JPH0427635U - - Google Patents
Info
- Publication number
- JPH0427635U JPH0427635U JP6818890U JP6818890U JPH0427635U JP H0427635 U JPH0427635 U JP H0427635U JP 6818890 U JP6818890 U JP 6818890U JP 6818890 U JP6818890 U JP 6818890U JP H0427635 U JPH0427635 U JP H0427635U
- Authority
- JP
- Japan
- Prior art keywords
- bias voltage
- working
- standby
- transmitter
- diode
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
Landscapes
- Transmitters (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Description
第１図は、本考案の第１実施例に係る現用・予
備送信切り替え回路の構成を示す回路図、第２図
は、この実施例の動作を示すタイミングチヤート
図、第３図は、本考案の第２実施例に係る現用・
予備送信切り替え回路の構成を示す回路図、第４
図は、この実施例の動作を示す通過損失及び出力
位相図、第５図は、従来における現用・予備送信
切り替え回路の構成を示す概要図、第６図は、こ
の従来例における位相差吸収を示す図であつて、
第６図ａは切り替え前の位相関係を示す図、第６
図ｂは切り替え直後の位相関係を示す図、第６図
ｃは位相引き込み後の位相関係を示す図、第７図
は、この従来例における位相引き込みの高速化の
制限を示す図である。
１０……Ｔ型ピンダイオードスイツチ（ＴＳＰ
Ｄ）、１２……ＴＳＰＤ駆動回路、１４……現用
送信機、１６……予備送信機、２０……現用系ダ
イオード、２２……予備系ダイオード、４２，４
６……デイレイ回路、４４，４８……ラグフイル
タ、５２，５４……アツプ／ダウンカウンタ、５
６，５８……ＲＯＭ、６０，６２……Ｄ／Ａカウ
ンタ。
FIG. 1 is a circuit diagram showing the configuration of the active/standby transmission switching circuit according to the first embodiment of the present invention, FIG. 2 is a timing chart showing the operation of this embodiment, and FIG. 3 is the circuit diagram of the present invention. Current use according to the second embodiment of
Circuit diagram showing the configuration of the preliminary transmission switching circuit, No. 4
The figure is a passage loss and output phase diagram showing the operation of this embodiment, FIG. 5 is a schematic diagram showing the configuration of a conventional working/standby transmission switching circuit, and FIG. 6 is a diagram showing the phase difference absorption in this conventional example. A diagram showing
Figure 6a is a diagram showing the phase relationship before switching;
FIG. 6B is a diagram showing the phase relationship immediately after switching, FIG. 6C is a diagram showing the phase relationship after phase pull-in, and FIG. 7 is a diagram showing limitations on speeding up phase pull-in in this conventional example. 10...T type pin diode switch (TSP
D), 12... TSPD drive circuit, 14... Working transmitter, 16... Standby transmitter, 20... Working system diode, 22... Standby system diode, 42,4
6... Delay circuit, 44, 48... Lag filter, 52, 54... Up/down counter, 5
6, 58...ROM, 60, 62...D/A counter.
Claims (1)
現用送信機の出力信号を出力する現用系ダイオー
ド及び予備系バイアス電圧の印加に応じてオンと
なり予備送信機の出力信号を出力する予備系ダイ
オードを含むスイツチと、切り替え信号が現用送
信機を示す値である時には現用系バイアス電圧を
、予備系送信機を示す値である時には予備系バイ
アス電圧を、スイツチに供給する駆動回路と、を
備える現用・予備送信切り替え回路において、 駆動回路が、 切り替え信号の値が変化したときに、スイツチ
に現用系バイアス電圧及び予備系バイアス電圧が
同時に供給される同時オン時点が存在するよう、
現用系バイアス電圧及び予備系バイアス電圧を緩
行立ち上げ・立ち下げさせる手段を有することを
特徴とする現用・予備送信切り替え回路。[Claim for Utility Model Registration] A working system diode that turns on in response to the application of a working system bias voltage and outputs the output signal of the working transmitter, and a working system diode that turns on in response to the application of the standby system bias voltage and outputs the output signal of the standby transmitter. A switch including a standby diode to output, and a drive circuit that supplies a working bias voltage to the switch when the switching signal has a value indicating a working transmitter, and a standby bias voltage when the switching signal has a value indicating a protecting transmitter. In the active/protection transmission switching circuit, the drive circuit is configured such that when the value of the switching signal changes, there is a simultaneous ON point where the active system bias voltage and the protection system bias voltage are simultaneously supplied to the switch.
A working/standby transmission switching circuit characterized by having means for slowly raising and lowering a working system bias voltage and a standby system bias voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990068188U JPH0638505Y2 (en) | 1990-06-26 | 1990-06-26 | Working / standby transmission switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990068188U JPH0638505Y2 (en) | 1990-06-26 | 1990-06-26 | Working / standby transmission switching circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0427635U true JPH0427635U (en) | 1992-03-05 |
| JPH0638505Y2 JPH0638505Y2 (en) | 1994-10-05 |
Family
ID=31602410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990068188U Expired - Lifetime JPH0638505Y2 (en) | 1990-06-26 | 1990-06-26 | Working / standby transmission switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638505Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5271103A (en) * | 1975-12-10 | 1977-06-14 | Nec Corp | Changeover device without cutoff of radiotelegraphic apparatus |
-
1990
- 1990-06-26 JP JP1990068188U patent/JPH0638505Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5271103A (en) * | 1975-12-10 | 1977-06-14 | Nec Corp | Changeover device without cutoff of radiotelegraphic apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0638505Y2 (en) | 1994-10-05 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |