JPH0382941U - - Google Patents
Info
- Publication number
- JPH0382941U JPH0382941U JP14386189U JP14386189U JPH0382941U JP H0382941 U JPH0382941 U JP H0382941U JP 14386189 U JP14386189 U JP 14386189U JP 14386189 U JP14386189 U JP 14386189U JP H0382941 U JPH0382941 U JP H0382941U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- parallel
- intermediate frequency
- constant voltage
- power supply
- 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
- 230000010355 oscillation Effects 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Circuits Of Receivers In General (AREA)
Description
第１図はこの考案の一実施例の構成を示すブロ
ツク図、第２図は従来のＢＳコンバータの電源回
路の構成を示すブロツク図、第３図は従来の省電
力化を図つたＢＳコンバータの電源回路の構成を
示すブロツク図である。
１……高周波増幅回路、２……局部発振回路、
３……中間周波増幅回路、４……３端子レギユレ
ータ（定電圧発生手段）、５……ＢＳチユーナ、
１８……第１の並列回路、１９……第２の並列回
路、ＺＤ……定電圧ダイオード。
Figure 1 is a block diagram showing the configuration of an embodiment of this invention, Figure 2 is a block diagram showing the configuration of the power supply circuit of a conventional BS converter, and Figure 3 is a block diagram of a conventional BS converter designed to save power. FIG. 2 is a block diagram showing the configuration of a power supply circuit. 1...High frequency amplifier circuit, 2...Local oscillation circuit,
3... Intermediate frequency amplifier circuit, 4... 3-terminal regulator (constant voltage generation means), 5... BS tuner,
18...First parallel circuit, 19...Second parallel circuit, ZD... Constant voltage diode.
Claims (1)
で増幅し、局部発振回路の発振出力と混合して中
間周波信号に変換し、該中間周波信号を中間周波
増幅回路で増幅した後、同軸ケーブルを介してＢ
Ｓチユーナに供給するＢＳコンバータの電源回路
において、 前記ＢＳチユーナから同軸ケーブルに重畳され
て供給される直流電源に基づいて所定の電源電圧
を発生する定電圧発生手段を設け、 前記中間周波増幅回路の電源入力端に定電圧ダ
イオードを並列接続してなる第１の並列回路と、
前記高周波増幅回路および局部発振回路の各電源
入力端を並列接続してなる第２の並列回路とを直
列接続し、前記第１の並列回路の一端を前記定電
圧発生手段の電源出力端に接続し、前記第２の並
列回路の他端を接地したことを特徴とするＢＳコ
ンバータの電源回路。[Claim for Utility Model Registration] A signal received by a BS antenna is amplified by a high frequency amplification circuit, mixed with the oscillation output of a local oscillation circuit and converted into an intermediate frequency signal, and the intermediate frequency signal is amplified by an intermediate frequency amplification circuit. After that, connect B via coaxial cable.
In the power supply circuit of the BS converter that supplies the S tuner, a constant voltage generating means for generating a predetermined power supply voltage based on the DC power supplied from the BS tuner in a superimposed manner on the coaxial cable is provided, and the intermediate frequency amplifier circuit a first parallel circuit formed by connecting a constant voltage diode in parallel to the power input terminal;
A second parallel circuit formed by connecting the power input terminals of the high frequency amplifier circuit and the local oscillation circuit in parallel is connected in series, and one end of the first parallel circuit is connected to the power output terminal of the constant voltage generating means. A power supply circuit for a BS converter, characterized in that the other end of the second parallel circuit is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14386189U JPH0382941U (en) | 1989-12-13 | 1989-12-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14386189U JPH0382941U (en) | 1989-12-13 | 1989-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0382941U true JPH0382941U (en) | 1991-08-23 |
Family
ID=31690613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14386189U Pending JPH0382941U (en) | 1989-12-13 | 1989-12-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0382941U (en) |
-
1989
- 1989-12-13 JP JP14386189U patent/JPH0382941U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH02137137U (en) | ||
| JPH02143616U (en) | ||
| JPH02106736U (en) | ||
| JPS6365309U (en) | ||
| JPH01177625U (en) | ||
| JPS62151242U (en) | ||
| JPS6410817U (en) | ||
| JPS6183317U (en) | ||
| JPS6387910U (en) | ||
| JPS6244524U (en) | ||
| JPS5922196U (en) | infrared remote control device | |
| JPH03125515U (en) | ||
| JPH0429221U (en) | ||
| JPS6440912U (en) | ||
| JPS60124125U (en) | Mute signal generation circuit | |
| JPS5991055U (en) | Power supply circuit for vehicle antenna amplifier | |
| JPS628715U (en) | ||
| JPH02116117U (en) | ||
| JPS58184940U (en) | front end circuit | |
| JPH0344937U (en) | ||
| JPS61131133U (en) | ||
| JPS62112223U (en) | ||
| JPS6361819U (en) | ||
| JPS61107241U (en) | ||
| JPH0390115U (en) |