PWM tswj tus qauv tau txais qhov vuam tso tawm qhov hluav taws xob thiab cov lus tawm tswv yim tam sim no ntawm lub hauv paus tseem ceeb ntawm lub taub qab vuam tshuab los ntawm chav ntsuas 

Cov xov hluav taws xob pub hluav taws xob tswj lub zog tswj hwm qhov hluav taws xob ntawm cov hlau pub lub cev muaj zog, thiab kho qhov nrawm ntawm xaim pub lub cev muaj zog los ntawm xaim pub pub ceev tswj lub tsev

Qhov nrawm ntawm lub cev muaj zog tau hloov kho los ntawm kev tswj cov hlau pub mis tam sim no. Nyob rau tib lub sijhawm, kev hloov pauv ntawm xaim pub lub cev muaj zog rov qab los Txog rau PWM tswj tus qauv, PWM tswj tus qauv tswj hwm lub hauv paus tseem ceeb ntawm lub tshuab vuam siv los ntawm tus qauv tsav raws li kev hloov pauv ntawm qhov hluav taws xob ntawm cov hlau pub mis. Cov khoom siv vuam raug cuam tshuam los ntawm cov xaim pub hluav taws xob tswj. lub zog tsav ua kom lub zog hloov kho lub teeb liab xa los ntawm PWM tswj lub zog thiab tsav lub zog hloov khoom siv xws li IGBT module thiab MOS raj ua haujlwm ruaj khov thiab ntseeg tau. Nyob rau tib lub sijhawm, qhov hluav taws xob siab thiab qhov siab tam sim no tau thov rau lub tshuab hluav taws xob tseem ceeb hloov pauv ntawm lub tshuab vuam cais los ntawm PWM tswj qhov qauv. Kev ua haujlwm ntawm PWM tswj tus qauv yog tswj hwm qhov tam sim no thiab qhov ntsuas tsis tau muab los ntawm vaj huam sib luag tib lub sijhawm.

Cov cim tam sim no thiab qhov hluav taws xob ntawm qhov tso tawm kawg ntawm lub tshuab vuam raug sau, sib piv thiab suav ua feem, thiab tom qab ntawd PWM mem tes tsim hluav taws xob tsim hluav taws xob raug tswj los tsim cov mem tes tsim nyog. 

Tus kab mob tsav tau xa mus rau tus qauv tsav tsheb.txawm hloov kho qhov nrawm ntawm cov xaim hluav taws xob, cov xaim hluav taws xob ceev tau teeb tsa ua ntej hauv PWM tswj tus qauv

Yuav tsum tau siv hluav taws xob ntau npaum li cas. Kev tawm tswv yim Circuit Court ntawm lub tshuab vuam siv hluav taws xob tso tawm tam sim no thiab khaws cov vuam siv lub tshuab tso tawm hluav taws xob nyob rau lub sijhawm tiag tiag hauv PWM tswj tus qauv Tsis siv neeg sib xyaw hauv. ceev Cov nyhuv txuas. Lub tshuab vuam tuaj yeem siv tau los ntawm kev kho qhov hluav taws xob ntawm cov hlau pub lub cev. Qhov hluav taws xob ntawm cov hlau pub lub cev muaj zog tau hloov kho los ntawm ntau dua potentiometer.

Cov xov hlau pub nrawm tau zoo los ntawm tus tiv thaiv R99, thiab cov xov hlau pub nkag qhov hluav taws xob tau hloov kho los ntawm tus tiv thaiv R33 thiab tus tiv thaiv R35 Cov hloov pauv hloov pauv tam sim no ntws los ntawm triode v19 thiab triode V20 txhawm rau kho cov xov hlau pub ceev. Kho qhov tso tawm qhov hluav taws xob ntawm lub tshuab vuam, tib lub sijhawm, cov hluav taws xob nkag ntawm cov hlau pub lub cev muaj zog hloov kho cov mem tes tso tawm ntawm xaim pub lub cev muaj zog tswj lub cev module uc2845 los ntawm kev tiv thaiv R49 thiab tsis kam r48 Dav kom mus txog qhov kev tswj hwm cov zis hluav taws xob pub lub cev muaj zog. Txoj hauv kev no, qhov hluav taws xob tso tawm thiab qhov hluav taws xob ntawm cov xaim hluav taws xob tuaj yeem ua tiav los ntawm kev kho qhov tso tawm ntawm lub tshuab vuam .Qhov xaim nrawm tau hloov kho tib lub sijhawm, yog li kom paub qhov kev hloov pauv ib sab.

• Khoom Piav Qhia