Circuit Court muaj pes tsawg leeg

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Circuit Court muaj pes tsawg leeg

Circuit Court muaj pes tsawg leeg

Qhov sib txawv-amplitude configuration yooj yim amplification circuit muaj ib lub teeb liab input siv nruab nrab ntawm lub hauv paus thiab lub emitter, thiab coupling capacitors C1 thiab Ce raug suav hais tias yog luv luv-circuited rau AC teeb liab. Lub teeb liab tso zis yog tawm ntawm lub collector mus rau hauv av, thiab DC tus nqi yog sib cais los ntawm lub coupling capacitor C2, thiab tsuas yog AC teeb liab yog siv rau lub load resistor RL. Lub cascode configuration ntawm lub amplifying Circuit Court txhais tau hais tias lub triode nyob rau hauv lub amplifying circuit yog ib tug cascode configuration.

Thaum lub teeb liab input yog xoom, DC fais fab mov muab DC lub hauv paus tam sim no thiab DC collector tam sim no rau lub triode los ntawm kev tsis ncaj ncees resistors, thiab tsim ib qho DC voltage ntawm peb tus ncej ntawm triode. Vim yog DC thaiv kev ua haujlwm ntawm lub coupling capacitor, DC voltage tsis tuaj yeem ncav cuag cov tswv yim thiab cov zis tawm ntawm lub amplifier Circuit Court.

Thaum lub input AC teeb liab siv rau lub emitter junction ntawm lub triode los ntawm lub coupling capacitors C1 thiab Ce, lub voltage ntawm lub emitter hlws ris ua ib tug superposition ntawm DC thiab DC. Lub teeb liab nyob rau hauv lub amplifying Circuit Court yog ntau nyuaj. Cov cim ntawm txhua lub teeb liab yog raws li nram no: Vim yog tam sim no amplification ntawm triode, ic yog ob peb zaug loj dua ib. Feem ntau, ntev npaum li qhov ntsuas qhov ntsuas hluav taws xob tau teeb tsa kom raug, qhov tso zis hluav taws xob tuaj yeem siab dua li qhov hluav taws xob input. Sijhawm. Tus nqi ntawm AC nyob rau hauv uCE yog ib nrab dhau los ntawm lub coupling capacitor mus rau lub load resistor los tsim ib tug output voltage. Ua kom tiav qhov amplification ntawm Circuit Court.

Nws tuaj yeem pom tau tias DC lub teeb liab ntawm lub collector ntawm triode nyob rau hauv lub amplifying Circuit Court tsis hloov nrog lub input teeb liab, thiab AC teeb liab hloov nrog lub input teeb liab. Thaum lub sij hawm amplification txheej txheem, lub collector AC teeb liab yog superimposed ntawm DC teeb liab. Tom qab lub coupling capacitor, tsuas yog AC teeb liab raug rho tawm los ntawm cov zis. Yog li ntawd, thaum soj ntsuam lub amplifying Circuit Court, txoj kev sib cais AC thiab DC teeb liab yuav siv tau, thiab yuav muab faib mus rau hauv ib tug DC txoj kev thiab AC txoj kev rau kev tsom xam.

Lub hauv paus ntsiab lus sib xyaw

1. Xyuas kom meej tias cov cuab yeej tseem ceeb ntawm lub amplifier Circuit Court ua haujlwm hauv lub xeev amplified, uas yog, nws muaj qhov tsis zoo. Uas yog hais, lub emitter junction yog zoo biased, thiab lub collector hlws ris yog thim rov qab biased.

2. Lub voj input yuav tsum tau teeb tsa xws li cov teeb liab tawm tswv yim ua ke rau cov khoom siv hluav taws xob ntawm lub triode los ua qhov sib txawv ntawm lub hauv paus tam sim no, ua rau muaj kev sib raug zoo ntawm cov triode tam sim no uas dhau los ua kev hloov pauv hauv cov khoom siv tam sim no.

3. Lub voj voog tso zis yuav tsum tau teeb tsa kom ntseeg tau tias lub teeb liab tam sim no tom qab lub transistor yog amplified hloov dua siab tshiab rau hauv daim ntawv ntawm tus nqi (tso zis voltage los yog tso zis tam sim no) yuav tsum tau los ntawm lub load.