Dc amandla PWM izicelo zobuchwepheshe, iingenelo kunye nemida

I-Pulse-width modulation yindlela yokulawula umlinganiselo wexesha lezixhobo zokutshintsha i-semiconductor ngokulungelelanisa ububanzi be-pulse okanye ixesha lokulawula umbane ophumayo. Ngenxa yokucinezelwa okusebenzayo kokurekhoda ukucofa, ukusabela okuhle okuguquguqukayo, iingenelo ezibalulekileyo kwi-frequency kunye nokusebenza kakuhle, isetyenziswe ngokubanzi kwii-inverters ze-elektroniki, kwaye itekhnoloji yayo ihambela phambili ngakumbi. Itekhnoloji yokulawula i-PWM isetyenziswa ngokubanzi kwisekethe ye-inverter, enempembelelo enkulu kwisekethe ye-inverter. Okwangoku, i-PWM inverter circuit isetyenziswa ikakhulu kwiisekethe ezininzi ze-inverter. Ngamafutshane, unokuzinzisa ngokulula i-voltage ephumayo.

Isebenza njani iteknoloji yePWM?

Itekhnoloji ye-PWM bubuchule obulawula amandla ombane wokuphuma ngokulungelelanisa ixesha lokuqhuba lokutshintsha. Itekhnoloji ye-PWM idla ngokufezekisa ukutshintshwa kwamandla ngokusebenzisa iisekethe zolawulo. Umjikelo wolawulo ulawula ixesha lokutshintsha ngokusekwe kumahluko phakathi kombane ophumayo kunye nombane onikiweyo ukufezekisa injongo yombane wokuphuma okuzinzile.

Izinto eziluncedo zeteknoloji yePWM

1. I-voltage yemveliso ezinzileyo

Itekhnoloji ye-PWM ilawula ixesha lokuqhuba lokutshintsha ukufezekisa ulawulo oluchanekileyo lombane wokuphuma. Iteknoloji ye-PWM yenza ulawulo lombane oluphumayo luzinze ngakumbi kuneendlela zokulungelelanisa umgca wendabuko, ukuphucula uzinzo kunye nokuthembeka kwemowudi yokutshintsha amandla ombane we-DC.

2. Ukuphucula ukusebenza kakuhle kwamandla

Itekhnoloji ye-PWM yehlisa ilahleko yamandla ngokuguqula i-voltage yegalelo ibe yimiqondiso ye-high-frequency pulse. Ngelo xesha, iteknoloji ye-PWM inokulawula ixesha lokuqhuba lokutshintsha, ukunciphisa ilahleko yokutshintsha kwimo yentambo, kwaye ngaloo ndlela iphucule ukusebenza kakuhle kwamandla.

3. Qonda ii-voltages ezininzi zemveliso

Ngokulawula ixesha lokuqhuba lokutshintsha, iteknoloji ye-PWM inokufikelela kuluhlu olubanzi lombane wokuphuma. Umzekelo, kwizixhobo zamandla ekhompyuter, itekhnoloji ye-PWM inokufikelela kumbane ohlukeneyo wokuphuma, njenge-12V, 5V, kunye ne-3.3V, ukuhlangabezana neemfuno zezixhobo zombane ezahlukeneyo.

4. Ukusebenzisa ukhuseleko lokhuseleko

Itekhnoloji yokumodareyitha ipulse ebanzi ilawula ixesha elikhokelayo lokutshintsha ukufezekisa ukhuseleko lwamandla. Ngokomzekelo, kwizixhobo zombane, iteknoloji ye-PWM inokukhusela ukhuseleko lwezixhobo zombane ngokulawula ixesha lokutshintsha kokutshintsha kunye nokuqhawula ngokuzenzekelayo ukunikezelwa kwamandla xa i-voltage iphezulu kakhulu okanye iphantsi kakhulu.

Unyino lweteknoloji yePWM

1. Ingxolo ephezulu: Itekhnoloji ye-PWM ivelisa izibonakaliso ze-pulse ze-high-frequency, ezivame ukuphazamiseka kwi-electromagnetic kunye nengxolo, echaphazela ukusebenza okuqhelekileyo kwezixhobo zombane.

2. Iindleko eziphezulu: Iteknoloji ye-PWM idinga iisekethe ezikhethekileyo zokulawula kunye nokutshintsha, kwaye kuyabiza.

3. Iimfuno eziphezulu zokutshintsha: Iteknoloji ye-PWM ifuna ukutshintshwa kwesantya esiphezulu. Iibhubhu zokutshintsha isantya esiphezulu zineemfuno eziphezulu zokutshintsha iibhubhu.

Isishwankathelo, iteknoloji ye-PWM yeyona nto isetyenziswa kakhulu kwitekhnoloji yolawulo kwimowudi yokutshintsha unikezelo lwamandla eDC. Ineenzuzo zokuzinza okulungileyo, ukusebenza kakuhle okuphezulu, kunye nokuthembeka okuphezulu. Nangona kunjalo, itekhnoloji ye-PWM nayo inemida yayo. Njengengxolo ephezulu, ixabiso eliphezulu, kunye neemfuno eziphezulu zokutshintsha iityhubhu. Ngoko ke, ukuze kuhlangatyezwane neemfuno zezixhobo zombane ekusetyenzisweni okusebenzayo, kuyimfuneko ukukhetha iteknoloji yokulawula efanelekileyo ngokusekelwe kwiimeko ezithile.