Patent ID: 7738273

Claim:
A power detecting apparatus comprising: a connector device for connecting a power output device and an electric load to each other, the connector device comprising: a first connecting portion to which the power output device having an output terminal to output a prescribed power and a ground terminal is connected; and a second connecting portion to which the electric load having a positive terminal and a negative terminal is connected, wherein the first connecting portion has a power input terminal to which the output terminal is connected and an input side ground terminal to which the ground terminal is connected respectively, the second connecting portion has a power output terminal to which the positive terminal is connected and an output side ground terminal to which the negative terminal is connected respectively, the power input terminal and the power output terminal are connected by a first connecting line, the input side ground terminal and the output side ground terminal are connected by a second connecting line, and the first connecting line and the second connecting line are connected via a rectifier element which passes current only in a direction from the second connecting line to the first connecting line; and a power detecting means which detects power which is output by the power output device to the first connecting portion side, wherein the power detecting apparatus detects power which is output to the electric load that is connected to the second connecting portion.