv hluav taws xob siab, thaum polarity reverse rectifiers feem ntau pom muaj nyob rau hauv cov khoom siv hluav taws xob, tsheb, thiab hnub ci zog.
Xaus
Pulse rectifiers thiab polarity reverse rectifiers yog cov khoom tseem ceeb hauv cov tshuab hluav taws xob niaj hnub no, txhua qhov ua haujlwm sib txawv. Pulse rectifiers muab kev tswj hwm thiab kev ua haujlwm hauv AC rau DC hloov dua siab tshiab, ua rau lawv tsim nyog rau kev lag luam. Hauv qhov sib piv, polarity thim rov qab rectifiers muab kev tiv thaiv tseem ceeb tiv thaiv kev sib txuas tsis raug polarity, ua kom muaj kev nyab xeeb thiab kev ntseeg siab ntawm ntau yam khoom siv hluav taws xob thiab tshuab. Kev nkag siab txog qhov sib txawv ntawm cov rectifiers no pab xaiv cov khoom tsim nyog rau cov ntawv thov tshwj xeeb, thaum kawg txhim kho kev ua tau zoo thiab kev ua haujlwm ntev ntawm cov hluav taws xob circuits.
Post lub sij hawm: Jul-03-2024
