Compare ALL of the UK's leading phone recyclers - Envirofone, Mazuma Mobile & Fonebank

 

 




 
 

Home Projects Audio 20W Audio Amplifier using LM1875

  
 

20W Audio Amplifier using LM1875
author: Rajkumar Sharma

Circuit provided by

Buy this circuit as a kit from Anykits

 

Specifications
 

20W Audio Amplifier kit is based on LM1875 IC.
 

  • Power supply - 48 VDC

  • Output - 20 W, 4 Ω

  • Very low distortion (THD - 0.015%), good channel separation and ripple rejection

  • IC built-in thermal, short circuit protections

  • Internal output protection diodes

  • Terminal pins for connecting input

  • 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 48 mm x 60 mm

 

 

Schematic

 

Parts List

 

PCB

 

Download

Download this circuit in PDF

 
 
 

 

 

 

Search Site | Support us | Advertising | Profile | Books | Gadgets | Add your link here | Contact Us
Elektrotekno.com | Free Schematics Search Engine | Electronic Kits | Mobile Phones


 

  Electronics-lab.com (C) 2002-2009
Any logo, trademark and project represented here are property of their respective owner - [Privacy Policy]