### Abstract

In this paper, we propose a parameter optimization algorithm for EMC macro-modeling of IC/LSI power currents called the LECCS (Linear Equivalent Circuit and Current Source) model. The unnecessary electro-magnetic wave from a digital electronics device may cause the electromagnetic interference (EMI) to other apparatus. Thus, its reduction has been regarded as one of the highest priority issues in digital electronics device designs. In order to accurately simulate high-frequency currents from power-supply sources that are the primary sources of EMI, the LECCS model has been proposed as a linear macro-model of a power-supply circuit. A LECCS model consists of multiple RLC-series circuits in parallel to represent the equivalent circuit between the voltage source and the ground. Given a set of measured impedances at various frequencies, our proposed algorithm first finds the number of RLC-series circuits corresponding to the number of valleys. Then, it searches optimal values of RLC parameters by a local search method. The effectiveness of our algorithm is verified through applications to a real system, where the accuracy and the required processing time by our algorithm are compared with the conventional method.

Original language | English |
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Title of host publication | 17th International Zurich Symposium on Electromagnetic Compatibility, 2006 |

Pages | 304-307 |

Number of pages | 4 |

Volume | 2006 |

Publication status | Published - 2006 |

Event | 17th International Zurich Symposium on Electromagnetic Compatibility, 2006 - Singapore, Singapore Duration: Feb 27 2006 → Mar 3 2006 |

### Other

Other | 17th International Zurich Symposium on Electromagnetic Compatibility, 2006 |
---|---|

Country | Singapore |

City | Singapore |

Period | 2/27/06 → 3/3/06 |

### Fingerprint

### ASJC Scopus subject areas

- Engineering(all)

### Cite this

*17th International Zurich Symposium on Electromagnetic Compatibility, 2006*(Vol. 2006, pp. 304-307). [1629621]

**A LECCS model parameter optimization algorithm for EMC designs of IC/LSI systems.** / Funabiki, Nobuo; Nomura, Yohei; Kawashima, Jun; Minamisawa, Yuichiro; Wada, Osami.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*17th International Zurich Symposium on Electromagnetic Compatibility, 2006.*vol. 2006, 1629621, pp. 304-307, 17th International Zurich Symposium on Electromagnetic Compatibility, 2006, Singapore, Singapore, 2/27/06.

}

TY - GEN

T1 - A LECCS model parameter optimization algorithm for EMC designs of IC/LSI systems

AU - Funabiki, Nobuo

AU - Nomura, Yohei

AU - Kawashima, Jun

AU - Minamisawa, Yuichiro

AU - Wada, Osami

PY - 2006

Y1 - 2006

N2 - In this paper, we propose a parameter optimization algorithm for EMC macro-modeling of IC/LSI power currents called the LECCS (Linear Equivalent Circuit and Current Source) model. The unnecessary electro-magnetic wave from a digital electronics device may cause the electromagnetic interference (EMI) to other apparatus. Thus, its reduction has been regarded as one of the highest priority issues in digital electronics device designs. In order to accurately simulate high-frequency currents from power-supply sources that are the primary sources of EMI, the LECCS model has been proposed as a linear macro-model of a power-supply circuit. A LECCS model consists of multiple RLC-series circuits in parallel to represent the equivalent circuit between the voltage source and the ground. Given a set of measured impedances at various frequencies, our proposed algorithm first finds the number of RLC-series circuits corresponding to the number of valleys. Then, it searches optimal values of RLC parameters by a local search method. The effectiveness of our algorithm is verified through applications to a real system, where the accuracy and the required processing time by our algorithm are compared with the conventional method.

AB - In this paper, we propose a parameter optimization algorithm for EMC macro-modeling of IC/LSI power currents called the LECCS (Linear Equivalent Circuit and Current Source) model. The unnecessary electro-magnetic wave from a digital electronics device may cause the electromagnetic interference (EMI) to other apparatus. Thus, its reduction has been regarded as one of the highest priority issues in digital electronics device designs. In order to accurately simulate high-frequency currents from power-supply sources that are the primary sources of EMI, the LECCS model has been proposed as a linear macro-model of a power-supply circuit. A LECCS model consists of multiple RLC-series circuits in parallel to represent the equivalent circuit between the voltage source and the ground. Given a set of measured impedances at various frequencies, our proposed algorithm first finds the number of RLC-series circuits corresponding to the number of valleys. Then, it searches optimal values of RLC parameters by a local search method. The effectiveness of our algorithm is verified through applications to a real system, where the accuracy and the required processing time by our algorithm are compared with the conventional method.

UR - http://www.scopus.com/inward/record.url?scp=33751033874&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33751033874&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33751033874

SN - 3952299049

SN - 9783952299043

VL - 2006

SP - 304

EP - 307

BT - 17th International Zurich Symposium on Electromagnetic Compatibility, 2006

ER -