JPS5782774A - Current discrimination circuit - Google Patents
Current discrimination circuitInfo
- 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
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54111868A (en) * | 1978-02-16 | 1979-09-01 | Robson William F | Electrostatic field indicator |
-
1980
- 1980-11-11 JP JP15896880A patent/JPS5782774A/en active Pending
Patent Citations (1)
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)
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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