Isimiso sokusebenza se-inverter ukulawula ukusebenza kwesistimu yonke ngokusebenzisa isifunda sokulawula. Isifunda se-inverter siqeda umsebenzi wokuguqula i-current ngqo ibe yamanje eshintshanayo, futhi isifunda sokuhlunga sisetshenziselwa ukuhlunga amasignali angafuneki.

Umsebenzi wesifunda se-inverter nawo ungacwengwa ngale ndlela elandelayo: kuqala, i-oscillating circuit iguqula i-direct current ibe i-alternating current; okwesibili, ikhoyili ikhulisa amandla ashintshashintshayo angajwayelekile abe wamanje oshintshashintshayo wesikwele; ekugcineni, ukulungiswa kwenza igagasi elishintshanayo libe igagasi elishintshashintshayo lamanje ngegagasi lesikwele.

Isimiso sokusebenza sengxenye ngayinye ye-inverter

1. Ingxenye yesixhumi esibonakalayo: Ingxenye yokufaka ine 3 izimpawu, 12Okokufaka kwe-V DC VIN, ukusebenza vumela i-voltage ENB kanye nesiginali yokulawula yamanje ye-Panel DIM. I-VIN ihlinzekwa yi-adaptha, futhi amandla kagesi e-ENB ahlinzekwa yi-MCU ebhodini lomama, futhi ukubaluleka kwayo 0 noma 3v. Uma ENB=0, i-inverter ayisebenzi, futhi lapho ENB=3V, i-inverter isesimweni esivamile sokusebenza; kuyilapho i-voltage ye-DIM Inikezwe ibhodi elikhulu, ububanzi bokuhluka buphakathi kuka-0-5V. Amanani ahlukene e-DIM abuyiselwa kutheminali yempendulo yesilawuli se-PWM. I-current ehlinzekwa yi-inverter kumthwalo nayo izohluka. Inani elincane le-DIM, okukhiphayo kwamanje nge-inverter. Okukhudlwana.

2. I-voltage iqala umjikelezo: Uma i-ENB isezingeni eliphezulu, ikhipha i-voltage ephezulu ukuze ikhanyise ishubhu ye-backlight yephaneli.

3. Isilawuli se-PWM: Inemisebenzi elandelayo: I-voltage yereferensi yangaphakathi, isikhulisi sephutha, i-oscillator kanye ne-PWM, ukuvikelwa kwe-over-voltage, ukuvikelwa kwe-voltage, ukuvikelwa kwesifunda esifushane, okukhipha i-transistor.

4. Ukuguqulwa kwe-DC: Isekethe yokuguqula i-voltage yakhiwe ishubhu yokushintsha ye-MOS kanye ne-inductor yokugcina amandla. I-pulse yokufaka ikhuliswa i-push-pull amplifier bese ishayela ishubhu ye-MOS ukuze ishintshe., ukuze i-voltage ye-DC ikwazi ukushaja futhi ikhiphe i-inductor, ukuze esinye isiphetho se-inductor sibe Thola i-voltage ye-AC.

5. I-LC oscillation kanye nesekethe yokuphumayo: ukuqinisekisa ukuthi i-voltage engu-1600V edingekayo ukuze isibani siqale, kanye nokunciphisa i-voltage ibe ngu-800V ngemva kokuba isibani siqalisiwe.

6. Impendulo ye-voltage yokuphumayo: Lapho umthwalo usebenza, i-voltage eyisampula ibuyiselwa emuva ukuze kuzinze ukuphuma kwe-voltage ye-inverter