FPGA-Based High Precision and Low EMI Switching Power Supply Design

Shao Rong Zhang; Zhi Li; Ai Jun Zhu

doi:10.4028/www.scientific.net/AMM.496-500.1442

Paper Titles

Research Humanoid Robot Walking Based on Vision-Guided
p.1426

PLC-Based Network Control System of Nitrogen Pressure Machine
p.1430

A New Design of Laser Pulse Receiver in the Automatic Control System
p.1434

Service-Oriented Framework for Oil Fields Automation
p.1438

FPGA-Based High Precision and Low EMI Switching Power Supply Design
p.1442

Design of Temperature Controllor in Diamond Synthetic Chamber Based on Multi-Objective Particle Swarm Optimization
p.1448

Simulation Analysis of Vector Control of Fuzzy-PID System Based on Mine Fanner Load
p.1452

Research on the Network Based Protection to Settle the Distribution Networks Three-Phase Short-Circuit Faults with Distributed Generators
p.1457

An Ultrasonic Micro Scalpel Based on Exponential Horn Silicon Chip
p.1464

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 496-500FPGA-Based High Precision and Low EMI Switching...

FPGA-Based High Precision and Low EMI Switching Power Supply Design

Abstract:

We analyze the reasons why DC-DC switching power supply generates the electromagnetic interference (EMI), and through the FPGA control the digital-to-analog converter (DAC) to output the pulse width modulation (PWM) signal with high precision and slew rate controlled, the slew rates of the voltage and current of external N-channel MOSFET are controlled. So, dv/dt and di/dt can be decreased in the circuit; and the ripple noise and EMI of switching power supply are reduced vastly in this way. Experimental results show that the ripple noise of switching power supply could be reduced by 80% and EMI reduced 15dBμV. The experiment has proved that we can cut down the ripple noise and EMI of switching power supply by lessening the slew rates of the voltage and current of MOSFET switching tube.

You might also be interested in these eBooks

Frontiers of Manufacturing and Design Science IV

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 496-500)

Pages:

1442-1447

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.496-500.1442

Citation:

Cite this paper

Online since:

January 2014

Authors:

Shao Rong Zhang, Zhi Li, Ai Jun Zhu

Keywords:

DC-DC, di/dt, Dv/Dt, EMI, Noise, PWM

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] X.F. Liu, L.Q. Wang and P.J. Zhao. Investigate of electromagnetic interference suppression method for Switching power supply. Telecom Power Technologies, 2011, 3 (28): 53-55.

Google Scholar

[2] C. Zuo, Y. Hu and Y. Chang. The generation and suppression of electromagnetic interference in Switching power supply. Power Electronics, 2007, 1 (41): 78-80.

Google Scholar

[3] C. Bona, F.L. Fiori. A New Filtering Technique That Makes Power Transistors Immune to EMI. IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 26, NO. 10, OCTOBER (2011).

DOI: 10.1109/tpel.2010.2086489

Google Scholar

[4] J. Meng, W.M. Ma and L. Zhang. Method for analysis and modeling of conducted EMI in switching power converters. Chinese Journal of Mechanical Engineering, 2005, 5 (25): 49-54.

Google Scholar

[5] A. Bhargava, D. Pommerenke, K.W. Kam, F. Centola and C.W. Lam. DC-DC Buck Converter EMI Reduction Using PCB Layout Modification. IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, VOL. 53, NO. 3, AUGUST (2011).

DOI: 10.1109/temc.2011.2145421

Google Scholar

[6] S.B. Jiao, H.Z. Wu and Q. Zhang. Research on switching power supply controller based on the two-dimensional fuzzy PID FPGA. Power electronic technology , 2013, 4 (47): 17-18, 26.

DOI: 10.1109/fskd.2013.6816196

Google Scholar

[7] W. Zhang, C. Zeng and P.H. Wu. FPGA-based all-digital PWM system design. Power electronic technology , 2010, 12 (44): 53-55.

Google Scholar