20W桥音频放大器电路 (20W Bridge Audio

20W桥音频放大器电路 (20W Bridge Audio Amplifier)

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