Ndi kupita patsogolo kwaukadaulo wamakono, kutuluka kwa ma inverters kwapereka mwayi wambiri kwa aliyense, ndiye inverter ndi chiyani?Kodi inverter imagwira ntchito bwanji?Anzanu omwe ali ndi chidwi ndi izi, bwerani mudzadziwe limodzi.
Kodi inverter ndi chiyani:
Inverter imatembenuza mphamvu ya DC (batire, batire yosungira) kukhala mphamvu ya AC (nthawi zambiri 220V, 50Hz sine wave).Amakhala ndi inverter mlatho, logic control ndi fyuluta dera.Amagwiritsidwa ntchito kwambiri mu air conditioners, zisudzo kunyumba, mawilo akupera magetsi, zida zamagetsi, makina osokera, DVD, VCD, makompyuta, TV, makina ochapira, hoods osiyanasiyana, firiji, VCRs, massager, mafani, kuyatsa, etc. M'mayiko akunja, chifukwa pamlingo wolowera kwambiri wamagalimoto, inverter ingagwiritsidwe ntchito kulumikiza batire kuyendetsa zida zamagetsi ndi zida zosiyanasiyana zogwirira ntchito popita kuntchito kapena kuyenda.
Inverter ntchito mfundo:
Inverter ndi DC kupita ku AC transformer, yomwe kwenikweni ndi njira yosinthira magetsi ndi chosinthira.Chosinthiracho chimasintha mphamvu yamagetsi ya AC ya gridi yamagetsi kuti ikhale yokhazikika ya 12V DC, pomwe inverter imatembenuza 12V DC voliyumu yotulutsa ndi Adapter kukhala AC yothamanga kwambiri;mbali zonse ziwirizi zimagwiritsanso ntchito njira yosinthira pulse wide modulation (PWM).Gawo lake lalikulu ndi PWM Integrated controller, Adapter imagwiritsa ntchito UC3842, ndipo inverter imagwiritsa ntchito chipangizo cha TL5001.Mphamvu yamagetsi ya TL5001 ndi 3.6 ~ 40V.Ili ndi amplifier yolakwika, chowongolera, oscillator, jenereta ya PWM yokhala ndi zone control yakufa, dera lodzitchinjiriza lotsika komanso gawo lalifupi lachitetezo.
Gawo lolowera:Pali ma siginecha a 3 mu gawo lolowetsa, 12V DC yolowera VIN, ntchito yothandiza magetsi ENB ndi chizindikiro chowongolera cha Panel DIM.VIN imaperekedwa ndi Adapter, ENB voltage imaperekedwa ndi MCU pa bolodi la amayi, mtengo wake ndi 0 kapena 3V, pamene ENB = 0, inverter sikugwira ntchito, ndipo pamene ENB = 3V, inverter ili mu chikhalidwe chogwira ntchito;pomwe DIM voliyumu Yoperekedwa ndi bolodi yayikulu, kusiyanasiyana kwake kuli pakati pa 0 ndi 5V.Makhalidwe osiyanasiyana a DIM amabwezeredwa ku chowongolera chowongolera cha PWM, ndipo zomwe zaperekedwa ndi inverter pazonyamula zizikhalanso zosiyana.Kuchepa kwa mtengo wa DIM, kumachepetsa kutulutsa kwamagetsi kwa inverter.chachikulu.
Gawo loyambira la Voltage:ENB ikakhala pamlingo wapamwamba, imatulutsa ma voliyumu apamwamba kuti iwunikire chubu cha backlight cha Panel.
Woyang'anira PWM:Zili ndi ntchito zotsatirazi: voteji yamkati, amplifier zolakwika, oscillator ndi PWM, chitetezo cha overvoltage, undervoltage protection, short circuit chitetezo, and output transistor.
Kusintha kwa DC:Dongosolo losinthira voteji limapangidwa ndi chubu chosinthira cha MOS ndi inductor yosungirako mphamvu.Kuthamanga kolowera kumakulitsidwa ndi kankhani-chikoka amplifier ndiyeno amayendetsa chubu cha MOS kuti achitepo kanthu, kuti magetsi a DC azilipiritsa ndikutulutsa inductor, kuti malekezero ena a inductor apeze voteji ya AC.
LC oscillation ndi zotuluka:onetsetsani kuti voteji ya 1600V yofunikira kuti nyali iyambe, ndikuchepetsa mphamvu mpaka 800V nyali ikayatsidwa.
Ndemanga zotulutsa mphamvu:Pamene katunduyo akugwira ntchito, voteji yachitsanzo imabwezeretsedwanso kuti ikhazikitse kutulutsa kwamagetsi kwa inverter.
Nthawi yotumiza: Jul-07-2023
