JPH03273894A - Controller for drive circuit of direct-current motor - Google Patents
Controller for drive circuit of direct-current motorInfo
- 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
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
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)
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)
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 |
-
1990
- 1990-03-20 JP JP2070976A patent/JP2910135B2/en not_active Expired - Fee Related
Patent Citations (2)
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)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH03273894A (en) | Controller for drive circuit of direct-current motor | |
JPH03253220A (en) | Overcurrent protector | |
JPH0397315A (en) | Driving circuit for switching element | |
JPH04140068A (en) | Power source circuit | |
JPH03240110A (en) | Low voltage type temperature controller | |
JPH03273893A (en) | Controller for drive circuit of direct-current motor | |
JPH0270288A (en) | Detection apparatus of motor overload | |
JPH0365092A (en) | Brushless motor circuit provided with current limiting function | |
JPH02303580A (en) | Controller for drawing down position of brush roll | |
JPH0274150A (en) | Chopper | |
JPH02202370A (en) | Overcurrent protective circuit for inverter controller | |
JPH01311883A (en) | Constraining torque controlling circuit for motor | |
JPH02311198A (en) | Dc motor drive circuit | |
JPH0462785A (en) | Electric power supply for magnetron drive | |
JPH0421357A (en) | Switching regulator | |
JPH03261368A (en) | Switching power source | |
JPH04121083A (en) | Power window unit | |
JPH01268428A (en) | Automatic polarity switching circuit for dc power source | |
JPH04307612A (en) | Power source control system for portable terminal equipment | |
JPH02164222A (en) | Short circuit protective circuit | |
JPH02303354A (en) | Power source circuit | |
JPH04161092A (en) | Brushless motor controller | |
JPH03178553A (en) | Switching power supply | |
JPS54115723A (en) | Speed controller for dc motor | |
JPH0465178A (en) | Semiconductor laser driver |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |