This paper introduces a new method of intelligent control to control the Buck converter using newly developed small signal model of the pulse width modulation (PWM) switch. The new method uses recurrent supervised neural network to estimate certain parameters of the transformed system matrix [ A ~ ]. Then, a numerical algorithm used in robust control called linear matrix inequality (LMI) optimi...

In this paper controlled DC-DC converter using several fuzzy logic control law algorithms are studied. These controllers are designed to eliminate the overshoot and reduce the settling time response. In order to improve this property several control algorithms were investigated. The first one was the state controller with decomposed fuzzy PI controller and the second one was fuzzy PD state spac...

Addition of an input filter to a current-programmed converter can cause the controller to oscillate. Two instability mechanisms can typically occur: 1) the current programmed controller effective current feedback loop may become unstable, or 2) the controller effective input voltage feed forward loop, which becomes a positive feedback loop when an input filter is added, may oscillate. Design cr...

BAWA, GAURAV. Switched-Capacitor Filter Based Type-III Compensation for VoltageMode Control of Switched-Mode Buck Converters. (Under the direction of Dr. Alex Q. Huang). In this dissertation, we propose a novel technique for the voltage-mode control of switchedmode fixed-frequency Buck Converters using Switched-Capacitor Filters (SCF). The salient features of the analog sampled-data Type-III fi...

In this paper an Interval Type2 Fuzzy Logic (IT2FL) controller is proposed for the control of DC-DC converters to attain a good output voltage regulation and dynamic response. The buck and boost type DC-DC converters are considered for the implementation of the IT2FL controller. To study the effects on the system performance, the conventional PI and type-1 fuzzy controller are designed and comp...

In view of the stratospheric airship application requirements on energy storage and management system, based on the topology of DC/DC converter main circuit, the composite PI controller is designed to realize respective control with the Boost mode and Buck mode. Furthermore, limit stop integration method is proposed to achieve a buck-boost complex DC/DC converter boost with effective switching ...

This paper describes the implementation of fuzzy control algorithm (state controller with adjustable gains by fuzzy sets) in DC-DC Buck converter. All tasks are implemented by FPGA. Fuzzy sets are tuned by genetic algorithm of-line by using Fuzzy-logic and genetic toolbox in MATLAB. Fuzzyfication and defuzzyfication algorithms are implemented in real time in Field Programmable Gate Array (FPGA)...

This work presents the analysis of radiated EMI problems associated with DC-DC buck converters and the solutions for minimize the reverse recovery of the Drain-Bulk diode of the synchronous switching MOSFET. The DC-DC buck converter topology is used in computers and telecom applications because of its high power efficiency and multiple DC levels. For reducing the reverse recovery and its relate...

Nowadays, the usage of load emulators, is the best method for implementation and analysis of different electrical load change scenarios in laboratories. This paper presents an improved programmable load emulator which can emulate both reference active and reactive power simultaneously. The proposed control system can track the dynamic load changes rapidly and accurately in addition to pulse cha...