JPS5731390A - Driving device for dc motor - Google Patents
Driving device for dc motorInfo
- Publication number
- JPS5731390A JPS5731390A JP10556280A JP10556280A JPS5731390A JP S5731390 A JPS5731390 A JP S5731390A JP 10556280 A JP10556280 A JP 10556280A JP 10556280 A JP10556280 A JP 10556280A JP S5731390 A JPS5731390 A JP S5731390A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- value
- current
- controlling
- integrating
- 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.)
- Pending
Links
Landscapes
- Control Of Direct Current Motors (AREA)
Abstract
PURPOSE: To stably control a DC motor by integrating a current feedback signal at everp predetermined period, holding it, then digitally converting it from analog value, and controlling the current with average current value of the signal, thereby effectively extracting the average value even from the current value including ripple.
CONSTITUTION: A field current value or armature current value Ia is normalized by a normalizing circuit 118 in a circuit for driving and controlling a DC motor under digital control, and is then integrated by an integrating circuit 201. Processing sequence is stored in advance in a processing circuit 122a for producing a series of timing signals, sampling holding start signal SH is applied to a multiplexer 119a via an address latching circuit 119a at every predetermined period, to hold the integrated value in the holding circuit 119b. The held value is digitally converted by an A/D converter 119c, and is inputted as a current average value to a controlling circuit. The integrating circuit 201 is cleared by a clearing circuit 202 at the same period after being held as the integrated value.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10556280A JPS5731390A (en) | 1980-07-31 | 1980-07-31 | Driving device for dc motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10556280A JPS5731390A (en) | 1980-07-31 | 1980-07-31 | Driving device for dc motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5731390A true JPS5731390A (en) | 1982-02-19 |
Family
ID=14410973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10556280A Pending JPS5731390A (en) | 1980-07-31 | 1980-07-31 | Driving device for dc motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5731390A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03198695A (en) * | 1989-12-25 | 1991-08-29 | Mitsubishi Electric Corp | Control method for direct current motor |
US7619865B2 (en) * | 2004-08-02 | 2009-11-17 | International Rectifier Corporation | Electronic circuit protection device with I2t or other function |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5433075A (en) * | 1977-08-19 | 1979-03-10 | Ando Electric | Mean value detector |
-
1980
- 1980-07-31 JP JP10556280A patent/JPS5731390A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5433075A (en) * | 1977-08-19 | 1979-03-10 | Ando Electric | Mean value detector |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03198695A (en) * | 1989-12-25 | 1991-08-29 | Mitsubishi Electric Corp | Control method for direct current motor |
US7619865B2 (en) * | 2004-08-02 | 2009-11-17 | International Rectifier Corporation | Electronic circuit protection device with I2t or other function |
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