Title:
CIRCUIT FAILURE DETECTOR, ELECTRIC VEHICLE CHARGING CONTROLLER INCLUDING SAME, AND CIRCUIT FAILURE DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/030749
Kind Code:
A1
Abstract:
The present invention relates to a circuit failure detector comprising: an input terminal for receiving a detection signal having a first frequency from an interlock circuit; a correction circuit for correcting the voltage of the received detection signal; a first comparator comparing the corrected detection signal with a first reference voltage and outputting a high voltage signal or a low voltage signal; a second comparator inverting the corrected detection signal, comparing the inverted detection signal with a second reference voltage, and outputting the high voltage signal or the low voltage signal; a counting signal generator for generating a counting signal having a second frequency; a first coupler for coupling an output signal of the first comparator with the counting signal; a second coupler for coupling the output signal of the second comparator with the counting signal; and a controller for detecting a circuit failure on the basis of the output signal of the first coupler and the output signal of the second coupler.
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Inventors:
LEE KWAN SOO (KR)
Application Number:
PCT/KR2017/008545
Publication Date:
February 15, 2018
Filing Date:
August 08, 2017
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
B60L3/00; B60L11/18; G01R19/165; G01R19/252; G01R31/00; G01R31/50
Foreign References:
| KR19990021652A | 1999-03-25 | |||
| JPH1062458A | 1998-03-06 | |||
| JP2015091157A | 2015-05-11 | |||
| KR20130142909A | 2013-12-30 | |||
| KR20110122302A | 2011-11-10 |
Other References:
See also references of EP 3499251A4
Attorney, Agent or Firm:
YOON & YANG (IP) LLC (KR)
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