A na ua tseba sesosa sa ho lutla ha hona joale liqubung tse tjhajang koloi ea motlakase?

Ho tjhaja koloi ea motlakasepile leakage current ka kakaretso e arotsoe ka mefuta e mene, e leng: semiconductor component leakage current, power leakage current, capacitor leakage current le filter leakage current.

 

1. Leakage ea hona joale ea likarolo tsa semiconductor

 

Nako e nyane haholo e phallang ka har'a mateano a PN ha e khaotsoe.DS e na le leeme la pele, GS e khelohile, 'me ka mor'a hore mocha oa conductive o buloe, hona joale ho tla phalla ho tloha D ho ea ho S. Empa ha e le hantle, ka lebaka la ho ba teng ha li-electrone tsa mahala, li-electrone tsa mahala li khomaretsoe ho SIO2 le N +, e leng se bakang ho lutla. boemo ba hona joale ba DS.

 qubu ea ho tjhaja

2. Matla a ho lutla ha motlakase

 

E le ho fokotsa tšitiso ea phepelo ea motlakase, ho latela maemo a naha, potoloho ea EMI filter e tlameha ho fanoa.Ka lebaka la kamano ea potoloho ea EMI, ho na le motlakase o monyenyane ho ea fatše ka mor'a hore motlakase oa ho fetola o hokahane le marang-rang, e leng hona joale ho lutla.Haeba e sa thehoe, khetla ea k'homphieutha e tla ba le motlakase oa 110 volts fatše, 'me e tla ikutloa e le lerootho ha u e ama ka matsoho, hape e tla ama mosebetsi oa k'homphieutha.

 

3. Capacitor leakage hona joale

 

Mochine oa capacitor o ke ke oa e-ba o se nang conductive;ha motlakase oa DC o sebelisoa ho capacitor, capacitor e tla ba le hona joale ea ho lutla.Haeba nako ea ho lutla e le khōlō haholo, capacitor e tla senyeha ke mocheso.Ntle le li-electrolytic capacitor, ho lutla ha li-capacitor tse ling ho nyane haholo, ka hona parameter ea ho hanyetsa ho ts'oaroa e sebelisoa ho emela ts'ebetso ea bona ea ho kenella, athe li-electrolytic capacitor li na le leakage e kholo ea hona joale, ka hona, hona joale ho lutla ho sebelisoa ho emela ts'ebetso ea bona ea ho kenella (ka tekano). ho bokgoni).Ha motlakase o lekantsoeng oa DC o sebelisoa ho capacitor, ho tla hlokomeloa hore phetoho ea hona joale ea ho tjhaja e qala ho ba khōlō, 'me e fokotseha ka nako.Ha e fihla boleng bo itseng ba ho qetela, e fihla boemong bo batlang bo tsitsitse.Boleng bona ba ho qetela bo bitsoa leakage current.ke=kcu(ua);moo k e leng sebaka sa ho lutla ha hajoale, yuniti ke μa(v:μf)

4. Filter leakage current

 

Nako ea ho lutla ha sefahla sa matla e hlalosoa e le: hona joale ho tloha ntlong ea filthara ho isa pheletsong efe kapa efe ea mohala o kenang oa AC tlas'a matla a AC a lekantsoeng.Haeba likou tsohle tsa filthara li insulated ka ho feletseng ho tloha matlong, boleng ba leakage hona joale haholo-holo itšetlehile ka leakage hona joale ea tloaelehileng mode capacitor CY, ke hore, e haholo-holo itšetlehile ka bokgoni ba CY.Ka lebaka la boholo ba ho lutla ha filthara, ho kenyelletsang polokeho ea motho, linaha tsohle tsa lefats'e li na le litekanyetso tse thata bakeng sa eona.Bakeng sa phepelo ea motlakase ea 220V/50Hz AC, nako e lutlang ea sefe ea lerata hangata e hlokahala hore e be ka tlase ho 1mA.

U tseba joang ka liqubu tse ncha tsa ho tjhaja likoloi?
Hobaneng ha liqubu tse ncha tsa ho tjhaja koloi ea matla li sebelisa liqubu tsa ho tjhaja ka AC?

Nako ea poso: Nov-04-2022
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