A rectangular pulse current generator for calibration of magnetic field sensor

Abstract

In order to study the calibration of magnetic field sensor, a compact rectangular pulse current generator(RPCG) is developed. Based on the LC network, the influence of loop parameters on rectangular pulse current waveform is studied using the software Multisim. The relationship between peak current, peak duration time and circuit parameters such as charging voltage, the number of links, inductor and its internal resistance, capacitor and load resistor are summarized. At the same time, a rectangular pulse current generator is designed to meet the project’s requirements. The maximum output current is 10 kA, and the peak duration time is 2 ms. The actual test results show that the waveform is in good agreement with the simulation analysis. The method can provide a reference and theoretical basis for a rectangular wave generator (including a voltage generator).