Mini-Amplificador para iPod



3 Watt HI-FI Stereo Amplifier




2010-08-22 13:21 Source:Internet Writer:elecpod Click: 143​



Description
Tr1 and Tr2 transistors functions as direct coupled voltage amplifiers. R6 resistor, D1 and D2 diodes determine the standby current of complement driver stage (Tr3/Tr4) and output stage (Tr5/Tr6). C3, C5, C6 and R3 help keeping stability. Amplifier's input sensitivity is 400mA at 4 ohm load and 12V supply and 600mV at 8 ohm load and 17V supply.
Gain can be increased by decreasing R4 value but it is not recommended because of increasing distortion.
Notes
Speaker's ground must be connected directly to the ground of supply stage and must be kept away from the circuit.
Separate supply connections must be applied to the supply connection points.
 
Hola gente, si sirve de consuelo para los que no pudieron hacer funcionar el TDA2822, yo armé uno para amplificar auriculares y funcionó a la primera. Seguí al pié de letra el PCB que figura en el datasheet.

Un saludo!
 
:) otro esquema a sus amables consideracion con el tda1519, saludos
disculpen al repetir el archivo, el segundo esta mas completo, gracias por su comprension saludos (error de dedos)
 

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