GB2249840B - Universal digital input channel - Google Patents

Universal digital input channel

Info

Publication number
GB2249840B
GB2249840B GB9024694A GB9024694A GB2249840B GB 2249840 B GB2249840 B GB 2249840B GB 9024694 A GB9024694 A GB 9024694A GB 9024694 A GB9024694 A GB 9024694A GB 2249840 B GB2249840 B GB 2249840B
Authority
GB
United Kingdom
Prior art keywords
digital input
input channel
universal digital
universal
channel
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 - Fee Related
Application number
GB9024694A
Other versions
GB9024694D0 (en
GB2249840A (en
Inventor
Alireza Ghazi Hessami
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9024694A priority Critical patent/GB2249840B/en
Publication of GB9024694D0 publication Critical patent/GB9024694D0/en
Publication of GB2249840A publication Critical patent/GB2249840A/en
Application granted granted Critical
Publication of GB2249840B publication Critical patent/GB2249840B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01R19/145—Indicating the presence of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Programmable Controllers (AREA)
GB9024694A 1990-11-13 1990-11-13 Universal digital input channel Expired - Fee Related GB2249840B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9024694A GB2249840B (en) 1990-11-13 1990-11-13 Universal digital input channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9024694A GB2249840B (en) 1990-11-13 1990-11-13 Universal digital input channel

Publications (3)

Publication Number Publication Date
GB9024694D0 GB9024694D0 (en) 1991-01-02
GB2249840A GB2249840A (en) 1992-05-20
GB2249840B true GB2249840B (en) 1995-01-11

Family

ID=10685319

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9024694A Expired - Fee Related GB2249840B (en) 1990-11-13 1990-11-13 Universal digital input channel

Country Status (1)

Country Link
GB (1) GB2249840B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7872430B2 (en) 2005-11-18 2011-01-18 Cree, Inc. Solid state lighting panels with variable voltage boost current sources
US8330710B2 (en) 2007-05-08 2012-12-11 Cree, Inc. Systems and methods for controlling a solid state lighting panel

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2573924B1 (en) 2006-09-13 2019-02-27 Cree, Inc. Circuit for supplying electrical power
CN102944837A (en) * 2012-11-25 2013-02-27 山东电力集团公司滨州供电公司 Device for monitoring breaker state
CN109975645B (en) * 2019-04-03 2022-11-25 重庆倍莫廷科技有限公司 Optical isolation wide voltage range electric leakage monitoring alarm module

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2022849A (en) * 1978-06-12 1979-12-19 Honeywell Inc Testing process-monitoring electrical systems
EP0050417A1 (en) * 1980-10-17 1982-04-28 Honeywell Inc. Circuit arrangement including an opto-isolator device for checking the state of an electric switch
GB2089591A (en) * 1980-12-09 1982-06-23 Restbury Engineers Ltd Switch protection device
GB2101339A (en) * 1981-06-22 1983-01-12 Gen Signal Corp Contact checking circuit
GB2110388A (en) * 1981-10-30 1983-06-15 Yorkshire Chemicals Ltd Improvements relating to electrical controls for lifts, hoists and the like

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2022849A (en) * 1978-06-12 1979-12-19 Honeywell Inc Testing process-monitoring electrical systems
EP0050417A1 (en) * 1980-10-17 1982-04-28 Honeywell Inc. Circuit arrangement including an opto-isolator device for checking the state of an electric switch
GB2089591A (en) * 1980-12-09 1982-06-23 Restbury Engineers Ltd Switch protection device
GB2101339A (en) * 1981-06-22 1983-01-12 Gen Signal Corp Contact checking circuit
GB2110388A (en) * 1981-10-30 1983-06-15 Yorkshire Chemicals Ltd Improvements relating to electrical controls for lifts, hoists and the like

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7872430B2 (en) 2005-11-18 2011-01-18 Cree, Inc. Solid state lighting panels with variable voltage boost current sources
US8203286B2 (en) 2005-11-18 2012-06-19 Cree, Inc. Solid state lighting panels with variable voltage boost current sources
US8461776B2 (en) 2005-11-18 2013-06-11 Cree, Inc. Solid state lighting panels with variable voltage boost current sources
US8941331B2 (en) 2005-11-18 2015-01-27 Cree, Inc. Solid state lighting panels with variable voltage boost current sources
US8330710B2 (en) 2007-05-08 2012-12-11 Cree, Inc. Systems and methods for controlling a solid state lighting panel

Also Published As

Publication number Publication date
GB9024694D0 (en) 1991-01-02
GB2249840A (en) 1992-05-20

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Legal Events

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

Effective date: 19951113