CONTROL LINE DIAGNOSTIC APPARATUS

Title:

CONTROL LINE DIAGNOSTIC APPARATUS

Document Type and Number:

WIPO Patent Application WO/2017/034144

Kind Code:

A1

Abstract:

A control line diagnostic apparatus according to an embodiment of the present invention is a drive circuit for driving a drive load by flowing a current from a first high potential node to a first low potential node through a control line when a drive switch is turned on, and is an apparatus for diagnosing the control line of a drive circuit in which the potential of the drive switch is higher than the potential of the drive load. The control line diagnostic apparatus comprises: a first diagnostic line which has one end connected to a first node formed on the control line and the other end connected to a second high potential node, and comprises a first resistor, a second resistor and a first diode which are connected in series to each other; a second diagnostic line which has one end connected to the first node and the other end connected to a second low potential node, and comprises a third resistor; a voltage measurement unit for measuring the voltage of a second node formed between the first resistor and the second resistor; and a control unit for controlling the drive switch so as to set a predetermined operation mode and diagnosing the state of the control line by using the voltage value of the second node measured by the voltage measurement unit in the set operation mode, wherein the first diode may be provided on the first diagnostic line so as to allow a current to flow from the second high potential node to the first node.

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Inventors:

KIM WOO-JUNG (KR)
KIM TAE-YOUN (KR)

Application Number:

PCT/KR2016/007140

Publication Date:

March 02, 2017

Filing Date:

July 01, 2016

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

G01R31/327; G01R19/165; G01R31/36; G01R31/58

Foreign References:

KR101458128B1	2014-11-12
US20150219705A1	2015-08-06
KR20070114279A	2007-11-30
KR20080056654A	2008-06-23
US20140300377A1	2014-10-09

Attorney, Agent or Firm:

PHIL & ONZI INT'L PATENT & LAW FIRM (KR)

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