Headphone amplifier ngezandla zakho ngemizuzu 15

Njalo Umthandi womculo engenantambo okuqala ngemuva ucwaningo lokuqala yimpumelelo, uzizwa ubumnandi ukunqoba kwakhe, afuna zama ukwenza okuthile manje. Hhayi ithoyizi, kodwa ukusebenza ngempela into egcwele. Ukuze wenze lokhu, ngokuphelele efanelekayo okuzenzela elula embobeni amplifier, okuyinto izandla okunekhono kungenziwa ababebuthene imizuzu embalwa nje.

Ngingalutholaphi isicelo? Okokuqala, inhloso yazo, okungukuthi, ukuba ikhulise isiginali kusuka EZWAKALA noma preamplifier, okungukuthi lapho isignali umsindo ayinamandla, futhi kuyinto engenakwenzeka ukuba ukuxhuma-headphone. Kulokhu, ungenza amplifier embobeni ngezandla zakho.

Okwesibili, kuyasiza njengoba ithuluzi ezengeziwe. Ephathekayo embobeni amplifier kuyinto ngempela esebenzayo ngokuhlola izifunda. Ngoba ngokuvamile kunesidingo ukuthola indawo ukuphula busebenze omusha aqoqene, kodwa akathandi ukusebenza. Ngokwesibonelo, uke wenza okufanayo embobeni amplifier ngezandla zakho. Uzokusiza e search for izimbangela iphutha. Ngalo, ungakwazi ngokushesha okukhulu ukuthola iphuzu lapho isignali iphele. Kuvame lokhu kwenzeka ngenxa trifle: kabi soldered ingxenye, capacitor okuyiphutha, njll Yesilinganiso noma nge umhloli imbangela kungaba nzima ukuthola.

Yenza amplifier embobeni ngezandla zakho ngoba nje mono wesifunda siqukethe izingxenye ezinhlanu kuphela. Kusekelwe phezu TDA7050 chip, obiza ruble 30-80. Kodwa ngicabanga ukuthi Holdings yakho zikagesi, okuyinto bekulungele ukusuka kunoma iyiphi nomdlandla Kulokhu, kukhona chip ezinjalo. It livame ukusetshenziswa ikhasethi abadlali namanye amadivayisi umsindo ekukhiqizweni elula.

On the chip efanayo zingenziwa futhi stereo embobeni amplifier ngezandla zakho. It kuyodingeka wengeze capacitor ezimbili limi phezu okukhiphayo (kungaba olulodwa), futhi kokufaka control ivolumu zingenziwa kusuka ezimbili Resistor onhlobonhlobo.

chip Sheer kuyinto amplifier amandla e zosayizi ojwayelekile izindlu (DIP8). voltage Ukusebenza 1.6 kuya 6 volts. Ibusa amandla amaningi. amandla okukhipha incike supply voltage. Ngo samuntu stereo ngaphansi umthwalo ohms 32 futhi zinamandla ka volts ezintathu phezu okukhiphayo uthola mayelana 130 milliwatts isiteshi ngasinye. Uma ixhunywe ngesimiso somshini ibhuloho e samuntu mono umthamo kabili. Lokukhipha wesifunda ivikelwe short circuit.

Umdwebo wokuhlelwa kwendikimba kunikezwe kuMfanekiso 1. isignali okufakwayo lisetshenziswa ezikhumulweni 1 no-3 futhi ama-headphone 32 ohms axhunyiwe terminals 7 no-8 Ngokusho ezibekiweko ikumodi luvale, umthwalo akufanele kube ohms esingaphansi 32. Ukuze bushelelezi supply voltage uxhumeke kwi-ibhasi capacitors C1 no C2, 100, futhi 0.1 microfarads, ngokulandelana. Resistor R1 - 22 ohms. Nokho, mhlawumbe, futhi bonke incazelo imodeli sethu sokuqala.

Isikimu wesibili ka Figure 3 ngokuvamile sisetshenziswa wosayizi omncane amadivayisi prefabrication. Ukuze sikwenze kube nzima kancane kakhudlwana. Isikimu libonisa yonke imininingwane edingekayo. Figure 2 - isikimu efanayo ukuxhuma izikhulumi. Njengoba ubona, umehluko mncane. I wesifunda izikhulumi capacitors polar asetshenziswa isiteshi ekukhishweni ngakunye, embobeni - emi capacitor ezivamile endaweni uxhumano circuit Ezezindlu kubo.