20w Bridge Audio Amplifier electronic circuit diagram

Specifications

20W Bridge Audio Amplifier kit, based on the TDA2005 IC, a class B dual audio amplifier, specifically designed for car radio applications etc.
* Power supply - 18 VDC
* Output power - 20 W, 4 Ω
* IC built in Thermal Shut-down, Load dump voltage surge protected
* Terminal pins for connecting left and right audio signal inputs
* Relimate Connector for connecting Potentiometer (POT) for volume adjustment
* Power Battery Terminal (PBT) for easy power supply and speaker connection
* Power-On LED indicator
* Heatsink for IC
* Four mounting holes of 3.2 mm each with nut and stud
* PCB dimensions 63 mm x 65 mm

Schematic

Parts List

PCB

Source: Electronics Lab

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