PWM yowongolera gawo imalandira ma voliyumu otulutsa magetsi komanso mayankho apompopompo a dera lalikulu lamakina owotcherera ndi chida chodziwira 

Waya wodyetsa magetsi woyang'anira gawo amayang'anira magetsi a waya wodyetsa mota, ndikusintha liwiro la mota wodyetsa mota kudzera pa waya wodyetsa liwiro loyang'anira gawo

Kuthamanga kwa waya wamagetsi kumasinthidwa ndikuwongolera waya wodyetsa pakali pano. Nthawi yomweyo, kusintha kwa waya wodyetsa magetsi kumabwerera Kwa gawo loyang'anira la PWM, gawo loyang'anira la PWM limayang'anira gawo lalikulu lamakina owotcherera kudzera pagawo loyendetsa molingana ndi kusintha kwa magetsi a mota wodyetsa waya. Kutulutsa kotsekemera kumakhudzidwa ndi waya wodyetsa magetsi. gawo loyendetsa limakweza chizolowezi choyendetsa chomwe chimatumizidwa ndi gawo loyang'anira la PWM ndikuyendetsa zida zamagetsi monga IGBT module ndi MOS chubu zimagwira ntchito molimbika komanso molondola. Nthawi yomweyo, magetsi ndi magwiritsidwe apamwamba amagwiritsidwa ntchito pachida chachikulu chosinthira makina osakanikirana Kutali ndi gawo loyang'anira la PWM. Ntchito ya PWM yowongolera gawo ndikuwongolera magawo amagetsi ndi magetsi omwe amaperekedwa ndi gululi nthawi yomweyo.

Zizindikiro zamakono ndi zamagetsi kumapeto kwa makina owotcherera zimasonkhanitsidwa, kuyerekezera ndikuwerengedwa motsatana, kenako PWM pulse generation generation imayang'aniridwa kuti ipange kugunda koyenera 

Zoyendetsa zimatumizidwa pagawo loyendetsa.

Kuchuluka kwamagetsi kumafunikira. Makina oyang'anira makina owotcherera omwe akutulutsa magetsi ndipo pano amatenga makina otulutsira magetsi mu nthawi yeniyeni mu gawo loyang'anira la PWM Makina oyenerana nawo. liwiro Mphamvu yolumikizira. Makina owotcherera amatha kuwotcheredwa kokha ndikusintha mphamvu yamagetsi yodyetsera waya. Mphamvu yamagetsi yodyetsa waya imasinthidwa ndi potentiometer yopitilira.

Kuthamanga kwa waya kumayendetsedwa bwino kudzera mu resistor R99, ndipo magetsi opangira waya amasinthidwa kudzera mu resistor R33 ndi resistor R35 Zomwe zimasinthidwa pakadali pano zimayenda kudzera mu triode v19 ndi triode V20 kuti isinthe kuthamanga kwa waya. Sinthani kutulutsa kwamagetsi pamakina owotcherera, Nthawi yomweyo, magetsi olowera pamakina oyendetsa waya amasintha momwe zimayendera waya zomwe zimadyetsa mota modemu ul2845 kudzera kukana R49 ndi kukana r48 Lonse kuti mufikire kuwongolera kwamagetsi a waya kudyetsa mota. Mwa njira iyi, kutulutsa kwamphamvu ndi magetsi a waya wodyetsa zimatheka mukasintha kusintha kwa makina owotcherera .The liwiro la waya limasinthidwa nthawi yomweyo, kuti lizindikire kusintha kwamitundu imodzi.

• Mafotokozedwe Akatundu