Kuyini i-inverter?

I-inverter iyi-DC kuya ku-AC transformer, empeleni okuyinqubo yokuguqula i-voltage nge-converter. I-converter iguqula i-AC voltage yegridi yamandla ibe yi-12V DC output ezinzile, kuyilapho i-inverter iguqula i-12V DC voltage output yi-adaptha ibe yi-high-frequency high-voltage AC; zombili izingxenye zisebenzisa ubuchwepheshe obusetshenziswa kakhulu be-pulse width modulation (PWM). Ingxenye eyinhloko isilawuli esihlanganisiwe se-PWM, i-adaptha isebenzisa i-UC3842, kanti i-inverter isebenzisa i-chip ye-TL5001. Ububanzi bamandla okusebenza be-TL5001 bungu-3.6~40V, futhi ine-amplifier yamaphutha, i-regulator, i-oscillator, i-PWM generator enokulawula indawo efile, isifunda sokuvikela i-voltage ephansi kanye nesifunda sokuvikela i-short circuit.

Ingxenye yesikhombimsebenzisi sokufaka: Ingxenye yokufaka inezimpawu ezi-3, i-VIN yokufaka engu-12V DC, i-voltage esebenzayo i-ENB kanye nesignali yokulawula yamanje yephaneli i-DIM. I-VIN inikezwa yi-Adapter, kanti i-voltage ye-ENB inikezwa yi-MCU ebhodini lomama, futhi inani layo lingu-0 noma u-3V. Uma i-ENB=0, i-inverter ayisebenzi, futhi uma i-ENB=3V, i-inverter isesimweni sokusebenza esijwayelekile; kanti i-voltage ye-DIM inikezwa yibhodi lomama, futhi ububanzi bayo bokuhlukahluka buphakathi kuka-0 no-5V. Amanani ahlukene e-DIM anikezwa emuva ekugcineni kwempendulo yesilawuli se-PWM, futhi amandla amanje anikezwa yi-inverter emthwalweni nawo azohluka. Uma inani le-DIM lincane, kulapho amandla amanje akhishwa yi-inverter.

I-voltage start loop: Uma i-ENB iphezulu, i-voltage ephezulu iyakhishwa ukuze ikhanyise ishubhu yesibani sangemuva sePhaneli.

Isilawuli se-PWM: Siqukethe imisebenzi elandelayo: i-voltage yokubhekisela yangaphakathi, i-amplifier yamaphutha, i-oscillator kanye ne-PWM, ukuvikelwa kwe-overvoltage, ukuvikelwa kwe-undervoltage, ukuvikelwa kwe-short circuit, kanye ne-transistor yokukhipha.

Ukuguqulwa kwe-DC: Isekethe yokuguqulwa kwe-voltage yakhiwe yi-MOS switch tube kanye ne-energy storage inductor. I-input pulse ikhuliswa yi-push-pull amplifier bese iqhuba i-MOS tube ukuthi yenze isenzo sokushintsha, ukuze i-DC voltage ishaje futhi ikhiphe i-inductor, ukuze olunye uhlangothi lwe-inductor lukwazi ukuthola i-AC voltage.

Ukujikeleza kwe-LC kanye nesekethe yokuphuma: qinisekisa i-voltage engu-1600V edingekayo ukuze isibani siqale, bese wehlisa i-voltage ibe ngu-800V ngemva kokuthi isibani siqalile.

Impendulo ye-voltage yokukhipha: lapho umthwalo usebenza, i-voltage yesampula ibuyiselwa emuva ukuze kuzinziswe i-voltage yokukhipha ye-inverter ye-I.

Umsebenzi
I-inverter iguqula amandla e-DC (ibhethri, ibhethri lokugcina) ibe amandla e-AC (ngokuvamile angu-220v50HZ sine noma i-square wave). Ngokwe-layman, i-inverter iyidivayisi eguqula i-direct current (DC) ibe yi-alternating current (AC). Iqukethe i-inverter bridge, i-control logic kanye ne-filter circuit.
Kalula nje, i-inverter iyithuluzi likagesi eliguqula amandla e-DC aphansi (ama-volts angu-12 noma angu-24 noma ama-volts angu-48) abe amandla e-AC angu-220 volts. Ngoba amandla e-AC angu-220 volts avame ukulungiswa abe amandla e-DC ukuze asetshenziswe, futhi indima ye-inverter iphambene nalokho, yingakho igama libizwa kanjalo. Enkathini "yokuhamba", ihhovisi elihambayo, ukuxhumana kweselula, ukuzijabulisa kweselula kanye nokuzijabulisa. Uma usohambweni, akudingeki nje kuphela amandla aqondile aphansi avela kumabhethri noma amabhethri okugcina, kodwa futhi namandla ashintshanayo angu-220-volt, okuyinto ebalulekile empilweni yansuku zonke. Ama-inverter angahlangabezana nalezi zidingo.