A Review of Spread-Spectrum-Based PWM Techniques—A Novel Fast Digital Implementation
| Autor: | Lassaad Sbita, Rabiaa Gamoudi, Dhia Elhak Chariag |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Computer science
020209 energy Noise reduction 020208 electrical & electronic engineering 02 engineering and technology Electromagnetic interference Harmonic analysis Spread spectrum Reduction (complexity) Microcontroller Modulation Boost converter 0202 electrical engineering electronic engineering information engineering Electronic engineering Electrical and Electronic Engineering Frequency modulation Pulse-width modulation |
| Zdroj: | IEEE Transactions on Power Electronics. 33:10292-10307 |
| ISSN: | 1941-0107 0885-8993 |
| DOI: | 10.1109/tpel.2018.2808038 |
| Popis: | Spread-spectrum (SS)-based pulsewidth modulation (PWM) techniques play an important role when tackling the electromagnetic interference (EMI) problem in the switch-mode power supply (SMPS) domain. They achieve the best EMI noise reduction and emerge as a promising and very effective solution to comply with electromagnetic standards. The current work provides an insight into the SS techniques: its history, its types, and mainly its ability to mitigate the EMI problem in the SMPS domain. Moreover, it gives a short review of the different SS-based PWM techniques going from the most basic and simple, i.e., the periodic modulation, to the most developed and complex, i.e., the random and chaotic modulations. Besides, a short review of the different implementation methods was addressed and they were categorized into analog and digital implementation techniques where its pros and cons were provided. Finally, a new fast digital implementation method based on a dsPIC33F microcontroller is presented. Its effectiveness was proved and its advantages over the reviewed implementation techniques were recognized. It reached a 20 dBuV EMI level reduction when the digital chaotic and periodic profiles were embedded into a boost converter prototype. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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