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GB787691A - Improvements in or relating to amplifying and rectifying circuit-arrangements - Google Patents

Improvements in or relating to amplifying and rectifying circuit-arrangements

Info

Publication number
GB787691A
GB787691A GB23974/55A GB2397455A GB787691A GB 787691 A GB787691 A GB 787691A GB 23974/55 A GB23974/55 A GB 23974/55A GB 2397455 A GB2397455 A GB 2397455A GB 787691 A GB787691 A GB 787691A
Authority
GB
United Kingdom
Prior art keywords
amplifying
arrangements
relating
input
rectifying circuit
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
GB23974/55A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB787691A publication Critical patent/GB787691A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)

Abstract

787,691. Measuring instruments. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 19, 1955 [Aug. 24, 1954], No. 23974/55. Class 37. In a circuit for producing a D.C. voltage varying linearly with an applied A.C. the input is applied to a transistor amplifier 2, 3, the output of which is applied to a rectifier 5 and an impedance 7 in the input circuit of the amplifier to produce current feedback. The D.C. operates a meter 6 and the feedback increases the input impedance. The resistor 4 and capacitor 8 may be replaced by a transformer and the bridge 5 replaced by a simple two-rectifier arrangement.
GB23974/55A 1954-08-24 1955-08-19 Improvements in or relating to amplifying and rectifying circuit-arrangements Expired GB787691A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL787691X 1954-08-24

Publications (1)

Publication Number Publication Date
GB787691A true GB787691A (en) 1957-12-11

Family

ID=19832320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23974/55A Expired GB787691A (en) 1954-08-24 1955-08-19 Improvements in or relating to amplifying and rectifying circuit-arrangements

Country Status (1)

Country Link
GB (1) GB787691A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2427327A1 (en) * 1973-06-15 1975-01-16 Philips Nv DEVICE FOR RECTIFICATING AN AC SIGNAL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2427327A1 (en) * 1973-06-15 1975-01-16 Philips Nv DEVICE FOR RECTIFICATING AN AC SIGNAL

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