  The time domain analysis of eddy current problems often requires the
simulation of long time intervals, e.g. until a steady state is reached.
Fast-switching excitations e.g. in pulsedwidth modulated signals require in
addition very small time step sizes that significantly increase computation
time. To speed up the simulation, parallel-in-time methods can be used. In this
paper, we investigate the combination of explicit and implicit time integration
methods in the context of the parallel-in-time method Parareal and using a
simplified model for the coarse propagator.
