JPS56109030A - Modulator for pulse interval - Google Patents

Modulator for pulse interval

Info

Publication number
JPS56109030A
JPS56109030A JP1222980A JP1222980A JPS56109030A JP S56109030 A JPS56109030 A JP S56109030A JP 1222980 A JP1222980 A JP 1222980A JP 1222980 A JP1222980 A JP 1222980A JP S56109030 A JPS56109030 A JP S56109030A
Authority
JP
Japan
Prior art keywords
output
pulse
repetitive frequency
circuit
average
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
JP1222980A
Other languages
Japanese (ja)
Inventor
Keiji Nakamura
Toshiharu Yasuki
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1222980A priority Critical patent/JPS56109030A/en
Publication of JPS56109030A publication Critical patent/JPS56109030A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation

Landscapes

  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To make highly stable the repetitive frequency of output pulse through the detected output, by comparing the detected output of average repetitive frequency of pulse modulating the interval of adjacent pulses with the reference value, and detecting the variance of the average repetitive frequency of the pulse. CONSTITUTION:To detect the variation of repetitive frequency of pulse PIM modulating the interval of adjacent pulses, a smooth circuit 16 is provided. The output of this circuit 16 is compared with a stable reference voltage fixed in advance from a terminal 18 at a differential amplifier 17 for comparison, and the difference is amplified. The output of this amplifier 17 is fed to the input signal from the terminal 11 at a voltage addition circuit 19. As a result, the average level of the input signal is changed, and the average repetitive frequency of the output PIM pulse is changed until the output of the circuit 16 and the reference voltage at the terminal 18 are equal, and it is kept constant when the two are equal. Thus, the repetitive frequency of the output pulse can highly be made stable.
JP1222980A 1980-02-04 1980-02-04 Modulator for pulse interval Pending JPS56109030A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1222980A JPS56109030A (en) 1980-02-04 1980-02-04 Modulator for pulse interval

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1222980A JPS56109030A (en) 1980-02-04 1980-02-04 Modulator for pulse interval

Publications (1)

Publication Number Publication Date
JPS56109030A true JPS56109030A (en) 1981-08-29

Family

ID=11799533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1222980A Pending JPS56109030A (en) 1980-02-04 1980-02-04 Modulator for pulse interval

Country Status (1)

Country Link
JP (1) JPS56109030A (en)

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