JPH039539U - - Google Patents
Info
- Publication number
- JPH039539U JPH039539U JP6674589U JP6674589U JPH039539U JP H039539 U JPH039539 U JP H039539U JP 6674589 U JP6674589 U JP 6674589U JP 6674589 U JP6674589 U JP 6674589U JP H039539 U JPH039539 U JP H039539U
- Authority
- JP
- Japan
- Prior art keywords
- control circuit
- power control
- transmission
- transmission power
- automatic
- 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
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 101000588924 Anthopleura elegantissima Delta-actitoxin-Ael1a Proteins 0.000 description 1
Landscapes
- Transmitters (AREA)
Description
第１図、第２図及び第４図は本考案の実施例を
示すブロツク図、第３図は従来の実施例を示すブ
ロツク図である。従来のブロツク図である第５図
は、周波数対検波出力特性、第６図は電圧対可変
容量ダイオード特性を示す。第７図は、可変容量
ダイオードで補正後の周波数検波器出力特性であ
る。第８図は、可変容量ダイオードで補正後の周
波数対送信電力特性である。
１：シンセサイザ、２：マイクロコンピユータ
、２，３：ＲＯＭ、１：低周波回路図、２：電圧
制御発振器（ＶＣＯ）、３：周波数制御部、４：
電圧力増幅器初段（ＰＡ１）、５：ＡＰＣ電圧制
御部、７：電力増幅器終段（ＰＡ２）、８：結合
器、９：検波回路、１０：自動電力制御部（ＡＰ
Ｃ）、１１：基準電圧、１２：基準電圧、１３：
周波数制御電圧、１４：切換スイツチ、１５：検
波器負荷抵抗、１６：検波器負荷抵抗、１７：空
中線、２４：プリアンプ、２５：Ｄ／Ａ変換器、
２８：方向性結合器、２９：ＬＰＦ、３２：固定
容量、３３：可変容量ダイオード。
1, 2, and 4 are block diagrams showing an embodiment of the present invention, and FIG. 3 is a block diagram showing a conventional embodiment. FIG. 5, which is a conventional block diagram, shows frequency versus detection output characteristics, and FIG. 6 shows voltage versus variable capacitance diode characteristics. FIG. 7 shows the frequency detector output characteristic after correction using a variable capacitance diode. FIG. 8 shows frequency versus transmission power characteristics after correction using a variable capacitance diode. 1: Synthesizer, 2: Microcomputer, 2, 3: ROM, 1: Low frequency circuit diagram, 2: Voltage controlled oscillator (VCO), 3: Frequency control section, 4:
Voltage power amplifier first stage (PA1), 5: APC voltage control section, 7: Power amplifier final stage (PA2), 8: Combiner, 9: Detection circuit, 10: Automatic power control section (AP
C), 11: Reference voltage, 12: Reference voltage, 13:
Frequency control voltage, 14: changeover switch, 15: detector load resistance, 16: detector load resistance, 17: antenna, 24: preamplifier, 25: D/A converter,
28: Directional coupler, 29: LPF, 32: Fixed capacitance, 33: Variable capacitance diode.
Claims (1)
方式において、送信周波数切換に際し、自動電力
制御回路出力を一定にするため、前述回路の自動
制御以外に送信周波数制御回路から制御信号を与
えて、送信電力のレベルを設定する回路を持つた
ことを特徴とする送信電力制御回路。 ２ 送信出力の一部を検波し、自動電力制御回路
により、送信電力を制御するシンセサイザ無線機
において、検波器出力に可変容量ダイオードを接
続し、前記可変容量ダイオードの逆バイアスとし
て、シンセサイザの分周データの一部をＤ／Ａ変
換器により変換した信号を与えることを特徴とす
る送信電力制御回路。[Claims for Utility Model Registration] 1. In a transmission power control system configured with an automatic power control circuit, in order to keep the output of the automatic power control circuit constant when switching the transmission frequency, a transmission frequency control circuit is provided in addition to the automatic control of the above-mentioned circuit. 1. A transmission power control circuit characterized by having a circuit that sets a transmission power level by giving a control signal from. 2. In a synthesizer radio that detects a part of the transmission output and controls the transmission power using an automatic power control circuit, a variable capacitance diode is connected to the detector output, and the frequency division of the synthesizer is used as a reverse bias of the variable capacitance diode. A transmission power control circuit characterized in that it provides a signal obtained by converting a part of data by a D/A converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6674589U JPH039539U (en) | 1989-06-09 | 1989-06-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6674589U JPH039539U (en) | 1989-06-09 | 1989-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH039539U true JPH039539U (en) | 1991-01-29 |
Family
ID=31599713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6674589U Pending JPH039539U (en) | 1989-06-09 | 1989-06-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH039539U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0267958U (en) * | 1988-11-12 | 1990-05-23 |
-
1989
- 1989-06-09 JP JP6674589U patent/JPH039539U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0267958U (en) * | 1988-11-12 | 1990-05-23 |
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