Pada tulisan ini saya bagikan sebuah skema Power amplifier CLASS H buatan INTEGRA yang konon mampu menghasilkan audio hingga 250 Watt dengan menggunakan transistor TOSHIBA 2SC5200 / 2SA1943.

Seri Power amplifier ini adalah INTEGRA 7.1 yang terbit pada era 2000-an.

Penampakan Power ampli LIHAT SINI.


Berikut ini adalah potongan skema dari Power Amplifier INTEGRA 7.1 setelah edit dan pangkas:

Dengan melihat skema di atas,nampak pada sisi kanan ada rangkaian stepper tegangan supplai sebesar 59 Volt simetris.

Dengan tegangan simetris 59 Volt maka memungkinkan bagi power amplifier ini untuk menghasilkan daya hingga 300 watt pada beban 4 Ohm.

Namun karena ada drop tegangan pada power supplai saat sinyal maksimum menjadi 49-50 Volt maka output menjadi drop hingga 250 Watt pada beban 3 Ohm.


yohan Indrawijaya

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