Capacitors z'amashanyarazi zakozwe ku giti cyazo zikoreshwa mu miyoboro ya DC-link

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Capacitors za filime zikozwe mu byuma ni zimwe muri capacitors zikoreshwa cyane muri iki gihe mu bijyanye n'amashanyarazi, mu gihe capacitors za filime zikoresha ingufu nke zikoreshwa cyane mu gukuramo no kuyungurura.

Capacitors za filime zikoresha ingufu zikoreshwa cyane mu miyoboro ya DC-link, lasers za pulsed, X-ray flashes, na phase shifters

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Imikorere ya capacitors za filime iratandukanye cyane bitewe n'ibikoresho bya dielectric bikoreshwa ndetse n'ikoranabuhanga ry'ubwubatsi rikoreshwa. Zimwe mu dielectric za pulasitiki zikoreshwa cyane zirimo polyethylene naphthalate (PEN), polyethylene terephthalate (PET), na polypropylene (PP).

Capacitors za filime za pulasitiki zishobora gushyirwa mu byiciro byinshi birimo capacitors za filime/foil na capacitors za filime za metallized. Imiterere y'ibanze ya capacitors za filime/foil igizwe na electrodes ebyiri za filime za metallized hamwe na dielectric ya filime ya pulasitiki hagati yazo. Capacitors za filime/foil zitanga ubushobozi bwo kwirinda gushyuha cyane, ubushobozi bwo gufata pulse nyinshi, ubushobozi bwiza bwo gutwara umuriro, hamwe no kudahungabana neza. Bitandukanye na capacitors za filime/foil, capacitors za filime za metallized zikoresha filime za pulasitiki zasizwe n'icyuma nk'electrodes. Capacitors za filime za metallized zifite ingano ntoya, kandi zitanga imikorere myiza, kudahungabana neza, gutakaza ingufu nke, hamwe n'ubushobozi bwiza bwo kwivura. Capacitors zimwe na zimwe ni uruvange rwa capacitors za filime/foil na capacitors za filime za metallized kandi zifite imiterere y'ubwoko bwombi. Imiterere yo kwivura ya capacitors za filime za metallized ituma ziba nziza mu buryo butandukanye, harimo no kumara igihe kirekire no kudakora neza.

Kwivura ubwabyo hakoreshejwe capacitors za filime zikozwe mu byuma

Dielectric za pulasitiki zikoreshwa cyane mu kubaka capacitors za filime zikozwe mu byuma zirimo polypropylene (PP), polyphenylene sulfide (PPS), polyester, n'impapuro za filime zikozwe mu byuma (MP). Ibi bikoresho bya dielectric bifite ubushobozi butandukanye bwo kwivura.

Iyo habayeho kwangirika muri capacitor ya filime y’icyuma, gufungana bituma urwego rwo hasi rw’icyuma rukikije aho habaye ikibazo ruhinduka umwuka. Ubu buryo bwo gusohora umwuka bukuraho urwego rw’icyuma ruyobora umwuka mu gace gakikije ikibazo. Kubera ko ibikoresho biyobora umwuka bikuweho, umurongo mugufi ntushobora kubaho hagati y’amapine. Ibi birinda ko igice cyabyo kinanirwa gukora.

Ubushobozi bwo kwivura bw'icyuma gikozwe mu cyuma gishingiye ku bintu byinshi birimo imiterere y'ibikoresho bya dielectric n'ubugari bw'urwego rw'icyuma. Uburyo bwo guhumeka bisaba ogisijeni ihagije n'ibikoresho bya dielectric bifite ogisijeni nyinshi ku buso bifite imiterere myiza yo kwivura. Zimwe mu bikoresho bya dielectric bya pulasitiki bifite imiterere myiza yo kwivura birimo polypropylene, polyester na polycarbonate. Ku rundi ruhande, dielectric za pulasitiki zifite ogisijeni nke ku buso zifite imiterere mibi yo kwivura. Polyphenylene sulfide (PPS) ni kimwe mu bikoresho bya dielectric.

Uretse kongera ubwizerwe, ubushobozi bwo kwivura bwa capacitors za filime zikozwe mu byuma bufasha kongera ubuzima bwazo bwo gukora. Ariko, kwivura ubwabyo bitera kugabanuka k'agace k'amashanyarazi kakozwe mu byuma uko igihe kigenda gihita.

Mu bikorwa, zimwe mu ngingo zishobora kwihutisha gutsindwa kw'igice kimwe harimo ubushyuhe bwinshi, voltage nyinshi, inkuba, ubushuhe bwinshi, na interference ya electromagnetic (EMI).

Uretse ubushobozi bwo kwivura, capacitors za polyester filme zifite icyuma nazo zifite dielectric constant yo hejuru, ubushyuhe bwiza, imbaraga nyinshi za dielectric, hamwe n'ubushobozi bwiza bwo gukoresha ingano y'amashanyarazi. Ibi bintu bituma izi capacitors ziba nziza mu bikorwa rusange. Capacitors za polyester zifite icyuma zikoreshwa cyane mu bikorwa bya DC nko gufunga, gufunga, gukuramo no gukumira urusaku.

Capacitors za polypropylene zifite ibyuma zitanga ubushobozi bwo kwirinda gushyuha cyane, zigatuma dielectric idakwirakwira neza, zitakaza dielectric nke, zikagira imbaraga nyinshi za dielectric, kandi zigatuma zidahindagurika igihe kirekire. Ibi bice bikoresha neza umwanya bikoreshwa cyane mu bikoresho bifatanye n'amashanyarazi nka filter circuits, ballasts z'amatara, na snubber circuits. Capacitors za polypropylene zifite ibyuma bibiri zishobora kwihanganira voltage nyinshi n'imizigo myinshi, kandi zikwiriye gukoreshwa mu buryo bushobora gutuma pulses zizamuka cyane. Izi capacitors zikoreshwa cyane mu byuma bigenzura moteri, snubbers, switch mode power supplies, na monitors.

Umwanzuro

Kwizerwa no kumara igihe cy'imikorere ya capacitors biterwa cyane n'imiterere yazo yo kwivura. Ibice bidakora bifite imiterere myiza yo kwivura birizewe cyane kandi bitanga igihe kirekire cyo gukora. Imiterere myiza yo kwivura ya capacitors za filime zikozwe mu byuma yongera imbaraga zazo kandi bigatuma zikoreshwa mu bikorwa byinshi. Byongeye kandi, ibi bice bikomeye binanirwa gukora neza, kandi ibi bituma biba byiza ku bikorwa bisaba ibice bifite uburyo bwo kwivura bwizewe.

Ku rundi ruhande, ubushobozi bwo kwivura bwa capacitors za filime zikozwe mu byuma butuma igihombo cyiyongera ndetse n'ubushobozi bwose bukagabanuka. Uretse ubushobozi bwo kwivura, capacitors nyinshi za filime zikozwe mu byuma nazo zitanga imbaraga zo kwangirika cyane ndetse n'ubushobozi bwo gukora neza cyane.

Ku bindi bisobanuro birambuye bya capacitor ya filime, nyamuneka ukuremo kataloge ya CRE.