Ukunemba okungaguquki kagesi/ okungaguquki okukhona kwe-monolithic kusebenzisa i-monolithici-adaptha yamandla, elungiselelwe isikhulisamandla sokusebenza esikabili samandla aphansi kanye nesilawuli esifanayo esilungisekayo ukuze kuthuthukiswe i-lophole yokulawula ugesi kanye nendawo yokulawula ekhona.Uma kuqhathaniswa ne-lophole yokulawula eyakhiwe ama-transistors, inezinzuzo zokunemba okuphezulu kwe-voltage engaguquki kanye nesifunda esingaguquki esikhona, esiqondile se-peripheral, inani elincane lokumelana nokutholwa okukhona, ukunciphisa ukusetshenziswa kwamandla kanye nokuthuthukisa ukusebenza kahle kwamandla.Ukusebenza kwayo kwamandla kungafinyelela ku-80%.Lolu hlobo lokunikezwa kwamandla lufanelekileamashaja amabhethri asheshayo amalaptopkanye namarekhodi evidyo kliphu.
Umjikelezo we-15v2a ukunemba kwe-voltage engaguquki / i-adaptha yamandla ephumayo yamanje iboniswa esithombeni.Amasekethe amane ahlanganisiwe asetshenziswa kusekethe: I-TOP214Y i-adaptha yamandla e-monolithic (IC1), i-PC816A i-optocoupler (IC2), isilawuli esinembayo esilungiswayo esishintshayo esingu-tl431C (C3), kanye ne-amplifier esebenza kabili yamandla aphansi lm358 (iC4, kufaka phakathi izikhulisamandla ezimbili zokusebenza ic4a kanye ic4b).
Isekhethi inezici ezilandelayo:
- ① Iluphu yokulawula i-voltage yenziwe nge-ic4b, IC3, vd5, kanye nezimbangi zamasampula u-R3 no-R4;Iluphu yokulawula yamanje yenziwe ic4a, vd6, kanye ne-overcurrent discovery resistor R6.
- ② Iluphu yokulawula i-voltage kanye nomsebenzi wamanje weluphu wokulawula ngokomgomo othi "logic noma isango", okungukuthi, nganoma yisiphi isikhathi, iluphu okuphuma kwayo kusezingeni eliphezulu idlala indima yokulawula.
- ③ I-NSB yokuchema yesibili yengezwa ukuze inikeze amandla kuluphu yokulawula.Ukuchema kwesibili kungalandela ngokuzenzakalelayo ukuguqulwa kwe-voltage ye-DC yakho ukuze ibe nezici zamanje eziqhubekayo lapho i-voltage ephumayo U-U incipha kakhulu.Izongena esimweni sokuqalisa kabusha okuzenzakalelayo kuphela uma u-≤ 0.8V.
- ④ I-adaptha yamandla ye-chip eyodwa ye-TOP214y isetshenziswa, futhi amandla okukhiphayo alinganiselwe afinyelela ku-30W
- ⑤ Uma iluphu yokulawula yamanje eyakhiwe i-amplifier yokusebenza yamukelwa, ukumelana kokumelana nokutholwa kwamanje kwe-R6 kungancishiswa ku-0.1q, ukusetshenziswa kwamandla kungancishiswa ku-0.4W, kanye nokusebenza kahle kwamandla kungathuthukiswa.
- ⑥ Nyusa inani eliphezulu le-voltage yempendulo ku-46v.Lapha, i-PC816A optocoupler ikhethiwe, i-U (BR) yayo CEO = 70V > 40V.
Ngaphansi kwezimo ezijwayelekile, indandatho yokulawula i-voltage isebenza, kanye ne-adaptha yamandla isebenza endaweni ye-voltage eqhubekayo.Ingena endaweni ekhona engaguquki uma sengisondele ku-2a.Okwamanje, indandatho yokulawula ekhona iyasebenza.Itheminali yokufaka yesigaba ye-ic4a itholwe isignali ekhona yokutholwa engu-ur6, kanye netheminali yokufaka ehlanekezelwe ixhunywe ne-voltage divider voltage ufy.Iphaneli yokuhlukanisa amandla kagesi yenziwe nge-R8, tl431c, kanye ne-r5.I-Ic4a ikhipha iphutha ngemuva kokuqhathanisa i-ub6 ne-ufy.Isiginali engu-U ngemva kwalokho iba isignali yamanje nge-vd5 kanye ne-R1, iya ngqo ku-LED ku-optocoupler, futhi ngemva kwalokho iphathe umjikelezo wesibopho we-TOP214Y ukuze kugcinwe ukukhishwa okukhona kwe-io kokungapheli kokunikezwa kwamandla endaweni yamanje eqhubekayo.Ngokungangabazeki, i-vd5, kanye ne-vd6, zilingana "noma isango".Uma iluphu yokulawula yamanje ikhipha izinga eliphezulu kanye ne-voltage loop yokulawula imiphumela ileveli ephansi, ukunikezwa kwamandla kusebenza kusimo sokukhiphayo samanje esiqhubekayo;Ngokuphambene nalokho, isebenza esimweni somphumela we-voltage njalo.
Isikhathi sokuthumela: May-20-2022