| 摘要 |
PURPOSE:To provide a high-performance electric anticorrosion apparatus having lamp current improved in stability, by rectifying separately the secondary AC current on the positive and negative sides of a step-down transformer to produce two electric power source, which are connected separately to a load. CONSTITUTION:A low-voltage current is produced from a commercial AC power source 1 on the secondary side of a step-down transflormer 2 having a neutral point, the positive (a) side of the AC being half-wave rectified by a diode 3 and converted to a smooth DC i1 by a capacitor 12, while the negative (b) side of the AC being half-wave rectified by a diode 4 and converted to a smooth DC i2 by a capacitor 13. The DC i1 is fed to the water contained in a tank through a positive electrode 8 for electric anticorrosion, and the DC i2 is fed through a resistance 6 to a light emission diode 7. The DC i2 uses (b) phase which is reverse to the (a) phase used as the anticorrosion current, hence i2 is constant independently of the change in DC current i1 due to the change in resistance of water. |
