Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

Voltage distortion in AC power systems causes unequal intervals between the firing pulses of the control angle in conventional converters, and through positive feedback, it amplifies the system voltage distortion, resulting in unstable rectifier operation. In inverters, continuous commutation failures may occur, preventing normal operation and even damaging commutation equipment.For star-connected transformers, third-order and triplen harmonics can cause third-harmonic oscillation when the windi

AC-DC converter circuit

Current-type digital-to-analog converter

This paper proposes and analyzes a two-stage dc-dc isolated converter for electric vehicle charging applications, where high efficiency over a wide range of battery voltages is required. The proposed conversion circuit comprises a first two-output isolation stage with CLLC resonant structure and a second two-input buck regulator. The transformer of the first stage is designed such that its two output voltages correspond, ideally, to the minimum and maximum expected voltage to be supplied to th

This article addresses this gap by presenting a comprehensive review of common dc-link MLCs, covering their topological evolution, features, topologies comparison, modulation techniques, control strategies, and industrial application areas. Additionally, future perspectives and recommendations are discussed to provide researchers and engineers with a better understanding of the potential applications and advantages of these converters.1.Introduction. Considering the major evolutionary stages o