Ib qho zoo tagnrho op-amp muaj xoom tso zis impedance. Qhov no txhais tau hais tias cov zis voltage yog ywj siab ntawm cov zis tam sim no. Yog li qhov zoo tshaj plaws op amp tuaj yeem tsav txhua qhov kev thauj khoom yam tsis muaj qhov tso zis impedance xau hluav taws xob hla nws. Cov ntsiab lus luv luv: input impedance yog "siab" (zoo tagnrho infinite), cov zis impedance yog "tsawg" (zoo tagnrho xoom).
Puas tawm tswv yim muaj siab impedance?
Hauv electronics, siab impedance txhais tau hais tias ib qho taw tes hauv circuit (ib node) tso cai me me ntawm tam sim no los ntawm, ib chav tsev ntawm qhov siv hluav taws xob ntawm qhov taw tes. … Hauv lub tshuab suab, cov tswv yim siab impedance yuav tsum tau siv nrog cov khoom siv xws li siv lead ua microphones lossis lwm yam khoom siv nrog siab impedance.
Dab tsi yog qhov siab impedance?
High impedance yog hu ua 25V, 70V, lossis 100V (feem ntau hu ua 70V). High impedance yog zoo tagnrho rau ntev cable khiav, nrog ntau tus neeg hais lus ib kab. Cov neeg hais lus tsis tshua muaj zog nrog lub zog hloov tau kais. Nws muaj impedance siab outputs nrog tsawg amplifiers yuav tsum tau.
Yim input impedance txhais li cas?
circuit muaj cov zis impedance thiab siab input impedance. … Tsawg tso zis impedance yog xav kom nqus qhov siab tshaj plaws tam sim no los ntawm Circuit Court. High impedance txhais tau hais tias lub voj voog rub lossis muab lub zog me me rau lub teeb liab. low impedance txhais tau tias lub voj voog rub lossis muab lub zog ntau dua rau lub teeb liab
Dab tsi yog qhov kev siv lub siab input impedance?
Ⅱ High Input Impedance thiab Low Output Impedance Effect
Lub siab impedance xyuas kom nws nqus tam sim no tsawg heev. Nws yog lub amplifier txoj haujlwm los hloov lub zog qis, qhov hluav taws xob-tsav hluav taws xob mus rau qhov hluav taws xob ntau dua qhov tso zis teeb liab.
