Lub luag haujlwm ntawm qhov nruab nrab zaus transformer feem ntau suav nrog kev xaiv zaus thiab sib txuas.
Kev xaiv zaus: Lub nruab nrab zaus transformer muaj ib tug ruaj resonant Circuit Court nyob rau hauv lub superheterodyne receiver. Qhov no resonant Circuit Court tuaj yeem raug kho kom zoo nyob rau hauv ib qho kev ua haujlwm kom paub meej tias qhov tseeb resonant zaus tuaj yeem ua tiav tom qab lub Circuit Court txuas. Qhov nruab nrab zaus transformer tuaj yeem ua tiav qhov kev ua haujlwm no los ntawm kev hloov qhov chaw txheeb ze ntawm qhov zoo-tuning capacitor lossis cov tub ntxhais sib nqus. Hauv cov ntawv thov tshwj xeeb, xws li nruab nrab zaus amplifier Circuit Court ntawm lub xov tooj cua superheterodyne, thawj kauj ntawm lub nruab nrab zaus transformer thiab cov capacitors C1 thiab C2 tsim ib qho 465kHz resonant circuit raws li lub load ntawm transistors VT1 thiab VT2, yog li ntawd tsuas yog 465kHz. intermediate zaus teeb liab yog amplified, uas plays lub luag hauj lwm hauv kev xaiv zaus.
Coupling: Qhov nruab nrab zaus transformer tsis tsuas yog muaj kev ua haujlwm ntawm kev xaiv zaus, tab sis kuj ua lub luag haujlwm ntawm cov teeb liab coupling. Nyob rau hauv nruab nrab zaus amplifier Circuit Court ntawm lub xov tooj cua superheterodyne, cov zis teeb liab ntawm thawj intermediate zaus amplifier yog txuas mus rau lub thib ob intermediate zaus amplifier los ntawm lub intermediate zaus transformer, thiab cov zis teeb liab ntawm lub thib ob intermediate zaus amplifier yog ua ke mus rau lub theem ntawm nrhiav kom tau. los ntawm lwm qhov nruab nrab zaus transformer, paub txog kev sib kis thiab kev nthuav dav ntawm cov teeb liab.
Tsis tas li ntawd, qhov nruab nrab zaus transformer kuj tseem siv nyob rau hauv cov xov tooj cua semiconductor ua qhov tseem ceeb ntawm kev xaiv ntau zaus. Los ntawm kev kho nws cov tub ntxhais sib nqus los hloov qhov inductance ntawm lub kauj, qhov rhiab heev, kev xaiv thiab passband ntawm qhov nruab nrab zaus teeb liab tuaj yeem hloov pauv. Qhov kev hloov kho no ua rau qhov nruab nrab zaus transformer ua lub luag haujlwm tseem ceeb hauv cov khoom siv hluav taws xob xws li xov tooj cua, optimizing cov khoom siv.