JPH01162982U - - Google Patents
Info
- Publication number
- JPH01162982U JPH01162982U JP6022188U JP6022188U JPH01162982U JP H01162982 U JPH01162982 U JP H01162982U JP 6022188 U JP6022188 U JP 6022188U JP 6022188 U JP6022188 U JP 6022188U JP H01162982 U JPH01162982 U JP H01162982U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- switch
- series circuit
- thermistor
- control signal
- 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
Links
- 230000005347 demagnetization Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Description
第１図は本考案の一実施例の自動消磁回路を含
む電源回路の回路図、第２図は第１図の実施例の
消磁動作のタイムチヤート、第３図および第４図
は消磁コイルに流れる電流波形図、第５図は従来
例の自動消磁回路を含む電源回路の回路図である
。
９……マイクロコンピユータ（制御回路）、１
１……正特性サーミスタ、１２……消磁コイル、
１３……直列回路、１４……スイツチ回路、Ａ…
…電源ライン。
Fig. 1 is a circuit diagram of a power supply circuit including an automatic degaussing circuit according to an embodiment of the present invention, Fig. 2 is a time chart of degaussing operation of the embodiment of Fig. 1, and Figs. 3 and 4 are a diagram of a degaussing coil. FIG. 5 is a circuit diagram of a power supply circuit including a conventional automatic degaussing circuit. 9...Microcomputer (control circuit), 1
1... Positive characteristic thermistor, 12... Demagnetizing coil,
13...Series circuit, 14...Switch circuit, A...
...power line.
Claims (1)
列回路と、 該直列回路をスイツチ動作制御信号に応答して
交流電源からの電源ラインに接続・解放するスイ
ツチ回路と、 前記正特性サーミスタの非通電時間によつて該
正特性サーミスタの温度状態を判別し、この温度
状態に基づいて前記スイツチ回路にスイツチ動作
制御信号を出力して前記直列回路による消磁動作
を制御する制御回路とを備え、 前記制御回路は、正特性サーミスタが所定の温
度状態にないときには、前記直列回路を前記電源
ラインから解放するスイツチ動作制御信号を出力
することを特徴とする自動消磁回路。[Claims for Utility Model Registration] A series circuit consisting of a positive characteristic thermistor and a degaussing coil, a switch circuit that connects and disconnects the series circuit to a power line from an AC power source in response to a switch operation control signal, and the positive characteristic a control circuit that determines the temperature state of the positive temperature coefficient thermistor based on the non-energization time of the thermistor, and outputs a switch operation control signal to the switch circuit based on the temperature state to control the demagnetization operation by the series circuit; An automatic degaussing circuit, wherein the control circuit outputs a switch operation control signal for disconnecting the series circuit from the power supply line when the positive temperature coefficient thermistor is not in a predetermined temperature state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6022188U JPH01162982U (en) | 1988-05-06 | 1988-05-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6022188U JPH01162982U (en) | 1988-05-06 | 1988-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01162982U true JPH01162982U (en) | 1989-11-14 |
Family
ID=31285939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6022188U Pending JPH01162982U (en) | 1988-05-06 | 1988-05-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01162982U (en) |
-
1988
- 1988-05-06 JP JP6022188U patent/JPH01162982U/ja active Pending
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