Amplifier circuit diagram using tda2030
This is an amplifier circuit diagram using tda2030. it’s a mono board. we can get 35 watts from this board. here can use 10-0-10 voltage to 18-0-18 voltage. Dule tda2030 is used in this board. and also need dual voltage positive negative and ground voltage.

This board circuit diagram. we can use this amplifier for the 2.1 sound system. It’s an easy and small circuit diagram with one audio input and one audio output for the 4 ohms speaker.
The minimum Single Supply Voltage is 12V. Typical Single Supply Voltage is 15V,18V. Maximum Operating Temperature is 150°C. Amplifier Type is Class-AB. Output Type is 1-Channel Mono. Maximum Load Resistance is 8Ohm. Maximum Quiescent Current is 60mA@±18V.
The Minimum Dual Supply Voltage is ±6V. Product Length is 10.4mm(Max). The typical Dual Supply Voltage is ±9V,±12V,±15V. The Maximum Dual Supply Voltage is ±18V.
Diagram for this amplifier

This is the Speaker protection circuit diagram. It can protect our Speaker from the burn. if the amplifier has any problem then this circuit can save our soundbox. Normally when the transistor makes a short circuit the voltage comes out from the speaker output line then this circuit protects that voltage. This circuit should not allow any direct voltage to be sent to the speaker. This circuit is essential for protecting the speaker.
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