Bt136 600e voltage adjustment switching circuit: how to do it yourself

Devices that operate on the consumption of electric current can be adjusted without problems. Of course, taking into account, if the device already has such an opportunity. But even if it is not there, then you can do it yourself by installing a thyristor or triac power regulator. The most common voltage regulation switching circuit is the bt136 600e.

Advantages and disadvantages

Today, triac regulators are beginning to lead in sales in the specialized market. Unlike thyristors, triacs are bi-directional because they have a cathode and an anode. This allows the direction of the current to be changed during operation.

It should be noted that it is impractical to replace them with contactors, relays or starters. This is due to the durability of the triac, as well as many other positive qualities of such a device. Having installed it on the circuit, it almost never fails. Also, a positive moment can be considered the complete absence of a spark during operation. We analyzed circuits based on triacs, which at cost were much cheaper than analogs based on transistors and microcircuits.

Thus, the use of triacs has a number of significant advantages:

• long service life (parts practically do not wear out);
• the price of the device is low;
• during operation, mechanical contacts can be avoided.

This is not the entire list of benefits. There are some models that boast certain features.

There are also specific disadvantages:

• extraneous interference and noise;
• the device has great sensitivity to transients;
• to avoid overheating, the device is installed in a radiator;
• use at high frequencies is not possible.

Purpose of application

Triac voltage regulator has its own peculiarities of use. Such devices are of different power and, depending on this, can be used to operate a particular device.

Triacs are actively used in these types of household appliances:

• construction power tools;
• devices with a compressor;
• vacuum cleaners;
• washing machines;
• hair dryers;
• lamps and other lighting devices with the ability to adjust the power;
• heating devices, for example, a conventional boiler.

If we prepare about the types of triac regulators, then they are united by one characteristic - they all work on a similar principle. The only difference between them is their power. There are types of triacs that need to be especially carefully adjusted when adjusting control signals. Management is different for different species. It can be the simplest design with several capacitors and resistors, or it can be a complex circuit with a microcontroller.

Self-production

Today it is possible to install simple regulators on electrical appliances with your own hands, if you have the necessary tools and circuits. There are several possible variants of such schemes. One of the schemes is the bt136 600e. It is ideal, for example, for adjusting the degree of heating of a soldering iron.

Scheme options

The soldering iron can be equipped with a power adjustment device up to 90 W. This requires just a few details. It is thanks to this device that you can change not only the degree of heating of the soldering iron tip, but also the level table lamp glow, fan speed for many other appliances that require adjustments.

Such a regulator can be assembled on the basis of many triacs, for example, BTA 16600. But the ideal option would be to use a bt136 600e device. A triac of this type is better suited for adjusting the power of a soldering iron tip.

The device type BTA 16600 is characterized by the presence of a neon lamp in the circuit. It serves as an indicator of current power and can be a convenient option for many devices.

On the other hand, if you have minimal experience with microcircuits, then you can mount such a lamp in a power regulator circuit on a bt136 600e triac. The main thing is to choose the right neon lamp. The quality of the regulator, its functionality and much more will depend on the correct choice of such a device. It should have a minimum voltage rating.

The smoothness of adjusting the degree of heating of the soldering iron tip or the fan speed directly depends on this indicator. When installing the starter into the luminaire, the neon lamp can be omitted. Although the functionality of the device is reduced from this, since the voltage (power) indicator of the device will not be visible during operation.

There is nothing complicated in the regulator circuits for a soldering iron. D226 diodes are used to create a diode bridge. The thyristor KY202H must be mounted to it without fail. He has a personal control circuit. If the power adjustment range of the device is to be quite large, then circuits with an additional installation of a logic element - the K561NE8 counter are used. The thyristor will also regulate the power here.

After installing the diode bridge, according to the diagram, a conventional parametric stabilizer follows. It will turn on the supply of electricity to the microcircuit. It is also important to choose the right power and the number of diodes. They should correspond to the desired adjustment range.

There is another version of the circuit for adjusting the power of the soldering iron. It is very simple, there are no expensive and scarce parts in it. By pre-setting the LED, you can adjust the on / off state.

Possible allowable input voltage should be between 120 and 210 volts. For any device of this type, a voltage indicator can be used. Such a device can be found in an old tape recorder and used for personal purposes. To improve the device, you can use an LED or any other component of this type. It will highlight the voltage scale of the device, as well as the on or off state. This will significantly increase its functionality.

Assembling the device

When assembling a triac or thyristor power regulator with your own hands, you should take care of a high-quality case for the device. The best option would be to use plastic as it is easy to bend, cut, glue, and generally handle. Thus, you need to cut out the blanks from plastic, clean and process the edges, and then glue them together in the form of a box for the device. A made regulator is mounted in the box. After the device is assembled, it must first be checked for the correctness of the circuit and for operability before use.

In order to make this check, you can use a regular soldering iron. Alternatively, a multimeter is used. The devices just need to be connected to the output of the control circuit itself and rotate the regulator knob. If a test light is provided in the circuit, then when adjusting the brightness of its glow should change.

Some nuances of setting

There are also more powerful regulators, in which at constant voltage there will be an indicator of 450-500 W, and with alternating current - 220 volts. They are installed on devices that need such a load. These include fans, grinders, hammer drills, etc.

In such devices, the triac will perform the function of a phase regulator. The power range must be appropriate. The main functional responsibility will be the moment the triac is turned on, switching it to a higher or lower load when it goes through zero.

By default, the triac is in the closed position. As the voltage increases, the capacitors are charged, which is divided into two directions. This process will continue until the moment it charges up to 32 V in total in two directions. After this, the triac and dinistor are opened. The first one will be open for the entire half-period. Due to this principle of operation, in practice, the power of any device is regulated.

Using a thyristor

The use of a voltage regulator such as a thyristor allows you to make smooth adjustment, for example, with a soldering iron, from half of the possible voltage to the maximum. If the circuit is improved and a diode bridge is added, then the adjustment can be made from 0 to 100%.

The principle of assembling a regulator on a triac is very similar to that used in a thyristor device. This method is applicable to the assembly of any device of this type.

The assembly of a thyristor regulator on a printed circuit board is as follows:

1. First you need to prepare a wiring diagram. To do this, outline the circuit itself on the starting board with a nail or needle. It should be positioned in a comfortable way. If it is difficult for a novice master to do this, then you can purchase a board with a ready-made circuit.
2. Preparation of all required materials and tools. These include a printed circuit board. You can make it yourself or buy it. You should also prepare a knife, wire cutters, soldering iron, solder, flux wire, etc.
3. Next, you need to mount all the details according to a previously prepared diagram.
4. The excess ends of all parts must be removed with nippers.
5. This is followed by the soldering stage. First, all the details are done with a flux, then they are soldered in the following sequence: capacitors with resistors, transistors, thyristors, diodes, dinistors.
6. The next step is to prepare the case for assembly.
7. Cleaning, sealing contacts.
8. Insulation of wires.
9. Check before use.
10. Final assembly.

A thyristor with low power does not have large dimensions, so it is very convenient to use it. The special characteristics of this device include increased sensitivity.

In order to control the device, a capacitor with a resistor is installed. It can be applied to appliances whose total power does not exceed 40 watts. It is possible to adjust the power from minimum to maximum.

Price categories

Today, there are many modern manufacturers on the market that offer products of different quality and price. You need to carefully choose the device depending on what result you want to get.

Among the many proposals, it is necessary to pay attention to the following characteristics:

1. The power of the device. The higher it is, the more the cost of the device will be.
2. The complexity of the circuit itself. In the simplest circuits, the price of the device will depend on the triacs themselves and be limited by their cost. In more complex circuits with a microcontroller, the cost increases several times. Although they provide higher capabilities, the price increases accordingly.
3. Manufacturer's brand. From this parameter, the price in some cases can double. But you can find a less popular brand much cheaper, and in terms of its performance, the device will be no worse.

Thus, assembling a thyristor or triac power regulator will not be difficult even for novice craftsmen. Learning the rules of its operation will be a more difficult task. It remains very important that all of the above rules and assembly instructions are followed. This will make it possible to make a better device that will work smoothly and efficiently, as well as benefit its owner.