GB1458475A - Ac to dc conversion systems - Google Patents

Ac to dc conversion systems

Info

Publication number
GB1458475A
GB1458475A GB3904074A GB3904074A GB1458475A GB 1458475 A GB1458475 A GB 1458475A GB 3904074 A GB3904074 A GB 3904074A GB 3904074 A GB3904074 A GB 3904074A GB 1458475 A GB1458475 A GB 1458475A
Authority
GB
United Kingdom
Prior art keywords
voltage
rms
range
amplifier
input
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
GB3904074A
Other languages
English (en)
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.)
Gemalto Terminals Ltd
Original Assignee
Solartron Electronic Group 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 Solartron Electronic Group Ltd filed Critical Solartron Electronic Group Ltd
Priority to GB3904074A priority Critical patent/GB1458475A/en
Priority to US05/609,320 priority patent/US4001697A/en
Priority to FR7526819A priority patent/FR2284215A1/fr
Priority to JP50107933A priority patent/JPS5151375A/ja
Priority to DE19752539586 priority patent/DE2539586A1/de
Publication of GB1458475A publication Critical patent/GB1458475A/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
    • G01R19/02—Measuring effective values, i.e. root-mean-square values
    • 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)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Analogue/Digital Conversion (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
  • Control Of Electrical Variables (AREA)
  • Measurement Of Current Or Voltage (AREA)
GB3904074A 1974-09-06 1974-09-06 Ac to dc conversion systems Expired GB1458475A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB3904074A GB1458475A (en) 1974-09-06 1974-09-06 Ac to dc conversion systems
US05/609,320 US4001697A (en) 1974-09-06 1975-08-29 Linear a.c. measurements
FR7526819A FR2284215A1 (fr) 1974-09-06 1975-09-02 Dispositif de conversion alternatif-continu
JP50107933A JPS5151375A (en) 1974-09-06 1975-09-05 Koryu chokuryuhenkansochi
DE19752539586 DE2539586A1 (de) 1974-09-06 1975-09-05 Wechselspannungs-gleichspannungs- wandlersystem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3904074A GB1458475A (en) 1974-09-06 1974-09-06 Ac to dc conversion systems

Publications (1)

Publication Number Publication Date
GB1458475A true GB1458475A (en) 1976-12-15

Family

ID=10407258

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3904074A Expired GB1458475A (en) 1974-09-06 1974-09-06 Ac to dc conversion systems

Country Status (5)

Country Link
US (1) US4001697A (https=)
JP (1) JPS5151375A (https=)
DE (1) DE2539586A1 (https=)
FR (1) FR2284215A1 (https=)
GB (1) GB1458475A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3928083A1 (de) * 1989-08-25 1991-02-28 Rohde & Schwarz Schaltung zum messen einer von dem quadratischen mittelwert einer wechselspannung abgeleiteten messgroesse, insbesondere des effektivwerts einer wechselspannung

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1567205A (en) * 1976-11-16 1980-05-14 Brookdeal Electronics Ltd Phase-sensitive rectifier circuits
GB1602804A (en) * 1978-05-16 1981-11-18 Eddystone Radio Rectifiers
US4959608A (en) * 1989-10-16 1990-09-25 Hewlett-Packard Company Apparatus and method for extracting the RMS value from a signal
US6064193A (en) * 1997-07-17 2000-05-16 Tektronix, Inc. Method and apparatus for measuring the mean square value of an electrical signal
US7034517B2 (en) * 2004-03-15 2006-04-25 Fluke Corporation Multimeter with filtered measurement mode
US7551025B2 (en) * 2007-08-29 2009-06-23 Margolis Mitchell E High-voltage transconductance circuit
TWI361281B (en) * 2008-04-17 2012-04-01 Cyrustek Co A measurement unit including an auto switch low-pass filter
US7898333B2 (en) * 2008-05-23 2011-03-01 Teledyne Scientific & Imaging, Llc Operational amplifier
US8354885B2 (en) 2008-05-23 2013-01-15 The Regents Of The University Of California Operational amplifier
DE102008037830A1 (de) * 2008-08-14 2010-02-25 Siemens Aktiengesellschaft Fehlerstromerfassungsgerät

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3571706A (en) * 1969-07-15 1971-03-23 Sentralinst For Ind Forskning Voltage measuring apparatus employing feedback gain control to obtain a predetermined output and a feedback loop to readout the gain value
JPS5027390B1 (https=) * 1970-05-12 1975-09-06
US3723845A (en) * 1971-07-16 1973-03-27 Ballantine Labor Inc True rms to dc converters
JPS516071A (ja) * 1974-07-02 1976-01-19 Mitsubishi Electric Corp Jitsukochihenkansochi

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3928083A1 (de) * 1989-08-25 1991-02-28 Rohde & Schwarz Schaltung zum messen einer von dem quadratischen mittelwert einer wechselspannung abgeleiteten messgroesse, insbesondere des effektivwerts einer wechselspannung

Also Published As

Publication number Publication date
DE2539586A1 (de) 1976-03-18
US4001697A (en) 1977-01-04
FR2284215B1 (https=) 1981-06-12
FR2284215A1 (fr) 1976-04-02
JPS5151375A (en) 1976-05-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee