1_watt_power_amplifier

Published:2009/7/20 1:36:00 Author:Jessie | From:SeekIC

1-watt power amplifier. Refer to the table to select the desired voltage gain. In the circuit the AC feedback path is different from the DC path. Resistor R2 is bypassed to ground, taking it out of the AC feedback loop. The voltage gain is determined by the ratio of R4/R1. Another feature of this circuit is that you can introduce bass boost by the selection of capacitor values for C1, C4 and C5. With the values shown in the table at the bottom of the figure, gain performance is as follows: voltage gain is 12, VIN for Po at 1W is 0.4 volt, and bass boost is 3 dB at 150 Hz (courtesy GTE Sylvania Incorporated).



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Amplifier_Circuit/1_watt_power_amplifier.html

Print this Page | Comments | Reading(3)