591680.fig.001a
(a)
591680.fig.001b
(b)
591680.fig.001c
(c)
591680.fig.001d
(d)
Figure 1: (a) The Series inductor filters for current shaping, (b) The Ziogas inductor capacitor filter, (c) The Yanchao improvement on Ziogas filter, and (d) The Hussein improvement on Yanchao filter.