JPH0238878U - - Google Patents
Info
- Publication number
- JPH0238878U JPH0238878U JP1988117480U JP11748088U JPH0238878U JP H0238878 U JPH0238878 U JP H0238878U JP 1988117480 U JP1988117480 U JP 1988117480U JP 11748088 U JP11748088 U JP 11748088U JP H0238878 U JPH0238878 U JP H0238878U
- Authority
- JP
- Japan
- Prior art keywords
- satellite
- broadcasting
- terrestrial
- signal
- signal output
- 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.)
- Granted
Links
- 230000008054 signal transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Television Receiver Circuits (AREA)
Description
第１図はこの考案の一実施例の回路図、第２図
は同実施例の出力特性図、第３図は同実施例の使
用状態を示すブロツク図、第４図は従来のブース
タ電源装置の使用状態を示すブロツク図である。
１…高周波入力端子、２…ＵＨＦ−ＶＨＦ帯出
力端子、３…衛星放送第１中間周波信号出力端子
、４…低域通過濾波器、６…高域通過濾波器、１
０…直流電源回路、１４…電流制限回路、２１…
トランジスタ（開閉素子）。
Fig. 1 is a circuit diagram of an embodiment of this invention, Fig. 2 is an output characteristic diagram of the embodiment, Fig. 3 is a block diagram showing the usage state of the embodiment, and Fig. 4 is a conventional booster power supply device. FIG. 1...High frequency input terminal, 2...UHF-VHF band output terminal, 3...Satellite broadcasting first intermediate frequency signal output terminal, 4...Low pass filter, 6...High pass filter, 1
0...DC power supply circuit, 14...Current limiting circuit, 21...
Transistor (switching element).
Claims (1)
スタ及び放送衛星からの衛星放送信号を受信する
ための衛星放送受信コンバータからの各信号が伝
送される信号伝送線が接続される高周波入力端子
と、受像機に接続される地上放送信号出力端子と
、上記衛星放送受信コンバータ駆動用の直流電源
を含む衛星放送受信チユーナに接続される衛星放
送第１中間周波信号出力端子と、上記高周波入力
端子及び上記地上放送信号出力端子の間に接続さ
れ上記地上放送信号を通過させる第１の濾波器と
、上記高周波入力端子及び上記衛星放送第１中間
周波信号出力端子の間に接続され上記衛星放送第
１中間周波信号を通過させる第２の濾波器と、上
記第１の濾波器の上記地上放送信号端子側に一端
が接続され通過直流電流を上記ブースタの駆動に
必要な電流値に制限する電流制限回路と、この電
流制限回路の他端に接続された上記ブースタ用直
流電源回路と、上記第１の濾波器の上記地上放送
信号端子側と上記衛星放送第１中間周波信号端子
との間に介在し上記電流制限回路を流れる定電流
に応動して閉路する開閉素子とよりなるテレビジ
ヨン受像用ブースタ電源装置。 A high frequency input terminal to which signal transmission lines to which signals from a terrestrial broadcasting signal booster transmitted from a terrestrial broadcasting station and a satellite broadcasting receiving converter for receiving satellite broadcasting signals from a broadcasting satellite are transmitted are connected, and an image receiving terminal. a terrestrial broadcast signal output terminal connected to the satellite broadcast signal output terminal, a satellite broadcast first intermediate frequency signal output terminal connected to the satellite broadcast reception tuner including a DC power supply for driving the satellite broadcast reception converter, the high frequency input terminal and the terrestrial broadcast signal output terminal connected to the satellite broadcast reception tuner; a first filter connected between the broadcast signal output terminals and passing the terrestrial broadcast signal; a first filter connected between the high frequency input terminal and the satellite broadcast first intermediate frequency signal output terminal and transmitting the satellite broadcast first intermediate frequency signal; a second filter that allows the signal to pass; a current limiting circuit that has one end connected to the terrestrial broadcasting signal terminal side of the first filter and limits the passing DC current to a current value necessary for driving the booster; The booster DC power supply circuit connected to the other end of the current limiting circuit is interposed between the terrestrial broadcasting signal terminal side of the first filter and the satellite broadcasting first intermediate frequency signal terminal. A booster power supply device for television reception comprising a switching element that closes in response to a constant current flowing through a limiting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988117480U JPH0448062Y2 (en) | 1988-09-07 | 1988-09-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988117480U JPH0448062Y2 (en) | 1988-09-07 | 1988-09-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0238878U true JPH0238878U (en) | 1990-03-15 |
| JPH0448062Y2 JPH0448062Y2 (en) | 1992-11-12 |
Family
ID=31360976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988117480U Expired JPH0448062Y2 (en) | 1988-09-07 | 1988-09-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0448062Y2 (en) |
-
1988
- 1988-09-07 JP JP1988117480U patent/JPH0448062Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0448062Y2 (en) | 1992-11-12 |
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