• Pruthviraj H
• Dr K Shanmukha Sundar
• Radhaswamy G

This paper presents examination between open loop and closed loop control for High gain quasi-z source DC-DC converter. This converter utilizes a hybrid switched capacitors switched-inductor method in order to achieve high voltage gains. Moreover, so as to get the controlled output voltage from the DC-DC converter under fluctuating input conditions, it is required to regulate the output voltage which can be obtained by using closed loop control. Closed loop control technique is crucial in power converters to meet the desired load necessities. PI controller is one among the existing control technique. This technique has a single loop arrangement with proportional and integral gains in the forward path. The utilization of PI controller enhances system dynamic response and reduces undesirable peak overshoot, undershoots and also reduces the settling time. Open loop and closed loop control of the proposed High step up DC- DC converter is analyzed and simulated for R load using MATLAB Simulink.

Quasi-Z Source Dc-Dc Converter, Open Loop, Closed Loop, Pi Controller.

"A Comparison Between Open Loop And Closed Loop Operation Of High Gain Quasi-Z Source DC-DC Converter", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.837-843, June-2019, Available :http://www.jetir.org/papers/JETIR1906264.pdf

"A Comparison Between Open Loop And Closed Loop Operation Of High Gain Quasi-Z Source DC-DC Converter", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp837-843, June-2019, Available at : http://www.jetir.org/papers/JETIR1906264.pdf