Scheme of electronic transformer for halogen lamps 12V. How is the electronic transformer arranged?

The transformer will work on converting the current from the 220V mains. The devices are divided by the number of phases, as well as the overload indicator. Modifications of single-phase and two-phase types are presented on the market. The current overload parameter ranges from 3 to 10 A. If necessary, you can make an electronic transformer yourself. However, for this, first of all it is important to familiarize yourself with the device model.

Model outline

The circuit of the electronic transformer for halogen lamps 12V assumes the use of an access relay. Directly the winding is applied with a filter. To increase the clock frequency in the chain there are capacitors. They are produced in an open and closed type. Single-phase modifications use rectifiers. These elements are necessary to increase the conductivity of the current.

On average, the sensitivity of the models is 10 mV. With the help of expanders, problems with overloads in the network are solved. If we consider a two-phase modification, then it uses a thyristor. This element, as a rule, is installed with resistors. The average capacity is 15 pF. The level of current conductivity in this case depends on the load of the relay.

How to do it yourself?

You can easily make an electronic transformer yourself. For this purpose it is important to use a wire relay. The expander for it is expedient to select an impulse type. Capacitors are used to increase the sensitivity of the device. Many experts recommend that resistors be installed with insulators.

To solve problems with voltage jumps, filters are soldered. If we consider a self-made single-phase model, then the modulator is more suitable for selecting at 20 watts. The output resistance in the transformer circuit must be 55 ohms. The output contacts are soldered directly to the device.

Devices with a capacitor resistor

The circuit of the electronic transformer for halogen lamps 12V assumes the use of a wire relay. In this case, the resistors are placed behind the plate. Typically, modulators are used in an open type. Also, the electronic transformer circuit for halogen 12V lamps includes rectifiers that are matched with filters.

Amplifiers are needed to solve switching problems. The output impedance parameter is on average 45 ohms. The conductivity of the current, as a rule, does not exceed 10 microns. If we consider a single-phase modification, then it has a trigger. Some experts use triggers to increase conductivity. However, in this case, the heat loss significantly increases.

Transformers with regulator

Transformer 220-12 V with a regulator is arranged quite simply. The relay in this case is standardly wired. Directly the regulator is installed with a modulator. To solve problems with reverse polarity there is a kenotron. It can be used with or without lining.

The trigger in this case is connected via conductors. These elements are only able to work with impulse expanders. On average, the conductivity parameter for transformers of this type does not exceed 12 microns. It is also important to note that the negative resistance figure depends on the sensitivity of the modulator. As a rule, it does not exceed 45 ohms.

Using wire stabilizers

The transformer 220-12 V with a wire stabilizer is very rare. For the normal operation of the device you need a quality relay. The negative resistance is an average of 50 ohms. The stabilizer in this case is fixed on the modulator. This element is primarily designed to lower the clock frequency.

The thermal losses in this case are insignificant for the transformer. However, it is important to note that there is a lot of pressure on the trigger. Some experts recommend using capacitive filters in this situation. They are sold with a conductor and without it.

Models with a diode bridge

A transformer (12 volts) of this type is produced on the basis of selective triggers. The threshold resistance in the models is 35 ohms on average. To solve the problems with lowering the frequency, transceivers are installed. Directly diode bridges are used with different conductivity. If we consider single-phase modifications, then in this case the resistors are selected on two plates. The conductivity index does not exceed 8 microns.

Tetrodes at transformers can significantly increase the sensitivity of the relay. Modifications with amplifiers are very rare. The main problem of transformers of this type is negative polarity. It arises due to the increase in the temperature of the relay. To correct the situation, many experts recommend using triggers with conductors.

Model Taschibra

The circuit of the electronic transformer for halogen lamps 12B includes a trigger for two plates. The relay has a wired type. To solve problems with reduced frequency, expanders are used. In total, the model has three capacitors. Thus, problems with congestion on the network are rare. On average, the output resistance parameter is kept at the level of 50 Ohm. According to experts, the output voltage on the transformer should not exceed 30 watts. On average, the sensitivity of the modulator is 5.5 microns. However, in this case it is important to take into account the workload of the expander.

Device RET251C

The specified electronic transformer for lamps is produced with an output adapter. The expander has a dipole type. In total, the device has three capacitors. The resistor is used to solve problems with negative polarity. Condensers in the model rarely overheat. Directly the modulator is connected via a resistor. In total, the model has two thyristors. First of all, they are responsible for the output voltage parameter. Also thyristors are designed to ensure stable operation of the expander.

Transformer GET 03

The transformer (12 volts) of this series is very popular. In total, the model has two resistors. They are located next to the modulator. If we talk about the indicators, it is important to note that the frequency of the modification is equal to 55 Hz. The device is connected via an output adapter.

The expander is matched with an isolator. Two capacitors are used to solve problems with negative polarity. The regulator in the presented modification is absent. The conductivity index of the transformer is 4.5 microns. The output voltage fluctuates around 12 V.

Device ELTR-70

This electronic transformer 12B includes two thyristors. A distinctive feature of the modification is a high clock speed. Thus, the current conversion process will take place without voltage jumps. The extender in the model is used without the lining.

To reduce the sensitivity there is a trigger. It is established as a standard selective type. The negative resistance is 40 ohms. For single-phase modification, this is considered normal. It is also important to note that the devices are connected via an output adapter.

Model ELTR-60

This transformer highlights the stability of the voltage. The model refers to single-phase devices. The capacitor is used with high conductivity. Problems with negative polarity are solved at the expense of the expander. It is installed behind the modulator. The regulator in the represented transformer is absent. In total, the model uses two resistors. Their capacity is 4.5 pF. If you believe the experts, the overheating of the elements is very rare. The output voltage on the relay is exactly 12 V.

Transformers TRA110

These transformers operate from a through relay. Expanders of the model are used in different capacities. On average, the output resistance of the transformer is 40 ohms. The model refers to two-phase modifications. The threshold frequency is 55 Hz. In this case, the resistors are of dipole type. In total, the model has two capacitors. To stabilize the frequency while the device is operating, a modulator operates. Conductors in the model are soldered with high conductivity.