DEVICE FOR DETECTING A NEUTRAL LINE OF A POWER SOURCE CAPABLE OF DETECTING A POWER LINE WITH A GROUND POTENTIAL FROM POWER LINES WHICH SUPPLY POWER TO TWO KINDS OF ELECTRONIC DEVICES

摘要

PURPOSE: A device for detecting a neutral line of a power source is provided to supply safe grounding.;CONSTITUTION: A connection point(TP1) is connected to one of two power lines. An electric field detecting unit detects an electric field induced from power applied through the connection point. A first switching unit(Q11) is switched by a signal outputted from the electric field detecting unit. A second switching unit(Q12) operates in association with the operation of the first switching unit. A control unit(10) recognizes a signal of the second switching unit to determine whether a neutral line is connected. An indicating unit(20) indicates whether a neutral line is connected by a signal of the control unit.;COPYRIGHT KIPO 2011