Lub hauv paus ntsiab lus ua haujlwm thiab cov ntsiab lus tseem ceeb ntawm kev siv hluav taws xob hloov hluav taws xob siab
Ua hauj lwm hauv paus ntsiab lus ntawm high-power switching fais fab mov
1. AC fais fab input yog rectified thiab lim rau DC;
2. Tswj lub raj hloov los ntawm lub siab zaus PWM (mulse width modulation) teeb liab, thiab ntxiv DC mus rau thawj qhov kev hloov pauv hloov;
3. Lub high-frequency voltage yog induced los ntawm theem nrab ntawm lub switching transformer thiab nkag mus rau lub load los ntawm rectification thiab filtering;
4. Cov khoom tso tawm yog pub rov qab mus rau qhov kev tswj xyuas los ntawm ib qho kev sib txuas los tswj PWM lub luag haujlwm piv, thiaj li ua tiav lub hom phiaj ntawm cov zis ruaj khov.
5. Feem ntau, thaum AC lub zog nkag, nws yuav tsum dhau los ntawm lub voj voog thiab lwm yam los lim tawm qhov cuam tshuam ntawm lub hwj chim-tawm network, thiab tib lub sijhawm, nws kuj lim tawm qhov cuam tshuam ntawm cov khoom siv hluav taws xob ntawm daim phiaj hluav taws xob. ;
6. Nyob rau tib lub zog, qhov siab dua qhov hloov zaus, qhov me me ntawm qhov hloov pauv hloov pauv, tab sis qhov siab dua qhov yuav tsum tau ua rau lub raj hloov pauv;
7. Qhov thib ob ntawm qhov hloov pauv hloov pauv tuaj yeem muaj ntau qhov windings lossis ib qho winding tuaj yeem muaj ntau yam kais dej kom tau txais cov khoom tsim nyog;
8. Feem ntau, qee qhov kev tiv thaiv Circuit Court yuav tsum tau ntxiv, xws li tsis muaj load thiab luv luv-circuit tiv thaiv, txwv tsis pub lub switching fais fab mov yuav raug hlawv.
Basic muaj pes tsawg leeg ntawm high-power switching fais fab mov
Lub zog hluav taws xob siab yog tsim los ntawm lub zog hluav taws xob loj, PWM tswj Circuit Court, ib leeg-chip microcomputer tswj Circuit Court thiab auxiliary fais fab mov.
Main zog Circuit Court
Impulse tam sim no limiting: txwv cov impulse tam sim no nyob rau sab input thaum lub sij hawm lub hwj huam mov qhib. Input lim: nws txoj haujlwm yog lim cov clutter uas twb muaj lawm nyob rau hauv daim phiaj fais fab thiab tiv thaiv cov clutter generated los ntawm lub tshuab no tsis pub rov qab mus rau hauv daim phiaj fais fab.
Rectification thiab filtering: AC fais fab mov ntawm daim phiaj hluav taws xob yog ncaj qha rectified rau DC zog smoother.
Inverter: Hloov cov DC rectified rau hauv high-frequency AC, uas yog ib feem ntawm high-frequency switching fais fab mov.
Output rectification thiab filtering: muab qhov ruaj khov thiab txhim khu kev qha DC fais fab mov raws li qhov yuav tsum tau ua.
PWM Control Circuit
Ntawm qhov tod tes, piv txwv los ntawm cov zis kawg, muab piv nrog cov nqi teev, thiab tom qab ntawd tswj cov inverter, hloov nws cov mem tes dav lossis mem tes zaus, thiaj li ua kom cov zis ruaj khov; ntawm qhov tod tes, raws li cov ntaub ntawv muab los ntawm kev ntsuas Circuit Court, kev tswj xyuas Circuit Court yog muab los ua kom muaj ntau yam kev tiv thaiv kev tiv thaiv rau cov khoom siv hluav taws xob tom qab raug txheeb xyuas los ntawm kev tiv thaiv Circuit Court.
Ib nti microcomputer tswj Circuit Court
Ib qho nti microcomputer siv ADC los ua piv txwv cov zis voltage thiab tam sim no, thiab tswj kev hloov pauv ntawm cov zis hluav taws xob thiab tam sim no los ntawm DAC cov zis, thiab saib xyuas lub xeev khiav ntawm tag nrho cov fais fab mov, thiab yog lub luag haujlwm rau kev sib txuas lus txuas ntxiv nrog lub computer.
auxiliary fais fab mov
Paub txog cov software (remote) pib ntawm lub hwj huam mov, thiab muab lub zog rau kev tiv thaiv Circuit Court, tswj Circuit Court (PWM thiab lwm yam chips) thiab ib nti microcomputer.
