PW28 Dual Power Filter Rectifier Board, HighCurrent 25A FlatBridge Unregulated PowerSupply Board, ACDC Rectifier Filter Module for Audio Power Amplifier DIY Circuit Build

The PW28 dualpower filter rectifier board is a dedicated unregulated ACDC powersupply module mainly built for audio poweramplifier DIY modification. Equipped with highrating 25A flatbridge rectifier chip, this board converts AC alternatingcurrent input into unregulated DC output after rectification and filtering processing, providing stable largecurrent power supply for poweramplifier circuits.

Adopting thickcopper PCB traces, the board lowers internal impedance, reduces voltage loss and heat buildup when handling highcurrent loads. Dualpower filter circuit structure effectively suppresses AC ripple interference, helping improve powersupply purity for audio equipment and reduce background noise of amplifiers.

This is an unregulated powersupply board; output DC voltage changes with input AC voltage and load current. It fits most DIY hifi amplifiers, analog audio circuits and other devices requiring dualgroup power supply. Users need to match appropriate AC transformer according to actual circuitdesign requirements.

Note: This board does not include voltageregulation function. Please strictly match transformer powerrating and wiring polarity during installation. Pay attention to heat dissipation for rectifier bridge under longterm heavycurrent operation. Suitable for electronicmakers and audiohobbyists for amplifier assembly and circuit renovation.