ZA843313B - Power control apparatus with optical isolation feedback means - Google Patents

Power control apparatus with optical isolation feedback means

Info

Publication number
ZA843313B
ZA843313B ZA843313A ZA843313A ZA843313B ZA 843313 B ZA843313 B ZA 843313B ZA 843313 A ZA843313 A ZA 843313A ZA 843313 A ZA843313 A ZA 843313A ZA 843313 B ZA843313 B ZA 843313B
Authority
ZA
South Africa
Prior art keywords
control apparatus
power control
feedback means
optical isolation
isolation feedback
Prior art date
Application number
ZA843313A
Inventor
Donald I Gonser
Duane E Barber
Original Assignee
Dentsply Int Inc
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 Dentsply Int Inc filed Critical Dentsply Int Inc
Publication of ZA843313B publication Critical patent/ZA843313B/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
    • G05F1/44—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only
    • G05F1/45—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load
    • G05F1/455—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load with phase control
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/08—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices
    • H05B39/083—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices by the variation-rate of light intensity

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Power Conversion In General (AREA)
  • Control Of Voltage And Current In General (AREA)
ZA843313A 1983-05-06 1984-05-03 Power control apparatus with optical isolation feedback means ZA843313B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49228583A 1983-05-06 1983-05-06

Publications (1)

Publication Number Publication Date
ZA843313B true ZA843313B (en) 1984-12-24

Family

ID=23955685

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA843313A ZA843313B (en) 1983-05-06 1984-05-03 Power control apparatus with optical isolation feedback means

Country Status (5)

Country Link
EP (1) EP0124864A1 (en)
JP (1) JPS6089221A (en)
AU (1) AU2760184A (en)
BR (1) BR8402089A (en)
ZA (1) ZA843313B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237244A (en) * 1988-12-20 1993-08-17 Bertenshaw David R Electric lighting and power controllers therefor
GB2226431B (en) * 1988-12-20 1992-08-12 Strand Lighting Ltd Electric lighting and power controllers therefor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064404A (en) * 1976-04-19 1977-12-20 Chamberlain Manufacturing Corporation Accessory for a garage door opener
US4224563A (en) * 1978-09-01 1980-09-23 Polaroid Corporation Regulator circuit for photographic illumination
US4344071A (en) * 1980-07-10 1982-08-10 Roger A. Heller Light switching mechanism

Also Published As

Publication number Publication date
AU2760184A (en) 1984-11-08
EP0124864A1 (en) 1984-11-14
BR8402089A (en) 1984-12-11
JPS6089221A (en) 1985-05-20

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