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Switching operations of the DC-DC converter is the major source of electromagnetic emission (EMI) of power management circuits. In this paper, a design guideline for inductive snubber circuit is developed to reduce EMI of DC-DC converter. A switching loop of the DC-DC converter is modeled and ringing noise on the switching node is analyzed. Circuit schematic simulation is performed to verify the effectiveness...
The electromagnetic interference (EMI) generated from the DC-DC buck converter effects the performance of integrated circuits which receive power supply from the buck converter. In this paper, the EMI reduction techniques of DC-DC buck converter are presented. The damping resistor is applied to reduce the output noise of the buck converter. In time domain, this damping resistor technique reduces the...
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