Cov tub ntxhais kawm siv hluav taws xob thiab hluav taws xob yuav tsum kawm cov ntsiab lus ntawm kev txiav cov kab hluav taws xob, thiab lawv yuav tsum daws cov teeb meem cuam tshuam nrog kev txiav cov kab hluav taws xob. Teeb meem teeb tsa tsis tau ua tiav kom txog thaum koj kos cov yam ntxwv ntawm kev hloov pauv ntawm Circuit Court. Qhov tseeb, ntau cov lus nug cuam tshuam nrog kev txiav cov kab hluav taws xob suav nrog cov yam ntxwv hloov pauv raws li ib feem ntawm cov lus nug ntawd. Teeb duab cov yam ntxwv hloov pauv mus rau ib qho kev hloov pauv tau yooj yim thaum koj nkag siab txog qhov kev ua tiav. Hloov cov yam ntxwv rau qhov yooj yim diode clipping Circuit tau txhais raws li cov phiaj xwm ntawm qhov hluav taws xob nkag (Vinp hauv X axis) V/S tso zis hluav taws xob (Vout hauv Y axis) ntawm qhov Circuit Court.
Cov kauj ruam
Kauj Ruam 1. Nkag siab qhov yooj yim diode clipping circuits kom tiav
Teeb duab hloov pauv tus yam ntxwv rau kev hloov pauv hauv Circuit yog yooj yim, yog tias koj nkag siab lub Circuit Court tag thiab tuaj yeem tau txais nws cov txiaj ntsig yoj.
Kauj Ruam 2. Txheeb xyuas qhov ua haujlwm tawm ntawm lub vojvoog saum toj no
Nkag siab txog cov txheej txheem tsim tawm ntawm Circuit Court. Saib xyuas Vref (siv qhov ntsuas hluav taws xob) kab, uas yog nyob rau hauv qhov zoo X axis hauv cov lus tawm tswv yim, tseem pom tias saum toj no Vref kab, cov zis tau txwv rau Vref hauv cov ntawv tawm suab.
Kauj Ruam 3. Hloov cov yam ntxwv yuav tsum tau tshuaj xyuas rau qhov zoo thiab qhov tsis zoo ntawm qhov hluav taws xob
Txij li cov yam ntxwv hloov pauv tau txhais raws li cov phiaj xwm ntawm Vinp (cov khoom siv hluav taws xob) tiv thaiv Vout (tso tawm qhov hluav taws xob), cov hluav taws xob tawm tswv yim yuav zoo, tsis zoo lossis xoom.
Yog li ntawd, pib qhov kev tshuaj xyuas rau ob hom kev nkag. Ua ib qho kev ceeb toom ntawm qhov tso tawm qhov hluav taws xob tau txais rau cov khoom siv sib xws. Plotting dhau los ua qhov yooj yim yog tias koj pib tshuaj xyuas qhov Circuit Court los ntawm qhov tsis zoo input voltages (txawm li cas los xij, koj kuj tseem tuaj yeem pib txheeb xyuas los ntawm qhov ntsuas hluav taws xob zoo)
Kauj Ruam 4. Txheeb xyuas qhov Circuit Court rau qhov tsis zoo input voltages
Thaum qhov tsis zoo tawm qhov hluav taws xob tau siv rau hauv Circuit Court, diode (Qhov Zoo Tshaj) dhau los ua qhov tsis ncaj ncees. Yog li ntawd, lub Circuit Court qhib thiab tsis muaj cov dej ntws tam sim no hla lub Circuit Court.
Yog li ntawd, qhov hluav taws xob tso tawm ntawm txhua lub ntsiab lus tsuas yog ua raws qhov ntsuas hluav taws xob ntawm qhov ntawd, yam tsis muaj kev hloov kho. Plotting daim duab ntawm Vinp piv rau Vout hauv qhov xwm txheej no ua rau daim duab ntawm kab ncaj nraim muaj txoj kab nqes (txhais tau tias yog tan θ = Δ Vout/in Vinp) ntawm 1 vim tias, raws li Vinp hloov pauv, Vout kuj hloov pauv, tab sis qhov nyiaj hloov pauv hauv Vinp thiab Vout yog qhov sib npaug ntawm txhua lub ntsiab lus, raws li cov zis ua raws cov tswv yim. Yog li Δ Vout = Δ Vinp = a (qee tus nqi), tam sim no tus nqi ntawm tan a = a/a = 1, thiab li no θ = 45 '
Kauj Ruam 5. Txheeb xyuas qhov Circuit Court kom pom tau qhov zoo
Rau qhov ntsuas qhov ntsuas hluav taws xob tsawg dua li Vref, lub diode (Qhov Zoo Tshaj) yog rov qab tsis ncaj ncees. Yog li, lub Circuit Court qhib thiab tsis muaj cov dej ntws tam sim no hla lub Circuit Court.
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Hauv qhov xwm txheej no, kev siv tswv yim tsuas yog cuam tshuam nrog kev tso tawm yam tsis muaj kev hloov kho. Cov kab ntawv yog kab ncaj ncaj los ntawm keeb kwm, muaj lub kaum sab xis ntawm 45 'nrog X-axis (lossis Y-axis). Thaum cov hluav taws xob nkag tau ntau dua Vref, cov diode (Qhov Zoo Tshaj Plaws) dhau mus rau qhov tsis ncaj ncees thiab yog li nws yog luv luv Circuit Court.
Cov zis yuav sib npaug rau qhov loj ntawm Vref. Li no, koj tuaj yeem tau txais kab lus ntawm kab ncaj los ntawm Vref point, uas yog mus tib seem rau X-axis. Txoj kab nqes ntawm txoj kab no yog xoom vim tias, raws li Vinp hloov pauv, Vout tsis hloov, tab sis nws tseem nyob tas li rau Vref. Ntawd yog, tus nqi ntawm Δ Vout = Vref - Vref = 0 thiab tus nqi ntawm Δ Vinp = Vinp2 - Vinp1 = b (qee tus nqi). Yog li tan θ = 0/b = 0
Kauj Ruam 6. Kos tus yam ntxwv hloov
Tom qab txheeb xyuas qhov Circuit Court rau qhov zoo thiab qhov tsis zoo tawm qhov hluav taws xob tag, npaj cov duab. Kev hloov pauv tus yam ntxwv rau saum toj saud yog raws li qhia hauv daim duab. Saib xyuas txoj kab nqes ntawm kab ntawv rau Vinp tsawg dua Vref thiab ntau dua Vref.
Lub tswv yim
- Txheeb xyuas seb qhov muab diode zoo tagnrho lossis tsis yog. Yog hais tias lub diode muab tsis zoo tagnrho, tom qab ntawd txiav txim siab rau pem hauv ntej thiab thim rov qab qhov poob ntawm lub diode.
- Ib txwm xam qhov kev hloov pauv hauv kev tawm tswv yim thiab tso tawm qhov hluav taws xob thiab npaj cov duab. Tsis txhob sau txoj kab nqes ntawm kab lus yam tsis suav.
- Txij li thaum Vinp yog qhov hloov pauv ywj pheej, qhov no tau coj los rau hauv X-axis. Vout nyob ntawm Vinp thiab dhau los ua qhov sib txawv, yog li coj hauv Y-axis.
- Rau qhov xoom tawm qhov hluav taws xob, qhov hluav taws xob tso tawm yog sib npaug rau xoom. Li no txoj kab dhau los ntawm keeb kwm.
- Tsis txhob poob siab los ntawm kev saib Vref hauv Y-axis hauv cov yam ntxwv hloov pauv. Thaum qhov hluav taws xob nkag (hauv X-axis) hla Vref, qhov hluav taws xob tso tawm (hauv Y-axis) dhau los sib npaug rau Vref, yog li ntawd lub ntsiab lus ntawd tau cim ua Vref hauv Y-axis.
