JPS5767320A - Saw tooth wave signal forming circuit - Google Patents

Saw tooth wave signal forming circuit

Info

Publication number
JPS5767320A
JPS5767320A JP14404480A JP14404480A JPS5767320A JP S5767320 A JPS5767320 A JP S5767320A JP 14404480 A JP14404480 A JP 14404480A JP 14404480 A JP14404480 A JP 14404480A JP S5767320 A JPS5767320 A JP S5767320A
Authority
JP
Japan
Prior art keywords
resonance
current
saw tooth
resonance current
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
JP14404480A
Other languages
Japanese (ja)
Inventor
Katsuo Isono
Susumu Akazawa
Kiyonori Tominaga
Tomonari Imayasu
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP14404480A priority Critical patent/JPS5767320A/en
Publication of JPS5767320A publication Critical patent/JPS5767320A/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
    • H03K4/60—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 current is produced through an inductor
    • H03K4/62—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 current is produced through an inductor using a semiconductor device operating as a switching device

Landscapes

  • Details Of Television Scanning (AREA)

Abstract

PURPOSE:To reduce power consumption, by controlling the resonance operation by the switching system to form a saw tooth wave signal. CONSTITUTION:When a switching pulse Ps is supplied to a switching transistor Q, a resonance current loop of a resonance circuit 20 is formed, and electric charge stored in a capacitor C is discharged through a coil L, and therefore, a resonance current iL is flowed to the coil L. A width Tb of this resonance current iL is determined by a resonance frequency fc; and if a pulse width Ta of the switching pulse Ps is longer than the width Tb, concretely, Tb<=Ta<=2Tb is true, the negative half cycle of the resonance current iL is stopped by a diode d, and therefore, the negative resonance current is not flowed to the capacitor C. Consequently, the resonance current iL becomes a positive pulse current. In case that a positive pulse voltage is flowed to the resonance circuit 20, a resonance voltage Vc of saw tooth waves is generated in both ends of the capacitor C.
JP14404480A 1980-10-15 1980-10-15 Saw tooth wave signal forming circuit Pending JPS5767320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14404480A JPS5767320A (en) 1980-10-15 1980-10-15 Saw tooth wave signal forming circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14404480A JPS5767320A (en) 1980-10-15 1980-10-15 Saw tooth wave signal forming circuit

Publications (1)

Publication Number Publication Date
JPS5767320A true JPS5767320A (en) 1982-04-23

Family

ID=15353009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14404480A Pending JPS5767320A (en) 1980-10-15 1980-10-15 Saw tooth wave signal forming circuit

Country Status (1)

Country Link
JP (1) JPS5767320A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03188709A (en) * 1989-12-19 1991-08-16 Hitachi Ltd Sawtooth wave generating circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5323652A (en) * 1976-08-17 1978-03-04 Toyo Glass Co Ltd Method of discriminating type number of glass bottle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5323652A (en) * 1976-08-17 1978-03-04 Toyo Glass Co Ltd Method of discriminating type number of glass bottle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03188709A (en) * 1989-12-19 1991-08-16 Hitachi Ltd Sawtooth wave generating circuit
US5225714A (en) * 1989-12-19 1993-07-06 Hitachi, Ltd. Sawtooth waveform generator for a convergence correction circuit

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