GB1234494A - - Google Patents

Info

Publication number
GB1234494A
GB1234494A GB1234494DA GB1234494A GB 1234494 A GB1234494 A GB 1234494A GB 1234494D A GB1234494D A GB 1234494DA GB 1234494 A GB1234494 A GB 1234494A
Authority
GB
United Kingdom
Prior art keywords
level
input voltage
input
signal
attenuation
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
Other languages
English (en)
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 filed Critical
Publication of GB1234494A publication Critical patent/GB1234494A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • 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
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/255—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques using analogue/digital converters of the type with counting of pulses during a period of time proportional to voltage or current, delivered by a pulse generator with fixed frequency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
GB1234494D 1968-07-31 1969-07-25 Expired GB1234494A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NZ15333968 1968-07-31

Publications (1)

Publication Number Publication Date
GB1234494A true GB1234494A (enrdf_load_stackoverflow) 1971-06-03

Family

ID=19916598

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1234494D Expired GB1234494A (enrdf_load_stackoverflow) 1968-07-31 1969-07-25

Country Status (5)

Country Link
DE (1) DE1939017A1 (enrdf_load_stackoverflow)
FR (1) FR2014086A1 (enrdf_load_stackoverflow)
GB (1) GB1234494A (enrdf_load_stackoverflow)
NL (1) NL6911693A (enrdf_load_stackoverflow)
SE (1) SE343414B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117420349A (zh) * 2023-12-18 2024-01-19 安徽雷彻科技有限公司 一种过流检测电路

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117420349A (zh) * 2023-12-18 2024-01-19 安徽雷彻科技有限公司 一种过流检测电路
CN117420349B (zh) * 2023-12-18 2024-02-27 安徽雷彻科技有限公司 一种过流检测电路

Also Published As

Publication number Publication date
SE343414B (enrdf_load_stackoverflow) 1972-03-06
NL6911693A (enrdf_load_stackoverflow) 1970-02-03
DE1939017A1 (de) 1971-02-11
FR2014086A1 (enrdf_load_stackoverflow) 1970-04-10

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees