Yintoni i-inverter?

I-inverter yi-DC ukuya kwi-AC transformer, eneneni yinkqubo yokuguqula i-voltage kunye ne-converter. I-converter iguqula i-AC voltage yegridi yamandla ibe yi-12V DC output ezinzileyo, ngelixa i-inverter iguqula i-12V DC voltage output yi-adaptha ibe yi-high-frequency high-voltage AC; zombini ezi ndawo zisebenzisa itekhnoloji ye-pulse width modulation (PWM) esetyenziswa kakhulu. Inxalenye ephambili yi-PWM integrated controller, i-adaptha isebenzisa i-UC3842, kwaye i-inverter isebenzisa i-TL5001 chip. Uluhlu lwe-voltage yokusebenza ye-TL5001 yi-3.6~40V, kwaye ine-error amplifier, i-regulator, i-oscillator, i-PWM generator enolawulo lwe-dead zone, i-low voltage protection circuit kunye ne-short circuit protection circuit.

Inxalenye yojongano lokufaka: Inxalenye yokufaka inezibonakaliso ezi-3, i-VIN yokufaka ye-12V DC, i-voltage esebenzayo ye-ENB kunye nesignali yokulawula yangoku yePanel DIM. I-VIN inikezelwa yi-Adapter, kwaye i-voltage ye-ENB inikezelwa yi-MCU kwi-motherboard, kwaye ixabiso layo yi-0 okanye i-3V. Xa i-ENB=0, i-inverter ayisebenzi, kwaye xa i-ENB=3V, i-inverter ikwimeko yokusebenza eqhelekileyo; kwaye i-voltage ye-DIM inikezelwa yi-motherboard, kwaye uluhlu lwayo lokwahluka luphakathi kwe-0 kunye ne-5V. Amaxabiso ahlukeneyo e-DIM anikwa kwisiphelo sempendulo somlawuli we-PWM, kwaye i-current enikezelwa yi-inverter kumthwalo nayo iya kwahluka. Okukhona ixabiso le-DIM lincinci, kokukhona i-current output enkulu yi-inverter.

I-voltage start loop: Xa i-ENB iphezulu, i-voltage ephezulu iphuma ukuze ikhanyise ityhubhu yesibane sangasemva sePanel.

Isilawuli se-PWM: Siqulathe le misebenzi ilandelayo: i-voltage yangaphakathi, i-error amplifier, i-oscillator kunye ne-PWM, ukhuseleko lwe-overvoltage, ukhuseleko lwe-undervoltage, ukhuseleko lwe-short circuit, kunye ne-output transistor.

Ukuguqulwa kwe-DC: Isekethe yokuguqulwa kwe-voltage yenziwe yityhubhu yokutshintsha ye-MOS kunye ne-inductor yokugcina amandla. I-input pulse iyandiswa yi-push-pull amplifier kwaye iqhube ityhubhu ye-MOS ukuba yenze isenzo sokutshintsha, ukuze i-DC voltage itshaje kwaye ikhuphe i-inductor, ukuze elinye icala le-inductor lifumane i-AC voltage.

I-LC oscillation kunye ne-output circuit: qinisekisa i-voltage ye-1600V efunekayo ukuze isibane siqalise, kwaye unciphise i-voltage ukuya kwi-800V emva kokuba isibane siqalile.

Impendulo ye-voltage ephumayo: xa umthwalo usebenza, i-voltage yesampulu ibuyiselwa ukuze kuzinziswe i-voltage ephumayo ye-inverter ye-I.

Umsebenzi
I-inverter iguqula amandla e-DC (ibhetri, ibhetri yokugcina) ibe ngamandla e-AC (ngokubanzi i-220v50HZ sine okanye i-square wave). Ngokwemigaqo yabantu abaqhelekileyo, i-inverter sisixhobo esiguqula i-direct current (DC) ibe yi-alternating current (AC). Iqulathe i-inverter bridge, i-control logic kunye ne-filter circuit.
Ngamafutshane, i-inverter sisixhobo se-elektroniki esiguqula amandla e-DC aphantsi (12 okanye 24 volts okanye 48 volts) abe ngamandla e-AC angama-220 volts. Ngenxa yokuba amandla e-AC angama-220 volts adla ngokulungiswa abe ngamandla e-DC ukuze asetyenziswe, kwaye indima ye-inverter ichasene noko, yiyo loo nto igama libizwa. Kwixesha "lokuhambahamba", iofisi yeselula, unxibelelwano lweselula, ukuzonwabisa ngeselula kunye nokuzonwabisa. Xa useluhambeni, akufuneki kuphela umbane othe ngqo ophantsi kwiibhetri okanye kwiibhetri zokugcina, kodwa kunye nombane otshintshanayo wama-220-volt, obaluleke kakhulu kubomi bemihla ngemihla. Ii-inverters zinokuhlangabezana nezi mfuno.