JPS5570130A - Saw-tooth wave generator circuit - Google Patents

Saw-tooth wave generator circuit

Info

Publication number
JPS5570130A
JPS5570130A JP14441178A JP14441178A JPS5570130A JP S5570130 A JPS5570130 A JP S5570130A JP 14441178 A JP14441178 A JP 14441178A JP 14441178 A JP14441178 A JP 14441178A JP S5570130 A JPS5570130 A JP S5570130A
Authority
JP
Japan
Prior art keywords
saw
voltage
circuit
tooth wave
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
JP14441178A
Other languages
Japanese (ja)
Inventor
Toru Akiyama
Tsutomu Ogishi
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP14441178A priority Critical patent/JPS5570130A/en
Publication of JPS5570130A publication Critical patent/JPS5570130A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:To ensure the steady generation of the saw-tooth waves by detecting the fixed voltage is secured in the fixed time after the rise of the saw-tooth wave via the saw-tooth wave generator circuit which can vary the inclination of the saw- tooth wave and then feeding the detection output back to the generator circuit as the control signal. CONSTITUTION:Output voltage V1 of reference voltage generator circuit 1 is applied to one input of voltage comparator circuit 2, and output V3 of the saw-tooth wave sent from saw-tooth wave generator circuit 3 which rises up in synchronization with reference voltage V2 is applied to the other input of circuit 2. And pulse V4 is delivered when the coincidence is obtained between voltage V1 and output V3 of the saw-tooth wave sent from circuit 2. At the same time, pulse V4 is generated through detection that the fixed voltage is obtained in the lapse of the fixed time since the rise of V3. The phase difference between pulse V4 and 2nd reference voltage V5 is detected through phase difference detector circuit 4, and signal V6 corresponding to the phase difference is delivered from circuit 4. This signal is then converted into DC voltage V7 through LPF5, and voltage V7 is fed back to circuit 3 to give correction to the inclination of output V3 of the saw-tooth wave.
JP14441178A 1978-11-21 1978-11-21 Saw-tooth wave generator circuit Pending JPS5570130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14441178A JPS5570130A (en) 1978-11-21 1978-11-21 Saw-tooth wave generator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14441178A JPS5570130A (en) 1978-11-21 1978-11-21 Saw-tooth wave generator circuit

Publications (1)

Publication Number Publication Date
JPS5570130A true JPS5570130A (en) 1980-05-27

Family

ID=15361539

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14441178A Pending JPS5570130A (en) 1978-11-21 1978-11-21 Saw-tooth wave generator circuit

Country Status (1)

Country Link
JP (1) JPS5570130A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394020A (en) * 1992-12-30 1995-02-28 Zenith Electronics Corporation Vertical ramp automatic amplitude control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394020A (en) * 1992-12-30 1995-02-28 Zenith Electronics Corporation Vertical ramp automatic amplitude control

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