Sodium lamps are not able to switch on the electricity supply after themselves light up because the gas inside is ionized ljus and ignition voltage far exceeds the maximum value of the supply voltage and therefore must produce high voltage pulses that cause the initial ionization and start-discharge current to flow, heated and gas You ionization keep.
Half of the scheme is to Aybac of and I finish the part that automatically turns off the lighter, because the precipitation resistor (I have a 45W bulb) arises damn big loss .. The device is manufactured on bakelite board and who do not like to let looking. Through ljus the bulb is charging capacitor ljus 220n charges and also for trimmer capacitor that is charged when the breakdown voltage of diac (about 30V?) Capacitor is discharged ljus to the control electrode of the triac, the main 220n capacitor is discharged into the transformer and the secondary appears high voltage pulse. But the momentum continues even when the lamp is lit so I added a circuit cut. Luckily I choke points to a 220V and 240v. So I joined 240V outlet and now I have between the two terminals tension around 8V. This tension arises only when choke and thus the discharge current passes. Voltage will guide diode, charges electrolyte, a relay switches on and off with lighter lamp continues to operate.
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