Nrog rau kev nce qib ntawm cov thev naus laus zis niaj hnub no, qhov tshwm sim ntawm inverters tau muab ntau yam yooj yim rau txhua tus neeg lub neej, yog li dab tsi yog inverter? Lub inverter ua haujlwm li cas? Cov phooj ywg uas txaus siab rau qhov no, tuaj koom ua ke.
Dab tsi yog inverter:
Lub inverter hloov DC fais fab (roj teeb, roj teeb cia) rau hauv AC zog (feem ntau 220V, 50Hz sine yoj). Nws muaj inverter choj, tswj logic thiab lim circuit. Siv dav hauv cov tshuab cua txias, tsev ua yeeb yam, hluav taws xob sib tsoo lub log, cov cuab yeej hluav taws xob, tshuab xaws, DVD, VCD, khoos phis tawj, TVs, tshuab ntxhua khaub ncaws, ntau hoods, tub yees, VCRs, massagers, kiv cua, teeb pom kev zoo, thiab lwm yam. Nyob rau hauv txawv teb chaws, vim mus rau lub siab nkag mus rau lub tsheb, lub inverter yuav siv tau los txuas lub roj teeb los tsav cov khoom siv hluav taws xob thiab ntau yam cuab yeej ua haujlwm thaum tawm mus ua haujlwm lossis mus ncig.
Inverter txoj haujlwm ua haujlwm:
Lub inverter yog ib tug DC rau AC transformer, uas yog tiag tiag ib tug txheej txheem ntawm voltage inversion nrog lub converter. Lub converter hloov AC voltage ntawm daim phiaj fais fab mus rau qhov ruaj khov 12V DC tso zis, thaum lub inverter hloov 12V DC voltage tso zis los ntawm Adapter rau hauv high-frequency high-voltage AC; ob qho tib si kuj tseem siv cov txheej txheem pulse width modulation (PWM) ntau dua. Nws cov ntsiab lus tseem ceeb yog PWM kev tswj hwm kev sib koom ua ke, Adapter siv UC3842, thiab inverter siv TL5001 nti. Kev ua haujlwm voltage ntau ntawm TL5001 yog 3.6 ~ 40V. Nws yog txawm peem rau nrog ib tug yuam kev amplifier, ib tug regulator, ib tug oscillator, ib tug PWM generator nrog tuag cheeb tsam tswj, ib tug tsawg voltage tiv thaiv Circuit Court thiab luv luv Circuit Court tiv thaiv Circuit Court.
Input interface ntu:Muaj 3 lub teeb liab nyob rau hauv qhov input, 12V DC input VIN, ua hauj lwm pab voltage ENB thiab vaj huam sib luag tam sim no tswj teeb liab DIM. VIN yog muab los ntawm Adapter, ENB voltage yog muab los ntawm MCU ntawm lub motherboard, nws tus nqi yog 0 los yog 3V, thaum ENB = 0, lub inverter tsis ua hauj lwm, thiab thaum ENB = 3V, lub inverter nyob rau hauv ib txwm ua hauj lwm lub xeev; Thaum DIM voltage Muab los ntawm lub rooj tsav xwm tseem ceeb, nws qhov kev hloov pauv yog nyob nruab nrab ntawm 0 thiab 5V. Qhov sib txawv DIM qhov tseem ceeb yog pub rov qab mus rau lub tswv yim davhlau ya nyob twg ntawm PWM maub los, thiab qhov tam sim no muab los ntawm inverter rau lub load kuj yuav txawv. Qhov me dua tus nqi DIM, qhov me dua qhov tso zis tam sim no ntawm lub inverter. loj dua.
Voltage pib Circuit Court:Thaum ENB nyob rau theem siab, nws tso tawm qhov hluav taws xob siab los teeb lub Vaj Huam Sib Luag lub teeb rov qab raj.
PWM Controller:Nws muaj cov haujlwm hauv qab no: sab hauv siv voltage, yuam kev amplifier, oscillator thiab PWM, overvoltage tiv thaiv, undervoltage tiv thaiv, luv Circuit Court tiv thaiv, thiab tso zis transistor.
DC conversion:Kev hloov hluav taws xob hloov hluav taws xob yog tsim los ntawm MOS hloov raj thiab lub zog cia inductor. Lub input mem tes yog amplified los ntawm lub laub-rub amplifier thiab ces tsav lub MOS raj los ua switching action, thiaj li hais tias DC voltage tsub thiab tso tawm inductor, thiaj li hais tias lwm kawg ntawm inductor tau txais AC voltage.
LC oscillation thiab tso zis Circuit Court:xyuas kom lub 1600V voltage xav tau rau lub teeb pib, thiab txo qhov voltage mus rau 800V tom qab lub teeb pib.
Tawm tswv yim voltage:Thaum lub load ua haujlwm, cov qauv ntsuas hluav taws xob tau rov qab los txhawm rau txhim kho qhov hluav taws xob tawm ntawm lub inverter.
Lub sij hawm xa tuaj: Plaub Hlis-07-2023
