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. Author manuscript; available in PMC: 2015 Aug 1.
Published in final edited form as: IEEE Trans Biomed Eng. 2014 Aug;61(8):2254–2263. doi: 10.1109/TBME.2014.2300860

Fig. 1.

Fig. 1

Three different current waveforms are shown with control. Test waveforms are given for one transition length as an example. Time constants of the ExpInc and ExpCDF waveforms are one sixth of the corresponding transition length.