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Power supply inductance and plane capacitance configuration

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In this tool, If we set the quantity of all capacitors to zero and retain only the "plane capacitance" and "power supply" field values, the impedance plot exhibits a single sharp peak.

This peak occurs at the resonant frequency determined by the interaction between the power plane inductance and the plane capacitance.

Since the impedance peak is upward-facing, resembling the behavior of a parallel RLC circuit, I would like to understand how the power supply inductance and plane capacitance form a parallel configuration. Could you clarify this relationship?
 

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