Electronic transformer for conventional lamp
At the present time gaining popularity small block "Electronic transformer", our beam (radio) market is just flooded with these devices. There are cheap Chinese electronic transformers and even domestic. But I do tend to use a device of this type European Assembly. About them and try to start a conversation. Price electronic transformer made adaptive to any purse, in view of the fact that the size is small and the price is reasonable and the variety is very wide Amateurs trying to find absolutely no conceivable solution for use in the home electronic transformer. In the apparatus of the electronic transformer of the world is leading brands to use are already as a rule. Incidentally electronic transformers are cheaper than conventional inductive, with the same parameters. Schematically the electronic transformer is virtually identical, only have elemental difference, and the design of parts and components may be different. But as you know, who she wants and sculpts based on the pry bar. I recently bought one of the electronic transformer type not clear (see the smiling brothers from the East built) with parameters output 12V watt. Decided to use it for powering your own manufacture lighting device. I gathered together in a special case of the order of 100 LEDs, connected them to feed the lamp of 12 Volts and began to solve the problem in the complex.
In principle it worked with just pink! Took the findings threw the lamp and everything! Light in the room during day light only some are too white and annoying. As experts say you had to press a clip of LEDs of different luminosity spectrum and then we would have something dear and close to the lamp of Ilyich. But this is my jambs and they are not discussed here! For those who decide to repeat the sort of design decision lamp, do not give advice, because the device is "raw", while suspending it on a post I received the illumination of the whole problem with minimum current consumption. So. that the use of electronic transformer in principle for this system exterior lighting will go. And for those who reads or writes under the lamp, his eyes get tired quickly. In General, to give the just what the doctor ordered.
Perhaps if I talked about electronic transformers, it is necessary and in summary form to clarify that this beast and in General its essence than he Dixit! a diagram of a typical electronic transformer works as follows:
the Mains voltage is applied to the diode bridge, there it is transformed into a voltage half-cycle sine wave with twice the frequency. Further, the scheme gets us a dinistor (he does not care what polarity to miss I), it is in my scheme apparently sadasivan to run electronic transformer, I am more explanation of this part in conjunction with diode D6 do not find it. I read scheme, and how this bunch of name-calling, but most often there is such a name as "TRIGGER DIODE”, although it is rather about diacs than about diacs together with diode. Oh well!
Each cycle of dinistor starts the generation. If for example I decide to adjust the brightness of your lamp by changing some parameter in the electronic transformer, this is here done, I mean simply adjust the degree of opening of diacs. At what frequency start the generator depends mainly on the parameters of the coil and core of the trance that relies on feedback and the transistors in the generator. Often people say that it is around the aisles of 40 kHz. I have not taken in its electronic generator such, because it did not interest me at all. That is all, there are no particularly difficult or anything. I enclose you the schematics of the electronic transformer. Works like a clock, if you wish to repeat such a decision, it is possible under this subject to buy electronic transformer more expensive performance with the chip in the middle. He, I mean this electronic transformer is much less first, and work the same. Good luck!
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