JPS60169948U - automatic power control circuit - Google Patents
automatic power control circuitInfo
- Publication number
- JPS60169948U JPS60169948U JP5700584U JP5700584U JPS60169948U JP S60169948 U JPS60169948 U JP S60169948U JP 5700584 U JP5700584 U JP 5700584U JP 5700584 U JP5700584 U JP 5700584U JP S60169948 U JPS60169948 U JP S60169948U
- Authority
- JP
- Japan
- Prior art keywords
- control circuit
- power control
- automatic power
- reference voltage
- 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
Landscapes
- 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図は一般的なＡＰＣ回路の概略ブロック図、第２図
は従来のＡＰＣ回路の一例を示す概略構成図、第３図は
その検波電圧可変部の回路図、第４図および第５図は第
２図の検波電圧および出力電力の変化特性図、第６図は
電力検出部の詳細図、第７図はその検波特性図、第８図
は本考案の一実施例を示す概略構成図、第９図はその具
体例を示す回路図、第１０図および第１１図は第８図の
検波電圧および出力電力の変化特性図、第１２図はボリ
ウム回転角に対する出力電力の変化を対比して示す特性
図である。
図中、１はパワーアンプ、２は検出部、３は基準電圧発
生部、４は比較部、５は制御部、ＲＶはボリウム、Ｒ１
はバイアス抵抗である。Figure 1 is a schematic block diagram of a general APC circuit, Figure 2 is a schematic configuration diagram showing an example of a conventional APC circuit, Figure 3 is a circuit diagram of its detection voltage variable section, Figures 4 and 5. is a change characteristic diagram of the detection voltage and output power in Figure 2, Figure 6 is a detailed diagram of the power detection section, Figure 7 is a detection characteristic diagram thereof, and Figure 8 is a schematic configuration diagram showing an embodiment of the present invention. , Figure 9 is a circuit diagram showing a specific example, Figures 10 and 11 are characteristic diagrams of changes in the detected voltage and output power in Figure 8, and Figure 12 is a comparison of changes in output power with respect to the volume rotation angle. FIG. In the figure, 1 is a power amplifier, 2 is a detection section, 3 is a reference voltage generation section, 4 is a comparison section, 5 is a control section, RV is a volume, and R1
is the bias resistance.
Claims (1)
と比較し、比較結果の誤差電圧を帰還して該パワーアン
プの出力を一定に保つ自動電力制御回路において、該基
準電圧をボリウムによって調整可能にした基準電圧発生
部を備えてなることを特徴とする自動電力制御回路。In an automatic power control circuit that detects the output of a power amplifier, compares the detected voltage with a reference voltage, and feeds back the error voltage of the comparison result to keep the output of the power amplifier constant, the reference voltage can be adjusted using a volume control. An automatic power control circuit characterized by comprising a reference voltage generating section having a reference voltage generating section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5700584U JPS60169948U (en) | 1984-04-18 | 1984-04-18 | automatic power control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5700584U JPS60169948U (en) | 1984-04-18 | 1984-04-18 | automatic power control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60169948U true JPS60169948U (en) | 1985-11-11 |
Family
ID=30581136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5700584U Pending JPS60169948U (en) | 1984-04-18 | 1984-04-18 | automatic power control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60169948U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51136546A (en) * | 1975-05-23 | 1976-11-26 | Hitachi Ltd | Device for replacing working rolls |
| JPS57113634A (en) * | 1981-01-06 | 1982-07-15 | Nec Corp | Control circuit for transmitted power |
| JPS58157208A (en) * | 1982-03-15 | 1983-09-19 | Nec Corp | Automatic controlling circuit of transmission output |
-
1984
- 1984-04-18 JP JP5700584U patent/JPS60169948U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51136546A (en) * | 1975-05-23 | 1976-11-26 | Hitachi Ltd | Device for replacing working rolls |
| JPS57113634A (en) * | 1981-01-06 | 1982-07-15 | Nec Corp | Control circuit for transmitted power |
| JPS58157208A (en) * | 1982-03-15 | 1983-09-19 | Nec Corp | Automatic controlling circuit of transmission output |
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