Simplified method for calculating taper winding’s induction coefficient matrix of pulse transformer

The calculation of the voltage distribution of pulse transformer’s taper winding with more than 4 000 turns is difficult, for the workload of calculating induction coefficient matrix is very heavy. In order to reduce the workload, the characteristics of the induction coefficient matrix were studied. The reults show that the self-induction coefficient of the middle turns of the taper winding increase linearly except for the end turns and the mutual induction coefficient decrease rapidly with the inturn-distance increasing. A simplified method for the simulation of multi-turns tape winding is brought forward, which can reduce the calculation steps from n(n+1)/2 to 2n+25, where n is the turns of the winding.