• Girija G
• Mrs.K.P.Shobha

Diode Rectifiers are one of the most important circuits in small and medium scale power supplies where the intended power flow in unidirectional. The capacitor connected in parallel to the load of such power supplies often distort the AC input power leading to very high THD and low power quality which in turn reduces the input power factor. To improve this power factor, power converter interfaces are used and the duty cycle is so shaped that the entire power converter and load is seen as purely resistive, thereby reshaping the input current to sinusoidal and increase power factor to a value as high as one. Thus, in this paper, an In-detailed study on such power factor correction circuits (PFC) are presented with two power converters: Conventional Boost converter (CBC) and Interleaved Double - Boost converter (IDBC). The study the proceeds with development of steady state model and development of control loop. The control scheme involves two loops: faster inner current loop and slower outer voltage loop. The entire design of control loop is carried out using frequency response techniques such bode plots with emphasis on setting correct bandwidth and phase margins to ensure the controller speed and overshoots are within limits. Finally, the results from CBC and IDBCs are presented with emphasis on ensuring improved THD and power factor levels.

power factor correction, boost converter, Interleaved double boost converter, controller design.

"DESIGN AND ANALYSIS OF POWER FACTOR CORRECTION TECHNIQUES FOR SINGLE PHASE CONVENTIONAL AND INTERLEAVED DOUBLE BOOST CONVERTERS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 4, page no.q36-q56, April-2024, Available :http://www.jetir.org/papers/JETIR2404H06.pdf

"DESIGN AND ANALYSIS OF POWER FACTOR CORRECTION TECHNIQUES FOR SINGLE PHASE CONVENTIONAL AND INTERLEAVED DOUBLE BOOST CONVERTERS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 4, page no. ppq36-q56, April-2024, Available at : http://www.jetir.org/papers/JETIR2404H06.pdf