GB562340A - Improvements in or relating to thermionic valve circuits - Google Patents

Improvements in or relating to thermionic valve circuits

Info

Publication number
GB562340A
GB562340A GB1822842A GB1822842A GB562340A GB 562340 A GB562340 A GB 562340A GB 1822842 A GB1822842 A GB 1822842A GB 1822842 A GB1822842 A GB 1822842A GB 562340 A GB562340 A GB 562340A
Authority
GB
United Kingdom
Prior art keywords
rectifiers
amplifier
load
utilizing
pair
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
GB1822842A
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.)
ALFRED WHITELAW EWEN
STC PLC
Original Assignee
ALFRED WHITELAW EWEN
Standard Telephone and Cables PLC
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 ALFRED WHITELAW EWEN, Standard Telephone and Cables PLC filed Critical ALFRED WHITELAW EWEN
Priority to GB1822842A priority Critical patent/GB562340A/en
Publication of GB562340A publication Critical patent/GB562340A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/22—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of ac into dc
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0023—Measuring currents or voltages from sources with high internal resistance by means of measuring circuits with high input impedance, e.g. OP-amplifiers
    • 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
    • G05F1/42—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 discharge tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Amplifiers (AREA)

Abstract

562,340. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., and EWEN, A. W. Dec. 23, 1942, No. 18228. [Class 40 (v)] [Also in Group XXXVI] A rectifying arrangement associated with a negative feed-back amplifier, as in a measuring system, comprises an amplifier adapted to maintain a constant current in the output load despite impedance variations therein for a given signal input and a load comprising oppositely poled rectifiers connected in parallel and separate means for utilizing the current passing each of the rectifiers, or for utilizing the current passing one only. Fig. 4 shows a two-stage amplifier with a negative feed-back resistance RC and a load comprising a pair of diode rectifiers D1, D2 and an associated meter M, the product of the feed-back resistance and the voltage transfer ratio of the amplifier being large compared with the load impedance. The meter may have a single winding arranged in series with one of the rectifiers, Fig. 2, or have a pair of windings, Fig. 3, so poled as to produce deflection in the same direction. Alternatively, the rectifiers may be of the copper oxide or selenium type. Specification 545,535 is referred to.
GB1822842A 1942-12-23 1942-12-23 Improvements in or relating to thermionic valve circuits Expired GB562340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1822842A GB562340A (en) 1942-12-23 1942-12-23 Improvements in or relating to thermionic valve circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1822842A GB562340A (en) 1942-12-23 1942-12-23 Improvements in or relating to thermionic valve circuits

Publications (1)

Publication Number Publication Date
GB562340A true GB562340A (en) 1944-06-28

Family

ID=10108841

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1822842A Expired GB562340A (en) 1942-12-23 1942-12-23 Improvements in or relating to thermionic valve circuits

Country Status (1)

Country Link
GB (1) GB562340A (en)

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