Almost all color music devices of sufficient power are designed for the use of conventional incandescent lamps. There are also CMU circuits on LEDs on the Internet, but they are usually for low-power LEDs. How to connect 50-100 watt LEDs to such a device? You can take as a basis one very good color music scheme (also with sound control via a microphone) and modify it slightly output part- get the desired result.
CMU circuit for high-power LEDs
Schematic diagram of the CMU for 220V 
Schematic diagram of the CMU for 12V 
The electrical power supply for the input part of the frequency processing is made on a piece of a universal board. The transformer was taken from some kind of radio. It is ideal because it is symmetrical and has 10V windings. BT151/600 thyristors were used as powerful switches, with a margin so that they would not burn out from high currents.
The circuit can be made completely isolated from the network if the executive part is used using triacs and optocouplers.
When testing, temporarily install resistors of rated resistance and power from 10 W instead of LEDs.
CMU with 12 V LED strips
If you want to use 12 V LED strips in the CMU direct current, then you can power the entire circuit with the same 12 volts from the pulse network driver, and assemble the output part using powerful field-effect transistors.
A version of the diagram is shown above. Here resistor R2 sets the current limiting of the LED strip (or a powerful single LED).
By the way, when installing individual high-power LEDs, for example 100 watts (32 V at 3 A), supply the supply voltage from the driver through the LED to the drain field effect transistor(after making sure from the datasheet that it can withstand such U/I parameters), and use the resistor indicated above to set the desired current level.
The body is made of wood (easier to find the material and easier to process). The holes for the lamps are drilled with large cutters. Naturally, on the front there are all the necessary knobs for adjusting signal levels and HF-MF-LF channels and a power button.
simple scheme of color music using 220V lamps
Everyone knows and almost everyone assembles this device that flickers and blinks to the music - color music. On the Internet, many search for color music schemes using various queries and they are different everywhere. I present to your attention the diagram below appearance which you see in the pictures. And so, circuit of working color music for 220 Volts on teristors
A simple color scheme
It will require the bare minimum of parts.
We buy colored incandescent lamps 220V
Considering that the output stage of the color music is made of thyristors, it has high power. If thyristors are placed on heat sinks, then each channel can be loaded with 1000 watts. But for a home, 60-100 watt lamps are quite enough.
Drawing of a printed circuit board for light and music
I did not use laser-iron technology for such a simple board design. I simply printed the image as a mirror image and placed it on the foil.
To prevent the paper from moving, we secure it with tape or something else and mark the places of future holes
We paint the tracks themselves with nitro paint
Any transformer from a Chinese power supply, whether from a radiotelephone or something else, will be suitable as a transformer.
And look at the completely soldered board
We attach the cartridges to the aluminum corner
In addition to the photo sent
The inexhaustible potential of LEDs has once again been revealed in the design of new and modernization of existing color and music consoles. 30 years ago, color music, assembled from multi-colored 220-volt light bulbs connected to a cassette recorder, was considered the height of fashion. Now the situation has changed and the function of a tape recorder is now performed by any multimedia device, and instead of incandescent lamps, super-bright LEDs or LED strips are installed.
The advantages of LEDs over light bulbs in color music consoles are undeniable: a wide color gamut and more saturated light; various design options (discrete elements, modules, RGB strips, rulers); high speed triggering; low power consumption.
How to make color music using a simple electronic circuit and make the LEDs blink from the source audio frequency? What are the conversion options? sound signal exist? Let's look at these and other questions using specific examples.
- See also how to do
Color music using KT805AM transistors (3-channel)
First we present to your attention 12V color music with KT805AM transistors.
This color music uses a minimum of parts: 6 resistances with a nominal value of 100 Ohms, capacitors of 5 nominal values, 3 KT805AM transistors.
You can also use other KT brand transistors, ours is KT829.
This color music for the home was assembled by hanging installation, since there are few parts, but you can download it below printed circuit board color music for 2 channels (stereo)
Necessary radio components for assembling color music with your own hands:
- 3 bipolar transistors (VT1–VT3) - KT805AM (KT829).
- Electrolytic capacitors - C1 100 μF, C2, C3 4.7 μF, C4 47 μF, C5 22 μF, C6 1 μF.
- 6 resistors (R1–R6) - 100 Ohm.
- LED (LED1-LED3) - 12V.
Instead of resistors R4–R6, you can use 10 kOhm variables, and instead of LEDs, you can use an LED strip.
Color music circuit for the home using transistors:
Here is a photo of the board:
To operate this color music, you will need a preamplifier; you can use the Vega10u-120s amplifier as it, connect it to the speaker outputs.
You can download the printed circuit board for color music (3 colors, 2 channels) below:
Files for download:
How this color music, assembled with your own hands, works, see below:
Do-it-yourself color music with LEDs
This light and music installation creates a visual effect on a home Christmas tree or at a disco. With the first chords of music, the LED garlands light up with multi-colored tints.
The operation of the circuit is based on the principle of frequency division of the audio signal in channels, different frequencies matches the color of the LEDs. To eliminate the flickering effect and reduce eye fatigue, a backlight channel has been introduced, which is turned off when the blue channel is turned on.
The device circuit consists of three light and music channels: low frequency - red, medium frequency - green and high frequency - blue. The input circuits are equipped with signal level regulators, the setting mode of which determines the brightness of the garlands.
The input signal level can vary from 0.5 to 3 volts. Additionally, for convenience, an input signal level regulator is installed.
- Step-by-step instructions for making your own
Diagram of a light and music installation using LEDs:
The key devices are thyristors. External signal with level differentiation is supplied to the upper or lower input (line or radio). The signal through the brightness control R9 and capacitor C3 is supplied to the input of the amplifier on reverse conduction transistor VT1. The amplifier provides automatic signal limitation with diode VD1. Exceeding the signal at the base of transistor VT1 leads to the opening of diode VD1 and shunting of the base-emitter junction.
The signal taken from the collector of transistor VT1 is supplied for distribution to the input channel level regulators - resistors R1. Next, the signal goes to channel filters with frequency divisions of 50–200 Hz, 250–1000 Hz, 1200–5000 Hz.
After frequency division, the signals arrive at the input preamplifiers on thyristors VS1. Resistors R3 allow you to adjust the sensitivity of the input thyristors due to the variation in characteristics.
The amplified signal from the load R5 of the cathode VS1 is supplied to the control electrode of the power amplifier using thyristors VS2. LED garlands HL1–HL21 are included in pairs in the anode circuit of the output thyristor, ten pieces in two parallel lines. Limiting resistors R6, R7 (R17, R18 in the backlight) are also installed in the LED lines.
The backlight channel is composed of one thyristor VS3 and is controlled from the anode of the output thyristor of the blue channel.
The power supply of the pre-amplifier and output channels is separate - the pre-amplifier is powered by a full-wave rectifier on diode bridge VD3 and then through resistor R16 and diode VD2 in reverse connection.
Diode VD2 prevents the channel thyristors from being shunted by a constant voltage smoothed by capacitor C4. The channels of the light and music installation are powered pulse voltage from rectifier VD3.
The T1 power transformer is installed with low power (no more than 20 watts) from a Chinese adapter. Of course, with a possible replacement LED garland for light bulbs, the power of the transformer will have to be increased five times.
Setting up this color music for the home involves selecting the initial signal levels on each channel. It is advisable to apply a signal from the generator, and then select capacitors C1, C2 to match the channel bandwidth.
- See also how to make it yourself
List of radio elements for channel 1 (red):
- 21 red LEDs (HL1–HL21).
- 2 film or ceramic capacitors - C1 0.1 µF and C2 0.05 µF.
- Resistors - R2 1 kOhm; R4 8.2 kOhm; R5 1 kOhm; R6, R7 57 Ohm.
- Thyristors and triacs (TS1, TS2) - KU102B (KU101B) and KU102G (KU101G).
- 21 green LEDs (HL1–HL21).
- Variable resistor (R1) - 10 kOhm.
- Trimmer resistor (R3) - 100 kOhm.
- Thyristors and triacs (TS1, TS2) - KU102B (KU101B) and KU102G (KU101G).
- 21 blue LEDs (HL1–HL21).
- 2 film capacitors - C1 0.1 µF and C2 0.05 µF.
- Variable resistor (R1) - 10 kOhm.
- Trimmer resistor (R3) - 100 kOhm.
- Resistors - R2 1 kOhm; R4 8.2 kOhm; R5 1 kOhm; R6, R7 56 Ohm.
- 21 orange LEDs (HL1–HL21).
- Thyristor and triac (TS3) - KU102G (KU101G).
- Bipolar transistor (VT1) - KT312B or KT315.
- 2 diodes (VD1, VD2) - KD512A (KD106, KD512B or other low-power).
- Diode bridge (VD3) - KTs407A.
- Transformer (T1) - 12V 1A (can be 2A or higher).
- Film capacitor (C3) - 1 µF.
- 2 electrolytic capacitor(C4, C5) - 10 µF x 16V.
- Variable resistor (R9) - 10 kOhm.
- Trimmer resistor (R14) - 10 kOhm.
- Resistors - R8 100 kOhm; R10 180 kOhm; R11 10 kOhm; R6, R12 1 kOhm; R13 100 Ohm; R15 1 kOhm; R16 560 Ohm; R17, R18 56 Ohm.
| Name | Type | Replacement | Note |
| Transistor VT1 | KT312B | KT315 | NPN |
| Resistors R1–R18 | MLT 0.125 | S2-29 | - |
| Thyristors VS1–VS3 | KU101B | KU101G | 1 Ampere |
| Resistor R3 | CPO | - | - |
| Diode VD1, VD2 | KD 512B | KD 106 | - |
| Transformer T1 | Chamber of Commerce and Industry | TN | 12V 1 Amp |
| Resistor R1, R9 | SPO | SP-3 | - |
It should be noted that in the diagram all three channels have the same names of parts, since they are identical, except input filters. The number of channels can be increased by making two boards, which makes it possible to complement the colors.
The circuit is assembled on a printed circuit board and installed with a transformer in a plastic block BP-1. The garlands are arranged at your own discretion and connected to the device circuit with a thin stranded wire insulated with a diameter of 0.24 mm.
Color music scheme for the home - small-sized color music device
The described design of the color music device is intended for use in conjunction with a portable radio receiver VEF-201 (or similar). Thanks to the location of the screen on the front wall next to the loudspeaker, the basic principle of color music is fulfilled: color is organically associated with sound and displays it. The use of a special dispersion system made it possible to place incandescent lamps almost directly in front of the screen. In addition, the emitter-screen system is a detachable design, which greatly simplified the entire installation.
The operation of this color music device is based on the division of the sound range into three frequency subranges: low, medium and high frequencies. It is also possible to split it into 4 sub-bands, but in this case the circuit and printed circuit board should be slightly changed, as well as the location of the lamps in front of the screen.
The color music device consists of 3 main blocks:
- a pre-amplifier on transistors T1 and T2, necessary to amplify the audio frequency taken from the low-frequency detector;
- three filters on the TZ transistor;
- three power amplifiers assembled using similar composite circuits (in Fig. 1 - on transistors T4 and T5).
Depending on the transmitted frequencies (selected number of channels) in the filter of each channel, the capacitances of capacitors C3–C5 have ratings that are indicated in the table below:
| Color | 1- C, µF | 2 - C, µF |
| Red | 0.1 | 0.1 |
| Green | 0.03 | 0.047 |
| Blue | 0.01 | 0.01 |
| Green | - | 0.022 |
Diode D1 is necessary to highlight the negative component at the input of the power amplifier so that transistor T4 is always open. The signal is supplied to the input directly from the low-frequency detector of the receiver.
Schematic diagram of color music for DIY installation:
- To turn off the power to the device, use the key switch B1, located on top of the receiver.
- Resistors used in the design (ULM or MLT) - 0.125.
- Electrolytic capacitors - type K50-6.
- Transistors and diodes, with the exception of transistor T5, can be used at any low frequency.
- Lamps L1 - 2.5 V, 75 mA. It is possible to use microlamps with a voltage of 9 V, but in this case the power consumption will increase by 1.5 times, and the sensitivity will decrease by 1.3 times.
Required radioelements:
- 5 bipolar transistors- 1 T1 MP40 and 4 T2–T5 MP16.
- Diode (D1) - D220.
- Resistors - R1 620 kOhm, R2, R5 10 kOhm, R3 7.5 kOhm, R4 470 kOhm, R6 5.1 kOhm, R7 4.7 kOhm, R8 220 kOhm, R9 3.3 kOhm, R10 2 kOhm, R11 2.2 kOhm, R12 62 kOhm.
- 2 electrolytic capacitors (C1, C2) - 5 µF 10V and 10 µF 10V (K50-6).
- 4 capacitors C3–C5 - 0.1 µF for the red filter, 0.03 µF for the green filter, 0.01 µF for the blue filter, 0.047 µF for the yellow filter.
- Incandescent lamp (L1) - 2.5V 75mA.
Thanks to two layers of tubes with a diameter of 1–1.5 mm, located perpendicular to each other, colors are scattered over almost the entire screen area. It should also be noted that the light hits only the screen and is not visible on the scale of the radio receiver, as a result of which the design of the emitter-screen system is significantly simplified.
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- We remove the chrome strips and decorative mesh from the receiver body.
- From the left end of the bar we shorten it by 10 cm, and the mesh by 9.5 cm, after which we bend 0.5 cm of the mesh outward at a right angle (this end will form one of the edges of the screen frame).
- We select all the excess plastic on an area of 10x10 cm with a soldering iron tip, trim the edges, after which we insert the shortened mesh and strip into their original places.
- We glue a 10x10 cm plate of 3 mm thick organic glass into the resulting square.
- Next, we fill the scattering layers with glass tubes or rods with a diameter of 1–1.5 mm.
- We do not glue the first layer (vertical) to the body, but insert the tubes with noticeable force close to the organic glass plate.
- We place the second layer (horizontal) on top of the first and glue it to the body.
- We fix the lamps in the existing round holes on the back of the radio power compartment. This is reflected in Figure 3.
- First, we place thin foil under them, and after installing the lamps, we seal these holes with light filters.
- We connect the terminals of the lamps to the power amplifier board with a PEL 0.2 wire.
From a thin sheet of duralumin we cut out 2 plates measuring 5x15 mm, in which we drill two holes with a diameter of 3 mm. This is reflected in Figure 4.
After the plate we bend it at a right angle. Using these corners, we attach the printed circuit board to the two screws that secure the loudspeaker. The board will thus be located at the bottom of the radio, with the parts inside the chassis.
Power amplifiers are assembled on a separate board measuring 60x25x2 mm. This board is glued to the radio circuit board and to the chassis, as shown in Figure 5. The same figure shows the location of the printed circuit board on the radio chassis.
Appearance of the device
The push-button power switch is made from a switch from table lamp. It is attached to the KPI block. Its location relative to the elements of the radio receiver is shown in Figure 6.
Setting up a color music device comes down to selecting the optimal modes of all stages and passbands of three filters.
- Using resistor R1 we set the collector current of transistor T1 to 0.3 mA.
- Using resistor R4 we select the collector current of transistor T2 equal to 0.5–0.8 mA.
- We set the filter gain to be the same for all 3 channels.
- We select the filter bandwidth using resistors R10 and R11, instead of which we install a potentiometer during setup.
- Finally, in the silent mode of the receiver, we select resistor R12 so that lamp L1 is on the threshold of lighting up.
Video about creating color music for your home with your own hands:
We all want a holiday from time to time. Sometimes you want to be sad or experience other emotions. The simplest and effective method achieve the desired result - listen to music. But music alone is often not enough - visualization of the sound flow and special effects are needed. In other words, we need color music (or light music as it is sometimes called). But where can you get it if such equipment in specialized stores is not cheap? Do it yourself, of course. All you need for this is a computer (or a separate power supply), several meters of LED RGB strip with a power consumption of 12V, a USB development board (AVR-USB-MEGA16 - perhaps the cheapest and simplest option), as well as a circuit diagram for , what and where to connect.
A little about the tape
Before moving on to the work itself, it is necessary to determine what exactly this 12V LED RGB strip is. And it is a simple, but at the same time very ingenious invention.
LEDs have been known for decades, but thanks to innovative developments they have become truly universal solution for a variety of electronics problems. They are now used everywhere - as indicators in household appliances, independently in the form energy saving lamp, in the space industry, as well as in the field of special effects. The latter also includes color music. When three types of LEDs - red (Red), green (Green) and blue (Blue) are combined on one strip, an RGB LED strip is obtained. Modern RGB diodes have a miniature controller. This allows them to emit all three colors.
The peculiarity of this tape is that all the diodes are grouped and connected into a common chain, controlled by a common controller (it can also be a computer if connected via USB, or a special power supply with a control panel for stand-alone modifications). All this allows you to create an almost endless tape with a minimum of wires. Its thickness can reach literally several millimeters (if you do not take into account options with rubber or silicone protection from physical damage, moisture and temperature). Before the invention of this type of microcontrollers, the most simple model had at least three wires. And the higher the functionality of such garlands, the more wires there were. In Western culture, the phrase “unraveling the garland” has long become a common noun for all long, tedious and extremely confusing tasks. And now this has ceased to be a problem (also because the LED strip is prudently wound onto a special small drum).
What do we need?
DIY color music from tape GE60RGB2811C
Ideally, to organize color music with your own hands, we will use a ready-made LED strip powered by USB port computer. All we need is to download required application on the same computer, set up file associations with the desired audio player, and enjoy the result. But this is if we are very lucky, and if we have the money to purchase all this. Otherwise, everything looks a little more complicated.
Electronic components stores sell LED strips of various lengths and power, but we only need 12V. She happens to be the best option for connecting to a computer via USB. For example, you can find the GE60RGB2811C model, which consists of 300 RGB LEDs connected in series. One of the advantages of any such tape is that it can be cut as you wish - to any length. All that is needed after this is to connect the contacts so that the electrical circuit is not open and the circuit is complete (this must be done).
Color music setup scheme
Also we may need a development board for USB connections. The most popular, cheapest, yet functional connection option is the AVR-USB-MEGA16 model for USB 1.1. This version of USB is considered somewhat outdated because transmits a signal to the LEDs at a speed of 8 milliseconds, which is too slow for modern technology, but since the human eye perceives this speed as the “blink of an eye,” it is quite suitable for us.
If we omit most of the most complex technical subtleties and nuances, then all that such a connection diagram requires of us is to take a tape of the required length, release and strip the contacts on one side, connect and solder them to the output on the breadboard (the board itself shows the symbols which connector is needed and what is it for) and, in fact, that’s all. For the full length of the 12V tape there may not be enough power, so you can power them from an old computer power supply (this will require parallel connection), or simply cut the tape. With this option, the sound will come from the computer speakers. For those who are particularly experienced in electronics, we can recommend connecting a microphone amplifier and a small “tweeter” speaker directly to the AVR-USB-MEGA16.
Scheme for attaching the contacts of the tape to the USB cord from the smartphone
If you couldn’t get this board, then as a last resort, the connection can be made via LED RGB 12v tape USB cable from a smartphone or tablet computer(the diagram for setting up color music with your own hands allows this). It is only important to make sure that the cord will provide the required 5 watts of power. At the end of all these manipulations, install the SLP program (or write down all the steps in txt file, if programming knowledge allows and the diagram and algorithm of all actions is clear), select desired mode(by the number of diodes), and enjoy the work done with our own hands.
Conclusion
Color music is not a necessity, but it makes our lives much more interesting, and not only because we can now look at flashing multi-colored lights that light up and go out to the beat of our favorite melody. No, we're talking about something else. Having made something like this with your own hands, rather than buying it in a store, everyone will feel a surge of strength from the satisfaction inherent in every master and creator, and the realization that he, too, is worth something. But in essence, the color music is installed, blinks and pleases the eye with minimal costs and maximum pleasure - what else is needed?..
Lighting in the kitchen of a small apartment
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Do-it-yourself color music - what could be more pleasant and interesting for a radio amateur, because it is not difficult to assemble if you have a good circuit.
In modern radio engineering there is a huge variety of radio elements and LEDs, the advantages of which are difficult to doubt. A wide range of colors, bright and rich light, high speed of response of various elements, low energy consumption. This list of advantages can be continued endlessly.
The principle of operation of color music: LEDs assembled according to the circuit blink from an existing sound source (this can be a player or a radio and speakers) at a certain frequency.
Advantages of using LEDs over those previously used in CMU:
- luminous saturation of light and a wide color range;
- good speed;
- low energy consumption.
The simplest schemes
A simple color music that can be assembled has one LED and is powered by a 6–12 V DC source.
You can assemble the above circuit using an LED strip and selecting the necessary transistor. The disadvantage is that there is a dependence of the LED blinking frequency on the sound level. In other words, the full effect can be observed only at one sound level. If you lower the volume, there will be a rare blinking, and if you increase the volume, a constant glow will remain.
This drawback can be eliminated using a three-channel sound converter. Below is a simple circuit; it is not difficult to assemble it with your own hands using transistors.
Color music circuit with three-channel sound converter This circuit requires a 9-volt power supply, which will allow the LEDs in the channels to light. To assemble three amplification stages, you will need KT315 transistors (analogous to KT3102). Multi-colored LEDs are used as a load. A step-down transformer is used for amplification. Resistors perform the function of adjusting LED flashes. The circuit contains filters for passing frequencies.
The scheme can be improved. To do this, you need to add brightness with 12 V incandescent light bulbs. You will need control thyristors. The entire device must be powered from a transformer. According to this the simplest scheme You can already work. Color music using thyristors can be assembled even by a novice radio technician.
How to make color music using LEDs with your own hands? The first thing you need to do is select an electrical circuit.
Below is a diagram of a light and music system with an RGB strip. For such an installation, a 12 volt power supply is required. It can work in two modes: as a lamp and as a color music. The mode is selected by a switch installed on the board.
Manufacturing stages
It is necessary to make a printed circuit board. To do this, you need to take foil fiberglass with dimensions of 50 x 90 mm and a thickness of 0.5 mm. The board manufacturing process consists of several stages:
- preparation of foil PCB;
- drilling holes for parts;
- drawing paths;
- etching.
The board is ready, components have been purchased. Now begins the most crucial moment - the wiring of radio elements. The final result will depend on how carefully they are installed and sealed.
We assemble our printed circuit board with the components soldered on it into such an accessible lampshade.
Brief description of radioelements
Radioelements for an electrical circuit are quite affordable; purchasing them at your nearest electrical goods store will not be difficult.
For color and musical accompaniment, wirewound resistors with a power of 0.25–0.125 W are suitable. The amount of resistance can always be determined by the colored stripes on the body, knowing the order in which they are applied. Trimmer resistors can be both domestic and imported.
Capacitors produced by industry are divided into oxide and electrolytic. It won’t be difficult to select the ones you need by doing basic calculations. Some oxide capacitors may have a polarity that must be observed during installation.
You can take a ready-made diode bridge, but if you don’t have it, then a rectifier bridge can be easily assembled using diodes of the KD or 1N4007 series. LEDs are taken as usual, with a multi-colored glow. The use of LED RGB strips is a promising direction in radio electronics.
LED RGB strip Possibility of assembling a color and music console for a car
If you manage to please with color music from LED strip, made by yourself, then a similar installation with a built-in radio can be made for a car. It is easy to assemble and quick to set up. It is proposed to place the console in plastic case, which can be purchased in the electrical and radio engineering department. The installation is reliably protected from moisture and dust. It is easy to install dashboard car.
You can also make a similar case yourself using plexiglass.
The plates of the required dimensions are selected, two holes are made in the first part (for power supply), and all parts are sanded. We assemble everything using a heat gun.
An excellent lighting effect is achieved if you use multi-colored (RGB) tape.
Conclusion
The well-known saying “it is not the gods who burn the pots” remains relevant today. A diverse range of electronic components gives craftsmen wide scope for imagination. DIY color music on LEDs is one of the manifestations of limitless creativity.
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