Ejiri ike capacitors eme ihe nke ọma na sekit njikọ DC

Ike capacitors emere nke ọma eji na sekit njikọ DC

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Ngwakọta ihe nkiri metallized bụ ụfọdụ n'ime ngwa ndị a na-ejikarị eme ihe na sekit eletrọniki nke oge a ebe a na-ejikarị ngwa ndị nwere obere ike maka iwepụ na nzacha.

A na-ejikarị ike ihe nkiri ike eme ihe n'ọtụtụ ebe na sekit njikọ DC, laser pulsed, ọkụ X-ray, na mgbanwe usoro.

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Nkọwa Ngwaahịa

Akara Ngwaahịa

Nkọwapụta

Àgwà arụmọrụ nke ihe mkpuchi ihe nkiri dị iche iche dabere na ihe eji arụ ọrụ dielectric yana teknụzụ owuwu e ji rụọ ya. Ụfọdụ n'ime ihe mkpuchi ihe nkiri plastik a na-ejikarị eme ihe gụnyere polyethylene naphthalate (PEN), polyethylene terephthalate (PET), na polypropylene (PP).

Enwere ike kewaa capacitors fim plastik n'ụzọ sara mbara n'ime ihe mkpuchi fim/foil na ihe mkpuchi fim metallised. Nhazi bụ isi nke ihe mkpuchi fim/foil nwere elektrọd foil metal abụọ na dielectric film plastik n'etiti ha. Ihe mkpuchi fim/foil na-enye ike mkpuchi dị elu, ikike njikwa pulse dị elu, ikike ibu ọkụ dị mma, na ezigbo ike ike. N'adịghị ka capacitors fim/foil, capacitors fim metallised na-eji ihe mkpuchi plastik metallised dị ka elektrọd. Capacitors fim metallised nwere nha anụ ahụ dị ala, ma na-enye arụmọrụ volumetric dị elu, ezigbo ike ike, obere mfu dielectric, na njirimara ọgwụgwọ onwe onye dị mma. Ụfọdụ capacitors bụ ngwakọta nke ihe mkpuchi fim/foil na ihe mkpuchi fim metallised na njirimara njirimara nke ụdị abụọ ahụ. Njirimara ọgwụgwọ onwe onye nke ihe mkpuchi fim metallised na-eme ka ha dị mma maka ọtụtụ ngwa, gụnyere ogologo ndụ na sekit ọnọdụ ọdịda na-adịghị mma.

Ọgwụgwọ onwe onye nke capacitors ihe nkiri metallized

Ihe ndị a na-ejikarị emepụta ihe nkiri plastik dịka polypropylene (PP), polyphenylene sulfide (PPS), polyester, na akwụkwọ metalized (MP). Ihe ndị a dị ka dielectric nwere ike ịgwọ onwe ha dị iche iche.

Mgbe mmebi mere na ihe mkpuchi ihe nkiri metallized, arcing na-eme ka akwa ígwè dị gịrịgịrị gburugburu ebe ntụpọ ahụ gbawara agbawa. Usoro vaporization a na-ewepụ akwa ígwè conductive dị n'ógbè ahụ gbara ntụpọ ahụ gburugburu. Ebe ọ bụ na ewepụla ihe na-eduzi ihe, sekit dị mkpirikpi agaghị eme n'etiti efere ndị ahụ. Nke a na-egbochi ọdịda nke ihe mejupụtara ahụ.

Ike ịgwọ onwe onye nke ihe mkpuchi ihe nkiri metallized dabere na ọtụtụ ihe, gụnyere ihe onwunwe nke ihe dielectric na ọkpụrụkpụ nke oyi akwa ígwè ahụ. Usoro vaporization chọrọ ezigbo oxygen na ihe dielectric nwere oke oxygen dị elu nwere ezigbo ihe ngwọta onwe onye. Ụfọdụ n'ime ihe mkpuchi ihe nkiri plastik ndị nwere ezigbo njirimara ịgwọ onwe ha gụnyere polypropylene, polyester na polycarbonate. N'aka nke ọzọ, ihe mkpuchi ihe nkiri plastik nwere obere oxygen dị n'elu nwere njirimara ọgwụgwọ onwe onye na-adịghị mma. Polyphenylene sulfide (PPS) bụ otu n'ime ihe dielectric dị otú ahụ.

E wezụga ime ka ntụkwasị obi dịkwuo mma, ikike ịgwọ onwe onye nke ihe nkiri metallized na-enyere aka ime ka ndụ ọrụ ha ka mma. Agbanyeghị, ọgwụgwọ onwe onye na-ebelata mpaghara electrode metallized ka oge na-aga.

N'ime ngwa, ụfọdụ ọnọdụ ndị nwere ike ime ka ihe dị n'ime ya daa ngwa ngwa gụnyere oke okpomọkụ, oke voltaji, àmụ̀mà, oke iru mmiri, na nnyonye anya eletrọnịkị (EMI).

E wezụga ezigbo ihe ndị na-agwọ onwe ha, ihe mkpuchi ihe nkiri polyester metallized nwekwara nnukwu dielectric constant, ezigbo okpomọkụ kwụsiri ike, ike dielectric dị elu, na arụmọrụ volumetric dị mma. Àgwà ndị a na-eme ka capacitors ndị a dị mma maka ojiji izugbe. A na-ejikarị capacitors polyester metallized eme ihe maka ngwa DC dịka igbochi, ịgafe, decoupling, na igbochi mkpọtụ.

Ndị na-eji ígwè eme ka polypropylene capacitors na-enye ike mgbochi mkpuchi dị elu, obere nnabata dielectric, obere mfu dielectric, ike dielectric dị elu, na nkwụsi ike ogologo oge. A na-eji ihe ndị a na-arụ ọrụ nke ọma na ngwa ndị a na-ejikọta na isi dịka sekit nzacha, ballasts ọkụ, na sekit snubber. Ndị na-eji ígwè eme ka polypropylene film capacitors nwere ike iguzogide nnukwu voltaji na ibu dị elu, ha dịkwa mma maka ngwa ndị nwere nnukwu ohere nke steep pulse. A na-ejikarị capacitors ndị a eme ihe na njikwa moto, snubbers, ihe ọkụ eletrik switch mode, na ihe nlekota.

Mmechi

Ntụkwasị obi na ndụ ọrụ nke capacitors dabere nke ukwuu na njirimara ha na-agwọ onwe ha. Akụkụ ndị na-adịghị arụ ọrụ nke nwere àgwà ọgwụgwọ onwe onye dị mma na-abara uru karịa ma na-enye ndụ ọrụ ogologo oge. Njirimara ọgwụgwọ onwe onye dị mma nke capacitors ihe nkiri metallized na-eme ka ike ha dịkwuo elu ma mee ka ha dabara adaba maka ọtụtụ ngwa. Na mgbakwunye, akụkụ ndị a siri ike na-ada ada na-emeghe-circuit, nke a na-eme ka ha dị mma maka ngwa ndị chọrọ akụkụ nwere ọnọdụ ọdịda dị nchebe.

N'aka nke ọzọ, ihe na-agwọ onwe ya nke ihe mkpuchi ihe nkiri metallized na-eme ka ihe na-efunahụ dịkwuo elu ma belata ikike zuru oke. E wezụga ezigbo ihe mkpuchi ihe nkiri metallized na-enyekwa ike mgbawa dị elu na arụmọrụ olu dị elu.

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