Transcranial Electro Stimulation Apparatus Comprising Constant Current Control Circuit

摘要

The present invention relates to a Transcranial Electro Stimulation (TES) device. Specifically, the present invention relates to a Transcranial Electro Stimulation (TES) device including a circuit for controlling a constant current using a variable resistor. The transcranial electrical stimulation apparatus according to an embodiment of the present invention includes a constant current generator including at least one constant current source outputting a constant current, a first current control circuit and a control unit connected to a first constant current source among at least one constant current source. The first current control circuit includes a first variable resistance unit for generating a first voltage corresponding to a constant current, an operational amplifier in which the first voltage is applied to a non-inverting input terminal, and a feedback voltage is applied to the inverting input terminal, and And a second variable resistor to which a feedback voltage is applied.