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. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: IEEE J Solid-State Circuits. 2013 Sep;48(9):2203–2216. doi: 10.1109/JSSC.2013.2266862

Fig. 20.

Fig. 20

Measured stimulation waveforms from the in vitro experiments showing (a) adaptive supply control with different stimulation currents, active charge balancing, and (b) multi-channel stimulation capability.