JPS57113780A - Driving circuit in moving-coil type magnet - Google Patents

Driving circuit in moving-coil type magnet

Info

Publication number
JPS57113780A
JPS57113780A JP55187778A JP18777880A JPS57113780A JP S57113780 A JPS57113780 A JP S57113780A JP 55187778 A JP55187778 A JP 55187778A JP 18777880 A JP18777880 A JP 18777880A JP S57113780 A JPS57113780 A JP S57113780A
Authority
JP
Japan
Prior art keywords
coil
transistor
driving circuit
moving
coil type
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
JP55187778A
Other languages
Japanese (ja)
Inventor
Masao Hiyane
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 JP55187778A priority Critical patent/JPS57113780A/en
Publication of JPS57113780A publication Critical patent/JPS57113780A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
    • H02P7/291—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation with on-off control between two set points, e.g. controlling by hysteresis

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

PURPOSE:To flow normal direction and reverse direction currents into a coil with simple circuit composition by a method wherein a switching element is connected to the coil in series and an auxiliary coil having higher inductance than that of the coil is also connected to the coil in parallel. CONSTITUTION:A transistor 11 is connected in series with a coil 2 supported to freely move in a fixed field system by a fixed field system generation means and an auxiliary coil 10 having high inductance is connected to the coil 2 in parallel. With a driving pulse E applied to the base of te transistor 11, a forward direction current i1 is flowed into the coil 2. With the driving pulse E in the transistor 11 is falling, a reverse direction current i2 is flowed into the coil 2 by the counter electromotive force in the auxiliary coil 10. In this way, a driving circuit with one switch and one power source can be obtained.
JP55187778A 1980-12-29 1980-12-29 Driving circuit in moving-coil type magnet Pending JPS57113780A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55187778A JPS57113780A (en) 1980-12-29 1980-12-29 Driving circuit in moving-coil type magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55187778A JPS57113780A (en) 1980-12-29 1980-12-29 Driving circuit in moving-coil type magnet

Publications (1)

Publication Number Publication Date
JPS57113780A true JPS57113780A (en) 1982-07-15

Family

ID=16212047

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55187778A Pending JPS57113780A (en) 1980-12-29 1980-12-29 Driving circuit in moving-coil type magnet

Country Status (1)

Country Link
JP (1) JPS57113780A (en)

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