ANALYSIS OF THE CURRENT STATE OF THE ELECTRONIC STARTER APPLIANCES FOR DISCHARGE LAMPS

Abstract

Analysis the current state of electronic devices electro magnetic ballasts (EB), to provide modes of ignition and stabilization of the operating parameters discharge lamps from the point of view of optimization of technical and economical characteristics in accordance with european regulations pertaining to efficiency and energie saving in light installations. That modern electronic ballasts, as a rule, are built on integral chips, which have special functions: start generators, proofreader of forms consumed from the network current and coefficient power, protection circuits against short circuit, overload.
The use of electronic ballasts allowed to use the power of discharge lamps voltage of high fragrance that significant use functional lighting and opportunities lighting systems (OS). To increase the light output and lines of service tubes, to reduce the consumption of electric energy and the pulsation of the luminous flux, the weight and dimensions of the device. The main problem for the sake of using EB mass is considerably greater (about 2 times) the cost due to the considerably large number of components of the electrical circuit, which in turn, reduces the reliability and lifetime of the device. However, with further grave energy costs and, accordingly, energy and materials are used for making ballasts (EmB), this difference will be less.
To enhance the competitiveness of electronic ballasts in comparison with cheaper EmB, the most modern of vehicles produced under the simplified scheme without prior razogreva electrodes, which adversely affects the
service life. This is especially concern of electronic EB for integrated compact luminess lamps embedded in the base and in which there is no protection against short circuits, overheating and overloads, there is no stabilization light flux and correction coefficient capacity of approximately 0,6÷0,7. In consequence of that occurs the distortion of the input current lamp, that witnesses about the fact that is a source of reactive power, is given to the network. Currently, only 10% of the total number of EB use effective correctors of power factor. Therefore, the problem of improvement of existing schemes for these devices, according to the requirements of energie saving very relevant.
The alternative to a relatively expensive electronic apparatus can serve as developed by the authors EB combo, combining simplicity and reliability of electromagnetic and electronic additional function that has been proven when the robot discharge lamps high pressure power 50 – 150 watts. The scheme of the combined BALLAST for lamps makes it possible to ensure reliable ignition of the lamp due to the forced initiation of the book twice over the period of a sinusoidal voltage and to eliminate the possibility of emergence dangerous abnormal mode (diode effect).