JPH03273894A - Controller for drive circuit of direct-current motor - Google Patents

Controller for drive circuit of direct-current motor

Info

Publication number
JPH03273894A
JPH03273894A JP2070976A JP7097690A JPH03273894A JP H03273894 A JPH03273894 A JP H03273894A JP 2070976 A JP2070976 A JP 2070976A JP 7097690 A JP7097690 A JP 7097690A JP H03273894 A JPH03273894 A JP H03273894A
Authority
JP
Japan
Prior art keywords
circuit
level
ocl
overcurrent
switching element
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
JP2070976A
Other languages
Japanese (ja)
Other versions
JP2910135B2 (en
Inventor
Yoshiro Kato
Yasuhito Mori
Nahoko Taki
Tsugunori Sakata
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.)
Toyota Industries Corp
Original Assignee
Toyoda Automatic Loom Works 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 Toyoda Automatic Loom Works Ltd filed Critical Toyoda Automatic Loom Works Ltd
Priority to JP2070976A priority Critical patent/JP2910135B2/en
Publication of JPH03273894A publication Critical patent/JPH03273894A/en
Application granted granted Critical
Publication of JP2910135B2 publication Critical patent/JP2910135B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To limit an overcurrent securely and easily by turning a chopper switching element off once or more with a fixed time longer than a chopper period as one unit time on the basis of the result of the judgement of an overcurrent limitation judgement means.
CONSTITUTION: If the level of a motor current passed through a DC motor M becomes high and the motor current detection signal of a current detection amplification circuit 1 exceeds reference voltage V1 at an overcurrent limitation(OCL) level, the output level of the comparator 6 of an OCL judgement circuit 2 becomes high. Thereby the output level of the AND circuit 12 of an OCL signal control circuit 3 becomes high, a timer 13 is operated, and a low-level OCL signal is transmitted from the inverted output terminal (b) of the timer 13. Then a switching element Q1 is turned off with a gate circuit 4 and a switching element drive circuit 5, an overcurrent is limited, and the motor current is decreased.
COPYRIGHT: (C)1991,JPO&Japio
JP2070976A 1990-03-20 1990-03-20 DC motor drive circuit controller Expired - Fee Related JP2910135B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2070976A JP2910135B2 (en) 1990-03-20 1990-03-20 DC motor drive circuit controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2070976A JP2910135B2 (en) 1990-03-20 1990-03-20 DC motor drive circuit controller

Publications (2)

Publication Number Publication Date
JPH03273894A true JPH03273894A (en) 1991-12-05
JP2910135B2 JP2910135B2 (en) 1999-06-23

Family

ID=13447062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2070976A Expired - Fee Related JP2910135B2 (en) 1990-03-20 1990-03-20 DC motor drive circuit controller

Country Status (1)

Country Link
JP (1) JP2910135B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006197670A (en) * 2005-01-11 2006-07-27 Alps Electric Co Ltd Motor drive controller
JP2008042975A (en) * 2006-08-02 2008-02-21 Rohm Co Ltd Motor drive circuit and electronic apparatus using it
JP2008220032A (en) * 2007-03-02 2008-09-18 Oriental Motor Co Ltd Inductance load controller
JP2010161914A (en) * 2009-01-09 2010-07-22 Sanyo Electric Co Ltd Motor driver circuit
WO2020133637A1 (en) * 2018-12-29 2020-07-02 上海理工大学 Parallel excitation dc motor driving device and electric equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6355796U (en) * 1986-09-26 1988-04-14
JPH01202197A (en) * 1988-02-05 1989-08-15 Aisin Seiki Co Ltd Motor driver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6355796U (en) * 1986-09-26 1988-04-14
JPH01202197A (en) * 1988-02-05 1989-08-15 Aisin Seiki Co Ltd Motor driver

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006197670A (en) * 2005-01-11 2006-07-27 Alps Electric Co Ltd Motor drive controller
JP2008042975A (en) * 2006-08-02 2008-02-21 Rohm Co Ltd Motor drive circuit and electronic apparatus using it
JP2008220032A (en) * 2007-03-02 2008-09-18 Oriental Motor Co Ltd Inductance load controller
JP2010161914A (en) * 2009-01-09 2010-07-22 Sanyo Electric Co Ltd Motor driver circuit
WO2020133637A1 (en) * 2018-12-29 2020-07-02 上海理工大学 Parallel excitation dc motor driving device and electric equipment
US11394278B2 (en) 2018-12-29 2022-07-19 University Of Shanghai For Science And Technology Shunt wound DC motor driving device and electrical equipment

Also Published As

Publication number Publication date
JP2910135B2 (en) 1999-06-23

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees