In order to realize low power consumption, system safety and the stable luminance uniformity of LED BLU (Back-Light Unit) system, new circuits with RLC (resistance-inductor-capacitance) regulation and snubber circuits have been proposed. From the simulation and experiment results based on our proposed model, the ripple power of the RLC regulation-embedded BLU circuit shows a dramatic reduction by more than 94.3 % as compared to the normal BLU and the overshoot voltage of the snubber circuit-embedded BLU circuit shows a dramatic reduction by more than 90.0 % as compared to the normal BLU, indicating that the proposed compensating-circuit is very promising for the realization of high-electrical efficiency BLU circuits.