The basis of the CFL includes - oscillating circuit consisting of the choke L, the pulse transforme

The principle neoncsЕ‘ of operation is the CFL is applied to the electrode 2 and the coated barium oxide or barium voltage resulting in excitation (ionization) vapor mixture of argon and mercury. As a result, low temperature plasma ionization occurs within the lamp. The mercury vapor emits ultraviolet radiation that is converted into visible light by a luminescent material which is covered by the inner part of the lamp. Luminescence spectrum CFL depends on the composition of the phosphor. The color temperature neoncsЕ‘ of the flask is different, at T = 2700K lamp has a warm light at T = 4000K daylight, and at T = 6400K cold light of day.
CFL Power produced by the converter that works on HF up to several tens of kHz. Therefore, we do not see flickering lamp unlike TLL. Important in CFL ballast (ECG). In inexpensive neoncsЕ‘ CFL ballasts simple it simple output filter, no power factor neoncsЕ‘ correction, simplified protection. In such CFLs installed Autogenerating circuit with transformer or half bridge cascaded bipolar transistors. Generator neoncsЕ‘ 2 normally serve as the transistor. Proper selection of these transistors determines neoncsЕ‘ the life of the lamp, so for example output 1 ... 9W used transistors series 13001-92, 11W - 13002-92, 15 ... 13003TO 20W-126 for 25 ... 40W - 13005 TO-220, 40 ... 65W Series 13007-220 for 13009 Series 85W-220.
DC voltage applied to the input of the generator with two half-cycle rectifier (4th diode), followed by a capacitive filter (electrolytic capacitor) at extremely high capacity capacitor will flicker when using a switch with illumination. So for example, when CFL 20W enough 4,7mkF. neoncsЕ‘
The basis of the CFL includes - oscillating circuit consisting of the choke L, the pulse transformer TR and druh capacitors. Both the capacitor and the inductor, one of the transformer windings are connected in series with the lamp coil. Number of turns of the transformer is small, its winding turns comprise 5-10.
In the beginning when repairing lamp spiral check the integrity of the bulb, and then the fuse (in general if it is installed). Next, check both the oscillating circuit capacitor, then check the resistors and transistors transitions.
CFL type Brownie 20w Figure neoncsЕ‘ 1, Isotronic 11w Figure 2, Luxtek 8w Figure 3 and Figure 4 Sinecan 30w inlet 230 have a pulse transformer voltage is applied to the diode bridge in Figure 3 for a smoother start using PTC thermistor .
Warmed electrodes and Rs have sufficiently high resistance, and the resistance of the ionized gas is sufficiently small, and the current starts flowing through the discharge in the bulb. Bulb shunts trigger circuit, and it comes out of resonance with the RF generator. The ballast enters the operating voltage 320V. The use of RTS significantly reduces neoncsЕ‘ electrode wear and extends the life of the lamp. The same can be installed NTC thermistor which is installed in series with the coil of the lamp.
Sometimes, neoncsЕ‘ a voltage is applied across the inductor as shown in the diagram CFL type Polaris 11 w Figure 5, ikea 7w Figure 6 and Figure Luxar 11w. 7. The lamp in Figure 6 between the coils mounted neoncsЕ‘ thermistor R5 performs neoncsЕ‘ soft start CFL.
Inrush current limit functions are resistors and the fuse installed in the CFL type lm-mediatally 25w Figure 8, Osram Dulix EL 11w Figure 9 and Figure neoncsЕ‘ 10 EL 21w. Dida D1 D2 in Figure 9 and Figure neoncsЕ‘ 10 dumps have not been established as between the collector and emitter neoncsЕ‘ of transistor used has built-in diodes. In Figure 10, a thermistor is not due to the low cost of the lamp.
Literature used by the author (PP Bobnich, Uzhgorod) 1.Bobnich PP Electric LED lamp // Radioamator 07/08/2010 neoncsЕ‘ s.42-44 2.Bobnich PP LED lamp for voltage 220V // Electricians - 2010 - 9 - S.62-63. 3.Vlasyuk NP Electronic ballast compact fluorescent lamp daylight company neoncsЕ‘ Delux // Radioamator 2009. 1 S.43-45 4.Shirokov B. Selection, use and repair of compact fluorescent lamps. 5.Vlasyuk NP Fluorescent neoncsЕ‘ lamps and electronic ballasts // Radiamator - 2009 5 S.34-37. 6.Vlasyuk NP Fluorescent lamps and electronic ballasts // Radiamator - 2009 6 S.34-37. 7.Kashkarov AA Repair energy saving lamp // Electric 2009 9 S.66-67 8.Shelehov AA Quick repair of energy-saving neoncsЕ‘ lamps // Radioamator 2009 5 P.38.
Electronic ballast compact fluorescent lamp daylight DELUX To ignite a fluorescent lamp it must be heated filament and a voltage of 500 ... 1000V, the voltage is directly proportional to the length of the glass bulb. After lighting the lamp dramatically reduces their resistance, and therefore it is necessary to apply a current limiter to prevent short-circuit in the mouth ... Charging of mobile phone NOKIA AC-3E (repair) Principle of operation: AC mains voltage is rectified to DC 300 ... 310 V and further via the transistor switch converts the