JPS6025248U - transmitter - Google Patents
transmitterInfo
- Publication number
- JPS6025248U JPS6025248U JP11660183U JP11660183U JPS6025248U JP S6025248 U JPS6025248 U JP S6025248U JP 11660183 U JP11660183 U JP 11660183U JP 11660183 U JP11660183 U JP 11660183U JP S6025248 U JPS6025248 U JP S6025248U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- amplifier
- transmitter
- feedback amplifier
- control
- 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
Landscapes
- Amplifiers (AREA)
- Transmitters (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のＦＭ送信機のブロック図、第２図は従来
の自動出力制御回路の一例を示す回路図、第３図はこの
考案の一実施例を示すＦＭ送信機のブロック図゛、第４
図はその具体回路を示す回路図である。
′ 図中、２は高周波両幅回路、３は電力増幅回路、４
は進行波検出回路、５は帰還増幅器、９は自動出力制御
回路、１５は電圧検出回路、１６は電圧検出回路である
。なお図中同一符号は同−又は相当部分を示す。Fig. 1 is a block diagram of a conventional FM transmitter, Fig. 2 is a circuit diagram showing an example of a conventional automatic output control circuit, and Fig. 3 is a block diagram of an FM transmitter showing an embodiment of this invention. Fourth
The figure is a circuit diagram showing the specific circuit. ' In the figure, 2 is a high-frequency double-width circuit, 3 is a power amplifier circuit, and 4 is a high-frequency double-width circuit.
1 is a traveling wave detection circuit, 5 is a feedback amplifier, 9 is an automatic output control circuit, 15 is a voltage detection circuit, and 16 is a voltage detection circuit. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (2)
この電力増幅器の送信出力レベルを検出し、その検出レ
ベルを制御電圧として上記高周波増幅器の電源電圧を制
御し送信出力の安定化を図る帰還増幅器を有する送信機
において、上記帰還増幅器の入力側あるいは出力側の電
源電圧と上記制御電圧との差電圧を検出すると共にその
検出電圧が所定レベル以上に達した時、上記帰還増幅器
の制御動作を停止あるいは制限させる電圧検出回路を備
えたことを特徴とする送信機。(1) A high frequency amplifier and a power amplifier are connected in cascade,
In a transmitter having a feedback amplifier that detects the transmission output level of the power amplifier and uses the detection level as a control voltage to control the power supply voltage of the high frequency amplifier and stabilize the transmission output, the input side or the output of the feedback amplifier is provided. The feedback amplifier is characterized by comprising a voltage detection circuit that detects a voltage difference between the side power supply voltage and the control voltage, and stops or limits the control operation of the feedback amplifier when the detected voltage reaches a predetermined level or higher. transmitter.
ツェナ電圧を越えた電源電圧により帰還増幅器の動作を
制御するようにしたことを特徴とする実用新案登録請求
の範囲第１項記載の送信機。(2) The transmitter according to claim 1 of the utility model registration claim, characterized in that the voltage detection circuit is constituted by a Zener diode, and the operation of the feedback amplifier is controlled by a power supply voltage exceeding the Zener voltage. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11660183U JPS6025248U (en) | 1983-07-25 | 1983-07-25 | transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11660183U JPS6025248U (en) | 1983-07-25 | 1983-07-25 | transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6025248U true JPS6025248U (en) | 1985-02-20 |
Family
ID=30268724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11660183U Pending JPS6025248U (en) | 1983-07-25 | 1983-07-25 | transmitter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6025248U (en) |
-
1983
- 1983-07-25 JP JP11660183U patent/JPS6025248U/en active Pending
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