GB1090729A - Improvements in apparatus for automatically controlling direct electric currents at precise values - Google Patents

Improvements in apparatus for automatically controlling direct electric currents at precise values

Info

Publication number
GB1090729A
GB1090729A GB4200366D GB4200366D GB1090729A GB 1090729 A GB1090729 A GB 1090729A GB 4200366 D GB4200366 D GB 4200366D GB 4200366 D GB4200366 D GB 4200366D GB 1090729 A GB1090729 A GB 1090729A
Authority
GB
United Kingdom
Prior art keywords
automatically controlling
electric currents
load
resistors
direct electric
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
GB4200366D
Inventor
Douglas Crisp Gall
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.)
H Tinsley and Co Ltd
Original Assignee
H Tinsley and Co 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
Priority claimed from GB178461A external-priority patent/GB932174A/en
Application filed by H Tinsley and Co Ltd filed Critical H Tinsley and Co Ltd
Priority to GB4200366D priority Critical patent/GB1090729A/en
Publication of GB1090729A publication Critical patent/GB1090729A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

1,090,729. Automatic current control. H. TINSLEY & CO. Ltd. Sept. 20, 1966, No. 42003/66. Addition to 932,174. Heading G3R. The automatic, current controller described in Specification 932,174 is provided with a modified setting-up circuit Figs. 2 and 3 (not shown) including a plurality of precision resistors which are selectively connectible into the control circuit by a multi-position switch or relay contacts so that the current through a load can be maintained at any one of a plurality of predetermined values, the said resistors replacing the single resistor (6) of the prior apparatus Fig. 1 (not shown). The load may be constituted by a plurality of resistors having temperature coefficients of resistance so selected that the load resistance is independent of temperature changes Fig. 4 (not shown).
GB4200366D 1961-01-16 1966-09-20 Improvements in apparatus for automatically controlling direct electric currents at precise values Expired GB1090729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4200366D GB1090729A (en) 1961-01-16 1966-09-20 Improvements in apparatus for automatically controlling direct electric currents at precise values

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB178461A GB932174A (en) 1961-01-16 1961-01-16 Improvements in apparatus for automatically controlling direct electric current at precise values
GB4200366D GB1090729A (en) 1961-01-16 1966-09-20 Improvements in apparatus for automatically controlling direct electric currents at precise values

Publications (1)

Publication Number Publication Date
GB1090729A true GB1090729A (en) 1967-11-15

Family

ID=26236980

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4200366D Expired GB1090729A (en) 1961-01-16 1966-09-20 Improvements in apparatus for automatically controlling direct electric currents at precise values

Country Status (1)

Country Link
GB (1) GB1090729A (en)

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