A amandla transformerless supply: injongo, ikakhulukazi, isimiso yokusebenza apharathasi

Amandla izinto computer zisekelwe transformerless izifunda ixhunywe kwinethiwekhi (empeleni pulsed ugesi). Basuke izimpawu value eliphezulu kahle, ubukhulu encane nesisindo ongaphakeme. Nokho, amandla supply transformerless has a abalulekile ethile - umsindo spikes abe nomthelela omubi kwamanye izikimu PC namanye amadivayisi umthengi electronic. Ngakho-ke, umkhiqizo ngamunye onjalo sihamba test ezinkulu ukuhambelana kagesi nezinye izinto. Ngaphezu kwalokho, transformer kancane amandla Iyunithi enikeza has ngabodwa kagesi e yingxenye wesifunda ngogesi amapayipi voltage. Lokhu, kudinga ukusetshenziswa izinyathelo ezikhethekile ezokuphepha ngesikhathi ukukhanda izihloko ezinjalo.

Transformerless ugesi: izingxenye eziyinhloko obusebenzayo

I-apharathasi siqukethe le izingxenye ezilandelayo:

- a rectifier inethiwekhi;

- EMC isihlungi;

- inhlamvu wesifunda;

- capacitive isihlungi;

- voltage Converter esekelwe ishayela amandla inverter;

- wesifunda odala i voltage okukhiphayo;

- circuit okulawula;

- ukwakha bese bedlulisela ukujikeleza + amasignali impendulo circuit control.

izakhi ezengeziwe

Kuye imodeli nokusebenza, transformer kancane ugesi kungafaka izifunda ezengeziwe ezifana somthetho komugqa ngefomu ngokuqhubekayo noma ihlanganiswe, Ukuvikelwa sindisa input bese okukhipha voltage wamanje, kanye ukucindezelwa wesifunda. Ngaphezu kwalokho, ngo-mandla supply ingase ihlanganise busebenze odala amasignali control ekhethekile ukuhlinzeka ofanayo zedivayisi ukuba ngiyokhonza isifunda okuphakelayo.

Umgomo we operation

Ukushintsha ama jikelele amandla kagesi i-DC voltage ukuguqulwa wenziwa voltage okokufaka kathathu. Okokuqala, it is kuyalungiswa futhi eshelelayo. Imiphumela iba yinhlanganisela yokukhandleka voltage DC, kwakhiwa emva okuyinto ka pulses unxande ngesilinganiso esingamaphesenti amashumi kilohertz. Ngemva kwalokho, pulses bayaguquka, kuse ecaleni yesibili nge Coefficient ehambisana, kanye usaya ukulungiswa kwananoma futhi bushelelezi. Inkosi node transformerless ugesi voltage converters osemqoka, futhi ikakhulukazi amandla abo iyunithi (ephezulu amandla okukhipha esiteji). Lezi izigaba zingahlukaniswa zibe owodwa kwaphela push-silingo.

Ashintshekayo segezi

Ukuze ulungise okukhiphayo voltage yamanani amadivayisi transformerless ngokuvamile ezisetshenziswa su ishayela ububanzi bashintshashintshe izwi, bahlabe okuyinto ushintsho kokushaya ubude, kanye ikhefu lihlatshwa therebetween. Uma lokhu imvamisa ushintsho uhlala ingashintshiwe. Ubudlelwano phakathi kwalezi izinto eziningi njengoba isikhathi ngamandla kwenhliziyo kanye phumula, kuncike voltage okukhiphayo. It is ngokuzenzakalelayo washintsha ukulondoloza lo voltage okukhiphayo ngaphakathi ukubaluleka bokuzisholo.