Single-Stage High-Frequency Resonantac/AC Converter Using Fuzzy Logic and Artifical Neural networks

In large applications like LCD panel back lighting, street lightning, lighting of tunnel etc LED driver is used because of its three major functions such as power factor corrections, constant current output and galvanic isolation. A single stage high frequency AC-AC converter using soft computing techniques are proposed in this paper. It is composed of LCL-T resonant rectifiers which act as a output. The main operation focussed in this paper is converting input AC voltage into a output voltage which is sinusoidal with high frequency. Initially three stages of LED driver is presented followed by its topology derivation and its operating principle. Then its performance is analysed using soft computing technique such as neuro network.