Abstract

Functional electrical stimulation (FES) is widely used in rehabilitative therapies such as restoration of motor function for post-stroke and other types of paralysis. Here we present the design of an FES current controlling module which can be directly connected with micro-controllers to provide repetitive rehabilitation therapies. The key features in this module are the ability to generate customized pulse trains, interfacing with the computer, and low cost. The results show that the output current is independent of the load and the current can be controlled 0 – 25 mA at 40 Hz frequency.

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