JPH0438143U - - Google Patents
Info
- Publication number
- JPH0438143U JPH0438143U JP7969490U JP7969490U JPH0438143U JP H0438143 U JPH0438143 U JP H0438143U JP 7969490 U JP7969490 U JP 7969490U JP 7969490 U JP7969490 U JP 7969490U JP H0438143 U JPH0438143 U JP H0438143U
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- transmitter
- supplies
- driving power
- output amplification
- 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
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims 3
- 230000003321 amplification Effects 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Stroboscope Apparatuses (AREA)
- Transmitters (AREA)
Description
第１図は本考案実施例の送信機の概略構成を示
す回路図、第２図は本考案の他の実施例の送信機
の要部の概略構成を示す回路図、第３図及び第５
図はコンデンサの静電容量を説明するための図、
第４図はコンデンサにおける条件を示す図、第６
図はＤＣ−ＤＣコンバータの例を示す回路図、第
７図はコンデンサの充電時間を説明するための図
、第８図は従来の送信機の概略構成を示す回路図
である。
１０……前段回路、２０……切換スイツチ、３
０……パワーアンプ、４０……アンテナ、５０…
…ＤＣ／ＤＣコンバータ、６０……定電圧回路、
７１〜７３，７８……コンパレータ、７９……切
換選択スイツチ、８０……コンデンサ。
FIG. 1 is a circuit diagram showing a schematic configuration of a transmitter according to an embodiment of the present invention, FIG. 2 is a circuit diagram showing a schematic configuration of main parts of a transmitter according to another embodiment of the present invention, and FIGS.
The figure is a diagram to explain the capacitance of a capacitor.
Figure 4 is a diagram showing the conditions for the capacitor, Figure 6
The figure is a circuit diagram showing an example of a DC-DC converter, FIG. 7 is a diagram for explaining the charging time of a capacitor, and FIG. 8 is a circuit diagram showing a schematic configuration of a conventional transmitter. 10... Pre-stage circuit, 20... Changeover switch, 3
0...Power amplifier, 40...Antenna, 50...
...DC/DC converter, 60...constant voltage circuit,
71 to 73, 78... Comparator, 79... Changeover selection switch, 80... Capacitor.
Claims (1)
を通じて送信信号を供給する前段回路と、上記出
力増幅段に定電圧回路を介して駆動電源を供給す
るコンデンサと、上記コンデンサに充電電流を供
給する電源装置とを有する送信機であつて、 互いに異なる複数の基準電圧の一つを送信デー
タ長に応じて切換選択し、該選択された基準電圧
と上記コンデンサの端子電圧との比較結果に応じ
て送信のための駆動電源供給を行うようにしたこ
とを特徴とする送信機。[Claim for Utility Model Registration] A pre-stage circuit that supplies a transmission signal through a signal line to an output amplification stage connected to an antenna, a capacitor that supplies driving power to the output amplification stage via a constant voltage circuit, and the capacitor. and a power supply device that supplies a charging current to the transmitter, the transmitter is configured to switch and select one of a plurality of mutually different reference voltages according to the transmission data length, and to connect the selected reference voltage to the terminal voltage of the capacitor. A transmitter characterized by supplying driving power for transmission according to the comparison result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7969490U JPH0438143U (en) | 1990-07-30 | 1990-07-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7969490U JPH0438143U (en) | 1990-07-30 | 1990-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0438143U true JPH0438143U (en) | 1992-03-31 |
Family
ID=31624083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7969490U Pending JPH0438143U (en) | 1990-07-30 | 1990-07-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0438143U (en) |
-
1990
- 1990-07-30 JP JP7969490U patent/JPH0438143U/ja active Pending
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