A power transformer is to convert alternating current of one voltage to alternating current of another voltage at a constant frequency. The device in the normal “classic” transformer all know from school physics lessons. The principle of operation is based on electromagnetic induction. In the primary winding under the action of tension in the core induces a magnetic flux proportional to this voltage, which, in turn, an electromotive force of self-induction (EMF) in the secondary windings is directly proportional to the number of turns of these windings.
Electronic transformer (ET) and arranged differently, and the principle of its action is quite different. In fact, ET is a switching power supply — inverter voltage with electronic protection against short circuit, overload and excessive heating of the elements. All energy-saving lamps, lamps, lamps, fluorescent lights, illumination of aquariums and other similar devices are equipped with a FLOOR probe.
Electronic transformer, designed to power low voltage halogen lighting systems, so popular among fans of the “renovated”. It can be used together with a dimmer designed for electronic Converter (for example, ЅЕТ70М or with switch-dimmer for conventional transformers). ET meets the standards of relative safety and protection from interference. It works on the voltage of the lighting network in the range 190 — 230 V (frequency 50 Hz) and provides the output voltage 11,6 — 12,2 V. the length of the cable (at the output) can reach 4 m.
Electronic transformer with the load of two low-voltage halogen lamps
But FL can be used not only on direct purpose, but also to power any resistive load not exceeding the capacity parameters of ET (usually they are specified on the housing of the electronic element). For example, the release of ET can be connected a heating element, designed for a voltage of 12 V with a current consumption of no more than 1.5 A or automotive incandescent lamp 12 watts (indicated on the cap), for example, as a warning lamp. As shown by experiments, in pulse mode, so the FLOOR is able to provide power to the load power up to 24 watts. Consumers with the same capacity can be connected in intermittent operation (not more than a few minutes).
The electrical circuit connecting the load to the electronic transformer.
The electrical circuit connecting the load to the electronic transformer shown in figure.