JPH0328835U - - Google Patents
Info
- Publication number
- JPH0328835U JPH0328835U JP8969889U JP8969889U JPH0328835U JP H0328835 U JPH0328835 U JP H0328835U JP 8969889 U JP8969889 U JP 8969889U JP 8969889 U JP8969889 U JP 8969889U JP H0328835 U JPH0328835 U JP H0328835U
- Authority
- JP
- Japan
- Prior art keywords
- bias power
- supply
- circuit
- power supply
- input signal
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 230000001934 delay Effects 0.000 claims 1
- 230000010355 oscillation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Transmitters (AREA)
Description
第１図は本考案の一実施例の構成図、第２図は
第１図の実施例の動作を説明するためのタイムチ
ヤートである。
１……低周波増幅器、２……遅延回路、３……
平衡変調回路、４……中間搬送波発振回路、５…
…単側波帯用ろ波器、６……周波数混合器、７…
…局部発振回路、８……電力増幅回路、９……信
号検知回路、１０……バイアス電源回路、１１…
…空中線、１２……マイクロフオン、１３……バ
イアス電源制御スイツチ回路。
FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a time chart for explaining the operation of the embodiment of FIG. 1...Low frequency amplifier, 2...Delay circuit, 3...
Balanced modulation circuit, 4... Intermediate carrier oscillation circuit, 5...
...Single sideband filter, 6...Frequency mixer, 7...
... Local oscillation circuit, 8 ... Power amplifier circuit, 9 ... Signal detection circuit, 10 ... Bias power supply circuit, 11 ...
...Antenna, 12...Microphone, 13...Bias power supply control switch circuit.
Claims (1)
号の有る場合のみＳＳＢ送信機の電力増幅回路に
対するバイアス電源を供給するように制御するバ
イアス電源制御信号を出力する信号検知回路と、
前記バイアス電源制御信号を受けて前記バイアス
電源の供給をオンとするようにバイアス電源の供
給を切り替えるバイアス電源制御スイツチ回路と
、前記バイアス電源の供給オンに必要な時間だけ
入力信号を遅延する遅延回路とを備えて成ること
を特徴とするＳＳＢ送信機のバイアス電源制御回
路。 a signal detection circuit that detects the presence or absence of an input signal to the SSB transmitter and outputs a bias power control signal that controls the supply of bias power to the power amplifier circuit of the SSB transmitter only when the input signal is present;
a bias power supply control switch circuit that switches the supply of bias power so as to turn on the supply of bias power in response to the bias power supply control signal; and a delay circuit that delays the input signal by the time necessary to turn on the supply of the bias power supply. A bias power supply control circuit for an SSB transmitter, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8969889U JPH0328835U (en) | 1989-07-28 | 1989-07-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8969889U JPH0328835U (en) | 1989-07-28 | 1989-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0328835U true JPH0328835U (en) | 1991-03-22 |
Family
ID=31639267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8969889U Pending JPH0328835U (en) | 1989-07-28 | 1989-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0328835U (en) |
-
1989
- 1989-07-28 JP JP8969889U patent/JPH0328835U/ja active Pending
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