The power supply device that the IN ELECTORDES that common-mode signal is applied are connected to nervous activity recorder is reduced for nervous activity recorder
The common-mode signal of the voltage of the detection electrode and normal electrode that are connected from nervous activity record note, nervous activity record is carried out in conjunction with DC power supply, the common mode for improving the nervous activity record phase eliminates the vehicle east voltage generator of the common mode creation signal coupler and DC power supply that take.