Modeling and design of the EMI filter for DC-DC SiC-converter

Kotny, Jean-Luc; Duquesne, Thierry; Idir, Nadir

doi:10.1109/speedam.2014.6872003

Cited by 12 publications

(2 citation statements)

References 20 publications

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“…Beberapa solusi ditawarkan untuk dapat menekan nilai-nilai puncak komponen fundamental dan harmonik EMI sebuah konverter seperti melakukan perancangan konverter dengan kaidah tertentu, melakukan pemilihan komponen yang dapat menekan EMI, menggunakan tapis EMI, dan menerapkan teknik spread spectrum [13][14][15][16][17][18][19][20][21]. Pada teknik spread spectrum, konverter switching tidak hanya bekerja pada satu frekuensi tetap.…”

Section: Pendahuluanunclassified

Modifikasi Frekuensi Switching pada LED Driver Menggunakan Oscillator Lorenz Analog untuk Mereduksi Conducted EMI

Hariyawan,

Harpawi

2020

elementer

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Lampu light emitting diode (LED) menjadi semakin populer digunakan dalam berbagai macam aplikasi, karena penggunaan daya yang rendah, efisiensi yang tinggi dan perawatan yang rendah. Untuk mencapai efisiensi yang tinggi dalam transfer energi pada catu daya LED, diterapkan switched mode power supply (SMPS). SMPS diimplementasikan dengan pulse width modulation (PWM) yang beroperasi pada frekuensi konstan. Frekuensi switching konstan menghasilkan emisi yang signifikan di sejumlah frekuensi, emisi ini dinamakan electromagnetic interference (EMI). EMI yang dihasilkan termasuk di dalamnya frekuensi operasi fundamental catu daya dan harmoniknya melalui mekanisme conducted dan radiated. Sebagai akibatnya, SMPS berpotensi tidak bisa memenuhi standar electromagnetic compatibility (EMC). Modifikasi switching pada SMPS menggunakan teknik spread spectrum merupakan solusi yang murah dan berdaya guna dalam mitigasi EMI. Pada penelitian ini dilakukan modifikasi switching pada LED driver dengan sinyal chaotic Lorenz. Sinyal chaotic Lorenz diterapkan pada LED evaluation board kemudian dilihat kinerja EMI-nya dibandingkan saat LED driver bekerja dengan frekuensi konstan. Ketika diterapkan sinyal chaotic Lorenz terjadi penurunan level emisi EMI terbesar sebesar 16,5 dBÂµV.

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Section: Pendahuluanunclassified

Modifikasi Frekuensi Switching pada LED Driver Menggunakan Oscillator Lorenz Analog untuk Mereduksi Conducted EMI

Hariyawan,

Harpawi

2020

elementer

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“…Therefore, in the design of SiC drive circuit, how to reduce the electromagnetic interference in the circuit becomes a problem that cannot be ignored. Power engineers usually use buffering, filtering, resonance and other technologies to solve the electromagnetic compatibility of power products [6,7].…”

Section: Introductionmentioning

confidence: 99%

Analysis and research of EMI filter based on SiC power device

Zheng

2023

ACE

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The new electronic devices represented by SiC have brought new opportunities to improve the efficiency and power density of the drive circuit system. However, the complex circuit drive system using the new electronic devices still faces many challenges to give full play to its advantages. This paper focuses on the electromagnetic interference of drive circuit. Research on Filter Circuit, through in-depth study of the filter circuit, several second-order active circuits are proposed to filter the signal interference of the conduction path. Finally, an adjustable quality factor bandstop circuit is designed. The proposed circuit has good adjustment and feedback functions when filtering interference signals.

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Conducted emission mitigation in LED driver by chaotic modulation

Hariyawan

Posma

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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Light-emitting diode (LED) lamps are becoming popular in a wide range of applications, due to low power, high efficiency, and low maintenance. To achieve high efficiency in energy, transfer in the LED driver, a switched-mode power supply (SMPS) topology is applied. SMPS operates at a constant frequency; it generates significant emission in some of the frequencies through conducted and radiated mechanisms. Several solutions are proposed to mitigate the EMI (electromagnetic interference), such as converter design, component selection, EMI filtering, and spread spectrum techniques. Spread-spectrum is a cheap and efficient solution in the conducted emission mitigation. This research performs conducted emission mitigation by modifying the switching on the LED driver using chaotic signals. The Lorenz equation was selected to produce chaotic signals. The effect of EMI caused by the chaotic signal has been analyzed toward the performance of the system, compared with performance when periodic signals modulated it. Lorenz’s injection signals have reduced distribution over broader bandwidth compared to other injection signals. The average EMI reduction produced by Lorenz signal was the highest compared with other modulated signals of 10.63 dB.

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Modeling and design of the EMI filter for DC-DC SiC-converter

Cited by 12 publications

References 20 publications

Modifikasi Frekuensi Switching pada LED Driver Menggunakan Oscillator Lorenz Analog untuk Mereduksi Conducted EMI

Modifikasi Frekuensi Switching pada LED Driver Menggunakan Oscillator Lorenz Analog untuk Mereduksi Conducted EMI

Analysis and research of EMI filter based on SiC power device

Conducted emission mitigation in LED driver by chaotic modulation

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