JPH0246420U - - Google Patents
Info
- Publication number
- JPH0246420U JPH0246420U JP12410188U JP12410188U JPH0246420U JP H0246420 U JPH0246420 U JP H0246420U JP 12410188 U JP12410188 U JP 12410188U JP 12410188 U JP12410188 U JP 12410188U JP H0246420 U JPH0246420 U JP H0246420U
- Authority
- JP
- Japan
- Prior art keywords
- switch means
- turning
- amplifier
- high frequency
- frequency power
- 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 4
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Amplifiers (AREA)
Description
第１図はこの考案の一実施例の電気的構成を示
す回路図、第２図は従来のコードレス電話の主要
部の電気的構成を示すブロツク図、第３図は第２
図の一部である高周波電力増幅器の電気的構成を
示す回路図である。
Ｔｉ…入力端子（信号入力端）、Ｔｂ…電源端
子（駆動電力供給端）、２２…ダイオード、２８
…トランジスタ、２９…コンデンサ、３０…抵抗
（２８，２９および３０は第１のスイツチ手段）
、３１…抵抗、３２…トランジスタ、３３…抵抗
（３１，３２および３３は第２のスイツチ手段）
。
FIG. 1 is a circuit diagram showing the electrical configuration of an embodiment of this invention, FIG. 2 is a block diagram showing the electrical configuration of the main parts of a conventional cordless telephone, and FIG.
FIG. 2 is a circuit diagram showing an electrical configuration of a high-frequency power amplifier that is a part of the diagram. Ti...Input terminal (signal input terminal), Tb...Power supply terminal (drive power supply terminal), 22...Diode, 28
...Transistor, 29...Capacitor, 30...Resistor (28, 29 and 30 are first switch means)
, 31...Resistor, 32...Transistor, 33...Resistor (31, 32 and 33 are second switch means)
.
Claims (1)
の間に介挿された第１のスイツチ手段と、前記高
周波電力増幅器の駆動電力供給端に直列に介装さ
れた第２のスイツチ手段とを備え、通話時には前
記第１のスイツチ手段をオフに切換えるとともに
前記第２のスイツチ手段をオンに切換え、待機時
には前記第１のスイツチ手段をオンに切換えると
ともに前記第２のスイツチ手段をオフに切換える
高周波電力増幅器において、前記信号入力端に直
列にダイオードを介挿し、該ダイオードが前記第
１のスイツチ手段のオン動作およびオフ動作に連
動してそれぞれオフ状態およびオン状態に切換え
られることを特徴とする高周波電力増幅器。 A first switch means interposed between a signal input end and a reference potential end of a high frequency power amplifier, and a second switch means interposed in series with a drive power supply end of the high frequency power amplifier. , high frequency power for turning off the first switch means and turning on the second switch means during a call, and turning on the first switch means and turning off the second switch means during standby; In the amplifier, a diode is inserted in series to the signal input terminal, and the diode is switched to an OFF state and an ON state in conjunction with the ON operation and OFF operation of the first switching means, respectively. amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12410188U JPH0246420U (en) | 1988-09-22 | 1988-09-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12410188U JPH0246420U (en) | 1988-09-22 | 1988-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0246420U true JPH0246420U (en) | 1990-03-29 |
Family
ID=31373543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12410188U Pending JPH0246420U (en) | 1988-09-22 | 1988-09-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0246420U (en) |
-
1988
- 1988-09-22 JP JP12410188U patent/JPH0246420U/ja active Pending
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