Pulse Width Modulation (PWM) yog lub ntsiab lus ntawm "Pulse Width Modulation" hauv lus Askiv, hu ua pulse width modulation. Nws yog cov cuab yeej siv tau zoo heev uas siv cov khoom tso tawm digital ntawm microprocessor los tswj cov analog circuits, thiab tau siv dav hauv ntau yam xws li kev ntsuas, kev sib txuas lus, kev tswj fais fab thiab kev hloov pauv.

Pulse width modulation (PWM) yog ib txoj hauv kev ntawm digitally encoding analog teeb liab theem. Los ntawm kev siv cov txee siab daws teeb meem, lub voj voog ua haujlwm ntawm lub voj voog square yog modulated los encode qib ntawm cov teeb liab tshwj xeeb analog. Lub teeb liab PWM tseem yog digital, vim hais tias nyob rau lub sijhawm twg los xij, lub zog tag nrho ntawm DC fais fab mov yog tag nrho (ON) lossis tsis tiav (OFF). Qhov hluav taws xob lossis qhov tam sim no yog siv rau cov khoom lag luam analog hauv qhov rov ua cov mem tes ua ntu zus ntawm (ON) lossis tawm (OFF). Thaum nws yog nyob rau, nws yog thaum lub DC fais fab mov ntxiv rau lub load, thiab thaum nws tawm, nws yog thaum lub hwj chim mov yog disconnected. Ntev npaum li qhov bandwidth txaus, txhua tus nqi analog tuaj yeem siv tau siv PWM.

Thov ua siab zoo saib thiab nkag siab zoo dua rau peb:

digital inverter 12v