JPS5797779A - Horizontal deflecting device for television - Google Patents

Horizontal deflecting device for television

Info

Publication number
JPS5797779A
JPS5797779A JP17432380A JP17432380A JPS5797779A JP S5797779 A JPS5797779 A JP S5797779A JP 17432380 A JP17432380 A JP 17432380A JP 17432380 A JP17432380 A JP 17432380A JP S5797779 A JPS5797779 A JP S5797779A
Authority
JP
Japan
Prior art keywords
time
circuit
drive
trq1
horizontal deflecting
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
JP17432380A
Other languages
Japanese (ja)
Inventor
Tsutomu Watanabe
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP17432380A priority Critical patent/JPS5797779A/en
Publication of JPS5797779A publication Critical patent/JPS5797779A/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

Abstract

PURPOSE:To economize power to enhance the efficiency, by switching the earth potential in the secondary side of a driving transformer of a horizontal deflecting circuit to a negative potential only for the turn-on operation of a drive circuit. CONSTITUTION:When a drive transistor TRQ1 is turned off, a voltage shown in figure (a) is applied to the collector of the drive TRQ1 in a time A, and a switch SW1 of a circuit 4 is connected to the earth side, and the voltage in the time A is applied to the base of a horizontal output TRQ3 to flow a small current shown in the time A of figure (c). When the TRQ1 is turned on, the switch SW1 of the circuit 4 is connected to the side of -B, and a voltage shown in a time B of figure (b) is applied to the base of the TRQ3 to flow the same current as the time B of figure (c). By this operation, a high-efficiency horizontal deflecting circuit is obtained where the drive current is small and an charge emission time Ts is short.
JP17432380A 1980-12-10 1980-12-10 Horizontal deflecting device for television Pending JPS5797779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17432380A JPS5797779A (en) 1980-12-10 1980-12-10 Horizontal deflecting device for television

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17432380A JPS5797779A (en) 1980-12-10 1980-12-10 Horizontal deflecting device for television

Publications (1)

Publication Number Publication Date
JPS5797779A true JPS5797779A (en) 1982-06-17

Family

ID=15976627

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17432380A Pending JPS5797779A (en) 1980-12-10 1980-12-10 Horizontal deflecting device for television

Country Status (1)

Country Link
JP (1) JPS5797779A (en)

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