JPS55124208A - Control system of driving current - Google Patents

Control system of driving current

Info

Publication number
JPS55124208A
JPS55124208A JP3107579A JP3107579A JPS55124208A JP S55124208 A JPS55124208 A JP S55124208A JP 3107579 A JP3107579 A JP 3107579A JP 3107579 A JP3107579 A JP 3107579A JP S55124208 A JPS55124208 A JP S55124208A
Authority
JP
Japan
Prior art keywords
magnet
driving
output
current
transferred
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
Application number
JP3107579A
Other languages
Japanese (ja)
Inventor
Shigeru Yamakawa
Tsugihiko Kobayashi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP3107579A priority Critical patent/JPS55124208A/en
Publication of JPS55124208A publication Critical patent/JPS55124208A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01F7/1877—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings controlling a plurality of loads

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Impact Printers (AREA)

Abstract

PURPOSE:To eliminate a relay or other element by a method wherein in a driving current circuit of a driving magnet system for a line printer etc. an abnormal current detecting mean is provided and a stabilizing transistor of a constant voltage source for driving magnets is controlled by means of its output. CONSTITUTION:Magnet coils L1-L136 are drived with magnet drivers Q1-Q136, respectively. A current detector 3 is provided in addition to voltage detectors D1- D136 which are connected in parallel with each of magnet drivers Q1-Q136. When any of voltage detectors D1-D136 or a current detector 3 detects a fault, its output is transferred to a controller 7 and the output from the controller 7 is transferred to the base of the stabilizing transistor of a constant voltage source 6, and the current flowing through the magnet driving system is controlled by it.
JP3107579A 1979-03-19 1979-03-19 Control system of driving current Pending JPS55124208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3107579A JPS55124208A (en) 1979-03-19 1979-03-19 Control system of driving current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3107579A JPS55124208A (en) 1979-03-19 1979-03-19 Control system of driving current

Publications (1)

Publication Number Publication Date
JPS55124208A true JPS55124208A (en) 1980-09-25

Family

ID=12321311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3107579A Pending JPS55124208A (en) 1979-03-19 1979-03-19 Control system of driving current

Country Status (1)

Country Link
JP (1) JPS55124208A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0332406U (en) * 1989-08-07 1991-03-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0332406U (en) * 1989-08-07 1991-03-29

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