❖ Vim li cas OPAMP hu ncaj qha txuas txuas siab sib txawv? OPAMP yog hu ua txuas ncaj qha vim cov tswv yim ntawm ib qho OPAMP tau muab tso rau hauv cov tswv yim ntawm lwm OPAMP. Nws yog hu ua high gain differential circuit vim qhov sib txawv ntawm ob lub tswv yim yog amplified.
Dab tsi yog qhov zoo ntawm kev sib txuas ncaj qha amplifier?
Qhov zoo ntawm kev sib txuas ncaj qha amplifier yog raws li hauv qab no. Kev teeb tsa hauv Circuit Court yog yooj yim vim yog siv cov resistors tsawg kawg nkaus. Lub Circuit Court yog tus nqi qis vim tias tsis muaj cov khoom siv txuas nrog kim.
Vim li cas op-amp ua kom nrov AC thiab DC?
3 Teb. Yog, koj tuaj yeem ua kom nrov nrov DC voltage . Ntau lub teeb liab hauv kev siv xws li kub, siab, hnyav, thiab lwm yam, hloov maj mam kom lawv suav tias yog DC. Cov amplifiers uas ua rau cov teeb liab no feem ntau yuav siv op-amps1 kom tsis txhob thiab txhawb cov teeb liab theem.
Vim li cas op amps tsis ncaj ncees?
Peb ua rau lub suab nrov nrov rau tus nqi tshwj xeeb kom cov op-amp tsis txaus (ua kom lub suab nrov tshaj qhov kev txwv qhov hluav taws xob) thiab tso cai rau lub teeb liab kom muaj qhov loj. ntawm ib thaj tsam li ua tau. Nws yog ib qho tseem ceeb heev rau kev tsis ncaj ncees rau lub amplifier ua ntej xa nws cov teeb liab mus rau lub tswv yim ntawm A / D converter.
Tus yam ntxwv ntawm DC amplifier yog dab tsi?
DC yam ntxwv ntawm op-amp
- Input bias tam sim no.
- Input offset tam sim no.
- Input offset voltage.
- Thermal drift.
- · T-network muab cov lus qhia tawm tswv yim zoo li lub network yog ib qho kev tawm tswv yim tawm tsam.
- · Txoj hauj lwm ntawm cov ntaub so yog kho kom nullify lub offset voltage.
