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» »Very simple powerful amplifier on a chip
I would say that this is just a super simple amplifier containing all four elements and delivering 40 watts into two channels!
4 parts and 40 watts x 2 power output Karl! This is a godsend for car enthusiasts, as the amplifier is powered by 12 volts, the full range is from 8 to 18 volts. It can easily be integrated into subwoofers or speakers.
Everything is available today through the use of a modern elemental base. Namely, the chip is TDA8560Q.

By the way, you can buy it for real pennies here -

This is a PHILIPS chip. Previously, the TDA1557Q was used, on which you can also assemble a stereo amplifier with an output power of 22 watts. But it was later modernized by updating the output stage and the TDA8560Q appeared with an output power of 40 watts per channel. Also analogous is the TDA8563Q.

Circuit car amplifier on a chip


Very simple powerful chip amplifier

In the diagram there is a microcircuit, two input capacitors and one filtering one. A filter capacitor is specified with a minimum capacitance of 2200 μF, but the best solution is to take 4 of these capacitors and parallelize, so you will ensure more stable operation of the amplifier at low frequencies. The chip must be installed on the radiator, the more the better.

Simple amplifier assembly


Very simple powerful chip amplifier

Very simple powerful chip amplifier

You can also increase the number of components in the circuit that increase reliability during operation, but not fundamentally.
Very simple powerful chip amplifier

Five more details were added here, I will explain why. Two 10K ohm resistors will remove the background if long wires go to the circuit. A 27 K ohm resistor and 47 uF capacitor give the amplifier a smooth start without clicks. A 220 pF capacitor will filter out high-frequency noise coming through the power wires. So I recommend to refine the circuit with these nodes, it will not be superfluous.
I also want to add that the amplifier develops full power only at a load of 2 Ohms. At 4 ohms there will be somewhere around 25 watts, which is also very good. So our Soviet acoustics will rock.
Low-voltage, unipolar power supply gives additional advantages: use in car acoustics, at home it can be powered from an old computer power supply.
The minimum number of components allows you to embed the amplifier in exchange for the old, failed, on a chip of other brands.

Watch the amplifier test video



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Comments (12)
  1. Alexey Golovin
    #1 Alexey Golovin Guests November 26, 2017 19:51
    0
    Good afternoon! It’s not clear where the entrance is.
    1. Oleg
      #2 Oleg Guests November 27, 2017 05:02
      1
      On the left there are only two clems and are free. ) This they are. Left and right channels.
  2. Guest Andrey
    #3 Guest Andrey Guests November 26, 2017 20:50
    0
    Input 1 and 13 pins
  3. Danil
    #4 Danil Guests November 26, 2017 21:50
    0
    Alexey, apply inputs to 470uF capacitors,
  4. Alexey Golovin
    #5 Alexey Golovin Guests November 28, 2017 20:07
    1
    Thanks to everyone who responded!
  5. Guest Yuri
    #6 Guest Yuri Guests November 30, 2017 9:57 p.m.
    1
    It doesn't get any easier.For anyone unfamiliar with electronics, manufacturing is available, if only he could use a soldering iron.
    1. Guest Pavel
      #7 Guest Pavel Guests 13 january 2019 08:56
      1
      Believe me, it can be easier. TDA7377 - This is Really Simple. And the power and sound quality are similar to the scheme described in this article.
  6. Guest Sergey
    #8 Guest Sergey Guests December 3, 2017 3:27 p.m.
    1
    Something at the bottom in any way.
  7. Guest Sergey
    #9 Guest Sergey Guests March 31, 2018 15:34
    0
    Everything is great !!!
    Tell me, what signal should be applied to the input to get the declared output power?
  8. Guest Eugene
    #10 Guest Eugene Guests June 4, 2018 18:18
    1
    Good time! The shemka was very interested, but there are not enough skills. How to adjust the volume in this particular circuit? I want to assemble for a computer, it’s not very convenient to adjust the sound with the mouse each time ...
    1. Guest Voldemar
      #11 Guest Voldemar Guests December 7, 2018 18:56
      0
      How can power be given without such defining concepts as the coefficient of nonlinear and other distortions? Radio or just lovers?
    2. Guest Pavel
      #12 Guest Pavel Guests 13 january 2019 09:00
      0
      Any paired potentiometer (variable resistor) 50-100 kOhm.
      We connect the lower legs - common (ground).
      On the upper legs - a signal from a sound source.
      From the middle paws to the microcircuit.

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