Electronics Help Care Amplifier circuit diagram This is the 2.1 amplifier circuit for the subwoofer. This circuit is for the TDA8580 and TDA8581 ICs. We can use 8 volts to a maximum of 24 volts. The best voltage is 12 to 16 volts. This diagram can make 20watts+40watts+20watts. It’s 2.1 output. 3 inputs and 3 outputs. 2 inputs for surround and another input for the subwoofer.
But this diagram doesn’t have a low-pass filter for the subwoofer. It needs a low-pass filter to make only the bass. The low-pass filter circuit diagram is here
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.
DIY amplifier circuit diagram:
DIY amplifier circuit diagram using tip41 and tip42. This board can produce 20 watts using 12 voltages of 2 amperes. the transistor needs a separator with the heatsink. We can also use other transistors like c2073 and a940.
Type Designator: TIP41
The material of the Transistor is Si
The polarity is NPN
The maximum Collector Power Dissipation is 65W
The maximum Collector-Base Voltage is 80V
The maximum Collector-Emitter Voltage is 40V
The maximum Emitter-Base Voltage is 5V
The maximum Collector Current is 6A
The max operating Junction Temperature is 150 °C
The transition Frequency is 3MHz
The forward Current Transfer Ratio is 20
Type Designator: TIP42
The material of the Transistor is Si
The polarity is PNP
The maximum Collector Power Dissipation is 65W
The maximum Collector-Base Voltage is 80V
The maximum Collector-Emitter Voltage is 40V
The maximum Emitter-Base Voltage is 5V
The maximum Collector Current is 6A
The max operating Junction Temperature is 150 °C
The transition Frequency is 3MHz
The forward Current Transfer Ratio is 20
This circuit doesn’t have speaker protection. here need for a speaker protection circuit. Here is the link to get the speaker protection circuit. Diagram is here
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, 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
