FR2248639A1 - Very low speed DC film drive motor control - uses full wave rectified current and inverted diode in parallel with motor - Google Patents

Very low speed DC film drive motor control - uses full wave rectified current and inverted diode in parallel with motor

Info

Publication number
FR2248639A1
FR2248639A1 FR7336995A FR7336995A FR2248639A1 FR 2248639 A1 FR2248639 A1 FR 2248639A1 FR 7336995 A FR7336995 A FR 7336995A FR 7336995 A FR7336995 A FR 7336995A FR 2248639 A1 FR2248639 A1 FR 2248639A1
Authority
FR
France
Prior art keywords
motor
parallel
full wave
low speed
wave rectified
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.)
Withdrawn
Application number
FR7336995A
Other languages
French (fr)
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.)
Cellophane SA France
Original Assignee
Cellophane SA France
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 Cellophane SA France filed Critical Cellophane SA France
Priority to FR7336995A priority Critical patent/FR2248639A1/en
Publication of FR2248639A1 publication Critical patent/FR2248639A1/en
Withdrawn legal-status Critical Current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
    • H02P7/292—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 static converters, e.g. AC to DC
    • H02P7/295—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 static converters, e.g. AC to DC of the kind having one thyristor or the like in series with the power supply and the motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

The circuit is used with a phase controlled thyristor to provide very low DC motor speeds, such a requirement existing in film reading equipment where hight and low winding rates are necessary. The technique aims to overcome the lack of smoothing in the running of motors at low speeds. The AC input is fed to full wave bridge rectifier, its output supplying the motor via a series thyristor. The duration of conduction is controlled by a phase control circuit and oscillator, smoothing of this supply is achieved by an inverted diode in parallel with the motor winding and a rectifier and filter circuit in parallel with the motor.
FR7336995A 1973-10-17 1973-10-17 Very low speed DC film drive motor control - uses full wave rectified current and inverted diode in parallel with motor Withdrawn FR2248639A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7336995A FR2248639A1 (en) 1973-10-17 1973-10-17 Very low speed DC film drive motor control - uses full wave rectified current and inverted diode in parallel with motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7336995A FR2248639A1 (en) 1973-10-17 1973-10-17 Very low speed DC film drive motor control - uses full wave rectified current and inverted diode in parallel with motor

Publications (1)

Publication Number Publication Date
FR2248639A1 true FR2248639A1 (en) 1975-05-16

Family

ID=9126514

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7336995A Withdrawn FR2248639A1 (en) 1973-10-17 1973-10-17 Very low speed DC film drive motor control - uses full wave rectified current and inverted diode in parallel with motor

Country Status (1)

Country Link
FR (1) FR2248639A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6275400B1 (en) 1999-02-10 2001-08-14 Emerson Electric Co. Dropping impedance power supply
EP1124318A1 (en) * 2000-02-11 2001-08-16 Emerson Electric Co. Dropping impedance power supply

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6275400B1 (en) 1999-02-10 2001-08-14 Emerson Electric Co. Dropping impedance power supply
EP1124318A1 (en) * 2000-02-11 2001-08-16 Emerson Electric Co. Dropping impedance power supply

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Legal Events

Date Code Title Description
ST Notification of lapse