JPS57123728A - Generation system for superhigh-speed pulse-width- modulated signal by phase-difference multiple comparing method - Google Patents

Generation system for superhigh-speed pulse-width- modulated signal by phase-difference multiple comparing method

Info

Publication number
JPS57123728A
JPS57123728A JP947481A JP947481A JPS57123728A JP S57123728 A JPS57123728 A JP S57123728A JP 947481 A JP947481 A JP 947481A JP 947481 A JP947481 A JP 947481A JP S57123728 A JPS57123728 A JP S57123728A
Authority
JP
Japan
Prior art keywords
superhigh
width
phase
modulated signal
speed pulse
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
JP947481A
Other languages
Japanese (ja)
Inventor
Hiroshi Okagaki
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP947481A priority Critical patent/JPS57123728A/en
Publication of JPS57123728A publication Critical patent/JPS57123728A/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

Abstract

PURPOSE:To obtain a superhigh-speed pulse-width-modulated signal by comparing each carrier wave with respective input analog signal as it has a sine waveform or after its waveform is corrected, and by synthesizing the resulting signals logically. CONSTITUTION:A carrier wave 3 is passed through a phase-shifting circuit to obtain two out-of-phase carrier waves, and those sine carrier waves as they are or carrier waves A and B for comparison obtained by correcting them so that the linear-part regions of their waveforms are widened are compared with respective analog signals to extract comparison signals of more than one system; they are synthesized logically to obtain a pulse-width-modulated signal 2. Thus, superhigh-speed analog-to-digital conversion is achieved.
JP947481A 1981-01-24 1981-01-24 Generation system for superhigh-speed pulse-width- modulated signal by phase-difference multiple comparing method Pending JPS57123728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP947481A JPS57123728A (en) 1981-01-24 1981-01-24 Generation system for superhigh-speed pulse-width- modulated signal by phase-difference multiple comparing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP947481A JPS57123728A (en) 1981-01-24 1981-01-24 Generation system for superhigh-speed pulse-width- modulated signal by phase-difference multiple comparing method

Publications (1)

Publication Number Publication Date
JPS57123728A true JPS57123728A (en) 1982-08-02

Family

ID=11721247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP947481A Pending JPS57123728A (en) 1981-01-24 1981-01-24 Generation system for superhigh-speed pulse-width- modulated signal by phase-difference multiple comparing method

Country Status (1)

Country Link
JP (1) JPS57123728A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60197172A (en) * 1984-03-21 1985-10-05 Hitachi Ltd Pwm pulse generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60197172A (en) * 1984-03-21 1985-10-05 Hitachi Ltd Pwm pulse generator
JPH0628520B2 (en) * 1984-03-21 1994-04-13 株式会社日立製作所 PWM pulse generator

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