JPH0181040U - - Google Patents
Info
- Publication number
- JPH0181040U JPH0181040U JP1987177460U JP17746087U JPH0181040U JP H0181040 U JPH0181040 U JP H0181040U JP 1987177460 U JP1987177460 U JP 1987177460U JP 17746087 U JP17746087 U JP 17746087U JP H0181040 U JPH0181040 U JP H0181040U
- Authority
- JP
- Japan
- Prior art keywords
- detection signal
- power
- outputs
- circuit
- 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.)
- Pending
Links
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- Transmitters (AREA)
Description
第１図は、本考案の一実施例を示すブロツク図
、第２図は、一実施例の要部を示す回路図、第３
図および第４図は、従来回路を示すブロツク図で
ある。
３０……無線送信機、３１……前段増幅器、３
２……終段増幅器、３４……第２の電力検出回路
、３５……選択回路、３８……可変制御回路、４
０……ブースタ（電力増幅器）、４１……前段増
幅器、４２……終段増幅器、４４……第１の電力
検出回路。
FIG. 1 is a block diagram showing one embodiment of the present invention, FIG. 2 is a circuit diagram showing main parts of one embodiment, and FIG.
1 and 4 are block diagrams showing conventional circuits. 30...Radio transmitter, 31...Pre-stage amplifier, 3
2... Final stage amplifier, 34... Second power detection circuit, 35... Selection circuit, 38... Variable control circuit, 4
0... Booster (power amplifier), 41... Pre-stage amplifier, 42... Final stage amplifier, 44... First power detection circuit.
Claims (1)
出力電力を増幅出力する電力増幅器とから構成さ
れる無線送信装置の送信出力を制御するための送
信出力制御回路であつて、 前記電力増幅器の出力電力を検出して該出力電
力に対応する検出信号を出力する第１の電力検出
回路と、 前記無線送信機の出力電力を検出して、該出力
電力に対応する検出信号を出力する第２の電力検
出回路と、 前記第１の電力検出回路からの検出信号が所定
値より大きいときは該検出信号を選択出力し、該
検出信号が所定値より小さいときは前記第２の電
力検出回路からの検出信号を選択出力する選択回
路と、 前記選択回路によつて選択された検出信号によ
つて前記無線送信機の出力電力を可変させる可変
制御回路とを備えたことを特徴とする送信出力制
御回路。[Claims for Utility Model Registration] A transmission output control circuit for controlling the transmission output of a wireless transmitter, which is composed of a wireless transmitter and a power amplifier connected to the wireless transmitter and amplifies and outputs the output power. a first power detection circuit that detects the output power of the power amplifier and outputs a detection signal corresponding to the output power; and a first power detection circuit that detects the output power of the wireless transmitter and outputs a detection signal corresponding to the output power. a second power detection circuit that outputs a detection signal that outputs a detection signal; when the detection signal from the first power detection circuit is larger than a predetermined value, the detection signal is selectively output; and when the detection signal is smaller than the predetermined value, the detection signal is selectively outputted; A selection circuit that selectively outputs the detection signal from the second power detection circuit; and a variable control circuit that varies the output power of the wireless transmitter based on the detection signal selected by the selection circuit. A transmission output control circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987177460U JPH0181040U (en) | 1987-11-19 | 1987-11-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987177460U JPH0181040U (en) | 1987-11-19 | 1987-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0181040U true JPH0181040U (en) | 1989-05-31 |
Family
ID=31469123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987177460U Pending JPH0181040U (en) | 1987-11-19 | 1987-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0181040U (en) |
-
1987
- 1987-11-19 JP JP1987177460U patent/JPH0181040U/ja active Pending