Simple piecewise-linear diode model for transient behaviour

Abstract

Transient behaviour of a pn-junction diode can be correctly predicted by a simple piecewise-linear model comprising one linear resistor and one linear capacitor under forward bias and only a linear capacitance under reverse bias. These are selected by a voltage-controlled switch which is the only nonlinear element. Starting from solid-state analysis, an algorithm is developed for extracting values for model parameters from measurements. Simulation and experimental results confirm the accuracy of the model, the great strength of which is that it allows analytical results to be obtained for the complicated and chaotic nonlinear phenomena in series-resonant converters and other practical electronic circuits.

Generating 3-Scroll Attractors From One Chua Circuit

“…The equation (3)- (4) is piecewise-linear, which simplifies its circuitry realization. This fact is very important because many works have been devoted to building simple electronic chaotic circuits with piecewise-linear functions [Chua & Lin, 1990;Altman, 1993;Hartley & Mossaybei, 1993; Karadzinov et al, 1996;Aziz-Alaoui, 1999;Sprott, 2000]. This situation is quite interesting both theoretically and practically in terms of new chaos generation techniques and possible engineering applications of chaos.…”

“…Piecewise linear chaotic systems, for example [Altman, 1993;Chua et al, 1986;Aziz-Alaoui, 1999;Sprott, 2000;Zeraoulia, 2006Zeraoulia, , 2007, are used to construct simple electronic circuits with applications in electronic engineering, especially in secure communications [Kal'yanov, 2003;Karadzinov et al, 1996;Mahla & Palhares, 1993]. Circuits also provide a very useful vehicle for studying chaos as well as easy applications.…”

Mitigation of Deane and Hamill phenomenon in gallium nitride high‐voltage power supply for electric propulsion system application

“…The commonly used micro-model [31] is cumbersome for analysing DH phenomenon due to its complexity, the PWL diode model is adopted here as it resembles a close approximation to the transient behaviour of the diode [19]. The comparison between micro-model and PWL diode model are shown in Figure 5.…”

“…Some of them investigates the impact of diodes on the voltage-frequency relationship, the equivalent circuit model, and derivative circuits of the converter [18]. Few works have been reported on the unusual selfsustained quasi-periodic oscillating voltage and current waveforms of the step-up resonant converter [19][20][21]. They are amplitude-modulated at a frequency apparently unrelated to the switching frequency, which is commonly referred to as Deane and Hamill (DH) phenomenon [22].…”