Name
Title | ||
|---|---|---|
Short-term Optimized Spread Spectrum Clock Generator for EMI Reduction in Switching DC/DC Converters |
Abstract | ||
|---|---|---|
We present here a prototype of a Spread Spectrum Clock Generator designed for switching DC/DC converters, which has been optimized in accordance to EMC international regulations to improve EMI reduction with respect to standard approaches. Such an optimization has been obtained trough the theoretical computation of the power spectrum as measured by a spectrum analyzer when a chaotic or random-like PAM modulating signal is employed. To experimentally validate the achieved theoretical results, the circuit has been fabricated in CMOS 0.18 μm technology, and embeds two simple and effective modulators, the first one relying on a full analog hardware, the second one on a simple digital core. Measurements on a DC/DC converter in accordance with EMC regulations confirm that the prototype can achieve a 7 dB EMI reduction improvement with respect to classical solutions based on out of audible triangular waveforms. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/TCSI.2014.2327273 | Circuits and Systems I: Regular Papers, IEEE Transactions |
Keywords | DocType | Volume |
CMOS integrated circuits,DC-DC power convertors,clocks,electromagnetic interference,pulse amplitude modulation,switching convertors,CMOS 0.18 μm technology,EMC international regulations,EMI reduction,audible triangular waveforms,chaotic PAM modulating signal,modulators,power spectrum,random-like PAM modulating signal,size 0.18 mum,spectrum analyzer,spread spectrum clock generator,switching DC-DC converters,DC/DC converters,EMI reduction,spread spectrum clock generator | Journal | 61 |
Issue | ISSN | Citations |
10 | 1549-8328 | 6 |
PageRank | References | Authors |
0.50 | 13 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Fabio Pareschi | 1 | 226 | 32.16 |
| Gianluca Setti | 2 | 478 | 71.19 |
| Riccardo Rovatti | 3 | 377 | 54.32 |
| Giovanni Frattini | 4 | 52 | 7.19 |