DIY Compact Stereo Amplifier

About: Hi my name is Steve and i'm a Creative and I got Technical skills i can build anything just stick to my account . I'm a YouTuber so you also can see my all videos here https://www.youtube.com/SteveWillsonKujur

Hey! everyone My name is Steve.

Today I'm going to show you How to Make 60 Watt Portable Amplifier in a Very Simple Way using TDA2050 ic it is a very popular ic you can find in many home theatre system it can provide a maximum power of 30 watts at 4 ohms It needs a dual power supply 24 0 24, In this project I've used 2 of it

Click Here to See The Video

Let's Start

Step 1: Features

Output Power

  • 30 Watt x 2 @ 4Ohms

Input Power

  • 16 - 24V DC

Built-in Protection

  • Over Load Protection
  • Short Circuit Protection
  • Over Heat Protection

Note - Please see the images for better understanding

Step 2: Thing I've Used

LCSC

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Banggood

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Amazon

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Aliexpress

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Note - Please see the images for better understanding

Step 3: Circuit Diagram

You can see the circuit diagram to make it easier

Step 4: Sponsor

Today's Article is Sponsored by lcsc.com

They are the Largest Electronics Components Supplier From China Ready to Ship within 4 Hours and they ship World Wide

Note - Please see the images for better understanding

Step 5: PCB Board Designing

I Used EasyEDA To Create my PCB Using the Circuit Diagram Provided by STMicroelectronics and it took me about 2 Hours to Design

You can see I've used XT30 for Speaker output for easy plug and play

You can Download the Gerber Files

Gerber & Circuit Diagram - http://bit.ly/2X15vQG

Note - Please see the images for better understanding

Step 6: Ordering the PCB

Nowa Days it has been very easy to order PCBs and it doesn't cost you much, Yeah you easily do this in a Perf Board but the PCB Looks way better then Perf Board and Very Safe to Work So You can Put little work and money to get Professional Results

For This Project, I've used PCBGOGO Service for Manufacturing my PCB and it took about 24 Hours to Manufacture my PCBs and within 7 Days they Delivered it to my door Steps And the Quality is Just Amazing

Note - Please see the images for better understanding

Step 7: Soldering

I gathered all the components and soldered all the Resistances first, and then Soldered the Capacitors According to the Circuit Diagram and used a Cutter to cut all the extra legs

And then I've Soldered the XT30 Connector

After That, I've Soldered the Main Ic TDA2050 it took me about 30 minutes

Note - Please see the images for better understanding

Step 8: Stands Off

I used 4 stands off to give it some clearance

Note - Please see the images for better understanding

Step 9: Heat Dissipation

I've used a Decent Size Heat Shink for Heat Dissipation it is very necessary to use a Heat Shink Otherwise You'll burn the Chip

And it is very important to use a good quality thermal compound for better heat flow

I applied a little quantity fo thermal compound to TDA2050 IC and tighten it up with heatsink


Note - Please see the images for better understanding

Step 10: Power Supply

I used 2 SMPS each 24V @ 6 Amps giving a total of 48V @ 6 Amps

The SMPS is Connected in Series " It's Called Daul Power Supply "

+24 - 0 - 24 V

You can also use a Transformer Based Power Supply no issues with that

Step 11: Setup and Enjoy

First I've connected the Speakers with XT30 Connector

Second I've connected the 3 Power Supply Cable to the dual power supply

Third I've connected the 2 audio input cable via male header

How just power on the power supply and play the song "Enjoy"

Power Supply

  • Negative - Black Cable
  • Ground - Green Cable
  • Positive - Red Cable

Source Input

  • 1st Male Header - Right Input
  • 2st Male Header - Left Input

Speaker Output

  • 1st XT30 Connector - Right Speaker
  • 2nd XT30 Connector - Left Speaker

Click Here to See The Video

You Just Made It

Thank you for visiting my Instructables Stay tuned for next Projects

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