(a)
(b)
(c)
(d)
(e)
Figure 6: Experimental results of the incremental type emulator when  nF. (a) waveforms of the input voltage and input current in the time domain; (b), (c), (d), and (e) represent hysteresis loops in - plane operating at 10 Hz, 50 Hz, 100 Hz, and 7 Hz, respectively. The time scale is 40 ms/div, and scales are 0.2 V/div for -axis and 0.2 V/div for -axis.