JPS5840986A - Power supply - Google Patents
Power supplyInfo
- Publication number
- JPS5840986A JPS5840986A JP56139045A JP13904581A JPS5840986A JP S5840986 A JPS5840986 A JP S5840986A JP 56139045 A JP56139045 A JP 56139045A JP 13904581 A JP13904581 A JP 13904581A JP S5840986 A JPS5840986 A JP S5840986A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- circuit
- power
- socket
- contacts
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/63—Generation or supply of power specially adapted for television receivers
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Television Receiver Circuits (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は交流、直流両電源にて駆動されるテレビジョン
受像機の電源−置に関するもので、直流電源使用時のカ
ソード電流を減少させて消費電力を抑え直流電源による
動作時間を長くすることを目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power supply system for a television receiver that is driven by both AC and DC power supplies. The purpose is to extend the operating time.
第１図に従来の電源装置を示す。FIG. 1 shows a conventional power supply device.
図中１は交流電源回路、２は直流ソケットで、直流プラ
グ（図示せず）が挿入されていないときは図示するよう
に接点２ｂと２０が接続されて、交流電源回路１より電
源が負荷３に供給される。一方、上記直流ソケット２に
直流プラグを挿入すると、接点２ｂと２Ｃが切離される
とともに直流プラグの接点が接点２ａ、２ｂに当接して
、交流電源回路１に代わって外部直流電源回路（図示せ
７）より電源が負荷３に供給されるものである。ここで
、４は直流電源オン・オフ用スイッチである。In the figure, 1 is an AC power supply circuit, 2 is a DC socket, and when a DC plug (not shown) is inserted, contacts 2b and 20 are connected as shown in the diagram, and power is supplied from the AC power supply circuit 1 to the load 3. is supplied to On the other hand, when a DC plug is inserted into the DC socket 2, the contacts 2b and 2C are separated and the contacts of the DC plug come into contact with the contacts 2a and 2b, replacing the AC power circuit 1 with the external DC power circuit (not shown). 7), power is supplied to the load 3. Here, 4 is a DC power supply on/off switch.
第２図はテレビジョン受像機の陰極線管およびその周辺
回路を示すもので１図中５は陰極線管。Figure 2 shows the cathode ray tube of a television receiver and its peripheral circuitry. 5 in Figure 1 is the cathode ray tube.
６は輝度調整用可変抵抗器で、この可動端子を移動させ
ることによりカソード電流を変えて輝度を調整すること
ができる。ここで、７，８はそれぞれ抵抗である。Reference numeral 6 denotes a variable resistor for brightness adjustment, and by moving this movable terminal, the cathode current can be changed to adjust the brightness. Here, 7 and 8 are respective resistances.
本発明はこのような電源装置および輝度調整回路を有す
るテレビジョン受像機において、電源として直流電源（
バ・ノテリ、乾電池等）を使用する場き、カソード電流
を減少せしめて消費電力の低減化をはかるものである。The present invention provides a television receiver having such a power supply device and brightness adjustment circuit, which uses a DC power source (
When using battery packs, dry batteries, etc., the cathode current is reduced to reduce power consumption.
以下その一実施例を第３図を用いて説明する。なお−図
中第１図、第２図と同一素子、同一部品には同一番号を
付している。An example of this will be described below with reference to FIG. In the drawings, the same elements and parts as in FIGS. 1 and 2 are designated by the same numbers.
第３図において、１０は第１図の交流電源回路を構成す
る電圧安定化回路で、整流平滑電圧を安定化して負荷３
に供給するものである。この電圧安定化回路１０ば一側
電源ラインを輝度調整用可変抵抗器６の一側と接続し、
この接続点に直流ソケット２の接点２Ｃを接続し、また
同ソケット２の接点２ｂをアースするとともに抵抗１１
を介し。In Figure 3, 10 is a voltage stabilizing circuit that constitutes the AC power supply circuit in Figure 1, and stabilizes the rectified and smoothed voltage to
It is intended to supply One side power supply line of this voltage stabilizing circuit 10 is connected to one side of the brightness adjustment variable resistor 6,
Connect the contact 2C of the DC socket 2 to this connection point, and also ground the contact 2b of the socket 2 and connect the resistor 11.
Via.
て前記−制電源ラインに接続している。したがって抵抗
１１は接点２ｂと２Ｃとの間に挿入されることになる。and is connected to the above-mentioned control power line. Therefore, resistor 11 is inserted between contacts 2b and 2C.
そして、前記電圧安定化回路１０の一側出力端と前記−
制電源ラインと抵抗１１の接続点との間にカソードを抵
抗１１側にしてダイオード１２を挿入している。Then, one side output terminal of the voltage stabilizing circuit 10 and the -
A diode 12 is inserted between the control power line and the connection point of the resistor 11 with its cathode facing the resistor 11 side.
上記構成において交流電源駆動時、すなわち。In the above configuration, when driven by AC power, that is.
直流ソケット２に直流プラグ（図示せず）が挿入されて
いないときは、抵抗１１は直流ソケット２の接点２ｂ、
２ｃの接続により短絡され、一方ダイオード１２は導通
状態となり、電圧安定化回路１０より所定の電圧が負荷
３に供給される。When a DC plug (not shown) is inserted into the DC socket 2, the resistor 11 is connected to the contact 2b of the DC socket 2,
2c is short-circuited, while the diode 12 becomes conductive, and a predetermined voltage is supplied from the voltage stabilizing circuit 10 to the load 3.
次に直流プラグを直流ソケット２に挿入すると接点２ａ
、２ｂＦｃ直流プラグの接点が接続され。Next, when the DC plug is inserted into DC socket 2, contact 2a
, 2bFc DC plug contacts are connected.
接点２ｂと２０が開くため、可変抵抗器６の一側は抵抗
１１を通してアースに接続される。この結果、カソード
電流は減少し、このカソード電流はテレビジョン受像、
機の消費電力の約６割を占めている水平回路に影響を与
えその電流を減少させるため、カソード電流のわずかな
変化で消費電力を大きく低減させることができる。この
結果、バッテリ、乾電池による動作時間を長くすること
ができる。なお、このとき、抵抗１１での電圧降下が抵
抗１０ ａ 、 １０ ｂ 、 １０ ｃによる電圧降
下より大きくなるように抵抗１１の値を設定しているた
め、ダイオード１２はカットオフとなり、負荷３には交
流電源回路に代わって直流電源より電源電圧が供給され
る。 ６以上説明したように本
発明によれば、直流ソケットへの直流プラグの挿入によ
り、電源を交流電源より直流電源に切換えると同時に、
カソード電流を減少させることができ、この結果直流電
源による動作時間を長くすることができ、その実用上の
効果は極めて大なるものがある。Since contacts 2b and 20 are open, one side of variable resistor 6 is connected to ground through resistor 11. As a result, the cathode current decreases, and this cathode current
Since it affects the horizontal circuit, which accounts for about 60% of the machine's power consumption, and reduces its current, a small change in cathode current can significantly reduce power consumption. As a result, the operating time using a battery or dry battery can be extended. Note that at this time, the value of the resistor 11 is set so that the voltage drop across the resistor 11 is greater than the voltage drop across the resistors 10 a , 10 b , and 10 c , so the diode 12 is cut off and the load 3 is The power supply voltage is supplied from a DC power supply instead of an AC power supply circuit. 6. As explained above, according to the present invention, by inserting the DC plug into the DC socket, the power source can be switched from the AC power source to the DC power source, and at the same time,
The cathode current can be reduced, and as a result, the operating time using a DC power source can be extended, which has an extremely large practical effect.
第１図は従来例における電源装置の回路図、第２図はテ
レビジョン受像機の陰極線管周辺回路を示す図、第３図
は本発明の一実施例における電源装置の回路図である。
１・・・・・・交流電源回路、２・・・・・・直流ソケ
ット。
２ａ、２ｂ、２ｃ・・・・・・直流ソケットの各接点、
３・・・・・・負荷、５・・・・・・陰極線管、６・・
・１．・輝度調整用可変抵抗器、１０・・・・・・電圧
安定化回路。
１１・・・・・・抵抗、１２・・・・・・ダイオード。
代理人の氏名 弁理士 中 尾 敏 男 ほか１゛名第
１図
第２図FIG. 1 is a circuit diagram of a conventional power supply device, FIG. 2 is a diagram showing a cathode ray tube peripheral circuit of a television receiver, and FIG. 3 is a circuit diagram of a power supply device according to an embodiment of the present invention. 1... AC power supply circuit, 2... DC socket. 2a, 2b, 2c...each contact of the DC socket,
3...Load, 5...Cathode ray tube, 6...
・1.・Variable resistor for brightness adjustment, 10...Voltage stabilization circuit. 11...Resistor, 12...Diode. Name of agent: Patent attorney Toshio Nakao and 1 other person Figure 1 Figure 2
Claims (1)
は前記交流電源回路からの電源電圧を負荷に供給し、前
記直流プラグが挿入されると前記交流電源回路に代わっ
て直流プラグより供給される直流電源電圧を負荷に供給
する接点機構をもつ直流ソケットと、前記直流プラグが
直流ソケットに挿入されていないときは陰極線管のカソ
ード回路より切離され、前記直流プラグの直流ソケット
への挿入にともなって前記カソード回路に挿入されてカ
ソード電流を減少せしめる手段とを有す、ることを特徴
とする電源装置。an AC power circuit, and a DC power supply that supplies power voltage from the AC power circuit to the load when the DC plug is not inserted, and that is supplied from the DC plug in place of the AC power circuit when the DC plug is inserted; a DC socket having a contact mechanism for supplying voltage to a load; when the DC plug is not inserted into the DC socket, the DC plug is disconnected from the cathode circuit of the cathode ray tube; 1. A power supply device comprising: means inserted into a cathode circuit to reduce cathode current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56139045A JPS5840986A (en) | 1981-09-02 | 1981-09-02 | Power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56139045A JPS5840986A (en) | 1981-09-02 | 1981-09-02 | Power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5840986A true JPS5840986A (en) | 1983-03-10 |
Family
ID=15236171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56139045A Pending JPS5840986A (en) | 1981-09-02 | 1981-09-02 | Power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5840986A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60163939A (en) * | 1984-02-02 | 1985-08-26 | Shin Etsu Chem Co Ltd | Foamed vinyl chloride resin molding and its preparation |
| JPS60179429A (en) * | 1984-02-27 | 1985-09-13 | Shin Etsu Chem Co Ltd | Vinyl chloride resin foam |
-
1981
- 1981-09-02 JP JP56139045A patent/JPS5840986A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60163939A (en) * | 1984-02-02 | 1985-08-26 | Shin Etsu Chem Co Ltd | Foamed vinyl chloride resin molding and its preparation |
| JPH0449863B2 (en) * | 1984-02-02 | 1992-08-12 | Shinetsu Chem Ind Co | |
| JPS60179429A (en) * | 1984-02-27 | 1985-09-13 | Shin Etsu Chem Co Ltd | Vinyl chloride resin foam |
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