engleski

EMC-Oriented Design of Output Stage of Synchronous Buck Converter

Electromagnetic interference generated by synchronous buck converters may violate the limits specified in the regulations. A design of the output stage of synchronous buck converters in which two pairs of the high-side (HS) and low- side (LS) field effect transistors (FETs) are placed in a LS-HS-HS-LS configuration is proposed. Two converters with the discrete components are designed to evaluate the proposed configuration. The measurements performed by a transverse electromagnetic (TEM) cell show that the converter with the proposed configuration generates significantly smaller radiated fields than the converter with the conventional configuration of the output stage.

electromagnetic emissions, dipole moments, radiated emissions, switched-mode power supplies

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