DIY do it yourself
Master classes, instructions, useful tips, recipes.
» » »Triac power controller
Such a simple, but at the same time very effective regulator, can be assembled by almost anyone who can hold a soldering iron in their hands and at least slightly read the diagrams. Well, this site will help you fulfill your desire. The presented regulator regulates power very smoothly without surges and dips.

Scheme of a simple triac controller


Triac power controller

Such a regulator can be used in regulating lighting with incandescent lamps, but also with LED, if you buy dimmable ones. Adjusting the temperature of the soldering iron is easy. You can steplessly control the heating, change the speed of rotation of the electric motors with a phase rotor and many more where there is a place for such a useful thing. If you have an old electric drill, which does not regulate speed, then using this regulator, you will improve such a useful thing.
The article, using photographs, descriptions and the attached video, describes in great detail the entire manufacturing process, from collecting parts to testing the finished product.
Triac power controller

I must say right away that if you are not friends with neighbors, then you can not collect the C3 - R4 chain. (Joke) It serves to protect against radio interference.
All parts can be bought in China on Aliexpress. Prices are two to ten times less than in our stores.
To make this device you will need:
  • R1 is a resistor of about 20 Kom with a power of 0.25 watts;
  • R2 - a potentiometer of approximately 500 Kom, it is possible from 300 Kom to 1 Mohm, but better than 470 Kom;
  • R3 is a resistor of about 3 K, 0.25 W;
  • R4- resistor 200-300 Ohms, 0.5 W;
  • C1 and C2 - capacitors 0.05 MkF, 400 V;
  • C3 - 0, 1 MkF, 400 V;
  • DB3 - dinistor, is in every energy-saving lamp;
  • BT139-600, regulates the current 18 A or BT138-800, regulates the current 12 A - triacs, but you can take any others, depending on what kind of load you need to adjust. The dinistor is also called a diac, the triac is a triac.
  • The cooling radiator is selected from the value of the planned regulation power, but the more the better. Without a radiator, you can adjust no more than 300 watts.
  • Terminal blocks can be put any;
  • Use the breadboard as you wish, if only everything comes in.
  • Well, without a device, as without hands. But solder is better to use ours. Although it is more expensive, it is much better. I did not see a good solder in Chinese.

Triac power controller

Triac power controller

Proceed to the assembly of the regulator


First you need to think about the arrangement of parts in such a way as to install as few jumpers as possible and solder less, then very carefully check the compliance with the circuit, and then all the connections are sealed.
Triac power controller

Triac power controller

Triac power controller

Triac power controller

Triac power controller

Triac power controller

Triac power controller

After making sure that there are no errors and placing the product in a plastic case, you can try it by connecting to the network.
Triac power controller

Triac power controller

Triac power controller

Triac power controller

Triac power controller

Triac power controller

Be very careful when testing. All parts of the circuit are under direct voltage of 220 volts and touching them is very dangerous.
If you completed the assembly correctly, then everything should work right away. The device does not need adjustment and adjustment.

Power regulator test


come back
Comments (17)
  1. Guest Tulak
    #1 Guest Tulak Guests January 20, 2018 20:09
    0
    An interesting article, But it would be very good if you write extremely regulated power.
    Especially as you write ...
    an effective regulator, can be assembled by almost anyone who can hold a soldering iron
    1. Dgek
      #2 Dgek Visitors 22 january 2018 02:52
      1
      With a good cooling radiator, it regulates up to three kilowatts.
  2. Kamerunec
    #3 Kamerunec Guests 23 january 2018 15:23
    1
    I would like to know the type of energy saving in which this triac is installed
  3. Kamerunec
    #4 Kamerunec Guests 23 january 2018 15:24
    1
    Rather, the dinist. Wrong.
    1. Dgek
      #5 Dgek Visitors January 28, 2018 06:50
      0
      The shape of the dinistor is like that of a diode, and the inscription is DB3. There is a penny on Aliexpress.
  4. Ham radio
    #6 Ham radio Guests 24 january 2018 21:24
    0
    And will not buzz light bulbs / soldering irons, etc.?
    1. Dgek
      #7 Dgek Visitors January 28, 2018 06:51
      1
      The silence is utter.
  5. Ham radio
    #8 Ham radio Guests January 29, 2018 12:45
    1
    Buzzing, even buzzing ... I asked the knowledgeable, they said a very "Chinese" triac ...
  6. Guest Oleg
    #9 Guest Oleg Guests June 12, 2018 5:55 p.m.
    2
    Good afternoon. Tell me by the variable resistor - 470 kOhm is the upper recommended limit? ..
  7. Guest Victor
    #10 Guest Victor Guests July 2, 2018 12:10
    0
    Thanks, everything works. Question - is it possible to make a limit to 50-75V with smooth regulation?
    1. You can, choosing the values ​​of R1 b R2.
      #11 You can, choosing the values ​​of R1 b R2. Guests August 1, 2018 8:40 PM
      0
      You can, choosing the values ​​of R1 and R2.
  8. Guest Alexander
    #12 Guest Alexander Guests 5 august 2018 13:16
    0
    Hello! Tell me how to make restrictions of 80-110 volts, with an adjustable step of 1-2 volts?
  9. Guest Valery
    #13 Guest Valery Guests September 10, 2018 2:04 p.m.
    1
    The locomotives are buzzing, but this one is silent, like a fish !!! stuck_out_tongue_winking_eye smirk
  10. Guest Alexander
    #14 Guest Alexander Guests December 3, 2018 16:20
    0
    What is the temperature of a seven-cell without a radiator at a load of 50 watts?
  11. Ham radio
    #15 Ham radio Guests January 7, 2019 10:05 p.m.
    0
    I tried different triacs, but when I connected a 100-watt soldering iron, the heater was buzzing with it. At the maximum and at the minimum it does not hum. So it is with light bulbs and electric stoves.
    1. Guest Alex
      #16 Guest Alex Guests 11 June 2019 03:05 AM
      0
      ANY soldering iron with a spiral will buzz. It is she who is buzzing. But if a soldering iron with a ceramic heating element, there will be no buzz. Yes, and in the electric stove the same spiral.
  12. Guest Pavel
    #17 Guest Pavel Guests March 30, 2019 6:37 a.m.
    0
    Assembled, it works. Regulates from 60 volts, apparently insignificant differences in the values ​​of the resistor (s) from those indicated by the author. In my case, the potentiometer is mounted on a breadboard, the dimensions of the board are the same.

Read also

Error codes for washing machines