Electronic fluorescent started when ignited requires a high voltage, the small current is allowed only through the normal light and, when the voltage across the lamp is less than the supply voltage. This high voltage, we usually say jump bubble (starter).
When connected fluorescent lamps schematic Tong power, two sheet metal starter neon bulb is not turned on, the power breakdown neon conductive, when we see the neon light bulb, neon gas conductive fever, caused by a neon bulb bimetal (see curved Flanagan) after heat bending decreases, while connected to the two electrodes, by a larger current.
Achieve the required high voltage fluorescent startup. Thereafter, the bimetal ON after neon bulb, a neon gas is no longer conducting light emitting, the temperature is decreased rapidly, the bimetal restitution and quickly cut off the power supply current from a greater value suddenly becomes O ballast generated high self-inductance electromotive force, the self-inductance voltage sufficient breakdown of mercury vapor fluorescent lamps, mercury the vapor ionization conductive produce ultraviolet excitation phosphor luminescence, fluorescent tube conductive, fluorescent tubes at both ends of the voltage drop (100V) this voltage can no longer make the neon bulb conductive (the breakdown voltage of the neon bulb is about 150V) to emit light, the bimetal is also no longer turned At this time, fluorescent light can be continuously.
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