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Showing 1 to 15 of 15 for “"EMI Filter Design"”.
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High-Density Discrete Passive EMI Filter Design for Dc-Fed Motor Drives
… (DM) and common mode (CM) noise using a passive filter in a dc-fed motor drive. Following a standard approach a baseline filter is first designed to be used as reference to understand and compare the available filter topologies. Furthermore, it is used to analyze the grounding scheme of EMI …
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Non-Intrinsic Differential-Mode Noise in Switching Power Supplies and Its Implications to EMI Filter Design
Electromagnetic Interference (EMI) problems in switching power supplies have been traditionally treated with cut-and-try approaches. In recent years, advancement has been made to better understand the problems and minimize the cut-and-try portion of the design process. However, there are still …
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Conducted EMI Noise Prediction and Filter Design Optimization
… is the stringent electromagnetic interference (EMI) regulation worldwide. For the CRM PFC converter, there are several challenges on meeting the EMI standards. First, for the CRM PFC converter, the switching frequency is variable during the half line cycle and has very wide range dependent on …
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Separation of the common-mode and the differential-mode conducted electromagnetic interference noise
… to 30 MHz. With the aid of the Noise Separator, EMI filter design is made easier.
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High Power Density and High Temperature Converter Design for Transportation Applications
… better packaging performance and more compact EMI filter design are analyzed and proposed for the goal of high power density converter design in transportation applications.
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Investigation on Interleaved Boost Converters and Applications
… today, the power factor correction (PFC) design is facing many challenges, such as power scalability, high entire-load-range efficiency, and high power density. Power scalability is a very desirable and cost-effective approach in the PFC design in order to keep up with servers' growing …
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Average current-mode control and charge control for PWM converters
… both voltage loop and current loop analysis and designs. Comprehensive design guidelines for PWM converters with both controls are also provided. The small-signal characteristics of these two controls are compared with those of peak current-mode control. The applications of ACM control and charge …
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Passive Component Weight Reduction for Three Phase Power Converters
… applications, high power density is the key design target, since increasing power density can reduce fuel consumption and increase the total system efficiency. While power electronics devices have greatly improved the efficiency, overall performance and power density of power converters, …
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Harmonic Reduction IN a Single-Switch Three-Phase Boost Rectifier With Harmonic-Injected PWM
… requirement, the rectifier voltage gain can be designed down to 1.45; to meet the IEC 1000-3-2 (A) standard, the output power can be pushed up to 10 kW for the application with a 3X220 V input and a 800 V output. The results are verified on a 6-kW prototype. The injection principle is …
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DM EMI Noise Analysis for Single Channel and Interleaved Boost PFC in Critical Conduction Mode
… current ripple in CRM PFC creates huge DM EMI noise, which requires a big EMI filter. The switching frequency of the CRM PFC is variable in half line cycle which makes the EMI characteristics of the CRM PFC are not clear and have not been carefully investigated. The worst case of the EMI …
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Modular Approach for Characterizing and Modeling Conducted EMI Emissions in Power Converters
… power electronics, electromagnetic interference (EMI) and electromagnetic compatibility (EMC) issues have become more and more important for both power converter designers and customers. This dissertation studies EMI noise emission characterization and modeling in power converters. A …
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Control Strategies for Minimizing the DC-Link Capacitance in Power Electronics Converters for Aircraft Electrical Power Systems
… Finally, the Electro-magnetic interference (EMI) filter design for the BSG based DC and AC systems are studied. The EMI filters are designed for different PECs such as two-quadrant DC chopper, diode rectifier, active rectifier, and four-leg inverter in the BSG based DC and AC systems. The …
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Investigation of High-density Integrated Solution for AC/DC Conversion of a Distributed Power System
… can dramatically reduce PFC inductor size, EMI filter size might be larger at higher switching frequency because of the change of noise spectrum. Since the relationship between EMI filter size and PFC switching frequency is unclear for industry, PFC circuits always operate with switching …
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PCB-Based Heterogeneous Integration of PFC/Inverter
… further improvements. Most products are custom designed with significant non-recurrent engineering and manufacturing processes that are labor intensive. In particular, conventional magnetic components, including transformers and inductors, have largely remained the same for the past five …
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A Compact Three-Phase Multi-stage EMI Filter with Compensated Parasitic-Component Effects
With the advent of wide bandgap (WBG) semiconductor devices, the electromagnetic interference (EMI) emissions are more pronounced due to high slew rates in the form of high dv/dt and high di/dt at higher switching frequencies compared to the traditional silicon technology. To comply with the …