Patent ID: 11913974
Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 0:
1. A current transformer circuit for current measurement and ringing suppression, comprising:
a magnetic core current transformer comprising a magnetic core material and having a winding; and
an RLC filter comprising a capacitor having a capacitance Cp, an inductor having an impedance Lp and a resistor having a resistance Rp, the RLC filter connected to the winding of the magnetic core current transformer and a burden resistor;
wherein the Cp, Lp and Rp and the magnetic core material are selected such that combined influence of the Cp, Lp and Rp and the magnetic core material suppress ringing in a target frequency range; and
wherein the current measurement is observed from the voltage expressed across the burden resistor.