China manufacturer of magnetic ballasts for metal halide flood lights & hps flood lights

The electrical schematic ends of double pressure electronic ignitor, its working principle is as follows: the power supply voltage in the negative half cycle, the current through the V 1, L 1 and L 2 to C 2 charging, at the same time, through the L 1 to C 1 filling turtle, when the supply voltage reaches the maximum value of 220V * V 2=311V, 1 and C C 2 charging voltage is about 300V, due to the one-way conduction properties of V 1, U C2 voltage value remains unchanged, while the U C1 gradually discharge, until the voltage is zero; when the power supply voltage in the positive half cycle, and through L 1 to L 2 the number of turns ratio is 10: 1, after L 1 after boosting the output voltage is 3000V, the bulb lit at both ends of double voltage starting circuit electronic ignitor is simple, because the thyristor current with temperature is larger, the open voltage over a wide range of drift reliability difference. It is the early use of high-pressure sodium lamp electronic ignitor in recent years, two-way thyristor tube ignitor commonly used electrical schematic diagram, its working principle is as follows: when the supply voltage is half of the week, V2 ignitor conduction, C1 through L2 and discharges C2, L2 generate induced electromotive force, the L1 coupling produces a pulse high voltage, lighting fire started; in power in the negative half cycle, lighting can still fire started three terminal electronic ignitor circuit.