JPS5645005A - Electromagnetic device - Google Patents
Electromagnetic deviceInfo
- Publication number
- JPS5645005A JPS5645005A JP12105979A JP12105979A JPS5645005A JP S5645005 A JPS5645005 A JP S5645005A JP 12105979 A JP12105979 A JP 12105979A JP 12105979 A JP12105979 A JP 12105979A JP S5645005 A JPS5645005 A JP S5645005A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic device
- attracted
- plunger
- resistor
- constitution
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/10—Manually-operated control; Solenoid-operated control
- G11B15/103—Manually-operated control; Solenoid-operated control electrically operated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
- H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
- H01F7/1838—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current by switching-in or -out impedance
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Recording Measured Values (AREA)
Abstract
PURPOSE:To simplify the constitution and to reduce the watt consumption and heating value of an electromagnetic device for a plunger and the like used to control a tape recorder and the like by inserting a resistor in the exciting winding circuit to maintain the state of a movable piece having been attracted. CONSTITUTION:To maintain the state of a movable piece, e.g., a plunger 8 having been attracted by excitation of windings 6 and 7, switches 9 and 10 are changed over to the fixed terminal side. This causes a resistor 11 to be inserted in the exciting winding circuit. Thus, the watt consumption and the heating value on the whole can be reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12105979A JPS5645005A (en) | 1979-09-20 | 1979-09-20 | Electromagnetic device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12105979A JPS5645005A (en) | 1979-09-20 | 1979-09-20 | Electromagnetic device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5645005A true JPS5645005A (en) | 1981-04-24 |
Family
ID=14801813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12105979A Pending JPS5645005A (en) | 1979-09-20 | 1979-09-20 | Electromagnetic device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5645005A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5784244A (en) * | 1996-09-13 | 1998-07-21 | Cooper Industries, Inc. | Current limiting circuit |
-
1979
- 1979-09-20 JP JP12105979A patent/JPS5645005A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5784244A (en) * | 1996-09-13 | 1998-07-21 | Cooper Industries, Inc. | Current limiting circuit |
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