Class-D amplifier
Help me by sharing this post

←PREVIOUS POST       NEXT POST→

Author: Andrei
18/03/2019
Class D amplifiers, first proposed in 1958, have become increasingly popular in recent years. In a conventional transistor amplifier, the output stage contains transistors that supply the instantaneous continuous output current. The many possible implementations for audio systems include Classes A, AB, and B. Compared with Class D designs, the output-stage power dissipation is large in even the most efficient linear output stages. This difference gives Class D significant advantages in many applications because the lower power dissipation produces less heat, saves circuit board space and cost, and extends battery life in portable systems.

And if you want to order your boards, use JLCPCB.com and select your color.




Wahyu Eko Romadhon YouTube channel show us his own design of a PCB for a class D amplifier. He show us how he made a super power amplifier class-d D4K5 with 6x N-Channel Mosfet final transistor, and how to make the coil core for LPF stage class-D Amp. Power Output 1000W upto 2000W with compatible power supply.

We can first see the PCB he ordered from JLCPCB. We give a quick inspection at this 23 by 8.5cm board. He starts by soldering all small components such as resistors and small capacitors. Then he adds the big capacittors, both polarized and non-polarized. After that, on the bottom side he solders 6 power mosfets that will do the amplifing process. Another step is calculating and placing the coil and adding thre logic ICs.


Finally, when the small components, the logic ICs, the MOSFETs and the coil is palced, he gives us a test using a double polarity AC power supply of 90 and -90 volts. The board is very powerfull, up to 2000W he says. It also looks nice, a pretty decent design. To keep the MOSFETs cool on the bottom side there is a huge heat dissipator for the entire board. See more on his channel. Thanks!

If you like his board and you also need PCBs, consider using the services of our sponsor JLCPCB.

Consider supporting ELECTRONOOBS on PATREEON.







Help me by sharing this post

←PREVIOUS POST       NEXT POST→





yt_link
insta_link
fb_link
twitter_link
Blog#52 - Class-D amplifier


Last tutorial - RADIO CONTROLLER
Check here my last tutorial. I hope that you will like it. Keep up you guys!

last tutorial


ADVERTISERS
PCBWAY PCB service





Gearbest Alfawise U30 2.8 inch Touch Screen DIY Desktop 3D Printer - U30 EU Plug Black
Alfawise U30 2.8 inch Touch Screen DIY Desktop 3D Printer - U30 EU Plug Black only $$162.89

AFFILATE

Gearbest Creality3D CR - 10S 3D Printer - EU Plug Upgrade Version Coffee and Black
Creality3D CR - 10S 3D Printer - EU Plug Upgrade Version Coffee and Black only $$352.94

Gearbest Creality 3D Ender-3 V-slot Prusa I3 DIY 3D Printer Kit 220 x 220 x 250mm Printing Size - EU Plug Black
Creality 3D Ender-3 V-slot Prusa I3 DIY 3D Printer Kit 220 x 220 x 250mm Printing Size - EU Plug Black only $$153.84

Gearbest Alfawise U20 Large Scale 2.8 inch Touch Screen DIY 3D Printer - EU - U20 EU Plug Black
Alfawise U20 Large Scale 2.8 inch Touch Screen DIY 3D Printer - EU - U20 EU Plug Black only $$253.39