DIY Class D Audio Amplifier

Amplifier circuit file on EasyEDA: https://easyeda.com/GreatScott/ClassD...

Support me for more videos:   / greatscott  
Previous video:    • TEVO Little Monster 3D Printer Review...  
Class AB Audio Amp video:    • Make your own Low Budget Bluetooth Mu...  
Facebook:   / greatscottlab  
Twitter:   / greatscottlab  
More project information (schematic pictures,....) on Instructables: https://www.instructables.com/id/DIY-...

Thanks to EasyEDA for sponsoring this video.
Free circuit design tool with 200,000 users: https://easyeda.com
$2 for10pcs 2-layer 10x10cm PCB prototype here: https://easyeda.com/order
Wide selection in-stock components: https://lcsc.com

Parts list (Incomplete, see Instructables for Ebay and Amazon.de, affiliate links):
Aliexpress:
1x 3.5mm Audio Jack: https://s.click.aliexpress.com/e/_dYy...
1x 10kΩ Potentiometer: https://s.click.aliexpress.com/e/_dX8...
1x LM393 Comparator: https://s.click.aliexpress.com/e/_d7O...
1x TLC555 Timer: https://s.click.aliexpress.com/e/_dTr...
1x 74HC04 Inverter: https://s.click.aliexpress.com/e/_d8c...
1x IR2113 MOSFET Driver: https://s.click.aliexpress.com/e/_d7S...
2x IRLZ44N MOSFET: https://s.click.aliexpress.com/e/_dWh...
1x 7805 Voltage Regulator: https://s.click.aliexpress.com/e/_dXS...
1x 7812 Voltage Regulator: https://s.click.aliexpress.com/e/_d8O...
2x PCB Terminal: https://s.click.aliexpress.com/e/_dYb...
3x 47µF, 1x 22µF Capacitor: https://s.click.aliexpress.com/e/_d7d...
7x 220nF Capacitor: https://s.click.aliexpress.com/e/_dU4...
3x UF4007 Diode: https://s.click.aliexpress.com/e/_dYR...
2x 10kΩ, 2x 10Ω, 1x 2kΩ Resistor: https://s.click.aliexpress.com/e/_dTP...
2x 33µH Inductor: https://s.click.aliexpress.com/e/_d6A...

In this project I will show you why a class AB amplifier is pretty inefficient and how a class D amplifier on the other hand improves this efficiency. At the end I will show you how we can apply the theory of operation of a class D amp to a couple of common components in order to create our own DIY class D audio amp.

Music:
2011 Lookalike by Bartlebeats
Killing Time, Kevin MacLeod (incompetech.com)