Design and Analysis of Pulsed Magnetic Core Circuits

摘要

The consideration of 'square loop' magnetic core switching waveforms is approached by separating the calculations into two parts, switching due to reversible flux change and switching due to irreversible flux change. A comparison is made between conventional core switching equations for irreversible flux change and both the actual case and the equations arising from the use of the Chen-Papoulis variable resistance function. A graphical means of calculating switching waveforms is presented which is applicable to linear, resistive core loading. Switching waveforms for reversible flux change are calculated by use of conventional circuit theory and an average coefficient of coupling between core windings. The variation of coupling with the variation of geometrical position of the windings and the state of magnetization of the core is considered. (Author)