Why does the energy-saving lamp work with an electronic ballast
Because the fluorescent tube is lit in a special way. Common fluorescent lamp tube structure of hollow glass tube, both ends of each have a filament, inside the tube filled with low-pressure mercury vapor and some inert gases, glass tube inner surface coated with white fluorescent powder. Two filament leads to two leads, so a fluorescent tube actually has four lines. On both ends of the tubes in the absence of light, present a high impedance state, the 220 v voltage connected directly to the, no current will not shine, the need for a short duration of high voltage pulse to breakdown of the gas inside the tubes, make its ionization. In the case of inductance ballast, the ballast is caused by the power failure of the regenerator in the moment of the disconnection of the inductor, which produces several thousand volts of self-inductance voltage, and puncture the lamp tube. New type of electronic ballast, adopted the LC series resonance circuit, when the output current frequency of the ballast are in conformity with LC circuit resonance frequency, LC series resonance occur circuit, voltage rise sharply on both ends of the inductance and capacitance, and the capacitance and the tubes in parallel, thus launch tubes.
Usually only fluorescent lamp, high-pressure sodium lamp has ballast, energy-saving lamp does not have
Both energy-saving and fluorescent lamps have one thing in common: they're all cold cathode discharge principles! They all need a high-voltage start pulse to start! After starting successfully all require a current limiter (circuit) ballast! Whether it's inductance or electronic, the effect is the same!
You said it should be a fluorescent lamp. Electronic ballast, a kind of ballast, refers to electronic devices that use electronic technology to drive electric light sources to produce the needed illumination. Corresponding to this is the inductor type ballast (or ballast). Modern increasingly use electronic ballast fluorescent lamp, can even integrate electronic ballast and tube together, at the same time, the electronic ballast can be both electric fluorescent starter function normally, so can save a separate electric fluorescent starter again. Electronic ballasts can also have more functions, such as by improving the current frequency or current waveform (e.g., into a square wave) to improve or eliminate fluorescent lamp flickering phenomenon; It can also be used to make fluorescent lamps use dc power. In addition to traditional energy-saving lamps, the 3G energy-saving lamp also does not need a ballast, and the light is closer to the sun's rays.
Electronic ballast can be used to increase the amount of pressure of 1000V needed to start the energy saving lamp.
