The changes of inductors' inductances and resistances in inductive pulse power supply

Abstract

The inductors in an Inductive Pulse Power Supply (IPPS) may face with different charging or discharging paths, which may cause the changes of inductors' inductances and resistances. This paper uses experiment method to solve this problem. First, we take inductors to do under-damped oscillations with different pre-charged capacitors, and then measure the changing voltages of the capacitors. Under the conditions that the capacitances are known, the inductances and resistances can be obtained by fitting the voltages values with the under-damped oscillations function curves. Furthermore, the changing rules of the inductances and resistances with frequencies can be obtained, which may make the simulation of IPPS system more accurate. An application using the experiment results confirms the improvements of simulation accuracies.