Electric current detection apparatus of low voltage dc-dc converter for electric vehicle

Abstract

Disclosed is an electric current detection apparatus of a low voltage DC-DC converter for an electric vehicle, including: a low voltage DC-DC converter (LDC) which converts a voltage of an electric power source applied from a high voltage battery into a low voltage; a current transformer (CT) which is provided at a front terminal of a main voltage transformer to convert an electric current value of an input terminal of the main voltage transformer; and a calculation unit which calculates an electric current value of an output terminal of the main voltage transformer by receiving an output side electric current of the current transformer. The electric current detection apparatus may detect an output electric current of the low voltage DC-DC converter without using a high priced electric current sensor.

Dependencies are inferred from the claim text.