JPS57144469A - Overcurrent detecting circuit - Google Patents

Overcurrent detecting circuit

Info

Publication number
JPS57144469A
JPS57144469A JP3033481A JP3033481A JPS57144469A JP S57144469 A JPS57144469 A JP S57144469A JP 3033481 A JP3033481 A JP 3033481A JP 3033481 A JP3033481 A JP 3033481A JP S57144469 A JPS57144469 A JP S57144469A
Authority
JP
Japan
Prior art keywords
voltage
input
waveform
comparator
current
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.)
Granted
Application number
JP3033481A
Other languages
English (en)
Japanese (ja)
Other versions
JPH023947B2 (enExample
Inventor
Kiyomi Watanabe
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.)
Origin Electric Co Ltd
Original Assignee
Origin Electric Co 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 Origin Electric Co Ltd filed Critical Origin Electric Co Ltd
Priority to JP3033481A priority Critical patent/JPS57144469A/ja
Publication of JPS57144469A publication Critical patent/JPS57144469A/ja
Publication of JPH023947B2 publication Critical patent/JPH023947B2/ja
Granted 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
    • G01R19/16571—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 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)
JP3033481A 1981-03-03 1981-03-03 Overcurrent detecting circuit Granted JPS57144469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3033481A JPS57144469A (en) 1981-03-03 1981-03-03 Overcurrent detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3033481A JPS57144469A (en) 1981-03-03 1981-03-03 Overcurrent detecting circuit

Publications (2)

Publication Number Publication Date
JPS57144469A true JPS57144469A (en) 1982-09-07
JPH023947B2 JPH023947B2 (enExample) 1990-01-25

Family

ID=12300912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3033481A Granted JPS57144469A (en) 1981-03-03 1981-03-03 Overcurrent detecting circuit

Country Status (1)

Country Link
JP (1) JPS57144469A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007147538A (ja) * 2005-11-30 2007-06-14 Ricoh Co Ltd 発光素子駆動電流検出装置及び画像形成装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007147538A (ja) * 2005-11-30 2007-06-14 Ricoh Co Ltd 発光素子駆動電流検出装置及び画像形成装置

Also Published As

Publication number Publication date
JPH023947B2 (enExample) 1990-01-25

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