JPS59193075U - Demagnetizing device for electrical equipment - Google Patents

Demagnetizing device for electrical equipment

Info

Publication number
JPS59193075U
JPS59193075U JP8629383U JP8629383U JPS59193075U JP S59193075 U JPS59193075 U JP S59193075U JP 8629383 U JP8629383 U JP 8629383U JP 8629383 U JP8629383 U JP 8629383U JP S59193075 U JPS59193075 U JP S59193075U
Authority
JP
Japan
Prior art keywords
degaussing
relay switch
circuit
turned
effect transistor
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
JP8629383U
Other languages
Japanese (ja)
Inventor
明 清水
小原 範信
Original Assignee
株式会社東芝
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 株式会社東芝 filed Critical 株式会社東芝
Priority to JP8629383U priority Critical patent/JPS59193075U/en
Publication of JPS59193075U publication Critical patent/JPS59193075U/en
Pending legal-status Critical Current

Links

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来のポータプルタイプ或いは小形カラーテレ
ビジョン受像機に使用した消磁回路を示す回路図、第2
図は消磁電流波形を示す波形図、第3図は本考案に係る
電気機器の消磁装置の一例を示す回路図、第4図は第3
図に示す回路の動作を説明する波形図、第5図は本考案
の他○実施例を示す消磁装置の回路図、第6図は第5図
に示す回路の動作を説明する波形図である。 1.1A・・・直流電源、Sl、S2・・・電源スィッ
チ、2、 7. 9. 12. 13. 14・・・抵
抗、5・・・消磁コイル、6・・−リレースイッチ、3
,8.10・・・コンデンサ、11・・・電界効果トラ
ンジスタ、15・・・バイポーラトランジスタ。
Figure 1 is a circuit diagram showing a degaussing circuit used in a conventional portable type or small color television receiver;
The figure is a waveform diagram showing the degaussing current waveform, FIG. 3 is a circuit diagram showing an example of the degaussing device for electrical equipment according to the present invention, and FIG.
FIG. 5 is a circuit diagram of a degaussing device showing an embodiment of the present invention, and FIG. 6 is a waveform diagram explaining the operation of the circuit shown in FIG. 5. . 1.1A...DC power supply, Sl, S2...Power switch, 2, 7. 9. 12. 13. 14...Resistor, 5...Degaussing coil, 6...-Relay switch, 3
, 8.10... Capacitor, 11... Field effect transistor, 15... Bipolar transistor.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] (1)直流電源と、直流電源の投入と同時に充電されそ
の充電電圧に基づいて消磁コイルに消磁電流を流すよう
に成された消磁回路と、この消磁回路に挿入されそのオ
ン、オフによって消磁コイルに消磁電流を流すためのリ
レースイッチと、このリレースイッチを直流電源投入時
から所定時間経過した後にオンさせるように駆動するた
めのリレースイッチの駆動回路とを具備し、直流電源投
入後は前記消磁回路の消磁コイルに自動的に消磁電流が
供給されて消磁動作を行なうように構成したことを特徴
とする電気機器の消磁装置。
(1) A DC power source, a degaussing circuit that is charged at the same time as the DC power is turned on and is configured to flow a degaussing current to the degaussing coil based on the charging voltage, and a degaussing coil that is inserted into this degaussing circuit and turned on and off. The relay switch is equipped with a relay switch for passing a degaussing current through the relay switch, and a drive circuit for the relay switch for driving the relay switch to turn on after a predetermined period of time has elapsed since the DC power is turned on. 1. A degaussing device for electrical equipment, characterized in that a degaussing current is automatically supplied to a degaussing coil of a circuit to perform a degaussing operation.
(2)前記リレースイッチの駆動回路は、直流電源投入
によって充電される時定数回路と、この時定数回路に充
電される電圧が所定電圧に達したとき短絡する電界効果
トランジスタと、この電界効果トランジスタが短絡する
までの間前記リレースイッチをオフ状態とし前記電界効
果トランジスタの短絡によって前記リレースイッチをオ
ンさせるためのバイポーラトランジスタとから構成され
ることを特徴とする実用新案登録請求の範囲第1項に記
載した電気機器の消磁装置。
(2) The drive circuit for the relay switch includes a time constant circuit that is charged when the DC power is turned on, a field effect transistor that is short-circuited when the voltage charged in this time constant circuit reaches a predetermined voltage, and this field effect transistor. and a bipolar transistor for keeping the relay switch in an off state until the field effect transistor is short-circuited and turning on the relay switch by short-circuiting the field-effect transistor. Demagnetizing device for the electrical equipment listed.
JP8629383U 1983-06-08 1983-06-08 Demagnetizing device for electrical equipment Pending JPS59193075U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8629383U JPS59193075U (en) 1983-06-08 1983-06-08 Demagnetizing device for electrical equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8629383U JPS59193075U (en) 1983-06-08 1983-06-08 Demagnetizing device for electrical equipment

Publications (1)

Publication Number Publication Date
JPS59193075U true JPS59193075U (en) 1984-12-21

Family

ID=30216231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8629383U Pending JPS59193075U (en) 1983-06-08 1983-06-08 Demagnetizing device for electrical equipment

Country Status (1)

Country Link
JP (1) JPS59193075U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836094A (en) * 1981-08-26 1983-03-02 Matsushita Electric Ind Co Ltd Magnetic eraser
JPS5839185A (en) * 1981-09-02 1983-03-07 Matsushita Electric Ind Co Ltd Degaussing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836094A (en) * 1981-08-26 1983-03-02 Matsushita Electric Ind Co Ltd Magnetic eraser
JPS5839185A (en) * 1981-09-02 1983-03-07 Matsushita Electric Ind Co Ltd Degaussing device

Similar Documents

Publication Publication Date Title
JPS59193075U (en) Demagnetizing device for electrical equipment
JPS6343611Y2 (en)
JPS5972888U (en) Control device for small DC motor
JPS5991072U (en) hold down circuit
JPS59109108U (en) Plunger drive circuit
JPS5999340U (en) Relay drive circuit
JPS5963688U (en) Starting circuit of switching power supply
JPS607142U (en) Coil drive circuit device
JPS58127898U (en) motor drive circuit
JPS603631U (en) timer circuit
JPS5999203U (en) power supply circuit
JPS5859395U (en) Step motor drive circuit
JPS5918589U (en) power circuit
JPS6068772U (en) automatic degaussing device
JPS59135099U (en) DC motor drive circuit
JPS6031711U (en) Abnormal write prevention device
JPS5999400U (en) Acceleration power supply control device
JPS5971437U (en) tape recorder
JPS603936U (en) Tape recorder pause device
JPS5950589U (en) power supply
JPS58159897U (en) Control device for small DC motor
JPS58164011U (en) switching power supply circuit
JPS598291U (en) chiyotsupa circuit
JPS59131581U (en) Electronic ignition system output circuit
JPS5978898U (en) Motor drive control circuit