A Suprachoroidal Electrical Retinal Stimulator Design for Long-Term Animal Experiments and In Vivo Assessment of Its Feasibility and Biocompatibility in Rabbits

<table>Operation of switch circuitry in stimulation and battery charging modes. When no data were loaded on 2.5 MHz carrier, CLK was logic high, therefore switch Q1 would be turned off, and the
voltage of “a” node would be logic low, so switch Q2 would be turned on (battery recharging mode). If any data were loaded 
on 2.5 MHz carrier, the CLK would recover and the voltage of node “a” never went
below the threshold of switch Q2, so Q2 was turned off, this would be disabling
the charger chip period (stimulation mode).</table>

BioMed Research International

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Figure 3

Figure 3: A Suprachoroidal Electrical Retinal Stimulator Design for Long-Term Animal Experiments and In Vivo Assessment of Its Feasibility and Biocompatibility in Rabbits 

Figure 3 | A Suprachoroidal Electrical Retinal Stimulator Design for Long-Term Animal Experiments and In Vivo Assessment of Its Feasibility and Biocompatibility in Rabbits 