CN207706169U - A kind of antenna tuner detection electrifying device - Google Patents
A kind of antenna tuner detection electrifying device Download PDFInfo
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- CN207706169U CN207706169U CN201721902577.7U CN201721902577U CN207706169U CN 207706169 U CN207706169 U CN 207706169U CN 201721902577 U CN201721902577 U CN 201721902577U CN 207706169 U CN207706169 U CN 207706169U
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Abstract
The utility model belongs to short wave communication equipment application technical field, discloses a kind of antenna tuner detection electrifying device, and device includes：Window voltage comparing unit, detection control unit, powers on switch unit and day tune power supply unit at low current detection unit；The signal output end of window voltage comparing unit is connect with the first signal input part being arranged in detection control unit, the signal output end of low current comparing unit is connect with the second signal input terminal being arranged in detection control unit, the signal output end of detection control unit is connect with the control signal input for powering on switch unit, it adjusts the voltage output end of power supply unit to be connect with the voltage input end for powering on switch unit, the voltage input end of the voltage output end and antenna tuner that power on switch unit connects, it can effectively realize day tune function of supplying power, meet security requirement again.
Description
Technical field
The utility model belongs to short wave communication equipment application technical field more particularly to a kind of detection of antenna tuner powers on
Device.
Background technology
Short-wave radio set frequency range is wide, in order to launch energy with maximum effect by antenna, needs to send out in radio station
Attaching antenna tuner between machine and antenna (hereinafter referred to as day tune) is penetrated to realize impedance matching.It adjusts generally use 24V power supplies,
Additional occupancy resource is needed using external power supply power supply, it is common practice that straight by shared radio frequency output interface by short-wave radio set
Logical power supply, but such circuit has interface 24V electricity often in situation in actual use, when same day tune disconnects interface it is exposed
Outside, it be easy to cause security risk.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of antenna tuners to detect electrifying device, pass through
The connection status of day tune is judged to complete the switching of day tune power supply, and when day tune connects, 24V power supplies when day tune disconnects, cut off 24V
Power supply, can effectively realize day tune function of supplying power and security requirement.
In order to achieve the above objectives, the utility model adopts the following technical solution is achieved.
A kind of antenna tuner detection electrifying device, described device include：
Window voltage comparing unit, detection control unit, powers on switch unit and the power supply of day tune at low current detection unit
Unit；
The signal output end of the window voltage comparing unit and the first signal being arranged in the detection control unit
Input terminal connects, the signal output end of the low current comparing unit and the second signal being arranged in the detection control unit
Input terminal connects, and the signal output end of the detection control unit connects with the control signal input for powering on switch unit
It connects, the voltage output end of the day tune power supply unit is connect with the voltage input end for powering on switch unit, the upper cutting
The voltage output end for changing unit is connect with the voltage input end of the antenna tuner.
It the characteristics of technical solutions of the utility model and is further improved to：
(1) the window voltage comparing unit, the impedance for detecting antenna tuner, to obtain the antenna tuning
The corresponding day tune voltage of impedance of device；And when the day tune voltage is in predetermined voltage range, the window voltage is more single
Member output high level 1, when the day tune voltage is not in the predetermined voltage range, the window voltage comparing unit output
Low level 0；
The low current detection unit, for detecting the day tune electric current by antenna tuner；And work as the day tune electric current
When less than or equal to predetermined current threshold, the low current detection unit exports high level 1, when the day tune electric current is more than described
When predetermined current threshold, the low current detection unit exports low level 0；
The detection control unit, the level state for being exported according to the window voltage comparing unit and the low electricity
The level state of detection unit output is flowed, the state of switch unit, the state packet for powering on switch unit are powered on described in control
Contain：It connects the voltage output end of the day tune power supply unit and the voltage input end of the antenna tuner, disconnect the day tune
The voltage input end of the voltage output end of power supply unit and the antenna tuner keeps current state.
(2) when the day tune voltage is in predetermined voltage range, and the window voltage comparing unit exports high level 1,
The voltage input end of the output end for indicating the day tune power supply unit and the antenna tuner is connection status but does not complete confession
Electricity；
When the day tune voltage is not in the predetermined voltage range, the window voltage comparing unit exports low level 0
When, indicate that the voltage input end of the voltage output end of the day tune power supply unit and the antenna tuner is connection status and
Power supply is completed, or indicates that the voltage output end of the day tune power supply unit and the voltage input end of the antenna tuner are disconnected
Open state；
When the day tune electric current is less than or equal to predetermined current threshold, and the low current detection unit exports high level 1,
The voltage input end of the voltage output end for indicating the day tune power supply unit and the antenna tuner is off-state, Huo Zhebiao
The voltage input end of the voltage output end for showing the day tune power supply unit and the antenna tuner is connection status but does not complete
Power supply；
When the day tune electric current is more than the predetermined current threshold, and the low current detection unit exports low level 0, table
Show that the voltage input end of the day tune power supply unit and the antenna tuner is connection status and power supply is completed.
(3) detection control unit is used to be exported according to the window voltage comparing unit level state and described low
The level state of current detecting unit output, the state of switch unit is powered on described in control, is specifically included：
When the window voltage comparing unit exports high level 1, and the low current detection unit exports high level 1, institute
It states and powers on switch unit described in detection control unit control and connect the voltage output end of the day tune power supply unit and the antenna
It the voltage input end of tuner but does not power；
When the window voltage comparing unit exports high level 1, and the low current detection unit exports low level 0, institute
It states and powers on switch unit described in detection control unit control and connect the voltage output end of the day tune power supply unit and the antenna
The voltage input end of tuner simultaneously is completed to power；
When the window voltage comparing unit exports low level 0, and the low current detection unit exports low level 0, institute
It states and powers on switch unit holding current state described in detection control unit control；
When the window voltage comparing unit exports low level 0, and the low current detection unit exports high level 1, institute
It states and powers on switch unit described in detection control unit control and disconnect the voltage output end of the day tune power supply unit and the antenna
The voltage input end of tuner.
Technical solutions of the utility model are directly exported from radio frequency delivery outlet with existing compared with 24V electricity completes the power supply of day tune, are adopted
It adjusts detection electrification circuit to can effectively avoid the exposed security risks of 24V with this day, and efficiently accomplishes day tune power supply task.Simultaneously should
It adjusts detection electrification circuit to establish one's own system, and facilitates modularization, has simple circuit, dependable performance, integration degree height and is easy to
The characteristics of debugging.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram that a kind of antenna tuner that the utility model embodiment provides detects electrifying device.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The utility model embodiment provides a kind of antenna tuner detection electrifying device, as shown in Figure 1, described device packet
It includes：Window voltage comparing unit, detection control unit, powers on switch unit and day tune power supply unit at low current detection unit；
The signal output end of the window voltage comparing unit and the first signal being arranged in the detection control unit
Input terminal connects, the signal output end of the low current comparing unit and the second signal being arranged in the detection control unit
Input terminal connects, and the signal output end of the detection control unit connects with the control signal input for powering on switch unit
It connects, the voltage output end of the day tune power supply unit is connect with the voltage input end for powering on switch unit, the upper cutting
The voltage output end for changing unit is connect with the voltage input end of the antenna tuner.
Wherein, the window voltage comparing unit, the impedance for detecting antenna tuner, to obtain the antenna tune
The corresponding day tune voltage of impedance of humorous device；And when the day tune voltage is in predetermined voltage range, the window voltage compares
Unit exports high level 1, and when the day tune voltage is not in the predetermined voltage range, the window voltage comparing unit is defeated
Go out low level 0；
The low current detection unit, for detecting the day tune electric current by antenna tuner；And work as the day tune electric current
When less than or equal to predetermined current threshold, the low current detection unit exports high level 1, when the day tune electric current is more than described
When predetermined current threshold, the low current detection unit exports low level 0；
The detection control unit, the level state for being exported according to the window voltage comparing unit and the low electricity
The level state of detection unit output is flowed, the state of switch unit, the state packet for powering on switch unit are powered on described in control
Contain：It connects the voltage output end of the day tune power supply unit and the voltage input end of the antenna tuner, disconnect the day tune
The voltage input end of the voltage output end of power supply unit and the antenna tuner keeps current state.
Specifically, when the day tune voltage is in predetermined voltage range, the window voltage comparing unit exports high level 1
When, the voltage input end of the output end and the antenna tuner that indicate the day tune power supply unit is connection status but does not complete
Power supply；
When the day tune voltage is not in the predetermined voltage range, the window voltage comparing unit exports low level 0
When, indicate that the voltage input end of the voltage output end of the day tune power supply unit and the antenna tuner is connection status and
Power supply is completed, or indicates that the voltage output end of the day tune power supply unit and the voltage input end of the antenna tuner are disconnected
Open state；
When the day tune electric current is less than or equal to predetermined current threshold, and the low current detection unit exports high level 1,
The voltage input end of the voltage output end for indicating the day tune power supply unit and the antenna tuner is off-state, Huo Zhebiao
The voltage input end of the voltage output end for showing the day tune power supply unit and the antenna tuner is connection status but does not complete
Power supply；
When the day tune electric current is more than the predetermined current threshold, and the low current detection unit exports low level 0, table
Show that the voltage input end of the day tune power supply unit and the antenna tuner is connection status and power supply is completed.
Further, the level state that the detection control unit is used to export according to the window voltage comparing unit with
The level state of low current detection unit output powers on the state of switch unit described in control, specifically includes：
When the window voltage comparing unit exports high level 1, and the low current detection unit exports high level 1, institute
It states and powers on switch unit described in detection control unit control and connect the voltage output end of the day tune power supply unit and the antenna
It the voltage input end of tuner but does not power；
When the window voltage comparing unit exports high level 1, and the low current detection unit exports low level 0, institute
It states and powers on switch unit described in detection control unit control and connect the voltage output end of the day tune power supply unit and the antenna
The voltage input end of tuner simultaneously is completed to power；
When the window voltage comparing unit exports low level 0, and the low current detection unit exports low level 0, institute
It states and powers on switch unit holding current state described in detection control unit control；
When the window voltage comparing unit exports low level 0, and the low current detection unit exports high level 1, institute
It states and powers on switch unit described in detection control unit control and disconnect the voltage output end of the day tune power supply unit and the antenna
The voltage input end of tuner.
In Practical Project realization, the technical thought of the utility model is：Pass through window voltage comparison circuit and low current
Detection inspection circuit completes to judge to detect the connection status of day tune, then by simply logic gates, and output signal controls
Relay completes the handover operation of 24V electricity.
The circuit of the utility model is mainly made of four parts：Low current detection circuit, window voltage comparison circuit, detection
Control circuit, upper electrical switching circuit.
A) low current detection circuit judges day tune access state, the access of same day tune by detecting the weak current of delivery outlet
And after completing 24V power supplies, output low level is 0；When it adjusts disconnection or access but unfinished 24V to power on, output level 1.
B) window voltage comparison circuit judges day tune state, the access of same day tune but unfinished 24V by window comparator
When output, its own impedance participates in partial pressure, and detection voltage is caused to fall into window ranges 0.64V-2.6V, and output high level is 1；When
It, which is adjusted, disconnects or accesses and complete 24V after the power is turned on, and voltage is fallen outside 0.64V-2.6V ranges, and it is 0 to export.
C) output level status of the control circuit by low current detection circuit and window voltage comparison circuit are detected, are completed
Logic judgment, and output level completes operation to control upper electrical switching circuit.If low current detection output is A, window voltage ratio
It is B compared with circuit output,
It is C to detect control circuit output, and truth table 1 is as follows：
| A | B | C |
| 0 | 0 | State is constant |
| 0 | 1 | 1 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |
D) level that electrical switching circuit is brought according to detection control circuit on completes the switching of 24V electricity using relay,
When detection control circuit brings high level 1, driving relay is switched to 24V, realizes powering on for day tune, detects control circuit
When bringing low level 0, the actuating of relay disconnects 24V power supplies.
E) when same day tune is off, low current detection circuit can't detect electric current, and it is high by 1 to export, and partial pressure enters
The voltage of window comparator exports not in the window ranges of 0.64V-2.6V as low level 0, and detection control circuit passes through logic
Judge, it is 0 to export, and relay is failure to actuate, and 24V is not exported.
F) same day adjusts access and 24V when not turning on state, and low current detection circuit detects electric current, but electric current is too small, defeated
It is still high level 1 to go out, and window voltage comparison circuit is divided because day tune accesses, and into window voltage, it is high by 1 to export, detection control
Circuit output processed is high by 1, and driving relay completes switching, 24V outputs.
G) when the same day adjusts access and 24V to be just connected, low current detection circuit detects electric current, exports as low level 0, window
Voltage comparator circuit drops out window, and output should be 0, and level from high to low, causes output high level 1 that can maintain a period of time,
Control circuit output not yet 1 is detected, 24V outputs are kept.It is 0 to stablize output when window voltage comparison circuit, detects control circuit
Output state is constant, is still high level 1, and 24V stablizes output, day tune steady operation.
H) when the same day adjusts disconnection, supply access no current, the rapid overturning of low current detection circuit output is high level 1, is examined
Voltage is surveyed not in window ranges, the output of window voltage comparison circuit is low level 0, and detection control circuit output is low level 0, after
Electric appliance switches, and 24V is disconnected.
I) pass through actual verification, which can efficiently accomplish day tune detection and power on task, when day tune disconnects, no 24V outputs,
When it adjusts connection, 24V stablizes output.
Technical solutions of the utility model are compared with directly exporting 24V electricity from radio frequency delivery outlet and completing the power supply of day tune, using this
It adjusts detection electrification circuit to can effectively avoid the exposed security risks of 24V, and efficiently accomplishes day tune power supply task.The day tune simultaneously
Detection electrification circuit establishes one's own system, and facilitates modularization, has simple circuit, dependable performance, integration degree height and is easy to debug
The characteristics of.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in computer read/write memory medium, which exists
When execution, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes：ROM, RAM, magnetic disc or CD
Etc. the various media that can store program code.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Claims (4)
1. a kind of antenna tuner detects electrifying device, which is characterized in that described device includes：
Window voltage comparing unit, detection control unit, powers on switch unit and day tune power supply list at low current detection unit
Member；
The signal output end of the window voltage comparing unit and the first signal being arranged in the detection control unit input
End connection, the signal output end of the low current comparing unit and the second signal being arranged in the detection control unit input
End connection, the signal output end of the detection control unit are connect with the control signal input for powering on switch unit, institute
The voltage output end for stating day tune power supply unit is connect with the voltage input end for powering on switch unit, described to power on switch unit
Voltage output end connect with the voltage input end of the antenna tuner.
2. a kind of antenna tuner according to claim 1 detects electrifying device, which is characterized in that
The window voltage comparing unit, the impedance for detecting antenna tuner, to obtain the resistance of the antenna tuner
Resist corresponding day tune voltage；And when the day tune voltage is in predetermined voltage range, the window voltage comparing unit output
High level 1, when the day tune voltage is not in the predetermined voltage range, the window voltage comparing unit exports low level
0；
The low current detection unit, for detecting the day tune electric current by antenna tuner；And when the day tune electric current is less than
Or when equal to predetermined current threshold, the low current detection unit exports high level 1, when the day tune electric current is more than described preset
When current threshold, the low current detection unit exports low level 0；
The detection control unit, level state and the low current for being exported according to the window voltage comparing unit are examined
The level state of unit output is surveyed, the state of switch unit is powered on described in control, the state for powering on switch unit includes：It connects
Lead to the voltage output end of the day tune power supply unit and the voltage input end of the antenna tuner, disconnect the day tune power supply list
The voltage output end of member and the voltage input end of the antenna tuner, holding current state.
3. a kind of antenna tuner according to claim 2 detects electrifying device, which is characterized in that
When the day tune voltage is in predetermined voltage range, and the window voltage comparing unit exports high level 1, described in expression
It adjusts the output end of power supply unit to be connection status with the voltage input end of the antenna tuner but do not complete power supply；
When the day tune voltage is not in the predetermined voltage range, and the window voltage comparing unit exports low level 0, table
The voltage input end of the voltage output end for showing the day tune power supply unit and the antenna tuner is connection status and is completed
Power supply, or indicate that the voltage output end of the day tune power supply unit and the voltage input end of the antenna tuner are to disconnect shape
State；
When the day tune electric current is less than or equal to predetermined current threshold, and the low current detection unit exports high level 1, indicate
The voltage output end of the day tune power supply unit is off-state with the voltage input end of the antenna tuner, or indicates institute
The voltage input end of the voltage output end and the antenna tuner of stating day tune power supply unit is connection status but does not complete power supply；
When the day tune electric current is more than the predetermined current threshold, and the low current detection unit exports low level 0, institute is indicated
The voltage input end for stating day tune power supply unit and the antenna tuner is connection status and power supply is completed.
4. a kind of antenna tuner according to claim 2 detects electrifying device, which is characterized in that the detection control is single
The level shape of level state and low current detection unit output of the member for being exported according to the window voltage comparing unit
State powers on the state of switch unit described in control, specifically includes：
When the window voltage comparing unit exports high level 1, and the low current detection unit exports high level 1, the inspection
Switch unit, which is powered on, described in survey control unit control connects the voltage output end of the day tune power supply unit and the antenna tuning
It the voltage input end of device but does not power；
When the window voltage comparing unit exports high level 1, and the low current detection unit exports low level 0, the inspection
Switch unit, which is powered on, described in survey control unit control connects the voltage output end of the day tune power supply unit and the antenna tuning
The voltage input end of device simultaneously is completed to power；
When the window voltage comparing unit exports low level 0, and the low current detection unit exports low level 0, the inspection
It surveys and powers on switch unit holding current state described in control unit control；
When the window voltage comparing unit exports low level 0, and the low current detection unit exports high level 1, the inspection
Switch unit, which is powered on, described in survey control unit control disconnects the voltage output end of the day tune power supply unit and the antenna tuning
The voltage input end of device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721902577.7U CN207706169U (en) | 2017-12-29 | 2017-12-29 | A kind of antenna tuner detection electrifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721902577.7U CN207706169U (en) | 2017-12-29 | 2017-12-29 | A kind of antenna tuner detection electrifying device |
Publications (1)
| Publication Number | Publication Date |
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| CN207706169U true CN207706169U (en) | 2018-08-07 |
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ID=63030359
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721902577.7U Active CN207706169U (en) | 2017-12-29 | 2017-12-29 | A kind of antenna tuner detection electrifying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947813A (en) * | 2017-12-29 | 2018-04-20 | 陕西烽火电子股份有限公司 | A kind of antenna tuner detects electrifying device |
-
2017
- 2017-12-29 CN CN201721902577.7U patent/CN207706169U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947813A (en) * | 2017-12-29 | 2018-04-20 | 陕西烽火电子股份有限公司 | A kind of antenna tuner detects electrifying device |
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