Why do triggers and ballast produce high pressure?
Ballast is a inductor! It creates instantaneous self-inductance when the current is mutated. Because its coils are iron-core! The electric inductance is very big! So the inductance voltage is very high! Enough to puncture the bright light bulbs containing mercury vapour! 2) the current mutation in the ballast is caused by the generator (blister). The voltage of the lamp is not enough to make the glow again! It's not moving! The ballast is no longer in the strong sense voltage! 3) it is normal that the voltage above the voltage is higher than the voltage. Due to the rapid changes in the intensity and direction of the ac current due to the normal work, the voltage of alternating current will be generated. This voltage is applied by the effect of the stagflation of the inductance.
Ha ha, connected to the power supply, starter glow discharge, fever, yes bimetallic strip deformation and short circuit connected, starter switch on, filament and ballast (inductance) series travel channel, the filament heating emission electrons, 2: as the starter cannot continue discharge connect, metal cooling, disconnect circuit, as a result of the starter suddenly disconnected, the circuit of series ballast (inductance), the characteristics of inductance circuit is disconnected, the electric current can't suddenly disappeared, (inductive energy storage) inductance into a power supply at this time, and can produce high voltage, and power supply voltage, forming series, added to the filament,
Because the power supply for alternating current (ac), series inductance in the circuit, if is the resistance, tube voltage and inductance voltage is 220 v, but the nature of inductance for ac voltage has the effect of phase shift, so the tube voltage and inductance voltage more than 220 v, alternating current (ac) power is related to the phase of voltage and current, so the ac load cannot separately use the product of voltage and current, because when the inductance on the voltage and current are not synchronized.
High voltage is added to the ends of the tube, and once again wear 銾 steam in the tubes, the conduction inside the tubes, forming pathway, emit electrons, again hit the lamp tube wall phosphors that phosphor, secondary electron orbital transition occurs, emit visible light. The inductance is connected to the lamp tube, and the inductance becomes a current-limiting device. So the fluorescent lamp is also called a secondary light source.
