JPH0186789U - - Google Patents
Info
- Publication number
- JPH0186789U JPH0186789U JP18356487U JP18356487U JPH0186789U JP H0186789 U JPH0186789 U JP H0186789U JP 18356487 U JP18356487 U JP 18356487U JP 18356487 U JP18356487 U JP 18356487U JP H0186789 U JPH0186789 U JP H0186789U
- Authority
- JP
- Japan
- Prior art keywords
- thermistor
- series
- resistor
- degaussing
- degaussing coil
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 230000005347 demagnetization Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Description
第１図は本考案の一実施例の電気回路図、第２
図は従来の電気回路図である。
ＡＣ……交流電源、ＳＷ……電源スイツチ、Ｔ
Ｈ……正特性サーミスタ、Ｌ……消磁コイル、Ｒ
１……限流用抵抗、ＴＲ……スイツチング素子、
ＶＳ……電圧検出回路。
Fig. 1 is an electrical circuit diagram of one embodiment of the present invention;
The figure is a conventional electrical circuit diagram. AC...alternating current power supply, SW...power switch, T
H...Positive characteristic thermistor, L...Demagnetizing coil, R
1...Current limiting resistor, TR...Switching element,
VS...Voltage detection circuit.
Claims (1)
および消磁コイルが直列接続され、前記電源スイ
ツチのオン時に、前記正特性サーミスタを介して
通電される前記消磁コイルにより消磁を行なうと
ともに、前記サーミスタの電流が流れることに伴
う抵抗値の増大により前記消磁コイルへの電流を
減衰するようになつたテレビジヨン受像機の自動
消磁回路において、前記正特性サーミスタに、限
流用抵抗を直列に接続するとともに、この限流用
抵抗に、該抵抗の短絡用スイツチング素子を並列
接続し、このスイツチング素子を入力電源電圧が
所定値以下であるのを検出してオンさせる電圧検
出回路を備えてなる自動消磁回路。 A power switch, a positive characteristic thermistor, and a degaussing coil are connected in series to an AC power source, and when the power switch is turned on, demagnetization is performed by the degaussing coil, which is energized through the positive characteristic thermistor, and current flows through the thermistor. In the automatic degaussing circuit of a television receiver, which has come to attenuate the current flowing to the degaussing coil due to the increase in resistance value associated with this, a current limiting resistor is connected in series with the positive temperature coefficient thermistor, and the current limiting resistor is connected in series with the positive temperature coefficient thermistor. An automatic degaussing circuit comprising a resistor and a voltage detection circuit that connects a short-circuiting switching element of the resistor in parallel and turns on the switching element when it detects that the input power supply voltage is below a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18356487U JPH0186789U (en) | 1987-11-30 | 1987-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18356487U JPH0186789U (en) | 1987-11-30 | 1987-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0186789U true JPH0186789U (en) | 1989-06-08 |
Family
ID=31474983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18356487U Pending JPH0186789U (en) | 1987-11-30 | 1987-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0186789U (en) |
-
1987
- 1987-11-30 JP JP18356487U patent/JPH0186789U/ja active Pending
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