Illumination system having cold cathode started, illumination controlled gas discharge lamps in series

摘要

The invention relates to An illumination system having cold cathode started, illumination controlled gas discharge lamps in series, comprising the parts of a voltage-adjustable full-wave voltage-doubler rectifier power supply, a gas discharge lamp operating serially with the full-wave rectifier power supply, and inductor-resistor switches for controlling illumination, and the like, is characterized in that: a plurality of tubes operates serially with cold cathode started; the positive and negative half periods of a half-wave voltage-doubler rectifier power supply are combined by the isolating diodes to form a full-wave voltage-doubler rectifier power supply; a main power supply of the said illumination system is formed by combining a power supply of full-wave rectified having low voltage and large current with a power supply of full-wave voltage-doubler having high voltage through the utilization of the potential switched diodes; and a main power supply having high voltage with large internal resistance and low voltage with large current is formed by the full-wave voltage-doubler power supply together with the full-wave rectifier power supply for supplying the power to the gas discharge lamp having a plurality of tubes connected in series via the serial inductor and illumination control switch, thus, constituting an illumination system having cold cathode started gas discharge lamps in series with illumination controlled. The advantages are: running in series, cold cathode starting, illumination controllable, a plurality of tubes driven by a set of power supplies, energy saving, and low cost, meanwhile, reducing the dissipation of the discharge lamp, and reducing the pollution of the environment from the mercury in the wasted tubes.