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JPS5742226A - Rejecting circuit of oscillation signal in laver mixer - Google Patents

Rejecting circuit of oscillation signal in laver mixer

Info

Publication number
JPS5742226A
JPS5742226A JP55119133A JP11913380A JPS5742226A JP S5742226 A JPS5742226 A JP S5742226A JP 55119133 A JP55119133 A JP 55119133A JP 11913380 A JP11913380 A JP 11913380A JP S5742226 A JPS5742226 A JP S5742226A
Authority
JP
Japan
Prior art keywords
signal
resistor
ripple
output
picked
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
JP55119133A
Other languages
Japanese (ja)
Inventor
Toshiaki Ryu
Toshihiro Shinguu
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.)
TAKEI DENKI KOGYO KK
Original Assignee
TAKEI DENKI KOGYO KK
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 TAKEI DENKI KOGYO KK filed Critical TAKEI DENKI KOGYO KK
Priority to JP55119133A priority Critical patent/JPS5742226A/en
Publication of JPS5742226A publication Critical patent/JPS5742226A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/125—Discriminating pulses
    • H03K5/1252—Suppression or limitation of noise or interference

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Edible Seaweed (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To pick up ripple components without causing the shift of phase for required signals, by rejecting the ripple component only out of output signals of a photodetector through the use of inverting circuit and addition circuit. CONSTITUTION:The ripple and signal are both smoothed with a capacitor Ct for the waveform of an output signal of a photodetector, and the result inputs to an inverting input of an operational amplifier OP1 and outputted from the output side through inversion, and the output signal is added to a signal through a resistor Rt2 and a signal through a resistor Rc and Zener diode ZD1, ZD2. This signal is inputted to an inverting input of an operaional amplifier OP2 through a resistor R3 and inverted and this inverting signal is added with a signal through a resistor R4. Further, this signal is inputted to an inverting input of an operational amplifier OP3, and the output signal is added with a signal from a resistor R7 and picked up. The signal thus picked up has no ripple with smoothing, and the signal component can be picked up without causing the phase shift.
JP55119133A 1980-08-27 1980-08-27 Rejecting circuit of oscillation signal in laver mixer Pending JPS5742226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55119133A JPS5742226A (en) 1980-08-27 1980-08-27 Rejecting circuit of oscillation signal in laver mixer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55119133A JPS5742226A (en) 1980-08-27 1980-08-27 Rejecting circuit of oscillation signal in laver mixer

Publications (1)

Publication Number Publication Date
JPS5742226A true JPS5742226A (en) 1982-03-09

Family

ID=14753748

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55119133A Pending JPS5742226A (en) 1980-08-27 1980-08-27 Rejecting circuit of oscillation signal in laver mixer

Country Status (1)

Country Link
JP (1) JPS5742226A (en)

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