JPS57141122A - Voltage sweeping circuit and its driving method - Google Patents

Voltage sweeping circuit and its driving method

Info

Publication number
JPS57141122A
JPS57141122A JP2650981A JP2650981A JPS57141122A JP S57141122 A JPS57141122 A JP S57141122A JP 2650981 A JP2650981 A JP 2650981A JP 2650981 A JP2650981 A JP 2650981A JP S57141122 A JPS57141122 A JP S57141122A
Authority
JP
Japan
Prior art keywords
voltage
circuit
stop signal
sweep
generating circuit
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
JP2650981A
Other languages
Japanese (ja)
Inventor
Tsutomu Ishihara
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 JP2650981A priority Critical patent/JPS57141122A/en
Publication of JPS57141122A publication Critical patent/JPS57141122A/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
    • H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
    • H03K4/50—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor
    • H03K4/56—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor using a semiconductor device with negative feedback through a capacitor, e.g. Miller integrator

Landscapes

  • Details Of Television Scanning (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To obtain a simple voltage sweeping circuit by adding an initial value setting circuit and an operation stopping means to an analog integrator. CONSTITUTION:A sweep voltage generating circuit 1 is composed of a Miller integrator, and for the initialization of the terminal voltage of a capacitor 12, an initializing voltage application terminal 5 and reset switches 17 and 18 are provided. With an operation switch 16 closed, the circuit 1 generates a sweep voltage V0 at the output terminal 6 of an amplifier 11. A stop signal generating circuit 2 compares the voltage V0 with a sweep ending voltage VF and, when the both are coincident, generates a stop signal. The stop signal is supplied to the D-FF31 of a sweeping signal generating circuit 3 to reset the D-FF31, thereby opening the switch 16.
JP2650981A 1981-02-25 1981-02-25 Voltage sweeping circuit and its driving method Pending JPS57141122A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2650981A JPS57141122A (en) 1981-02-25 1981-02-25 Voltage sweeping circuit and its driving method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2650981A JPS57141122A (en) 1981-02-25 1981-02-25 Voltage sweeping circuit and its driving method

Publications (1)

Publication Number Publication Date
JPS57141122A true JPS57141122A (en) 1982-09-01

Family

ID=12195442

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2650981A Pending JPS57141122A (en) 1981-02-25 1981-02-25 Voltage sweeping circuit and its driving method

Country Status (1)

Country Link
JP (1) JPS57141122A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5025160A (en) * 1973-06-01 1975-03-17
JPS5468268A (en) * 1977-11-10 1979-06-01 Yokogawa Hokushin Electric Corp X-y recorder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5025160A (en) * 1973-06-01 1975-03-17
JPS5468268A (en) * 1977-11-10 1979-06-01 Yokogawa Hokushin Electric Corp X-y recorder

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