Kusintha vs Linear Power Supplies: Zomwe Mungasankhe?

Pankhani yosankha magetsi, nthawi zambiri timadzipeza tokha titang'ambika pakati pa Switching Power Supply ndi Linear Power Supply. Mitundu yonse iwiri yamagetsi ili ndi zabwino zake, zomwe zimawapangitsa kukhala oyenera ntchito zosiyanasiyana. Kumvetsetsa kusiyana pakati pawo kudzakuthandizani kupanga chisankho chodziwika bwino popanga dongosolo lanu lamagetsi.

Kodi Switching Power Supply ndi chiyani?
Switch Power Supply ndi mtundu wamagetsi omwe amayendetsa magetsi otulutsa ndi apano posintha mwachangu zida zamagetsi (monga ma transistors) kuyatsa ndi kuzimitsa. Imagwira ntchito potembenuza ma voliyumu olowetsa kukhala magetsi omwe amafunidwa pogwiritsa ntchito zida zosinthira pafupipafupi (monga ma boost, buck, kapena buck-boost converters). Kusintha Magetsi Ndikothandiza kwambiri chifukwa amasintha mphamvu ndikutaya pang'ono, kuwapangitsa kukhala abwino kwa zida zomwe zimafunikira mapangidwe ang'onoang'ono ndi ma voltages osinthika.

Poyerekeza ndi Ma Linear Power Supplies achikhalidwe, Kusintha Kwamagetsi ndikosavuta kwambiri, nthawi zambiri kumakwaniritsa magwiridwe antchito opitilira 80%, pomwe Linear Power Supplies simagwira bwino ntchito ndipo imatulutsa kutentha kwambiri.

Kodi Linear Power Supply ndi chiyani?
Linear Power Supply ndi mphamvu yachikhalidwe yomwe imayendetsa magetsi otulutsa posintha mphamvu. Zimagwira ntchito posintha mwachindunji mphamvu yolowera ndikuwongolera kayendedwe kapano kudzera muzinthu zodzitchinjiriza kapena magwero apano kuti akhazikitse mphamvu yamagetsi. Ubwino waukulu wa Linear Power Supplies ndi kuthekera kwawo kopereka zotulutsa zokhazikika komanso phokoso lochepa, kuwapangitsa kukhala oyenera kugwiritsa ntchito zomwe zimafunikira magetsi oyera komanso okhazikika.

Komabe, Linear Power Supplies amakonda kukhala osachita bwino chifukwa mphamvu zochulukirapo zimatayidwa ngati kutentha. Mwachitsanzo, potsitsa voteji kuchokera ku 12V kupita ku 5V, mphamvu yochulukirapo imasinthidwa kukhala kutentha m'malo mogwiritsidwa ntchito bwino.

Kusiyana Kwakukulu Pakati pa Kusintha ndi Linear Power Supplies
Mwachangu

Kusintha Magetsi ndikothandiza kwambiri kuposa Linear Power Supplies. Amagwiritsa ntchito njira zosinthira pafupipafupi kuti asinthe mphamvu moyenera ndikutaya kutentha pang'ono, zomwe nthawi zambiri zimakwaniritsa magwiridwe antchito a 80% kapena kupitilira apo. Mosiyana ndi izi, Linear Power Supplies amasintha magetsi ochulukirapo kukhala kutentha, zomwe zimapangitsa kuti pakhale kutsika, nthawi zambiri pansi pa 50%.

Kukula ndi Kulemera

Makina Osinthira Mphamvu nthawi zambiri amakhala ang'onoang'ono komanso opepuka kuposa Linear Power Supplies chifukwa amagwira ntchito pamafuriji apamwamba kwambiri ndipo amafuna kutulutsa kutentha kochepa. Safuna ma heatsink akuluakulu kapena zida zazikulu kuti aziwongolera kutentha. Kumbali ina, Linear Power Supplies ndi zazikulu ndipo zimafuna ma heatsink akuluakulu kuti azitha kutentha komwe kumabwera chifukwa cha kuchepa kwawo.

Linanena bungwe Phokoso ndi Kukhazikika

Linear Power Supplies amapambana popereka magetsi okhazikika komanso opanda phokoso. Chifukwa cha mapangidwe awo osavuta, ndi abwino kwa mapulogalamu omwe amafunikira phokoso lochepa kwambiri ndi magetsi okhazikika, monga zida zomvera ndi zida zolondola.

Kusintha kwa Mphamvu Zopangira, komabe, kumatha kupangitsa kuti ma electromagnetic interference (EMI) asokonezeke komanso phokoso chifukwa cha ntchito yawo yosinthira pafupipafupi. Ngakhale ma Switching Power Supplies amakono amagwiritsa ntchito njira zosefera ndi zotchinjiriza kuti achepetse zovutazi, mwina sizingakhale zoyenera pamapulogalamu omwe amafunikira phokoso lotsika kwambiri.

Cost

Linear Power Supplies amakonda kukhala ndi zotsika mtengo zoyambira chifukwa cha kapangidwe kake kosavuta. Komabe, kutsika kwawo kocheperako komanso kukula kwakukulu kumatanthauza kuti atha kukhala ndi ndalama zambiri zanthawi yayitali pakugwiritsa ntchito mphamvu komanso kuwongolera kutentha.

Kusinthana kwa Power Supplies nthawi zambiri kumakhala ndi ndalama zambiri zoyambira chifukwa cha mapangidwe awo ovuta komanso njira zopangira. Komabe, kugwiritsa ntchito bwino kwawo komanso kugwiritsa ntchito mphamvu pang'ono kumatha kubweretsa kutsika mtengo kwanthawi yayitali, makamaka pakugwiritsa ntchito mphamvu zambiri komanso kugwiritsa ntchito mosalekeza.

Mapulogalamu

Kusintha Magetsi ndi oyenera kugwiritsa ntchito bwino kwambiri, kugwiritsa ntchito mphamvu zochepa zomwe zimafunikira mphamvu zamagetsi zosinthika, monga magetsi apakompyuta, kuyatsa kwa LED, ma charger a batri, ndi zida zamagetsi. Ndizoyenerana bwino ndi zida zamphamvu kwambiri komanso ntchito zomwe kukula kophatikizana ndikofunikira.

Linear Power Supplies ndi yoyenera kwambiri pamapulogalamu omwe amafunikira magetsi okhazikika komanso opanda phokoso, monga zokulitsa mawu, zida zolondola, ndi zida zamankhwala. Ndiabwino pamikhalidwe yomwe mphamvu yamagetsi ndiyofunikira kwambiri.

Kusankha pakati pa Switching Power Supply ndi Linear Power Supply zimatengera zomwe mukufuna kugwiritsa ntchito. Ngati mukufuna mphamvu yamphamvu kwambiri, yophatikizika, komanso yosinthika, Kusintha Kwamagetsi ndikoyenera, makamaka kwamagetsi apamwamba komanso osinthika.

Komabe, ngati mukufuna magetsi omwe amapereka phokoso lotsika kwambiri komanso magetsi okhazikika, Linear Power Supply ikhoza kukhala njira yabwinoko, makamaka pazida zovutirapo monga makina omvera ndi zida zolondola. Ngakhale Kusintha Kwamagetsi kuli ndi zabwino nthawi zambiri, Linear Power Supplies akadali ndi gawo lofunikira pamapulogalamu ena apadera.

Kumvetsetsa kusiyana pakati pa mitundu iwiri ya magetsi ndikusankha yoyenera kutengera zomwe mukufuna kuwonetsetsa kuti zida zanu zimalandira chithandizo choyenera chamagetsi.