JPS56120218A - Peak detection circuit - Google Patents

Peak detection circuit

Info

Publication number
JPS56120218A
JPS56120218A JP2373180A JP2373180A JPS56120218A JP S56120218 A JPS56120218 A JP S56120218A JP 2373180 A JP2373180 A JP 2373180A JP 2373180 A JP2373180 A JP 2373180A JP S56120218 A JPS56120218 A JP S56120218A
Authority
JP
Japan
Prior art keywords
transistor
fed
resistors
pulse
output
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
JP2373180A
Other languages
Japanese (ja)
Inventor
Shunji Nakamura
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP2373180A priority Critical patent/JPS56120218A/en
Publication of JPS56120218A publication Critical patent/JPS56120218A/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
    • G01R19/04—Measuring peak values or amplitude or envelope of ac or of pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To enable the detection of peak value over a wide range of input signal frequency and amplitude, by connecting a monostable multivibrator to the output of an analog comparator. CONSTITUTION:An input signal is fed to an input terminal 1 of an analog comparator 2, and it is compared with a voltage of a peak voltage holding capacitor 13. The output 16 of the comparator 2 is fed to an input terminal 17 of a monostable multivibrator 3 to be a pulse with a given time width. The pulse is fed to a bias circuit of a transistor 6 consisting of resistors 4, 5, to turn on the transistor 6. Then, a constant current circuit consisting of resistors 7, 11, variable resistor 12, diode 8, constant voltage diode 9 and transistor 10, is operated to charge the peak voltage holding capacitor 13.
JP2373180A 1980-02-27 1980-02-27 Peak detection circuit Pending JPS56120218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2373180A JPS56120218A (en) 1980-02-27 1980-02-27 Peak detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2373180A JPS56120218A (en) 1980-02-27 1980-02-27 Peak detection circuit

Publications (1)

Publication Number Publication Date
JPS56120218A true JPS56120218A (en) 1981-09-21

Family

ID=12118450

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2373180A Pending JPS56120218A (en) 1980-02-27 1980-02-27 Peak detection circuit

Country Status (1)

Country Link
JP (1) JPS56120218A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61155865A (en) * 1984-12-28 1986-07-15 Toshiba Corp Peak holding circuit
US6596078B2 (en) 2000-09-21 2003-07-22 Canon Kabushiki Kaisha Method of producing oxide whiskers, oxide whiskers, and photoelectric conversion apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53115277A (en) * 1977-02-16 1978-10-07 Tektronix Inc Peak detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53115277A (en) * 1977-02-16 1978-10-07 Tektronix Inc Peak detector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61155865A (en) * 1984-12-28 1986-07-15 Toshiba Corp Peak holding circuit
US6596078B2 (en) 2000-09-21 2003-07-22 Canon Kabushiki Kaisha Method of producing oxide whiskers, oxide whiskers, and photoelectric conversion apparatus

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