PPT-Switching Power Supply Design: EMI Reduction

Author Marc DavisMarsh Last Edited by Richard Garvey 51612 1 Table of Contents 2 EMI on TV Picture EMI Nonisolated Isolated Snubbers Component Selection 3 2011 National Semiconductor Corporation. Jro INTRODUCTIDN leekege inductence is often the lergest single factor in degrading the performance of a switching power supply The effects of leekage inductence in buck and boost regulfJtors differ markedly from flybeck buckboostJ circuits This pap This proposed spec defines limits for each harmonic component of the mains current thereby requiring power factor correction circuitry IEC 5552 har monic current limits are proportional to power input below 300W but current limits are absolute above Jump Start Guideline 1. Turn off the Power Supply for your safety, set the I/O switch on the back of power supply to the "O" status 2. Unplug the AC power cord from the power supply 3. Unplug all devi Voltage Biasing. Andy . Whetzel. and Elena Weinberg. University of Virginia. Agenda. Background. FinFET. technology. Problem and approach. Our design. I. mplementation. Results. Discussion. Conclusion. Electromechanics. 2013. J. Arthur Wagner, Ph.D.. Prof. Emeritus in EE. wagneretal@sbcglobal.net. Fig. 4.1 Voltage-link system. Vd. is the voltage-link, or dc-bus voltage. . Vd. “sits” between two AC systems.. Circuits. Dejan. . Marković. Borivoje. . Nikoli. ć. Chapter Outline. Optimization framework for energy-delay trade-off. Dynamic power optimization . Multiple supply voltages. Transistor sizing. Technology mapping. . Zois. CS @ USC. Profit – Optimal & Stability Aware Load Curtailment in Smart Grids. 1. Dynamic and . s. ophisticated demand control. Direct control over household appliances. Curtailment Reasons. Autonomous Air-Hockey Gaming Experience. Group 8:. Brian Thomas, EE. Efrain Cruz, EE. Loubens. Decamp, EE. Luis Narvaez, EE. Project Description. Autonomous robotic air hockey opponent:. Puck-return. Aarne Liski. Jere Kinnunen. Final presentation. Original problem description. The project is about designing an approximately 325VDC charger, that can output approximately 10A. Power is taken from a 230 VAC 16 A plug. The efficiency should be over 90% and the size of the charger should be minimized by using switching frequency as high as possible. The charger is designed for liquid cooling. The SMPS could be implemented for example with MOSFET-components. Literature: . A. Ball K. . Wiersma. N. Jen A. . Sterk. Reintroduction of project and problem. Major Design Decisions. Accomplishments. Obstacles. Summary. Outline. Our Project. Power Supply. Solid State Relays. Author: Marc Davis-Marsh. Last Edited by Richard Garvey, 5/16/12. 1. Table of Contents. 2. EMI on TV Picture. EMI. Non-isolated. Isolated. Snubbers. Component . Selection. 3. © 2011 National Semiconductor Corporation.. SECTIONS 1-7. By. Astha Chawla. Introduction. C and A are intertwined. P = V. 2 . . X f x C. effective.. ILP Frequency increase => Power problem!!. Factors affecting A:. Complexity of the processor. 7805.. 7805 is a 5V fixed three terminal positive voltage regulator IC. . The IC has features such as safe operating area protection, thermal shut down, internal current limiting which makes the IC very rugged. Output currents up to 1A can be drawn from the IC provided that there is a proper heat sink. . Outline. DC-DC conversion and voltage regulation. Buck: Regulating wall-wart/battery output to desired voltage. Boost: Size constrained systems (Run off single AAA, for example. ). Sources. Plugged-in.