TDA7294 Class G Power Amplifier Circuit Board PCB 180W HI-FI Stereo Amp with Stepper Sound Audio Systems High Fidelity DIY
The product is a blank PCB. There are no components on the this circuit board.
PCB Features:
-2 Layer PCB
-Material:FR-4,
-Copper Thickness: 1oz
-PCB Surface Finish: HASL with lead
-Colour: Yellow
-Dimensions: 237 x 97 x 1.6 mm
Super quality PCB. Solder pads are corrosion resistant. Soldering quality is very important in audio and high-frequency circuits. Thanks to the quality lead finishing on the Pads on the PCB, the soldering process is high quality. PCB quality greatly increases the operating performance of such circuits.
*Type:Class G Amplifier
*Channel: Stereo
*Output Power: 180W
*Stepper circuit serves to increase the efficiency of the TDA7294 amplifier because it uses 2 power supply voltages, namely low voltage, and higher voltage. So the voltage when standby or output is still below the clip point of the low voltage, the medium used to supply the amplifier is the low voltage. and if it approaches the point of clip, the supply voltage will increase linearly (Class-G Amplifier).
*In the final stepper transistor section, you can use the TIP3055 / 2955, 2SC2922 / 1943, etc.
*The power in this TDA7294 + stepper amplifier circuit can produce up to 180W. Low Voltage supply 12VAC-25VAC Higher voltage supply 32VAC-45VAC.
You can access schematic of the circuit, all the technical details in the video.
Video:
youtube.com/watch?v=Azb8RdaQHiw