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JPS5782774A - Current discrimination circuit - Google Patents

Current discrimination circuit

Info

Publication number
JPS5782774A
JPS5782774A JP15896880A JP15896880A JPS5782774A JP S5782774 A JPS5782774 A JP S5782774A JP 15896880 A JP15896880 A JP 15896880A JP 15896880 A JP15896880 A JP 15896880A JP S5782774 A JPS5782774 A JP S5782774A
Authority
JP
Japan
Prior art keywords
level
current
discrimination
discriminated
lds
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.)
Pending
Application number
JP15896880A
Other languages
Japanese (ja)
Inventor
Yoshinori Suzuki
Seiichi Uyama
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP15896880A priority Critical patent/JPS5782774A/en
Publication of JPS5782774A publication Critical patent/JPS5782774A/en
Pending 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
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/1659—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window)
    • G01R19/16595—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window) with multi level indication

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE:To secure safety by facilitating the discrimination of the level of a discrimination current by discriminating and displaying the level of the discrimination current stepwise and activating a display means intermittently when the discriminated level exceeds a maximum value. CONSTITUTION:A table tap includes an insertion plug 1, lines 2 and 3 where a load current flows, and loading outlets 4 and 5, and the plug 7 of a load 6 is connected, flowing a current. Then, the level of a current to be discriminated is discriminated by discrimination levels at a level discriminating circuit consisting of comparators COM1-COM4 and resistances R7-R11, and LED-LDs 1-4 are activated selectively by the output of the discriminating circuit corresponding to the discriminated level. Then, when the current to be discriminated exceeds the maximum value of discrimination levels, the LDs 1-4 are activated intermittently in response to the level discrimination output.
JP15896880A 1980-11-11 1980-11-11 Current discrimination circuit Pending JPS5782774A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15896880A JPS5782774A (en) 1980-11-11 1980-11-11 Current discrimination circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15896880A JPS5782774A (en) 1980-11-11 1980-11-11 Current discrimination circuit

Publications (1)

Publication Number Publication Date
JPS5782774A true JPS5782774A (en) 1982-05-24

Family

ID=15683298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15896880A Pending JPS5782774A (en) 1980-11-11 1980-11-11 Current discrimination circuit

Country Status (1)

Country Link
JP (1) JPS5782774A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0712977U (en) * 1993-07-26 1995-03-03 有限会社ティーエムシーエレクトロニクス Outlet with overcurrent warning device
JP2009017102A (en) * 2007-07-03 2009-01-22 Sekisui House Ltd Ceiling attachment structure for speaker, and speaker
JP5468703B1 (en) * 2013-03-25 2014-04-09 株式会社エスケイ工機 Power adapter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54111868A (en) * 1978-02-16 1979-09-01 Robson William F Electrostatic field indicator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54111868A (en) * 1978-02-16 1979-09-01 Robson William F Electrostatic field indicator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0712977U (en) * 1993-07-26 1995-03-03 有限会社ティーエムシーエレクトロニクス Outlet with overcurrent warning device
JP2009017102A (en) * 2007-07-03 2009-01-22 Sekisui House Ltd Ceiling attachment structure for speaker, and speaker
JP5468703B1 (en) * 2013-03-25 2014-04-09 株式会社エスケイ工機 Power adapter

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