Design of Pulse Spiral Inductor Wound by Rectangular Cross-Section Wire

Abstract

According to the structural characteristics of the spiral inductor wound by rectangular cross-section wire, a calculation model of pulse spiral inductor was established. A design method of pulse spiral inductor was presented, which takes inductance value, spatial size, and temperature rise as constraints, takes the volume, resistance and external magnetic flux density of the pulse spiral inductor as optimization objectives, adopted hierarchical screening method and weighted summation method to obtain the optimal number of spiral inductor turns. A $16~\mu $ H pulse spiral inductor for a pulsed power supply (PPS) was designed. Finally, the pulsed spiral inductor was manufactured according to the design size and the discharge test was carried out for several times, the structure of the pulse inductor was complete after the tests, and the experimental pulse current was consistent with the simulation current. The experiment shows the effectiveness of the pulse spiral inductor design method and has a strong practical significance.

Keywords

• Coils
• inductors
• pulsed power supplies