This chapter presents sliding mode approach for controlling DC-DC power converters implementing proportional integral derivative (PID) controllers commonly used in industry. The core design idea implies enforcing sliding mode such that the output converter voltage contains proportional, integral and derivative components with the pre-selected coefficients. Traditionally, the method of pulse wid...

A single-inductor dual-output (SIDO) DC–DC buck converter is presented. The circuit uses only one (external) inductor to provide two independent output voltages ranging from 1.2 V to the power supply (2.6–5 V) with a maximum total output current of 200 mA. The proposed converter has been fabricated in a 0.35-lm p-substrate CMOS technology. Measurement results demonstrate that a peak power effic...

The optimal control problem of a switching DC-DC converter is considered in this paper. An LQ (Linear Quadratic) type performance index of the error between the current state variables and the target working point is defined. The feedback control on the decision variable of the duty cycle frequency is then formulated as a minimization of an appropriate Hamiltonian function of which suboptimal s...

This paper first presents open loop behavior of buck boost and cuk dc-dc converter operated under Continuous conduction mode (CCM). This is achieved withthe help of state equations and MATLAB/SIMULINK tool for simulation of those state equations. Using the knowledge of open loop converter behavior, a closed loop converter is designed. DC-DC converter will be designed for specific line and load ...

Most of the power electronic equipments are operated with dc supply. For reliable and stable operation, dc supply should be regulated. The regulation can be performed using buck, boost, Cûk, Sepic, Flyback regulators. Except single phase rectifier with resistive load all other rectifiers input currents are non sinusoidal in nature. This front end current distortion of rectifier converter leads ...

Most of the power electronic equipments are operated with dc supply. For reliable and stable operation, dc supply should be regulated. The regulation can be performed using buck, boost, Cûk, Sepic, Flyback regulators. Except single phase rectifier with resistive load all other rectifiers input currents are non sinusoidal in nature. This front end current distortion of rectifier converter leads ...

Various controlling schemes are used in dc-dc converters to control the output voltage, rise time, peak time and settling time of the response. In this paper, fuzzy logic and PID control technique are studied on Buck-Boost converter and the mentioned parameters are analyzed. The model is developed in MATLAB/Simulink.

This paper presents a Selective Harmonic Elimination-PWM technology (SHE-PWM) employing H-Bridge multilevel inverter configuration. In this method variable DC voltage is used and the lower order harmonics are eliminated, without affecting the structure of the inverter. This method gives constant switching angle, so it reduces the number of steps required for offline calculation. The proposed me...

For mobile back-lighting applications, a dual-input white LED (WLED) driver using a bi-direction buck-boost converter is proposed in this paper. The proposed driver has two input terminals: battery input Vin1 and solar-cell input Vin2. Unlike conventional drivers using boost converters, step-up SC DC-DC converters, and so on, the proposed converter drives the anode and the cathode of LEDs by us...