At Mid-frequencies (piv txwv li 50 Hz txog 20 KHz) Lub voltage nce ntawm lub capacitors yog khaws cia tsis tu ncua ntawm qhov ntau zaus, raws li pom hauv daim duab. Yog hais tias qhov zaus nce, qhov reactance ntawm lub capacitor CC txo qis uas nyhav nce qhov nce. … Vim yog ob yam no, qhov nce tau nyob tas li.
Vim li cas qhov nce qis qis thiab siab zaus thiab qhov tsis tu ncua ntawm nruab nrab zaus hauv cov lus teb zaus ntawm RC txuas ntxiv amplifier?
Ntawm nruab nrab zaus piv txwv li ntawm 50 Hz mus rau 20 KHz, qhov voltage nce ntawm teh ampifier yog tas li. Cov nyhuv ntawm coupling capacitor nyob rau hauv no zaus ntau yog xws li hais tias qhov voltage nce nyob twj ywm uniform. Raws li qhov zaus nce hauv qhov ntau, reactance ntawm CC txo qis uas ua rau nce qhov nce.
Vim li cas qhov nce tseem nyob ntawm MF?
Qhov no yog vim, ntawm qhov tsawg zaus, qhov reactance ntawm coupling capacitor CC yog siab uas ua rau ib feem me me ntawm cov teeb liab rau ob peb ntawm ib theem mus rau lwm. … Vim li no, qhov nce ntawm lub amplifier tseem niaj hnub / tsis tu ncua thoob plaws hauv nruab nrab zaus band.
Qhov nce nruab nrab zaus yog dab tsi?
[′mid ¦frē·kwən·sē ‚gān] (electronics) Qhov siab tshaj plaws ntawm lub amplifier, thaum qhov kev nce no nyob ntawm qhov zaus; rau RC-coupled voltage amplifier qhov nce yog qhov tseem ceeb sib npaug ntawm tus nqi no dhau ntawm ntau qhov ntau zaus.
Nyob rau hauv dab tsi zauscheeb tsam qhov nce ntawm lub amplifier tseem nyob tas li?
Ntawm nruab nrab frequencies xws li nruab nrab ntawm 50 Hz txog 20 KHz, qhov voltage nce ntawm lub amplifier yog tas li.
