GB1136648A - Photo-responsive resistance device - Google Patents

Photo-responsive resistance device

Info

Publication number
GB1136648A
GB1136648A GB18562/66A GB1856266A GB1136648A GB 1136648 A GB1136648 A GB 1136648A GB 18562/66 A GB18562/66 A GB 18562/66A GB 1856266 A GB1856266 A GB 1856266A GB 1136648 A GB1136648 A GB 1136648A
Authority
GB
United Kingdom
Prior art keywords
photo
resistor
rheostat
control device
operated
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.)
Expired
Application number
GB18562/66A
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.)
General Electric Co
Original Assignee
General Electric Co
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
Priority claimed from US467232A external-priority patent/US3383518A/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB1136648A publication Critical patent/GB1136648A/en
Expired 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
    • H02P7/293—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 using phase control

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)
  • Optical Transform (AREA)

Abstract

1,136,648. Control of D.C. motors. GENERAL ELECTRIC CO. 27 April, 1966 [23 June, 1965; 28 June, 1965], No. 18562/66. Heading H2J. [Also in Division G1] A photo-rheostat of the type in which a control device varies the amount of light passing to a photo-resistor is provided with means for disabling the controlling effect of the photoresistor when the control device is at the ends of its range of adjustment. The control device may be a cam operated shutter 15, Fig. 3, movable in a slot in a housing 16 containing the lamp 17 and a CdS photo-resistor switches 20, 21 operated by a bar 13 and the shutter 15 respectively disconnect the photo-resistor output from the controlled circuit and apply an open and short circuit at the ends of the range of rotation of the rod 10. In another embodiment, Fig. 6, (not shown), the rod 10 rotates a housing containing the lamp 30 and a polarizer 29 so that the amount of light passing through the polarizer 31 to the photo-resistor 32. The limit switches are operated by arms 26. The photo-rheostat may be connected in a potential divider connected to the control electrode of a silicon controlled rectifier (SCR). The SCR is in series with a D.C. motor and is fed by chopped D.C. The photo-rheostat thus controls the mean motor current.
GB18562/66A 1965-06-23 1966-04-27 Photo-responsive resistance device Expired GB1136648A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46624065A 1965-06-23 1965-06-23
US467232A US3383518A (en) 1965-06-28 1965-06-28 Light shutter and support rod operating switches at limits of shutter movement

Publications (1)

Publication Number Publication Date
GB1136648A true GB1136648A (en) 1968-12-11

Family

ID=27041586

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18562/66A Expired GB1136648A (en) 1965-06-23 1966-04-27 Photo-responsive resistance device

Country Status (2)

Country Link
DE (1) DE1538519A1 (en)
GB (1) GB1136648A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2739538C2 (en) * 1977-09-02 1982-10-21 Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg Driving switch with a contactless operating element in the arrangement on an electric vehicle

Also Published As

Publication number Publication date
DE1538519A1 (en) 1970-03-26

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