Kuchinja vs Linear Power Supplies: Ndeipi Yekusarudza?

Kana zvasvika pakusarudza magetsi, isu kazhinji tinozviwana tabvarurwa pakati peSwitching Power Supply uye Linear Power Supply. Mhando mbiri dzemagetsi emagetsi ane zvawo zvakanakira, zvichiita kuti ive yakakodzera kune akasiyana maapplication. Kunzwisisa mutsauko pakati pavo kuchakubatsira iwe kuita sarudzo ine ruzivo paunenge uchigadzira yako simba system.

Chii chinonzi Switching Power Supply?
A Switching Power Supply imhando yemagetsi emagetsi anogadzirisa kubuda kwemagetsi uye ikozvino nekukurumidza kuchinja zvinhu zvemagetsi (zvakadai se transistors) uye kuvhara. Inoshanda nekushandura magetsi ekuisa kune inodiwa inobuda voltage uchishandisa yakakwira-frequency switch-mode zvikamu (senge boost, buck, kana buck-boost converters). Kuchinja kweMagetsi Supplies inoshanda zvakanyanya nekuti inoshandura simba nekurasikirwa kushoma, zvichiita kuti ive yakanakira zvishandiso zvinoda compact dhizaini uye inogadziriswa voltages.

Zvichienzaniswa neyakajairwa Linear Power Supplies, Kuchinja Kwemagetsi kwakawedzera simba-rinoshanda, kazhinji kuwana mazinga ekubudirira anodarika 80%, nepo Linear Power Supplies isingashande uye inogadzira kupisa kwakawanda.

Chii chinonzi Linear Power Supply?
Linear Power Supply isimba remagetsi remagetsi rinogadzirisa kubuda kwemagetsi nekugadzirisa ikozvino. Inoshanda nekugadzirisa zvakananga magetsi ekuisa uye kudzora kuyerera kwazvino kuburikidza nezvinhu zvinopikisa kana zvitubu zvazvino kudzikamisa yakabuda voltage. Mukana mukuru we Linear Power Supplies kugona kwavo kupa yakagadzikana yakabuda neruzha rushoma, ichiita kuti ive yakakodzera kune maapplication anoda akachena uye akagadzikana voltage.

Nekudaro, Linear Power Supplies inowanzoita shoma nekuti simba rakawandisa rinobviswa sekupisa. Semuenzaniso, kana uchidzika pasi voltage kubva ku12V kuenda ku5V, iyo yakawandisa simba inoshandurwa kuita kupisa kwete kushandiswa nemazvo.

Misiyano Yakakosha Pakati PeKuchinja uye Linear Power Supplies
kunyatsoshanda

Kuchinja kweMagetsi Supplies kunoshanda zvakanyanya kupfuura Linear Power Supplies. Vanoshandisa high-frequency switching techniques kushandura simba nemazvo nekurasikirwa kushoma kwekupisa, kazhinji vachiwana mazinga ekushanda e80% kana kupfuura. Kusiyana neizvi, Linear Power Supplies inoshandura yakawandisa voltage kuita kupisa, zvichikonzera kuderera kwekuita, kazhinji pazasi pe50%.

Kukura uye Kurema

Switching Power Supplies kazhinji idiki uye zvakareruka pane Linear Power Supplies nekuti inoshanda nepamusoro mafrequency uye inoda kupera kushoma kwekupisa. Ivo havadi maheatsink makuru kana zvinhu zvakakura kubata kupisa. Kune rimwe divi, Linear Power Supplies yakakura uye inoda maheatsink mahombe kuti abate kupisa kunogadzirwa nekuderera kwavo kugona.

Output Noise uye Kugadzikana

Linear Power Supplies inokunda mukupa yakagadzikana uye isina ruzha-yakabuda voltage. Nekuda kwemagadzirirwo awo ari nyore, akanakira maapplication anoda ruzha rwakaderera uye yakagadzikana magetsi, senge maodhiyo emidziyo uye nemazvo zviridzwa.

Kuchinja Kwemagetsi, zvisinei, kunogona kuburitsa electromagnetic interference (EMI) uye ruzha nekuda kwekushanda kwavo kwepamusoro-frequency switching. Kunyangwe zvemazuva ano Switching Power Supplies zvinoshandisa kusefa nemaitiro ekudzivirira kudzikisira nyaya idzi, zvinogona kunge zvisina kukodzera kumaapplication anoda ruzha rwakanyanya.

mutengo

Linear Power Supplies inowanzova nemitengo yakaderera yekutanga nekuda kwekureruka kwavo dhizaini. Zvisinei, kushanda kwavo kwakaderera uye hukuru hukuru hunoreva kuti vanogona kuunza mari yakakwirira yenguva refu maererano nekushandiswa kwesimba uye kutonga kwekupisa.

Kushandura Magetsi Zvigadzirwa zvinowanzove nekudyara kwekutanga kwepamusoro nekuda kwekunyanya kuomarara dhizaini uye maitiro ekugadzira. Nekudaro, kugona kwavo kwepamusoro uye kuderera kwesimba rekushandisa kunogona kutungamira kudzikisa mutengo wakazara mukufamba kwenguva, kunyanya kune yakakwirira-simba uye inoenderera-kushandisa-kushandisa.

Applications

Kushandura Magetsi emagetsi akakodzera kushanda kwepamusoro-soro, kushandiswa kwepasi-simba kushandiswa kunoda kugadziriswa kwemagetsi emagetsi, zvakadai semagetsi emagetsi emakombiyuta, mwenje we LED, majaja ebheteri, uye maturusi emagetsi. Iwo akanyatsokodzera kune yakakwirira-simba zvishandiso uye maapplication uko compact size yakakosha.

Linear Power Supplies inonyanya kukodzera kune maapplication anoda yakagadzikana uye isina ruzha-voltage, senge odhiyo amplifiers, chaiyo zviridzwa, uye michina yekurapa. Iwo akanakira mamiriro ezvinhu uko voltage mhando yakakosha.

Sarudzo pakati peSwitching Power Supply uye Linear Power Supply zvinoenderana nezvako chaizvo zvekushandisa. Kana iwe uchida yakakwirira-inoshanda, compact, uye inochinjika magetsi ekupa, a Switching Power Supply ndiyo yakanakira sarudzo, kunyanya kune yakakwirira-simba uye shanduko-voltage application.

Nekudaro, kana iwe uchida magetsi anopa ekupedzisira-akaderera ruzha uye yakagadzikana zvakanyanya voltage, Linear Power Supply inogona kunge iri sarudzo iri nani, kunyanya kune maapplication ari mumidziyo inonzwisisika senge odhiyo masisitimu uye chaiyo chiridzwa. Nepo Kuchinja Kwemagetsi Kune mabhenefiti muzviitiko zvakawanda, Linear Power Supplies ichiri kuita basa rakakosha mune mamwe maapplication akasarudzika.

Kunzwisisa mutsauko uripo pakati pemhando mbiri dzemagetsi emagetsi uye kusarudza iyo chaiyo zvichienderana nezvaunoda kunove nechokwadi chekuti zvishandiso zvako zvinowana yakaringana simba rekutsigira.