ESR inokanganisa sei ma capacitor?

Pakunzwisisa ma capacitor, chimwe chezvinhu zvakakosha zvekufunga nezvacho iESR (equivalent series resistance). ESR hunhu hwema capacitor ese uye hune basa rakakosha pakuona mashandiro awo ese. Muchinyorwa chino, tichaongorora hukama huripo pakati peESR nema capacitor, tichinyanya kutarisa paMLCC dzakaderera dzeESR(ma capacitor eceramic ane layer yakawanda).

ESR inogona kutsanangurwa seresistance inoitika yakatevedzana ne capacitance ye capacitor nekuda kwemaitiro asina kunaka e capacitor elements. Inogona kufungwa nezvayo seresistance inoderedza kufamba kwemagetsi kuburikidza ne capacitor. ESR hunhu husingadiwi nekuti inoita kuti simba ripararire sekupisa, nokudaro ichideredza kushanda zvakanaka kwe capacitor uye ichikanganisa mashandiro ayo.

Saka, ESR ine simba rei pama capacitor? Ngationgororei zvakadzama.

1. Kuparadzana kwesimba: Kana simba richiyerera nepa capacitor, simba rinorasika muchimiro chekupisa nekuda kwekusasimba kunopiwa neESR. Kuparadzana kwesimba uku kunogona kukonzera kuwedzera kwekupisa, izvo zvinogona kukanganisa mashandiro ese uye hupenyu hwebasa re capacitor. Saka, kuderedza ESR kwakakosha kuderedza kurasikirwa kwesimba uye kuona kuti capacitor inoshanda zvakanaka.

2. Kuputika kweVoltage: Mumashandisirwo anoitwa ma capacitor pakuchenesa nekutsvedza, ESR inova chinhu chakakosha. ESR inogadzira ma voltage ripples kana kuchinja-chinja kana voltage iri pa capacitor ikachinja nekukurumidza. Ma ripples aya anogona kukonzera kusagadzikana kwecircuit uye kukanganisa, zvichikanganisa kunaka kwechiratidzo chekubuda. Ma capacitor e ESR akaderera akagadzirirwa kuderedza ma voltage ripples aya uye kupa tambo dzemagetsi dzakagadzikana.

3. Kumhanya kwekuchinja: Macapacitor anowanzo shandiswa mumasekete emagetsi anosanganisira mashandiro ekuchinja nekukurumidza. ESR yakakwira inogona kuderedza zvakanyanya kumhanya kwekuchinja kwesekete, zvichikonzera kunonoka uye kuderedza kushanda zvakanaka. Macapacitor eESR akaderera, kune rumwe rutivi, anopa huwandu hwekuchaja nekuburitsa simba nekukurumidza, zvichiita kuti zvive zvakanaka kune maapplication anoda kukurumidza kuchinja.

4. Mhinduro yefrequency: ESR inewo simba guru pamhinduro yefrequency yecapacitor. Inoisa impedance inochinja nefrequency. Ma capacitor eESR ane impedance yakakwira pamafrequencies akakwira, zvichideredza mashandiro awo mumashandisirwo anoda frequency yakakura. Ma capacitor eESR akaderera ane impedance yakaderera pane wide frequency spectrum uye anoratidzwa kuti anoshanda zvakanyanya mumamiriro ezvinhu aya.

Kugadzirisa matambudziko anokonzerwa neESR yakakwira,MLCC dzakaderera dzeESRMaMLCC aya anowanikwa zvakanyanya mumakore achangopfuura. Aya maMLCC anogadzirwa achishandisa zvinhu zvepamusoro uye matekiniki ekugadzira kuti awane ESR yakaderera zvakanyanya kana tichienzanisa nema capacitor akajairwa. Mhinduro yavo yefrequency iri nani, kushandiswa kwesimba shoma uye kugadzikana kwakawedzerwa kunoita kuti akwanise kushandiswa zvakasiyana-siyana zvinosanganisira magetsi, masevhisi ekusefa, kupatsanura uye kuyambuka.

Muchidimbu, ESR chinhu chakakosha chinokanganisa mashandiro ecapacitor. Inosarudza kupararira kwesimba recapacitor, kuyerera kwevoltage, kumhanya kwekuchinja, uye mhinduro yema frequency. Ma MLCC eESR akaderera akabuda semhinduro yekuderedza matambudziko ane chekuita neESR yakakwira, zvichipa mashandiro anoshanda zvakanaka uye akavimbika emhando dzakasiyana dzemagetsi nemasekete.