Video: DC offset voltage yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
DC offset yog ib qho offsetting ntawm lub teeb liab los ntawm xoom. Lub sij hawm originated nyob rau hauv electronics, qhov twg nws yog hais txog ib tug directcurrent hluav taws xob , tab sis lub tswv yim tau txuas ntxiv mus rau ib qho kev nthuav qhia ntawm lub waveform. DC offset yog lub meanamplitude ntawm lub waveform; Yog hais tias qhov nruab nrab amplitude yog xoom, tsis muaj DC offset.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog txhais los ntawm DC offset voltage?
Cov tswv yim offset voltage () yog ib qho parameterdefining qhov txawv DC voltage yuav tsum tau nruab nrab ntawm cov inputs ntawm lub amplifier, tshwj xeeb tshaj yog ib qho kev ua haujlwm amplifier (op-amp), kom cov zis xoom (rau hluav taws xob amplifiers, 0volts nrog rau hauv av los yog ntawm qhov sib txawv outputs, nyob ntawm seb cov zis hom).
Tsis tas li ntawd, DC offset yog dab tsi hauv kev ua haujlwm generator? Ntau yam kev xeem siv hluav taws xob xav tau a DC offset ntxiv rau qhov tso zis ntawm a functiongenerator . Qhov tshwm sim yog a teeb liab uas yog ib tug waveformsuperimposed rau saum ib DC hluav taws xob.
Raws li, DC offset tshem tawm yog dab tsi?
DC offset yog a txhais tau tias amplitude displacement ntawm xoom. Hauv Audacity nws tuaj yeem pom raws li ib qho offset ntawm qhov ntsuas waveform deb ntawm qhov chaw zero point. DC offsetis lub peev xwm ntawm clicks, distortion thiab poob ntawm audiovolume. Nplooj ntawv no piav qhia qhov ua rau thiab kev phom sij ntawm offset thiab yuav ua li cas tshem tawm nws.
DC offset ntsuas li cas?
Rau ntsuas cov amp DC offset , pib bytouching qhov kev ntsuam xyuas dub ua rau qhov tsis zoo hais lus davhlau ya nyob twg. Tom ntej no, kov qhov kev sim liab ua rau tus neeg hais lus zoo. Tuav ob qho tib si hauv qhov chaw thaum saib kev nyeem ntawv ntawm themultimeter lub ntsej muag.
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