JPH0279616U - - Google Patents
Info
- Publication number
- JPH0279616U JPH0279616U JP15903788U JP15903788U JPH0279616U JP H0279616 U JPH0279616 U JP H0279616U JP 15903788 U JP15903788 U JP 15903788U JP 15903788 U JP15903788 U JP 15903788U JP H0279616 U JPH0279616 U JP H0279616U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- power
- power amplifier
- flowing
- utility
- 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
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Transmitters (AREA)
- Control Of Amplification And Gain Control (AREA)
Description
第１図はこの考案の一実施例による電力増幅器
のブロツク図、第２図は従来の電力増幅器のブロ
ツク図を示す。
図において、１は高周波入力端子、２は小信号
増幅器、３は可変減衰器、４は前段増幅器、５は
電力増幅器、６は包絡線検波器、７は高周波出力
端子、８は差動増幅器、９は基準電圧、１０は分
配器、１１は合成器、１２は電流電圧変換回路、
１３は電流検出回路を示す。なお、図中、同一符
号は同一、又は相当部分を示す。
FIG. 1 shows a block diagram of a power amplifier according to an embodiment of this invention, and FIG. 2 shows a block diagram of a conventional power amplifier. In the figure, 1 is a high frequency input terminal, 2 is a small signal amplifier, 3 is a variable attenuator, 4 is a pre-stage amplifier, 5 is a power amplifier, 6 is an envelope detector, 7 is a high frequency output terminal, 8 is a differential amplifier, 9 is a reference voltage, 10 is a distributor, 11 is a combiner, 12 is a current-voltage conversion circuit,
13 indicates a current detection circuit. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
力制御回路と、終段増幅器への過電流を防止する
ための保護回路を備えたことを特徴とする電力増
幅器。 A power amplifier characterized in that it is equipped with a power control circuit that keeps output power constant and a protection circuit that prevents overcurrent from flowing to a final stage amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15903788U JPH0279616U (en) | 1988-12-06 | 1988-12-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15903788U JPH0279616U (en) | 1988-12-06 | 1988-12-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0279616U true JPH0279616U (en) | 1990-06-19 |
Family
ID=31439893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15903788U Pending JPH0279616U (en) | 1988-12-06 | 1988-12-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0279616U (en) |
-
1988
- 1988-12-06 JP JP15903788U patent/JPH0279616U/ja active Pending
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