Generation mechanism ntawm hluav taws xob static

Feem ntau, hluav taws xob zoo li qub yog tsim los ntawm kev sib txhuam los yog induction.

Frictional static hluav taws xob yog tsim los ntawm kev txav ntawm cov nqi hluav taws xob uas tsim los ntawm kev sib cuag, kev sib txhuam, lossis kev sib cais ntawm ob yam khoom. Cov hluav taws xob zoo li qub tshuav los ntawm kev sib txhuam ntawm cov conductors feem ntau kuj tsis muaj zog, vim muaj zog conductivity ntawm cov conductors. Cov ions tsim los ntawm kev sib txhuam yuav nrawm nrawm ua ke thiab nruab nrab lub sijhawm thiab thaum kawg ntawm txoj kev sib txhuam. Tom qab kev sib txhuam ntawm lub rwb thaiv tsev, qhov hluav taws xob hluav taws xob ntau dua yuav raug tsim tawm, tab sis tus nqi them tsawg heev. Qhov no yog txiav txim los ntawm lub cev qauv ntawm lub insulator nws tus kheej. Nyob rau hauv cov qauv molecular ntawm ib qho insulator, nws yog ib qho nyuaj rau electrons kom txav mus los ntawm kev sib txuas ntawm cov atomic nucleus, yog li kev sib txhuam ua rau tsuas yog me me ntawm molecular lossis atomic ionization.

Inductive static hluav taws xob yog ib qho hluav taws xob uas tsim los ntawm kev txav ntawm electrons nyob rau hauv ib qho khoom nyob rau hauv qhov kev txiav txim ntawm electromagnetic teb thaum cov khoom nyob rau hauv ib qho hluav taws xob teb. Inductive static hluav taws xob feem ntau tsuas yog tsim los ntawm cov khoom siv hluav taws xob. Cov nyhuv ntawm spatial electromagnetic teb ntawm insulators tuaj yeem tsis quav ntsej.

Electrostatic tawm mechanism

Dab tsi yog vim li cas vim li cas 220V lub zog hluav taws xob tuaj yeem tua tib neeg, tab sis ntau txhiab volts ntawm tib neeg tsis tuaj yeem tua lawv? Qhov voltage hla lub capacitor ua tau raws li cov qauv hauv qab no: U = Q / C. Raws li cov qauv no, thaum lub capacitance me me thiab tus nqi ntawm cov nqi me me, lub siab voltage yuav raug generated. "Feem ntau, lub peev xwm ntawm peb lub cev thiab cov khoom nyob ib puag ncig peb tsawg heev. Thaum cov nqi hluav taws xob tsim tawm, me me ntawm cov nqi hluav taws xob kuj tuaj yeem tsim hluav taws xob siab. " Vim yog qhov me me ntawm cov nqi hluav taws xob, thaum tso tawm, cov khoom tsim tawm tam sim no me me, thiab lub sijhawm luv heev. Qhov voltage tsis tuaj yeem tswj tau, thiab tam sim no poob rau hauv lub sijhawm luv luv. "Vim tias tib neeg lub cev tsis yog ib qho insulator, cov nqi hluav taws xob zoo li qub tau sau thoob plaws hauv lub cev, thaum muaj txoj hauv kev tawm, yuav sib sau ua ke. Yog li ntawd, nws zoo li qhov tam sim no siab dua thiab muaj kev nkag siab ntawm hluav taws xob poob siab. " Tom qab hluav taws xob zoo li qub tau tsim nyob rau hauv cov khoom siv xws li tib neeg lub cev thiab cov khoom siv hlau, cov paug tawm tam sim no yuav loj heev.

Rau cov ntaub ntawv uas muaj cov rwb thaiv tsev zoo, ib qho yog tias tus nqi hluav taws xob tsim tawm tsawg heev, thiab lwm qhov yog tias cov hluav taws xob tsim hluav taws xob tsis yooj yim ntws. Txawm hais tias qhov hluav taws xob siab, thaum muaj kev tawm mus rau qhov chaw, tsuas yog tus nqi ntawm qhov chaw sib cuag thiab nyob rau hauv ib qho me me nyob ze tuaj yeem ntws thiab tawm, thaum tus nqi ntawm qhov tsis sib cuag tsis tuaj yeem tawm. Yog li ntawd, txawm tias muaj qhov hluav taws xob ntawm kaum tawm txhiab volts, lub zog tso tawm kuj tseem tsis txaus ntseeg.

Kev phom sij ntawm hluav taws xob zoo li qub rau cov khoom siv hluav taws xob

Cov hluav taws xob zoo li qub tuaj yeem tsim teeb meem rauLEDs, tsis yog LED lub cim "patent", tab sis kuj tseem siv diodes thiab transistors ua los ntawm cov ntaub ntawv silicon. Txawm lub tsev, ntoo, thiab tsiaj txhu tuaj yeem raug hluav taws xob zoo li qub (xws li xob laim yog ib hom hluav taws xob zoo li qub, thiab peb yuav tsis xav txog qhov no).

Yog li, hluav taws xob zoo li qub ua rau cov khoom siv hluav taws xob puas tsuaj li cas? Kuv tsis xav mus deb dhau, tsuas yog tham txog cov khoom siv semiconductor, tab sis kuj txwv rau diodes, transistors, ICs, thiab LEDs.

Kev puas tsuaj los ntawm hluav taws xob rau cov khoom siv semiconductor thaum kawg suav nrog tam sim no. Nyob rau hauv qhov kev txiav txim ntawm hluav taws xob tam sim no, cov cuab yeej puas vim yog cua sov. Yog tias muaj qhov tam sim no, yuav tsum muaj qhov voltage. Txawm li cas los xij, semiconductor diodes muaj PN junctions, uas muaj qhov sib txawv voltage uas thaiv tam sim no ob qho tib si rau pem hauv ntej thiab rov qab cov lus qhia. Lub peev xwm rau pem hauv ntej yog qhov tsawg, thaum qhov rov qab muaj peev xwm thaiv tau ntau dua. Nyob rau hauv ib lub voj voog, qhov twg qhov tsis kam yog siab, qhov voltage yog concentrated. Tab sis rau LEDs, thaum lub voltage yog thov rau pem hauv ntej mus rau lub LED, thaum lub sab nraud voltage yog tsawg tshaj li qhov pib voltage ntawm lub diode (suav nrog rau cov khoom band sib txawv), tsis muaj tam sim no rau pem hauv ntej, thiab cov voltage yog tag nrho cov siv rau. PN kev sib tshuam. Thaum qhov hluav taws xob tau siv rau LED rov qab, thaum qhov hluav taws xob sab nraud tsawg dua li qhov rov qab tawg hluav taws xob ntawm LED, qhov hluav taws xob kuj tseem siv rau PN kev sib tshuam nkaus. Nyob rau lub sijhawm no, tsis muaj qhov hluav taws xob poob rau hauv qhov tsis zoo ntawm qhov sib txuas ntawm LED, lub bracket, P cheeb tsam, lossis N cheeb tsam! Vim tsis muaj tam sim no. Tom qab qhov kev sib tshuam PN tau tawg lawm, cov hluav taws xob sab nraud tau sib koom los ntawm tag nrho cov resistors ntawm lub voj voog. Qhov twg qhov tsis kam yog siab, qhov voltage uas los ntawm ib feem yog siab. Raws li deb li LEDs muaj kev txhawj xeeb, nws yog qhov tseeb tias PN hlws ris bears feem ntau ntawm qhov hluav taws xob. Lub zog hluav taws xob tsim tawm ntawm PN kev sib tshuam yog qhov hluav taws xob poob thoob plaws nws muab faib los ntawm tus nqi tam sim no. Yog tias tus nqi tam sim no tsis txwv, cov cua kub ntau dhau yuav hlawv tawm ntawm PN kev sib tshuam, uas yuav poob nws txoj haujlwm thiab nkag mus.

Vim li cas ICs kuj ntshai ntawm hluav taws xob zoo li qub? Vim tias thaj tsam ntawm txhua qhov hauv IC yog qhov tsawg heev, cov kab mob parasitic capacitance ntawm txhua yam kuj tseem me me (feem ntau qhov kev ua haujlwm hauv Circuit Court yuav tsum muaj cov kab mob me me heev). Yog li ntawd, ib qho me me ntawm cov nqi hluav taws xob electrostatic yuav tsim kom muaj hluav taws xob hluav taws xob siab, thiab lub zog kam rau ntawm txhua qhov feem ntau me me, yog li electrostatic paug tuaj yeem ua rau IC yooj yim puas. Txawm li cas los xij, cov khoom sib cais zoo tib yam, xws li cov khoom siv hluav taws xob me me thiab cov hluav taws xob me me, tsis ntshai ntawm hluav taws xob zoo li qub, vim tias lawv qhov chaw nti yog qhov loj thiab lawv cov kab mob cab kuj loj heev, thiab nws tsis yooj yim rau cov khoom siv hluav taws xob ntau. lawv nyob rau hauv cov chaw zoo li qub. Lub zog qis MOS transistors muaj feem cuam tshuam rau electrostatic kev puas tsuaj vim lawv cov rooj vag oxide nyias thiab cov kab mob me me. Lawv feem ntau tawm hauv lub Hoobkas tom qab luv luv-circuiting peb electrodes tom qab ntim. Hauv kev siv, nws yog feem ntau yuav tsum tau tshem tawm txoj kev luv luv tom qab vuam tiav. Vim yog thaj tsam loj ntawm lub zog MOS transistors, hluav taws xob zoo li qub yuav tsis ua rau lawv puas tsuaj. Yog li koj yuav pom tias peb lub electrodes ntawm lub zog MOS transistors tsis muaj kev tiv thaiv los ntawm luv luv Circuit Court (thaum ntxov manufacturers tseem luv luv circuited lawv ua ntej tawm hauv lub Hoobkas).

Ib qho LED tiag tiag muaj lub diode, thiab nws thaj chaw loj heev txheeb ze rau txhua yam hauv IC. Yog li ntawd, parasitic capacitance ntawm LEDs kuj loj. Yog li ntawd, hluav taws xob zoo li qub nyob rau hauv cov xwm txheej tsis tuaj yeem ua rau LEDs puas.

Electrostatic hluav taws xob nyob rau hauv cov xwm txheej feem ntau, tshwj xeeb tshaj yog nyob rau hauv insulators, muaj peev xwm muaj ib tug high voltage, tab sis tus nqi ntawm cov paug paug yog tsawg heev, thiab lub sij hawm ntawm qhov paug tam sim no yog luv heev. Qhov hluav taws xob ntawm cov hluav taws xob hluav taws xob uas raug cuam tshuam rau ntawm tus neeg xyuas pib yuav tsis siab heev, tab sis cov paug tawm tam sim no yuav loj thiab feem ntau tas mus li. Qhov no muaj teeb meem heev rau cov khoom siv hluav taws xob.

Vim li cas hluav taws xob static puasLED chipstsis feem ntau tshwm sim

Cia peb pib nrog ib qho kev sim tshwm sim. Lub phaj hlau hlau nqa 500V hluav taws xob zoo li qub. Muab cov LED tso rau ntawm lub phaj hlau (ua tib zoo saib rau txoj kev tso kawm kom tsis txhob muaj teeb meem hauv qab no). Koj puas xav tias LED yuav puas? Ntawm no, txhawm rau ua kom puas lub LED, feem ntau nws yuav tsum tau siv nrog qhov hluav taws xob ntau dua li nws qhov hluav taws xob tawg, uas txhais tau hais tias ob qho tib si electrodes ntawm LED yuav tsum sib cuag nrog lub phaj hlau thiab muaj qhov hluav taws xob ntau dua li qhov hluav taws xob tawg. Raws li cov hlau phaj yog ib tug zoo conductor, qhov induced voltage thoob plaws nws yog sib npaug, thiab lub thiaj li hu ua 500V voltage yog txheeb ze rau hauv av. Yog li ntawd, tsis muaj qhov hluav taws xob nruab nrab ntawm ob lub electrodes ntawm LED, thiab ib txwm yuav tsis muaj kev puas tsuaj. Tshwj tsis yog tias koj hu rau ib qho hluav taws xob ntawm LED nrog lub phaj hlau, thiab txuas rau lwm lub electrode nrog tus neeg xyuas pib (tes lossis xaim tsis muaj hnab looj tes insulating) rau hauv av lossis lwm yam khoom siv.

Qhov kev sim saum toj no ua rau peb nco ntsoov tias thaum lub LED nyob rau hauv ib qho chaw electrostatic, ib lub electrode yuav tsum hu rau lub electrostatic lub cev, thiab lwm yam electrode yuav tsum hu rau hauv av los yog lwm yam conductors ua ntej nws yuav puas. Hauv kev tsim khoom thiab kev siv tiag tiag, nrog rau qhov me me ntawm LEDs, tsis tshua muaj lub caij nyoog uas tej yam zoo li no yuav tshwm sim, tshwj xeeb tshaj yog hauv cov khoom siv. Muaj xwm txheej tshwm sim tau. Piv txwv li, lub LED yog nyob rau hauv lub cev electrostatic, thiab ib tug electrode hu rau lub electrostatic lub cev, thaum lwm yam electrode tsuas yog raug tshem tawm. Thaum lub sij hawm no, ib tug neeg kov cov hluav taws xob tshem tawm, uas yuav ua rau puasLED Teeb.

Qhov tshwm sim saum toj no qhia peb tias cov teeb meem electrostatic tsis tuaj yeem tsis quav ntsej. Electrostatic tso tawm yuav tsum muaj qhov hluav taws xob hluav taws xob, thiab tsis muaj kev puas tsuaj yog tias muaj hluav taws xob zoo li qub. Thaum tsuas yog ib qho me me ntawm cov xau tshwm sim, qhov teeb meem ntawm kev puas tsuaj electrostatic tuaj yeem raug txiav txim siab. Yog tias nws tshwm sim hauv ntau qhov ntau, nws yuav muaj teeb meem ntawm cov kab mob nti lossis kev ntxhov siab.