audio amplifier – ElectronInjection

Big Girl Audio – Audio Power Amplifier

December 22, 2025 by ElectroBrandon

I became intrigued with the 200W+ audio amplifiers on Amazon for $80 or so on Amazon. I did a little digging and found that some were based on a TI TPA3255 chip. I picked up a few MPN: TPA3255DDV and went to town. I basically lifted this schematic directly from the datasheet so it wasn’t … Read more

Low Power Audio Amplifier

December 22, 2025June 22, 2022 by ElectroBrandon

I needed a low power audio amplifier for my home audio setup. Nothing crazy. I basically wanted to match what a car stereo head unit could do. I didn’t want to fiddle with large power and I wanted something cheap. I had done plenty of PCBs for manipulating audio signals, but I had never tried … Read more