GB808495A - Improvements in and relating to electric constant power circuits - Google Patents

Improvements in and relating to electric constant power circuits

Info

Publication number
GB808495A
GB808495A GB1540355A GB1540355A GB808495A GB 808495 A GB808495 A GB 808495A GB 1540355 A GB1540355 A GB 1540355A GB 1540355 A GB1540355 A GB 1540355A GB 808495 A GB808495 A GB 808495A
Authority
GB
United Kingdom
Prior art keywords
resistor
relating
constant power
potentiometers
power circuits
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
GB1540355A
Inventor
Peter Henry Gay Allen
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB1540355A priority Critical patent/GB808495A/en
Publication of GB808495A publication Critical patent/GB808495A/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
    • G05F1/66—Regulating electric power

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)
  • Adjustable Resistors (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

808,495. Electric control systems. BRITISH THOMSON-HOUSTON CO. Ltd. May 28, 1956 [May 27, 1955], No. 15403/55. Class 40 (1). The power dissipation in a resistor R is maintained constant with variation of its resistance due to rise in temperature by feeding R through a constant current network LC from a stabilized voltage source and a potentiometer P1, the voltage drop across R being compared with that across a similarly connected resistor R1, any difference causing a servomotor to adjust R1 and the sliders of potentiometers P1, P2 until balance is regained. It is shown that if the potentiometers P1, P2 and resistor R1 are wound so that the power dissipation in R is constant. The network may be used in conjunction with the measurement of the thermal conductivity of a liquid.
GB1540355A 1955-05-27 1955-05-27 Improvements in and relating to electric constant power circuits Expired GB808495A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1540355A GB808495A (en) 1955-05-27 1955-05-27 Improvements in and relating to electric constant power circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1540355A GB808495A (en) 1955-05-27 1955-05-27 Improvements in and relating to electric constant power circuits

Publications (1)

Publication Number Publication Date
GB808495A true GB808495A (en) 1959-02-04

Family

ID=10058531

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1540355A Expired GB808495A (en) 1955-05-27 1955-05-27 Improvements in and relating to electric constant power circuits

Country Status (1)

Country Link
GB (1) GB808495A (en)

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