Abstract:
An apparatus for preventing abnormal voltage, a light emitting module, and a display apparatus are provided. The present apparatus for preventing abnormal voltage extracts the highest voltage and the lowest voltage among voltage applied from a plurality of loads, includes two voltage distribution units distributing the highest voltage and the lowest voltage, and detects whether the highest voltage and the lowest voltage applied from the voltage distribution unit are within a predetermined range. Accordingly, the apparatus for preventing abnormal voltage is not affected greatly in terms of its size and cost even if the number of loads to be protected increases.
Abstract:
A backlight assembly, a display device including the backlight assembly and a control method thereof are provided. The backlight assembly includes: a DC converter which converts input alternating current (AC) power into direct current (DC) power at various levels; a light source unit which has at least one point light source; and a power supply unit which receives the DC power output by the DC converter, converts the DC power into output power having a preset reference current level and supplies the output power to the light source unit.
Abstract:
A current balancing apparatus, a power supply apparatus, a lighting apparatus, and a current balancing method for preventing luminance imbalance are provided. The current balancing apparatus includes a balancer for balancing an AC current and a rectifier for generating a DC current by rectifying the balanced current. Hence, the luminance imbalance caused by dispersion of a light source can be addressed.