Electronics Help Care Amplifier circuit diagram This is a 2.1 audio amplifier circuit diagram, 25+50+25 watts. This circuit runs with a minimum 12-0-12 voltage to a maximum 25-0-25 voltage. But the best voltage is 15-0-15 to 20-0-20 voltage. This circuit has a stereo input for the surround output. The surround per channel got 25 watts. The left channel is 25 watts and the right channel is 25 watts. The bass output is 50 watts.
here use TDA7256. In stereo mood it makes 25+25 watts output. And the bridge mode makes 50 watts of output. This circuit also needs a low-pass filter to make bass putput.
low pass filter for subwoofer amplifier:
This is the low-pass filter for the subwoofer amplifier. This circuit needs to make a bass amplifier. We also need to make a 2.1,5.1 audio sound system. This board makes only bass. makes only the low part. It has no mid-range or high part. It’s also a pre-amplifier. It’s output mono. Input stereo but output mono. This board runs on 9 volts to 15 volts. It needs a single voltage. For this, we can use this board in the car amplifier.
The surround does not need any equalizer circuit. If we want, we can use it. A pre-amplifier can make the sound stronger.
This is the TDA8571j IC
Only 12voltage used for this IC circuit diagram. No need to make the center tub voltage.
This IC makes 4 outputs for the speaker. The output is 50 Watts, so 4X50=200 Watts.
We know that voltage X ampere = Watts. So 12 volts / 200 watts=16.6 ampere.
You have to use a 12-voltage 16-ampere transformer to get 200 Watts from this IC.
normally this IC is used on a car audio sound system. We know the car battery is a minimum of 35 amperes
Now you can ask How to connect 4 inputs. We see the computer has 3 sockets for the audio system
. Normally, we use 2: one for the speaker output and the middle one, the Green one. and the pink one for
the microphone. But blue one for what? This blue one is also for the audio output device.
We have another post for you. like Amplifier circuit 200 watts
Transistor circuit for an amplifier
Build a Transformer or construct the transformer. Home Theater Circuit Diagram 5.1
Thanks a lot for being with us. If you want another post, then please visit our website.
We have another post for you. like repairing amplifiers. If you like electronics, please visit our other post. electronicshelpcare.com
Our Facebook page is Electronicshelpcare
