Negative output Luo converters: voltagelift technique

The voltage lift technique is a popular method widely applied in electronic circuit design. Since the effect of parasitic elements limits the output voltage and power transfer efficiency of DC–DC converters, the voltage lift technique can lead to improvement of circuit characteristics. After long term research, this technique has been successfully applied for DC–DC converters. As with positive output Luo converters, negative output Luo converters are another series of new DC–DC step-up (boost) converters, which were developed from prototypes using the voltage lift technique. These converters perform positive to negative DC–DC voltage-increasing conversion with high power density, high efficiency and cheap topology in simple structure. They are different from other existing DC–DC step-up converters and possess many advantages, including a high output voltage with small ripples. Therefore, these converters will be widely used in computer peripheral equipment and industrial applications, especially for high output voltage projects.