JPS5573131A - Saw-tooth wave generator - Google Patents

Saw-tooth wave generator

Info

Publication number
JPS5573131A
JPS5573131A JP14582878A JP14582878A JPS5573131A JP S5573131 A JPS5573131 A JP S5573131A JP 14582878 A JP14582878 A JP 14582878A JP 14582878 A JP14582878 A JP 14582878A JP S5573131 A JPS5573131 A JP S5573131A
Authority
JP
Japan
Prior art keywords
saw
power source
resistance
tooth wave
diode
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.)
Granted
Application number
JP14582878A
Other languages
Japanese (ja)
Other versions
JPS5953726B2 (en
Inventor
Tsutomu Takayama
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.)
ALPS NOOTORONIKUSU KK
Original Assignee
ALPS NOOTORONIKUSU KK
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 ALPS NOOTORONIKUSU KK filed Critical ALPS NOOTORONIKUSU KK
Priority to JP14582878A priority Critical patent/JPS5953726B2/en
Publication of JPS5573131A publication Critical patent/JPS5573131A/en
Publication of JPS5953726B2 publication Critical patent/JPS5953726B2/en
Expired 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

Landscapes

  • Details Of Television Scanning (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To improve both the rise and the linearity of the slope part for the saw- tooth wave by providing the diode between the input terminal and switching transistor Tr plus the resistance and Tr between switching Tr and the power source respectively. CONSTITUTION:Diode 13 is connected between switching Tr3 and synchronous signal input terminal 2, and at the same time Tr12 is provided between the base of Tr3 and power source 1 plus resistance 10 between the collector of Tr3 and the power source respectively. Furthermore, capacitor 11 is connected between the base and the collector of Tr3. With application of the synchronous signal, Tr3 conducts. And Tr12 conducts by the potential difference to resistance 10 to increase the base current of Tr3. As a result, capacitors 6 and 7 are charged instantaneously. When the input signal is cut off, reverse current preventing diode 13 becomes nonconductive. And capacitor 11 starts charging with Tr3 and 11 put under the conductive state to prevent the sudden change for the overlap voltage of capacitors 6 and 7. As a result, the saw-tooth wave can be obtained with the sudden rise and the improved linearity at the slope part.
JP14582878A 1978-11-25 1978-11-25 Sawtooth wave generator Expired JPS5953726B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14582878A JPS5953726B2 (en) 1978-11-25 1978-11-25 Sawtooth wave generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14582878A JPS5953726B2 (en) 1978-11-25 1978-11-25 Sawtooth wave generator

Publications (2)

Publication Number Publication Date
JPS5573131A true JPS5573131A (en) 1980-06-02
JPS5953726B2 JPS5953726B2 (en) 1984-12-26

Family

ID=15394051

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14582878A Expired JPS5953726B2 (en) 1978-11-25 1978-11-25 Sawtooth wave generator

Country Status (1)

Country Link
JP (1) JPS5953726B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0716184U (en) * 1993-09-01 1995-03-17 春日電機株式会社 Ultrasonic detector

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01267917A (en) * 1988-04-20 1989-10-25 Matsushita Electric Ind Co Ltd Key input device
JPH01172233U (en) * 1988-05-26 1989-12-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0716184U (en) * 1993-09-01 1995-03-17 春日電機株式会社 Ultrasonic detector

Also Published As

Publication number Publication date
JPS5953726B2 (en) 1984-12-26

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