Kwinjira mu Isi ya MOSFET DOSE Yumubiri: Sobanukirwa Uruhare rwabo mugushushanya

Metal-oxide-semiconductor field-effect transistors (MOSFETs) yahinduye inganda za elegitoroniki, ihinduka ibice byose mubice byinshi byumuzunguruko. Mugihe ibikorwa byabo byibanze ari ukugenzura no kongera ibimenyetso byamashanyarazi, MOSFET nayo ibika ibintu bikunze kwirengagizwa nyamara byingenzi: diode yumubiri imbere. Iyi nyandiko ya blog yinjiye muburyo bukomeye bwa diode yumubiri wa MOSFET, ikora ubushakashatsi kubiranga, akamaro mugushushanya kwizunguruka, hamwe nibisabwa.

Kumenyekanisha MOSFET Yumubiri Diode

Yinjijwe muburyo bwa MOSFET, diode yumubiri ni ihuriro ryihariye rya parasitike ikora hagati yimiyoboro n’akarere kavukire. Iyi diode yerekana icyerekezo kidafite icyerekezo, cyemerera umuyaga kunyura mumazi ugana isoko ariko ntabwo aribyo.

Akamaro ka Diode yumubiri mugushushanya

Diode yumubiri igira uruhare runini mubikorwa bitandukanye byumuzunguruko, cyane cyane mubyuma bya elegitoroniki:

Diode ya Freewheeling: Mugihe cyo kuzimya icyiciro cya MOSFET, diode yumubiri ikora umuyoboro wa inductive uva mumitwaro, ikarinda umuvuduko wa voltage kandi ikarinda MOSFET kwangirika.

Kurinda Ibiriho Kurinda: Mumuzunguruko aho ihindagurika ryimyuka ihangayikishije, diode yumubiri ikora nka bariyeri, ikabuza umuyaga gusubira muri MOSFET.

Snubber Diode: Diode yumubiri irashobora kuba nka diode ya snubber, ikwirakwiza ingufu zibitswe muri parasitike kandi ikarinda ingufu za voltage mugihe cyo guhinduranya ibintu.

Ibitekerezo kuri MOSFET MODE Yumubiri

Mugihe diode yumubiri itanga inyungu zihariye, ni ngombwa gusuzuma ibintu bimwe na bimwe mubishushanyo mbonera:

Ubushobozi bwa Voltage Ubushobozi: Igipimo cyumubyigano wa diode yumubiri kigomba guhuza cyangwa kurenza umuzenguruko ntarengwa wa voltage kugirango wirinde gusenyuka.

Imbere yo Gukemura Imbere: Ubushobozi bwa diode yumubiri ubushobozi bwimbere bugomba kuba buhagije kugirango ukemure umuyaga mwinshi mugihe cyo kwidagadura cyangwa guhinduranya ibintu.

Guhindura Umuvuduko: Umuvuduko wa diode yumubiri wihuta, cyane cyane mubisabwa inshuro nyinshi, ntibigomba gutangiza ubukererwe cyangwa igihombo gikomeye.

Porogaramu ya MOSFET Yumubiri

Diyode yumubiri isanga porogaramu muburyo butandukanye bwumuzunguruko:

Guhindura DC-DC: Muguhindura buck, diode yumubiri ikora nka diode yubusa, ikarinda MOSFET kwirinda imbaraga za voltage inductive.

Imiyoboro yo kugenzura ibinyabiziga: Diode yumubiri irinda ihinduka ryimyuka iyo moteri ifashwe cyangwa ikabyara EMF inyuma.

Ibikoresho by'amashanyarazi: Mubikoresho bitanga ingufu, diode yumubiri irinda MOSFET mugihe cyo guhinduranya ibintu kandi ikabuza guhinduranya imbaraga ziva mumitwaro.

Umwanzuro

Dode ya MOSFET yumubiri, akenshi yirengagizwa, igira uruhare runini mugushushanya umuziki, cyane cyane mubyuma bya elegitoroniki. Gusobanukirwa ibiranga, akamaro, nimbibi ningirakamaro mugushushanya imirongo ikomeye, ikora neza, kandi yizewe. Mugihe ikoranabuhanga rya MOSFET rigenda ritera imbere, akamaro ka diode yumubiri birashoboka ko kazakomeza kubaho, bikomeza akamaro kayo mw'isi ya elegitoroniki igenda itera imbere.