GB1463108A - Alternating signal rectifying device - Google Patents

Alternating signal rectifying device

Info

Publication number
GB1463108A
GB1463108A GB2604174A GB2604174A GB1463108A GB 1463108 A GB1463108 A GB 1463108A GB 2604174 A GB2604174 A GB 2604174A GB 2604174 A GB2604174 A GB 2604174A GB 1463108 A GB1463108 A GB 1463108A
Authority
GB
United Kingdom
Prior art keywords
transistors
rectifying device
alternating signal
june
known 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
GB2604174A
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 Electronics UK Ltd
Original Assignee
Philips Electronic and Associated 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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1463108A publication Critical patent/GB1463108A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/14—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles
    • H03D1/18—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles of semiconductor devices
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

1463108 Voltage measuring PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 June 1974 [15 June 1973] 26041/74 Heading G1U A known circuit in which an amplifier A, Fig. 1, having transistors T1, T2 in its output stage, drives a meter M via a bridge rectifier D1,...,D4, is modified, as shown in Fig. 2, so that the function of the first two bridge diodes D1, D2 is taken over by transistors T1, T2 connected as emitter followers. This results in the signal applied to the base of transistors T1, T2 having to overcome only two diode forward voltages rather than three as in the known circuit. FET's could be used in place of the bi-polar transistors shown.
GB2604174A 1973-06-15 1974-06-12 Alternating signal rectifying device Expired GB1463108A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7308321A NL7308321A (en) 1973-06-15 1973-06-15

Publications (1)

Publication Number Publication Date
GB1463108A true GB1463108A (en) 1977-02-02

Family

ID=19819088

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2604174A Expired GB1463108A (en) 1973-06-15 1974-06-12 Alternating signal rectifying device

Country Status (6)

Country Link
JP (1) JPS551551B2 (en)
CA (1) CA1000355A (en)
DE (1) DE2427327C2 (en)
FR (1) FR2233630B1 (en)
GB (1) GB1463108A (en)
NL (1) NL7308321A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3135249A1 (en) * 1981-09-05 1984-01-19 ANT Nachrichtentechnik GmbH, 7150 Backnang Active rectifier

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS542621A (en) * 1977-06-08 1979-01-10 Hitachi Ltd Photo detector
DE3035752C2 (en) * 1980-09-22 1986-03-20 Vitalij Vasil'evič Andrianov Circuit arrangement designed as an integrated circuit for generating the signals for a level indicator
US6234395B1 (en) 1981-12-28 2001-05-22 Intermec Ip Corp. Instant portable bar code reader
US5187355A (en) * 1981-12-28 1993-02-16 Norand Corporation Instant portable bar code reader
US4766300A (en) * 1984-08-06 1988-08-23 Norand Corporation Instant portable bar code reader
US5144119A (en) * 1981-12-28 1992-09-01 Norand Corporation Instant portable bar code reader
US5288985A (en) * 1981-12-28 1994-02-22 Norand Corporation Instant portable bar code reader
US5021642A (en) * 1981-12-28 1991-06-04 Norand Corporation Instant portable bar code reader
US5081343A (en) * 1981-12-28 1992-01-14 Norand Corporation Instant portable bar code reader
US5258606A (en) * 1981-12-28 1993-11-02 Norand Corporation Instant portable bar code reader
US5218191A (en) * 1981-12-28 1993-06-08 Norand Corporation Instant portable bar code reader
US5144121A (en) * 1981-12-28 1992-09-01 Norand Corporation Instant portable bar code reader

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB787691A (en) * 1954-08-24 1957-12-11 Philips Electrical Ind Ltd Improvements in or relating to amplifying and rectifying circuit-arrangements
US3419787A (en) * 1966-08-08 1968-12-31 Collins Radio Co Semiconductor circuit for a-c to d-c conversion or frequency multiplication
SE336023B (en) * 1968-11-15 1971-06-21 Standard Radio & Telefon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3135249A1 (en) * 1981-09-05 1984-01-19 ANT Nachrichtentechnik GmbH, 7150 Backnang Active rectifier

Also Published As

Publication number Publication date
FR2233630A1 (en) 1975-01-10
FR2233630B1 (en) 1981-06-26
JPS5035627A (en) 1975-04-04
JPS551551B2 (en) 1980-01-14
CA1000355A (en) 1976-11-23
DE2427327C2 (en) 1983-01-27
NL7308321A (en) 1974-12-17
DE2427327A1 (en) 1975-01-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee