JPS6078366A - Testing method of driving element - Google Patents

Testing method of driving element

Info

Publication number
JPS6078366A
JPS6078366A JP58185912A JP18591283A JPS6078366A JP S6078366 A JPS6078366 A JP S6078366A JP 58185912 A JP58185912 A JP 58185912A JP 18591283 A JP18591283 A JP 18591283A JP S6078366 A JPS6078366 A JP S6078366A
Authority
JP
Japan
Prior art keywords
driving element
supplied
abnormality
load
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP58185912A
Other languages
Japanese (ja)
Other versions
JPH0588430B2 (en
Inventor
Jiro Tanuma
Shinichi Katakura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP58185912A priority Critical patent/JPH0588430B2/ja
Publication of JPS6078366A publication Critical patent/JPS6078366A/en
Publication of JPH0588430B2 publication Critical patent/JPH0588430B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To detect the abnormality of a driving element before power is supplied to the load side, by providing the driving element itself with a detecting circuit which tests the driving element.
CONSTITUTION: A switching mechanism 16 is opened to cut off supply of a current to a load 2. Then, power is not supplied to the load 2 independently of the state of a driving element 3. The voltage of a bias voltage source 13 is applied to the collector part of the driving element 3 through a resistance 14 and a diode 15. A negative signal and a positive signal are supplied to the driving element 3 from a power supply indication terminal 9 in this state, and the collector voltage of the driving element 3 and a reference voltage 12 are compared with each other by a comparator 11, and the output of the comparator 11 is outputted to a trouble detecting terminal 10 to detect normality/abnormality of the driving element 3. Thus, the abnormality of the driving element is detected before power is supplied to the load side.
COPYRIGHT: (C)1985,JPO&Japio
JP58185912A 1983-10-06 1983-10-06 Expired - Lifetime JPH0588430B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58185912A JPH0588430B2 (en) 1983-10-06 1983-10-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58185912A JPH0588430B2 (en) 1983-10-06 1983-10-06

Publications (2)

Publication Number Publication Date
JPS6078366A true JPS6078366A (en) 1985-05-04
JPH0588430B2 JPH0588430B2 (en) 1993-12-22

Family

ID=16179049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58185912A Expired - Lifetime JPH0588430B2 (en) 1983-10-06 1983-10-06

Country Status (1)

Country Link
JP (1) JPH0588430B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9126808B2 (en) 2010-05-18 2015-09-08 Mitsubishi Electric Corporation Elevator control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9126808B2 (en) 2010-05-18 2015-09-08 Mitsubishi Electric Corporation Elevator control device

Also Published As

Publication number Publication date
JPH0588430B2 (en) 1993-12-22

Similar Documents

Publication Publication Date Title
JPS6078366A (en) Testing method of driving element
JPS6083418A (en) Protecting circuit of power switching transistor
JPH03103044A (en) Fault detecting system for diode in duplex power supply
JPS57123073A (en) Fault detecting device of thermal head
JPS6049417A (en) Overcurrent detecting circuit
JPS6222079A (en) Semiconductor integrated circuit device
JPS555252A (en) Method of detecting fault of tool in machine tool
JPH0452570A (en) Device for inspecting inverter main circuit switching element
JPS60138474A (en) Detecting circuit for abnormality of power supply voltage
JPH04222A (en) Ac high voltage power supply
JPS6032566A (en) Input monitoring circuit
JPH01166425A (en) Switch on/off condition detecting device
JPH02114827A (en) Backup power source equipment
JPH0265618A (en) Power source monitor
JPH02134581A (en) Testing system of power supply device restarting circuit
JPS58135471A (en) Fault detecting method of plural load driving circuit
JPH02136024A (en) Service interruption detection circuit
JPS6273315A (en) Current balance circuit
JPH01169371A (en) Voltage/current control circuit
JPS585674A (en) Detecting circuit for abnormality of power source to be detected
JPS59120866A (en) Power factor measuring apparatus
JPH02256113A (en) Switch for countermeasure for power cut
JPS59178616A (en) Detection for disconnection of magnetic head
JPS6091339A (en) Battery checking device of camera
JPS6093534A (en) Output device for control