Electronics Help Care Amplifier circuit diagram tda7294 amplificador 100w:
This is a TDA7294 amplifier, 100 watts. It’s a mono audio amplifier circuit diagram. This circuit diagram can make 100 watts in bridge mode. We can use a minimum 15-0-15 voltage to a 35-0-35 voltage. For stereo mode, we have to use a dual circuit.
Here needs to be dual voltage, positive, negative, and ground voltage. We have to use a good heat sink for the IC.
This is a Stereo amplifier circuit diagram using transistors 2SC5200 and 2SA1943. It’s a dual-channel audio amplifier circuit board. left and right channels. Each channel can make 150 watts of output. We can use a minimum 25-0-25 voltage to 50-0-50 voltage. Here needs AC voltage. We can also use other transistors. any type of PNP and NPN transistors.
- Supply voltage: ±10V to ±40V (dual power supply)
- Output power: ~70W RMS (±35V, 8Ω speaker). Up to ~100W peak.
The circuit diagram is here
The diagram of this circuit is here Download link
This is the Speaker protection circuit diagram. It can protect our Speaker from the burn. If the amplifier has any problems, this circuit can save our soundbox. Normally, when the transistor makes a short circuit, the voltage comes out from the speaker output line, and this circuit protects that voltage. This circuit should not allow direct voltage to be sent to the speaker. This circuit is essential for protecting the speaker
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