China
Africa
Explore chapters and articles related to this topic
Semiconductor Physics and Devices
Published in Manoj Kumar Majumder, Vijay Rao Kumbhare, Aditya Japa, Brajesh Kumar Kaushik, Introduction to Microelectronics to Nanoelectronics, 2020
Manoj Kumar Majumder, Vijay Rao Kumbhare, Aditya Japa, Brajesh Kumar Kaushik
Generally, a clamper is an RC circuit that consists of a diode and a capacitor. The diode changes its configuration, i.e., open or closed switch depending on the input applied. In order to clearly understand the clamper operation, let us consider the clamper shown in Figure 1.20. This clamper consists of a capacitor in series with diode. The input to the clamper is applied to the capacitor and the output is measured across the diode, as shown in Figure 1.20. Here, we are applying a square wave as an input to the clamper. The operation can be explained in terms of the applied positive and negative half cycles at the input.
Interleaved converter with ultra-high voltage gain for DC microgrid application
Published in International Journal of Electronics, 2023
Rezvan Fani, Nasser Erfani Majd
In this paper, a novel non-isolated interleaved ultra-high step up converter was presented. In order to reach higher DC Voltage gains, interleaved technique, coupled inductors and lift technique are combined. The operation principle, voltage gain and stresses of switches and diodes are analysed, comprehensively. This converter reaches a high conversion ratio without large turn ratio or large duty cycle. However, leakage inductances of the coupled inductors and voltage stresses of semiconductor elements are reduced and conduction losses are allieviated. The clamp circuit is employed to restrict the voltage spikes of switches. Since diodes turn off at zero current, the reverse recovery problem is reduced. Using the interleaved structure at the input side of the proposed converter causes low input current ripple. A 100 W laboratory prototype ascertains the theoretical analysis.