JPS5474661A - Waveform generation circuit - Google Patents

Waveform generation circuit

Info

Publication number
JPS5474661A
JPS5474661A JP14305377A JP14305377A JPS5474661A JP S5474661 A JPS5474661 A JP S5474661A JP 14305377 A JP14305377 A JP 14305377A JP 14305377 A JP14305377 A JP 14305377A JP S5474661 A JPS5474661 A JP S5474661A
Authority
JP
Japan
Prior art keywords
capacitor
current source
resistors
transistors
accuracy
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
JP14305377A
Other languages
Japanese (ja)
Inventor
Koichi Nishimura
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 JP14305377A priority Critical patent/JPS5474661A/en
Publication of JPS5474661A publication Critical patent/JPS5474661A/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

  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To obtain greater output at ultra-low frequencies, independently of the accuracy of capacitance value and rsistance value of capacitors and resistors, by charging and discharging the capacitor with a constant current source. CONSTITUTION:The capacitor C and resistors R1, R2 and R3 are connected to the positive and negative terminals 2, 1 of a comparator, and the output terminal 3 is fed back to the positive input terminal 2. The capacitor C is charged and discharged with the constant current source consisting of transistors Q1 to Q8, and since the current source consisting of transistors Q1 to Q8, and since the current for charge and discharge is determined with the constat current source, a given waveform can be obtained independently of the accuracy of capacity of the capacitor C.
JP14305377A 1977-11-28 1977-11-28 Waveform generation circuit Pending JPS5474661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14305377A JPS5474661A (en) 1977-11-28 1977-11-28 Waveform generation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14305377A JPS5474661A (en) 1977-11-28 1977-11-28 Waveform generation circuit

Publications (1)

Publication Number Publication Date
JPS5474661A true JPS5474661A (en) 1979-06-14

Family

ID=15329809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14305377A Pending JPS5474661A (en) 1977-11-28 1977-11-28 Waveform generation circuit

Country Status (1)

Country Link
JP (1) JPS5474661A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0438136U (en) * 1990-07-30 1992-03-31

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0438136U (en) * 1990-07-30 1992-03-31

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