Ke engMotlakase oa Snubber?

Litsamaisong tsa motlakase le tsa elektroniki tsa sejoale-joale, lisebelisoa tsa ho fetola tse kang li-transistors, li-thyristors (SCR), li-IGBT, le li-relay li bapala karolo ea bohlokoa. Leha ho le joalo, lisebelisoa tsena hangata li tobana le ho phahama ha motlakase le liphetoho tsa hona joale tse potlakileng ka lebaka la meroalo e inductive, e ka lebisang tšenyo, ho se sebetse hantle, le tšitiso e sa batleheng ea motlakase (EMI). Mona ke mooli-capacitor tse se nang thusokena tšebetsong.

Ho utloisisa Snubber Capacitors

A capacitor ea snubberke capacitor e khethehileng e sebelisoang lipotolohong tsa snubber ho sireletsa lisebelisoa tsa ho fetola motlakase ho tsoa ho li-spikes tsa motlakase le maqhubu a nakoana. Ka ho fana ka tsela e 'ngoe ea nakoana bakeng sa motlakase, li-capacitor tsa snubber li thusa ho fokotsa khatello ea maikutlo likarolong tsa ho fetola motlakase, ho eketsa nako ea tsona ea bophelo, le ho ntlafatsa botšepehi ba potoloho.

Ke Hobane'ng ha ho Hlokahala Lipotoloho tsa Snubber?

Lipotoloho tsa Snubber li sebelisoa lits'ebetsong tse fapaneng, ho kenyeletsoa:

• Lipotoloho tsa phepelo ea motlakase– ho thibela ho phahama ha motlakase.
• Lipotoloho tsa relay le contactor– ho fokotsa sebopeho sa arc ho pholletsa le maqhama.
• Li-switch tsa semiconductor (SCR, IGBT, GTO, jj.)– ho fokotsa ho phahama ha motlakase (dV/dt) le ho phahama ha motlakase (di/dt), ho thibela ho qholotsa ha bohata le ho hloleha ha sesebediswa.

Lipotoloho tsa Snubber li Sebetsa Joang?

Dipotoloho tsa Snubber hangata di na le capacitor kapaMarangrang a resistor-capacitor (RC)e beoa holim'a sesebelisoa sa ho chencha.

• Khatello ea Motlakase oa Motlakase:Ha SCR kapa transistor e tima, mojaro o inductive o hlahisa ho phahama ha motlakase o phahameng. Capacitor e snubber e monya matla ana, e thibela khatello e feteletseng ea motlakase.
• Taolo ea dV/dt:Capacitor e liehisa sekhahla sa ho nyoloha ha motlakase ho pholletsa le switch, e qoba ho buloa ho sa reroang (ho qholotsa ha bohata) ho thyristors le li-semiconductor tse ling.
• Taolo ea di/dt:Ho eketsa resistor ka tatellano ka capacitor ho fokotsa phallo ya motlakase ha switch e buleha, ho thibela kgatello e feteletseng hodima karolo.

Litšobotsi tsa Bohlokoa tsa Snubber Capacitors

Li-capacitor tsa Snubber li etselitsoe ho sebetsana le maqhubu a maqhubu a phahameng le li-pulse tse pheta-phetoang. Litšobotsi tsa tsona tsa bohlokoa li kenyelletsa:

• Maqhubu a phahameng a sebetsang a lumelletsoeng (100 kHz kapa ho feta).
• Ho iphuthumatsa ho tlase le tahlehelo e tlase.
• Khanyetso e tlase ea letoto la litekanyo tse lekanang (ESR) bakeng sa ho monya matla ka katleho.
• Matla a phahameng a hona joale le matla a ho sebetsana le meroalo ea nakoana.

Mefuta ea Li-Capacitors tsa Snubber

Li-capacitor tsa Snubber li tla ka mefuta e fapaneng ho latela maemo a matla le litlhoko tsa ts'ebeliso:

• Li-capacitor tsa Ceramic– E loketse lits'ebetso tse nang le matla a tlase.
• Li-capacitor tsa Filimi ea Plastiki– E sebelisoa lipotolohong tse nang le matla a maholo, ho kenyeletsoa le litsamaiso tsa likoloi tsa motlakase (EV) le litsamaiso tsa taolo ea enjene.
• Li-capacitor tsa Polypropylene (MPP) tse entsoeng ka tšepe– E etselitsoe lits'ebetso tse nang le maqhubu a phahameng, tse nang le motlakase o phahameng tse nang le inductance e tlase.

Ho Khetha Capacitor e Nepahetseng ea Snubber

Khetho ea capacitor ea snubber e itšetlehile ka lintlha tse kang:

• Boleng ba bokhoni:Hangata e tloha ho0.1µF ho isa ho 10µF, ho itshetlehile ka sesebediswa sa ho fetola le ho kenya mojaro.
• Tekanyetso ea motlakase:E lokela ho ba hodimo ho feta motlakase o phahameng wa potoloho.
• ESR le tekanyo ea hona joale:E lokela ho ba tlase ho lekana ho sebetsana le maqhubu a metsi ntle le ho futhumatsa haholo.

Li-capacitor tsa Snubber li Sebelisoa Hokae?

Li-capacitor tsa snubber li fumanoa liindastering le lits'ebetsong tse fapaneng, tse kang:

• Diyuniti tsa phepelo ea motlakase (li-PSU)
• Likoloi tsa motlakase (li-EV) le lipotoloho tsa taolo ea enjene
• Mekhoa ea othomathike ea indasteri
• Mekhoa ea matla a nchafatsoang (li-inverter tsa letsatsi, li-turbine tsa moea)

Qetello

Li-capacitor tsa snubber li bapala karolo ea bohlokoa ho sireletseng lisebelisoa tsa ho fetola motlakase ho tloha ho li-spikes tsa motlakase, ho laola maqhubu a nakoana, le ho ntlafatsa ts'ebetso ea potoloho ka kakaretso. Ha lisebelisoa tsa motlakase tsa motlakase li ntse li tsoela pele, tlhoko ea li-capacitor tsa snubber tse sebetsang hantle le tse tšepahalang e tla tsoela pele ho hola. Ebang ke mehloling ea motlakase, boiketsetso ba indasteri, kapa likoloing tsa motlakase, li-capacitor tsena li thusa ho netefatsa ts'ebetso e boreleli le e tsitsitseng lipotolohong tse nang le matla a maholo.