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Equivalent circuit of class D amplifier taking into account parasitic parameters

Simulation of conducted interferences of class D amplifier

Yu. A. Onikienko


It is proposed an approximate approach to simulation of conducted interferences of amplifier of class D on a basis of equivalent circuit with elements, defining generation and propagation of conducted interferences. For calculation we use amplitude, output voltage pulse repetition cycle and duration, and also pulse rise time. Calculation results in the whole correspond to experimental data.


electromagnetic compatibility; simulation of electromagnetic interferences; amplifier of class D

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Radio disturbance characteristics for the protection of receivers used on board vehicles, boats, and on devices — Limits and methods of measurement. CISPR. 25 Edition. 3.0 2008, March 2008.

VEKSLER, G.S.; NEDOCHETOV, V.S.; PILINSKIY, V.V. Suppression of Electromagnetic Interferences in Power Circuits. Kyiv: Tekhnika, 1990 [in Russian], 167 p.

GONZALEZ, D.; GAGO, J.; BALCELLS, J. New simplified method for the simulation of conducted EMI generated by switched power converters. IEEE Trans. Ind. Electron., v.50, n.6, p.1078-1084, Dec. 2003. DOI:

ZHAO, DONGSHENG; FERREIRA, BRAHAM; ROC’H, A.; LEFERINK, F. Hierarchical EMC analysis approach for power electronics applications. Proc. of IEEE Conf. on Power Electronics Specialists, PESC 2008, 15–19 Jun. 2008, Rhodes, Greece, 2008, p.1176-1182. DOI:

LE BUNETEL, J.-C.; GONZALEZ, D. Design of power supply in function of EMI assessment. Proc. of IEEE Int. Symp. on Industrial Electronics, ISIE 2007, 4–7 Jun. 2007, Vigo, Spain. Vigo, 2007, p.2540-2543. DOI:

ESPINA, J.; BALCELLS, J.; ARIAS, A.; ORTEGA, C.; BERBEL, N. EMI model of an AC/AC power converter. Proc. of IEEE Conf. on Vehicle Power and Propulsion, VPPC, 1–3 Sept. 2010, Lille, France, 2010, p.1-6. DOI:

FOISSAC, M.; SCHANEN, J.L.; VOLLAIRE, C.J. Compact EMC model of power electronics converter for conducted EMC studies in embedded networks. J. Automotive Power Electronics, 2009.

LI, HONGYU; POMMERENKE, D.; PAN, WEIFENG; XU, SHUAI; REN, HUASHENG; MENG, FANTAO; ZHANG, XINGHAI. Conducted EMI simulation of switched mode power supply. Proc. of IEEE Int. Symp. on Electromagnetic Compatibility, EMC, 17–21 Aug. 2009, Austin, TX, 2009, p.155-160. DOI:

BISHNOI, H.; BAISDEN, A.C.; MATTAVELLI, P.; BOROYEVICH, D. EMI modeling of half-bridge inverter using a generalized terminal model. Proc. of IEEE Conf. on. Applied Power Electronics Conference and Exposition, APEC, 6–11 Mar. 2011, Fort Worth, TX, 2011, p.468-474. DOI:

ONIKIENKO, Y.A.; PILINSKY, V.V.; SHVAICHENKO, V.B. Analysis of influence of parameters of power sources and signal on a level of conducted interferences of class D amplifier. Tekhnichna Elektrodynamika, Spesial Issue “Sylova Elektronika i Energoefectyvnist,” Part 1, p.70-74, 2012.

ADAMI, S.E.; MRAD, R.; MOREL, F.; VOLLAIRE, C.; PILLONNET, G.; CELLIER, R. Conducted EMI of integrated switching audio amplifier for mobile phone applications. Proc. of IEEE Conf. on Electromagnetic Compatibility of Integrated Circuits, EMC Compo, 6–9 Nov. 2011, Dubrovnik, Croatia, 2011, p.142-147. INSPEC: 12488436.

ONIKIENKO, Y.; PILINSKY, V.; PROBITY, D.; SHVAYCHENKO, V. Simulation of electromagnetic environment of class D amplifier. Proc. of IEEE XXXIII Int. Sci. Conf. on Electronics and Nanotechnology, ELNANO, 16–19 April 2013, Kyiv, Ukraine. Kyiv, 2013, p.396-398. DOI:

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