He aha te mea he inverter?

He whakawhiti hiko DC ki AC te kaitahuri, he tukanga hurihanga ngaohiko tēnei me te kaitahuri. Ka hurihia e te kaitahuri te ngaohiko AC o te whatunga hiko ki te putanga DC 12V pumau, ko te kaitahuri ia ka hurihia te putanga ngaohiko DC 12V e te urutau ki te AC ngaohiko teitei-auau; e whakamahi ana hoki ngā wāhanga e rua i te hangarau whakarerekētanga whānui pāorooro (PWM) e whakamahia whānuitia ana. Ko te wāhanga matua he kaiwhakahaere PWM whakauru, e whakamahi ana te urutau i te UC3842, ā, e whakamahi ana te kaitahuri i te maramara TL5001. Ko te whānuitanga ngaohiko whakahaere o TL5001 he 3.6~40V, ā, he whakakaha hapa, he kaiwhakahaere, he oscillator, he kaihanga PWM me te mana whakahaere rohe mate, he ara iahiko tiaki ngaohiko iti me te ara iahiko tiaki ara iahiko poto.

Wāhanga atanga tāuru: E toru ngā tohu o te wāhanga tāuru, 12V DC tāuru VIN, te ngaohiko whakahohe mahi ENB me te tohu whakahaere au o te Paewhiri DIM. Ka whakaratohia te VIN e te Adapter, ā, ka whakaratohia te ngaohiko ENB e te MCU i runga i te papahoahoa, ā, ko tōna uara he 0, he 3V rānei. Ina ENB=0, kāore te inverter e mahi, ā, ina ENB=3V, kei roto te inverter i te āhua mahi noa; ā, ka whakaratohia te ngaohiko DIM e te papahoahoa, ā, ko tōna awhe rerekētanga kei waenga i te 0 me te 5V. Ka tukuna ngā uara DIM rerekē ki te pito urupare o te kaiwhakahaere PWM, ā, ka rerekē anō hoki te iahiko e tukuna ana e te inverter ki te kawenga. Ko te iti o te uara DIM, ko te nui ake o te iahiko e tukuna ana e te inverter.

Porowhita tīmatanga ngaohiko: Ina teitei te ENB, ka tukuna te ngaohiko teitei hei whakamārama i te ngongo whakamārama o te Paewhiri.

Pūmana PWM: Kei roto i tēnei ko ngā mahi e whai ake nei: te ngaohiko tohutoro ā-roto, te whakakaha hapa, te oscillator me te PWM, te tiaki ngaohiko nui, te tiaki ngaohiko iti, te tiaki ara iahiko poto, me te transistor putanga.

Tahuritanga DC: Ko te ara iahiko tahuritanga ngaohiko he mea tito mai i te ngongo pana MOS me te inductor rokiroki pūngao. Ka whakanuia te pāoro tāuru e te whakakaha pana-tōia, ka akiaki i te ngongo MOS ki te mahi i te mahi whakawhiti, kia utua ai te ngaohiko DC me te tuku i te inductor, kia taea ai e tetahi atu pito o te inductor te whiwhi ngaohiko AC.

Te wiri LC me te ara iahiko putanga: whakarite kia 1600V te ngaohiko e hiahiatia ana kia tīmata ai te rama, ā, whakaitihia te ngaohiko ki te 800V i muri i te tīmatanga o te rama.

Urupare ngaohiko putanga: ina mahi ana te kawenga, ka whāngaihia te ngaohiko tauira hei whakau i te putanga ngaohiko o te inverter I.

Mahi
Ka hurihia e te inverter te mana DC (pūhiko, pākahiko rokiroki) ki te mana AC (ko te tikanga he 220v50HZ sine, he ngaru tapawhā rānei). Ki te kīanga whānui, he taputapu te inverter e huri ana i te iahiko tika (DC) ki te iahiko tauutuutu (AC). Kei roto ko te piriti inverter, te arorau whakahaere me te ara iahiko tātari.
I te whakarapopototanga, he taputapu hiko te inverter e huri ana i te hiko DC iti-ngaohiko (12, 24 volts rānei, 48 volts rānei) ki te hiko AC 220 volts. Nā te mea ko te hiko AC 220 volts ka whakatikatikaina hei hiko DC hei whakamahi, ā, ko te mahi a te inverter he ritenga kē, nō reira te ingoa. I tēnei wā o te "nekehanga", te tari pūkoro, te whakawhitiwhiti kōrero pūkoro, te whakangahau pūkoro me te whakangahau. I te wā e neke ana, ehara i te mea ko te au hiko tika iti-ngaohiko anake e hiahiatia ana mai i ngā pākahiko, i ngā pākahiko rokiroki rānei, engari ko te au hiko whakawhiti 220-volt hoki, he mea nui i roto i te oranga o ia rā. Ka taea e ngā inverter te whakatutuki i ēnei hiahia.