Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.
Current sensing device and method using current transformer
A current sensing apparatus includes: a temperature sensor configured to sense a temperature of a power converter; a current sensing unit configured to sense an input current of the power converter; and a central processing unit (CPU) configured to control an operation of the power converter in response to the sensed temperature of the power converter and the sensed input current of the power converter. The CPU includes a compensation unit configured to store, upon receiving an indication of the sensed temperature of the power converter from the temperature sensor, an operation voltage of at least one diode included in the current sensing unit in a map, and to compensate for an error of a sensing current based on the stored operation voltage when the current sensing unit senses the input current.
Hyundai Motor Company
G G
G01R G01R
inventional inventional
Je Hwan Sang Cheol Seong Min Jin Myeong Han Geun Youn Sik
Lee Shin Lee Yang Jang Lee