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Amplificator clasa D cu IRS2092


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Ma bate gandu sa incerc o varianta de amplificator cu IRS2092

@FRobert mi-a zis de o schema de pe diyaudio, cea de aici. Din ce am citit acolo neamtu spune ca nu i-a placut operationalul din IRS pentru ca este destul de zgomotos (masurat cu QA400)

I-a redus amplificarea si apoi a pus el la intrare alt operational (OPA2134), il foloseste si ca intrare balansata

Nu inteleg ce face semireglabilul RV101 pe intrarea neinversoare a operationalului din partea de gain, ii seteaza un fel de offset sau ce face mai exact ?

 

LiteAmp.pdf

LiteGain_40V_20141124.pdf

 

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