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. Author manuscript; available in PMC: 2016 May 22.
Published in final edited form as: Conf Proc IEEE Eng Med Biol Soc. 2012;2012:292–295. doi: 10.1109/EMBC.2012.6345927

Fig. 4.

Fig. 4

Upper trace: typical output of the HD retinal micro-stimulator ASIC when powering an electrode modeled as a series RC circuit. Lower trace: an end-of-stimulus pulse, upon which the electrode is shorted to ground.