CN209545599U - A kind of RF switch switching device - Google Patents
A kind of RF switch switching device Download PDFInfo
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- CN209545599U CN209545599U CN201920308379.0U CN201920308379U CN209545599U CN 209545599 U CN209545599 U CN 209545599U CN 201920308379 U CN201920308379 U CN 201920308379U CN 209545599 U CN209545599 U CN 209545599U
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Abstract
The utility model provides a kind of RF switch switching device, including power module, control module, switch selecting module and RF switch group；Control module includes governor circuit, interface circuit, display circuit, host computer and manual switching key, and switch selecting module includes optical couple isolation drive circuit, and RF switch group includes RF switch；Power module and governor circuit, optical couple isolation drive circuit is connected with RF switch, the input port of governor circuit and optical couple isolation drive circuit, interface circuit, display circuit and manual switching are by key connection, interface circuit is connected to host computer, output radio frequency mouth and input radio frequency mouth are equipped in RF switch, the output port of optical couple isolation drive circuit is connected to the input radio frequency mouth of RF switch respectively, it is attached to form the plural channel between input radio frequency mouth and output radio frequency mouth between RF switch, manual switching key and input radio frequency mouth, export the corresponding configuration of radio frequency mouth.The utility model efficient calibration, applicable frequency range are wide.
Description
Technical field
The utility model relates to technology for radio frequency fields, and in particular to it is a kind of for wide-band measurement RF switch cut
Changing device.
Background technique
Requirement with the continuous development and information-based fast development of scientific and technological level, to crystal oscillator frequency accuracy
Higher and higher, which is widely used in all kinds of digital instruments, provides time reference for digital instrument.Such as clock test instrument
Class power instrument is the important instrument of the electric energy meter timing performance for testing in production process, using crystal oscillator as time base
Standard, metering performance directly affect the accuracy of electric energy meter timing, are related to the vital interests of vast power consumer.Therefore, contain
The calibrating of the digital instrument of crystal oscillator, calibration and debugging work load are very big.However, the calibration of crystal oscillator parameter is time-consuming
Considerably long, only one parameter of power on characteristic just needs to expend 7 hours time, according to traditional method primary calibration one, no
Can more simultaneously detected, calibrated, there are great work intensity, time-consuming, working efficiency is low the problems such as.
The country mainly uses two methods to the calibration of crystal oscillator parameter at present: 1, manual calibration: passing through tester
Member one time one is calibrated, the problems such as there are thread-changings often, time-consuming, working efficiency is low；2, it is calibrated using program controlled switch:
This method is high-efficient, but there are following disadvantages: (1) applicable frequency range is low, and the applicable frequency range of main product is DC-100MHz；
(2) performance indicator of RF switch is relatively low, as the following isolation of main product 100MHz is 90dB, switch speed is slow, logical
Road standing-wave ratio height etc.；(3) manual switching function is not provided.
Summary of the invention
The technical problems to be solved in the utility model, is to provide a kind of RF switch switching device, and efficient calibration is applicable in
Frequency range is wide, interchannel Signal segregation degree is high, can manual switching, facilitate communication, be easy to carry.
The utility model is realized in this way:
A kind of RF switch switching device, including a power module, a control module, a switch selecting module and a radio frequency
Switching group；The control module include a governor circuit, an interface circuit, a display circuit, a host computer and it is a plurality of manually
Switching key, the switch selecting module includes a plurality of optical couple isolation drive circuits, and the RF switch group includes a plurality of
RF switch；
The power module is switched with governor circuit, a plurality of optical couple isolation drive circuits and plurality of radio respectively to be connected
Connect, the governor circuit respectively with the input port of a plurality of optical couple isolation drive circuits, interface circuit, display circuit and plural number
By key connection, the interface circuit is connected to host computer for a manual switching, and an output is equipped in a plurality of RF switches and is penetrated
Frequency mouth and a plurality of input radio frequency mouths, the output port of a plurality of optical couple isolation drive circuits are opened with plurality of radio respectively
The corresponding connection of the input radio frequency mouth of pass, and be attached between plurality of radio switch and realize a plurality of input radio frequency mouths and output
Mapping between radio frequency mouth forms a plurality of input radio frequency mouths and exports the plural channel between radio frequency mouth, described to cut manually
The number for changing key is configured with input radio frequency mouth with the number of output radio frequency mouth and identical and one-to-one correspondence.
Further, the control module further includes a plurality of manual switching keys, a plurality of manual switching keys
It is connected to governor circuit, the number of the manual switching key and input radio frequency mouth and the number of output radio frequency mouth and identical.
Further, a plurality of RF switches include that a main hilted broadsword six is thrown RF switch and a plurality of thrown from hilted broadsword six
RF switch, the main hilted broadsword six, which is thrown RF switch and each thrown from hilted broadsword six, is equipped with a common end and six controls on RF switch
End processed, the main hilted broadsword six throw the common end of RF switch as output radio frequency mouth, and the main hilted broadsword six throws the six of RF switch
A control terminal is divided into a plurality of connecting pins and a plurality of fixing ends, wherein the number of the connecting pin with from hilted broadsword six throw radio frequency
It is identical to switch number, the number of the connecting pin and the number of fixing end and be six are each described to throw RF switch from hilted broadsword six
Common end be respectively connected to the connecting pin that main hilted broadsword six throws RF switch, the control that RF switch is thrown from hilted broadsword six
End and main hilted broadsword six throw the fixing end of RF switch as input radio frequency mouth.
Further, a plurality of RF switches are single-pole double throw RF switch, each single-pole double-throw radio frequency
A common end and two control terminals are equipped on switch, two control terminals are divided into a connecting pin and a fixing end, described in first
The common end of single-pole double throw RF switch is as output radio frequency mouth, the common end connection of next single-pole double throw RF switch
The connecting pin of a supreme single-pole double throw RF switch, the fixing end of each single-pole double throw RF switch and last
The connecting pin of a single-pole double throw RF switch is used as input radio frequency mouth.
Further, a plurality of RF switches are single-pole three throw RF switch, each single-pole three throw radio frequency
A common end and three control terminals are equipped on switch, three control terminals are divided into a connecting pin and two fixing ends, described in first
The common end of single-pole three throw RF switch is as output radio frequency mouth, the common end connection of next single-pole three throw RF switch
The connecting pin of a supreme single-pole three throw RF switch, the fixing end of each single-pole three throw RF switch and last
The connecting pin of a single-pole three throw RF switch is used as input radio frequency mouth.
Further, the governor circuit includes a chip U10, a crystal oscillator Y1, a resistance R83, a resistance R84, an electricity
R85, a capacitor C15, a capacitor C16, a capacitor C17, a capacitor C19, a capacitor C20, a capacitor C21 and a capacitor C23 are hindered,
The model STM32F103RBT6 of the chip U10；
The first pin of the chip U10 is connected to power module, the 5th pin of the chip U10 by resistance R83
It is connect respectively with one end of one end of resistance R84, one end of crystal oscillator Y1 and capacitor C16, the 6th pin difference of the chip U10
It is connect with one end of the other end of resistance R84, the other end of crystal oscillator Y1 and capacitor C17, the other end and capacitor of the capacitor C16
The other end of C17 is grounded；The 13rd pin of the chip U10 connects with one end of capacitor C19 and one end of resistance R85 respectively
It connects, the 12nd pin of the chip U10 and the other end of capacitor C19 are grounded, the 18th pin connection of the chip U10
To one end of capacitor C21, the other end of the 19th pin of the chip U10, the other end of capacitor C21 and resistance R85 is connected
To power module, the 31st pin of the chip U10 is connected to one end of capacitor C23, and the 32nd of the chip U10 the
Pin is connected to the other end of capacitor C23, and the 47th pin of the chip U10 is connected to one end of capacitor C20, the core
The 48th pin of piece U10 is connected to the other end of capacitor C20, and the 63rd pin of the chip U10 is connected to capacitor
One end of C15, the 64th pin of the chip U10 and the other end of capacitor C15 are connected to power module；
The 46th pin and the 49th pin of the chip U10 is connected to manual switching key, the chip U10
The 42nd pin and the 43rd pin be connected to interface circuit, the 28th pin of the chip U10, the 29th
Pin, the 30th pin, the 33rd pin, the 34th pin, the 35th pin, the 36th pin, the 37th
Pin, the 38th pin, the 39th pin, the 40th pin, the 41st pin, the 44th pin, the 50th are drawn
Foot, the 51st pin, the 54th pin, the 55th pin, the 56th pin, the 57th pin, second pin,
Each pin in 25th pin and the 45th pin input port with a plurality of optical couple isolation drive circuits respectively
And display circuit connection.
Further, each optical couple isolation drive circuit includes a chip U4, a resistance R9, a resistance R10, an electricity
R11, a resistance R14, a resistance R17, a resistance R20, a resistance R23, a resistance R26, a resistance R29 and a resistance R32 are hindered,
The model TLP521-4 of the chip U4；
The first pin of the chip U4 is connected to one end of resistance R11, and the third pin of the chip U4 is connected to electricity
One end of R17 is hindered, the 5th pin of the chip U4 is connected to one end of resistance R23, the 7th pin connection of the chip U4
To one end of resistance R29, the other end of the resistance R11, the other end of resistance R17, resistance R23 the other end and resistance R29
The other end be connected to power module, the 9th pin of the chip U4 is connected to one end of resistance R32, the chip U4's
11st pin is connected to one end of resistance R26, and the 13rd pin of the chip U4 is connected to one end of resistance R20, described
The 15th pin of chip U4 is connected to one end of resistance R14, the other end, the electricity of the other end of the resistance R32, resistance R26
The other end and the other end of resistance R14 for hindering R20 are grounded, and the tenth pin of the chip U4, the 12nd pin, the 14th are drawn
Foot and the 16th pin are connect with one end of one end of resistance R9 and resistance R10 respectively, the other end and electricity of the resistance R9
The other end of resistance R10 is connected to power module；
Second pin, the 4th pin, the 6th pin and the 8th pin of the chip U4 is respectively connected to main control module
On corresponding pin, the 9th pin, the 11st pin, the 13rd pin and the 15th pin of the chip U4 is respectively connected to penetrate
The correspondence input radio frequency mouth of frequency switch.
Further, the output radio frequency mouth is connected to standard, and the input radio frequency mouth is additionally coupled to corresponding tested
Instrument.
Further, the power module includes a Switching Power Supply and a DC-DC power source conversion device, the Switching Power Supply point
It does not switch and connects with DC-DC power source conversion device, a plurality of optical couple isolation drive circuits and plurality of radio, the DC-DC power source
Converter is connected to governor circuit.
Further, the interface circuit is USB, RS232 or GPIB communication interface.
Further, the display circuit is LED display lamp.
Utility model has the advantages that
1, efficient calibration: the RF switch switching device can realize the selection and switching of multiple signals, it is ensured that more quilts
Test examination instrument is tested simultaneously, compresses free time to greatest extent, effectively improves test efficiency；
2, it is wide to be applicable in frequency range: the RF switch switching device can meet the experimental condition of any frequency point of DC~20GHz, user
The test that different frequent points can be carried out on same time difference channel, extends the operation strategies of the device；
3, interchannel Signal segregation degree is high, and 12GHz or less isolation is 100dB, (12-15) GHz isolation is 80dB；
(15-20) GHz isolation is 70dB；Switch speed is 15ms；Maximum standing-wave ratio is 1.7；
4, manual switching key is provided with also to mention so that the RF switch switching device not only provides automatic test condition
For manual switching function；
5, the RF switch switching device provides the communication interface of USB, RS232 or GPIB, facilitates host computer and master control electricity
Communication between road；
6, easy to carry: the covering device is light-weight, small in size, and testing crew is facilitated to carry out field test.
Detailed description of the invention
The utility model is further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is a kind of overall structure diagram of RF switch switching device of the utility model.
Fig. 2 is the specific internal structure connection figure of governor circuit in the utility model.
Fig. 3 is the specific internal structure connection figure that selecting module is switched in the utility model.
Fig. 4 is the overall structure diagram of embodiment one in the utility model.
Fig. 5 is that the hilted broadsword six of embodiment one in the utility model throws the structural schematic diagram of RF switch.
Fig. 6 is the overall structure diagram of embodiment two in the utility model.
Fig. 7 is that the hilted broadsword six of embodiment two in the utility model throws the structural schematic diagram of RF switch.
Fig. 8 is the overall structure diagram of embodiment three in the utility model.
Fig. 9 is that the hilted broadsword six of embodiment three in the utility model throws the structural schematic diagram of RF switch.
Figure 10 is that radio frequency mouth, input radio frequency mouth, standard and by one of schematic diagram of test examination instrument are exported in the utility model.
Figure 11 is that radio frequency mouth, input radio frequency mouth, standard and by the two of the schematic diagram of test examination instrument are exported in the utility model.
Figure label explanation:
1- power module, 11- Switching Power Supply, 12-DC-DC power adapter, 2- control module, 21- governor circuit, 22-
Interface circuit, 23- host computer, 24- display circuit, 25- manual switching key, 3- switch selecting module, 31- light-coupled isolation driving
Circuit, 4- RF switch group, 41- RF switch, the main hilted broadsword six of 42- throw RF switch, 43- and throw RF switch, 44- from hilted broadsword six
Common end, 45- control terminal, the connecting pin 46-, 47- fixing end, 48- single-pole double throw RF switch, 49- single-pole three throw RF switch,
411- exports radio frequency mouth, 412- input radio frequency mouth, 5- standard, 6- by test examination instrument.
Specific embodiment
The utility model is made combined with specific embodiments below and being further described in detail, but the structure of the utility model
It is not limited in following embodiment.
It please refers to shown in Fig. 1 to Figure 11, a kind of RF switch switching device of the utility model, including a power module 1,
One control module 2, one switchs selecting module 3 and a RF switch group 4；The control module 2 includes that a governor circuit 21, one connects
Mouth circuit 22, a host computer 23, a display circuit 24 and a plurality of manual switching keys 25, the switch selecting module 3 include
A plurality of optical couple isolation drive circuits 31, the RF switch group 4 include plurality of radio switch 41；The interface circuit 22 is
USB, RS232 or GPIB communication interface facilitate the communication of governor circuit 21 Yu host computer 23, and the control signal of host computer 23 is led to
It crosses interface circuit and is transferred to governor circuit 21；The display circuit is LED display lamp, convenient for learning the on or off of RF switch；
The power module 1 is opened with governor circuit 21, a plurality of optical couple isolation drive circuits 31 and plurality of radio respectively
41 connections are closed, specifically, the power module 1 includes a Switching Power Supply 11 and a DC-DC power source conversion device 12, the switch electricity
Source 11 is connect with DC-DC power source conversion device 12, a plurality of optical couple isolation drive circuits 31 and plurality of radio switch 41 respectively, institute
It states DC-DC power source conversion device 12 and is connected to governor circuit 21, the effect of the power module 1 is for governor circuit 21, a plurality of
Optical couple isolation drive circuit 31 and plurality of radio switch 41 are powered；
The governor circuit 21 respectively with the input port of a plurality of optical couple isolation drive circuits 31, interface circuit 22, aobvious
Show that circuit 24 and the connection of a plurality of manual switching keys 25, the interface circuit 22 are connected to host computer 23, it is a plurality of described to penetrate
An output radio frequency mouth 411 and a plurality of input radio frequency mouths 412, a plurality of optical couple isolation drive circuits are equipped in frequency switch 41
The connection corresponding with the input radio frequency mouth 412 of plurality of radio switch 41 respectively of 31 output port, exports radio frequency mouth 411 and input
The front end of the RF switch 41 is arranged in radio frequency mouth 412, and the optical couple isolation drive circuit 31 passes through radio frequency by control line
The input radio frequency mouth 412 of front end is connected to behind the rear end of switch 41；And it is multiple that realization is attached between plurality of radio switch 41
Mapping between several input radio frequency mouths 412 and output radio frequency mouth 411 forms a plurality of input radio frequency mouths 412 and output radio frequency
Plural channel between mouth 411, the output radio frequency mouth 411 are connected to standard 5, and the input radio frequency mouth 412 is also connected with
To corresponding by test examination instrument 6 (digital instrument containing crystal oscillator detects the parameter of crystal oscillator), different channels can be with
Detect it is different by test examination instrument 6, it can be achieved that the selection and switching of multiple signals, guarantee more and tested simultaneously by test examination instrument 6, maximum
Limit compresses free time, effectively improves test efficiency；
The number of the manual switching key 25 and input radio frequency mouth 412 and the number of output radio frequency mouth 411 and it is identical and
Configuration is corresponded, such as: the number of output radio frequency mouth 411 is 1, and the number of input radio frequency mouth 412 is 21, then manual switching key
25 number is 22, and user is manually pressed by output radio frequency mouth 411 and any one input radio frequency mouth 412 simultaneously, passes through master control
The control processing of circuit 21 is so that the channel between the output radio frequency mouth 411 pressed and input radio frequency mouth 412 is opened, to realize
The detection by test examination instrument to connecting in the channel with input radio frequency mouth 412 has hand because being provided with manual switching key 25
Dynamic handoff functionality.
Wherein, the physical circuit internal structure of the governor circuit 21 are as follows:
As shown in Fig. 2, the governor circuit 21 includes a chip U10, a crystal oscillator Y1, a resistance R83, a resistance R84, one
Resistance R85, a capacitor C15, a capacitor C16, a capacitor C17, a capacitor C19, a capacitor C20, a capacitor C21 and a capacitor
C23, the model STM32F103RBT6 of the chip U10；
The first pin of the chip U10 is connected to power module, the 5th pin of the chip U10 by resistance R83
It is connect respectively with one end of one end of resistance R84, one end of crystal oscillator Y1 and capacitor C16, the 6th pin difference of the chip U10
It is connect with one end of the other end of resistance R84, the other end of crystal oscillator Y1 and capacitor C17, the other end and capacitor of the capacitor C16
The other end of C17 is grounded；The 13rd pin of the chip U10 connects with one end of capacitor C19 and one end of resistance R85 respectively
It connects, the 12nd pin of the chip U10 and the other end of capacitor C19 are grounded, the 18th pin connection of the chip U10
To one end of capacitor C21, the other end of the 19th pin of the chip U10, the other end of capacitor C21 and resistance R85 is connected
To power module, the 31st pin of the chip U10 is connected to one end of capacitor C23, and the 32nd of the chip U10 the
Pin is connected to the other end of capacitor C23, and the 47th pin of the chip U10 is connected to one end of capacitor C20, the core
The 48th pin of piece U10 is connected to the other end of capacitor C20, and the 63rd pin of the chip U10 is connected to capacitor
One end of C15, the 64th pin of the chip U10 and the other end of capacitor C15 are connected to power module；
The 46th pin and the 49th pin of the chip U10 is connected to manual switching key, the chip U10
The 42nd pin and the 43rd pin be connected to interface circuit, the 28th pin of the chip U10, the 29th
Pin, the 30th pin, the 33rd pin, the 34th pin, the 35th pin, the 36th pin, the 37th
Pin, the 38th pin, the 39th pin, the 40th pin, the 41st pin, the 44th pin, the 50th are drawn
Foot, the 51st pin, the 54th pin, the 55th pin, the 56th pin, the 57th pin, second pin,
Each pin in 25th pin and the 45th pin input port with a plurality of optical couple isolation drive circuits respectively
And display circuit connection, the same pin colleague control optical couple isolation drive circuit and display circuit, in order to which guarantee is penetrated
Frequency switch general rule lamp is bright, and RF switch closes, and lamp goes out.Described remaining pin of chip U10 is directly hanging or according to the actual situation again
Accordingly connected.
Wherein, the physical circuit internal structure of the switch selecting module 3 are as follows:
As shown in figure 3, the switch selecting module 3 include six optical couple isolation drive circuits (respectively the first optocoupler every
From driving circuit, the second optical couple isolation drive circuit, third optical couple isolation drive circuit, the 4th optical couple isolation drive circuit,
Five optical couple isolation drive circuits, the 6th optical couple isolation drive circuit) 31；
First optical couple isolation drive circuit 31 includes a chip U4, a resistance R9, a resistance R10, a resistance R11, an electricity
Hinder R14, a resistance R17, a resistance R20, a resistance R23, a resistance R26, a resistance R29 and resistance a R32, the chip U4
Model TLP521-4；The first pin of the chip U4 is connected to one end of resistance R11, the third pin of the chip U4
It is connected to one end of resistance R17, the 5th pin of the chip U4 is connected to one end of resistance R23, and the 7th of the chip U4 the
Pin is connected to one end of resistance R29, the other end of the resistance R11, the other end of resistance R17, resistance R23 the other end and
The other end of resistance R29 is connected to power module 1, and the 9th pin of the chip U4 is connected to one end of resistance R32, described
The 11st pin of chip U4 is connected to one end of resistance R26, and the 13rd pin of the chip U4 is connected to the one of resistance R20
End, the 15th pin of the chip U4 are connected to one end of resistance R14, the other end of the resistance R32, resistance R26 it is another
The other end of one end, the other end of resistance R20 and resistance R14 is grounded, the tenth pin of the chip U4, the 12nd pin,
14th pin and the 16th pin are connect with one end of one end of resistance R9 and resistance R10 respectively, and the resistance R9's is another
The other end of one end and resistance R10 are connected to power module 1；
Second optical couple isolation drive circuit 31 includes a chip U5, a resistance R12, a resistance R15, a resistance R18, an electricity
Hinder R21, a resistance R24, a resistance R27, a resistance R30 and resistance a R33, the model TLP521-4 of the chip U5；Institute
The first pin for stating chip U5 is connected to one end of resistance R12, and the third pin of the chip U5 is connected to the one of resistance R18
End, the 5th pin of the chip U5 are connected to one end of resistance R24, and the 7th pin of the chip U5 is connected to resistance R30
One end, the other end of the resistance R12, the other end of resistance R18, the other end of the other end of resistance R24 and resistance R30 are equal
It is connected to power module 1, the 9th pin of the chip U5 is connected to one end of resistance R33, and the 11st of the chip U5 is drawn
Foot is connected to one end of resistance R27, and the 13rd pin of the chip U5 is connected to one end of resistance R21, the chip U5's
15th pin is connected to one end of resistance R15, the other end of the resistance R33, the other end of resistance R27, resistance R21 it is another
The other end of one end and resistance R15 are grounded, the tenth pin, the 12nd pin, the 14th pin and the tenth of the chip U5
Six pins are connect with one end of one end of resistance R9 and resistance R10 respectively；
Third optical couple isolation drive circuit 31 includes a chip U6, a resistance R13, a resistance R16, a resistance R19, an electricity
Hinder R22, a resistance R25, a resistance R28, a resistance R31 and a resistance R34, the model TLP521-4 of the chip U6；Institute
The first pin for stating chip U6 is connected to one end of resistance R13, and the third pin of the chip U6 is connected to the one of resistance R19
End, the 5th pin of the chip U6 are connected to one end of resistance R25, and the 7th pin of the chip U6 is connected to resistance R31
One end, the other end of the resistance R13, the other end of resistance R19, the other end of the other end of resistance R25 and resistance R31 are equal
It is connected to power module 1, the 9th pin of the chip U6 is connected to one end of resistance R34, and the 11st of the chip U6 is drawn
Foot is connected to one end of resistance R28, and the 13rd pin of the chip U6 is connected to one end of resistance R22, the chip U6's
15th pin is connected to one end of resistance R16, the other end of the resistance R34, the other end of resistance R28, resistance R22 it is another
The other end of one end and resistance R16 are grounded, the tenth pin, the 12nd pin, the 14th pin and the tenth of the chip U6
Six pins are connect with one end of one end of resistance R9 and resistance R10 respectively；
4th optical couple isolation drive circuit 31 includes a chip U7, a resistance R35, a resistance R38, a resistance R41, an electricity
Hinder R44, a resistance R47, a resistance R50, a resistance R53 and resistance a R56, the model TLP521-4 of the chip U7；Institute
The first pin for stating chip U7 is connected to one end of resistance R35, and the third pin of the chip U7 is connected to the one of resistance R41
End, the 5th pin of the chip U7 are connected to one end of resistance R47, and the 7th pin of the chip U7 is connected to resistance R53
One end, the other end of the resistance R35, the other end of resistance R41, the other end of the other end of resistance R47 and resistance R53 are equal
It is connected to power module 1, the 9th pin of the chip U7 is connected to one end of resistance R56, and the 11st of the chip U7 is drawn
Foot is connected to one end of resistance R50, and the 13rd pin of the chip U7 is connected to one end of resistance R44, the chip U7's
15th pin is connected to one end of resistance R38, the other end of the resistance R56, the other end of resistance R50, resistance R44 it is another
The other end of one end and resistance R38 are grounded, the tenth pin, the 12nd pin, the 14th pin and the tenth of the chip U7
Six pins are connect with one end of one end of resistance R9 and resistance R10 respectively；
5th optical couple isolation drive circuit 31 includes a chip U8, a resistance R36, a resistance R39, a resistance R42, an electricity
Hinder R45, a resistance R48, a resistance R51, a resistance R54 and resistance a R57, the model TLP521-4 of the chip U8；Institute
The first pin for stating chip U8 is connected to one end of resistance R36, and the third pin of the chip U8 is connected to the one of resistance R42
End, the 5th pin of the chip U8 are connected to one end of resistance R48, and the 7th pin of the chip U8 is connected to resistance R54
One end, the other end of the resistance R36, the other end of resistance R42, the other end of the other end of resistance R48 and resistance R54 are equal
It is connected to power module 1, the 9th pin of the chip U8 is connected to one end of resistance R57, and the 11st of the chip U8 is drawn
Foot is connected to one end of resistance R51, and the 13rd pin of the chip U8 is connected to one end of resistance R45, the chip U8's
15th pin is connected to one end of resistance R39, the other end of the resistance R57, the other end of resistance R51, resistance R45 it is another
The other end of one end and resistance R39 are grounded, the tenth pin, the 12nd pin, the 14th pin and the tenth of the chip U8
Six pins are connect with one end of one end of resistance R9 and resistance R10 respectively；
6th optical couple isolation drive circuit 31 includes a chip U9, a resistance R37, a resistance R40, a resistance R43, an electricity
Hinder R46, a resistance R49, a resistance R52, a resistance R55 and resistance a R58, the model TLP521-4 of the chip U9；Institute
The first pin for stating chip U9 is connected to one end of resistance R37, and the third pin of the chip U9 is connected to the one of resistance R43
End, the 5th pin of the chip U9 are connected to one end of resistance R49, and the 7th pin of the chip U9 is connected to resistance R55
One end, the other end of the resistance R37, the other end of resistance R43, the other end of the other end of resistance R49 and resistance R55 are equal
It is connected to power module 1, the 9th pin of the chip U9 is connected to one end of resistance R58, and the 11st of the chip U9 is drawn
Foot is connected to one end of resistance R52, and the 13rd pin of the chip U9 is connected to one end of resistance R46, the chip U9's
15th pin is connected to one end of resistance R40, the other end of the resistance R58, the other end of resistance R52, resistance R46 it is another
The other end of one end and resistance R40 are grounded, the tenth pin, the 12nd pin, the 14th pin and the tenth of the chip U9
Six pins are connect with one end of one end of resistance R9 and resistance R10 respectively；
Second pin, the 4th pin, of the chip U4, chip U5, chip U6, chip U7, chip U8 and chip U9
Six pins and the 8th pin are respectively connected on the corresponding pin of main control module 21, the chip pin of optical couple isolation drive circuit 31
(number IO_0~IO_21 in number IO_2_0~IO_3_7 corresponding diagram 2 in Fig. 3), wherein chip U4, chip U5, chip U6,
Extra pin is directly hanging in chip U7, chip U8 and chip U9, does not influence testing result；The chip U4 chip U4, core
The 9th pin, the 11st pin, the 13rd pin and the 15th pin of piece U5, chip U6, chip U7, chip U8 and chip U9
Be respectively connected to the correspondence input radio frequency mouth of RF switch, wherein chip U4, chip U5, chip U6, chip U7, chip U8 and
Extra pin is directly hanging in chip U9, does not influence testing result.
In addition, the Switching Power Supply 11, DC-DC power source conversion device 12, interface circuit 22, display circuit 24, manual switching
The specific internal circuit configuration of key 25 is the prior art, it is not specifically described here.
For the structure of RF switch group 4, RF switch, single-pole double throw RF switch can be thrown using a plurality of hilted broadswords six
With the structures such as single-pole three throw RF switch, specifically have:
Embodiment one:
A plurality of RF switches 41 include that a main hilted broadsword six throws RF switch 42 and a plurality of throws radio frequency from hilted broadsword six
Switch 43, the main hilted broadsword six, which is thrown RF switch 42 and each thrown from hilted broadsword six, is equipped with 44 He of a common end on RF switch 43
Six control terminals 45, the main hilted broadsword six throw the common end 44 of RF switch 42 as output radio frequency mouth 411, and the main hilted broadsword six is thrown
Six control terminals 45 of RF switch 42 are divided for a plurality of connecting pins 46 and a plurality of fixing ends 47, wherein the connecting pin 46
Number with throw that 43 numbers of RF switch are identical from hilted broadsword six, the number of the connecting pin 46 and the number of fixing end 47 and be
Six, it is each described to be respectively connected to the connection that main hilted broadsword six throws RF switch 42 from the common end 44 that hilted broadsword six throws RF switch 43
End 46, it is each described to throw the control terminal 45 of RF switch 43 from hilted broadsword six and fixing end 47 that main hilted broadsword six throws RF switch 42 is made
For input radio frequency mouth 412；
RF switch is thrown using four hilted broadswords six in Fig. 5, one of them is that main hilted broadsword six throws RF switch 42, the other three
It is to throw RF switch 43 from hilted broadsword six, then main hilted broadsword six, which is thrown in RF switch 42,3 connecting pin 46 and 3 fixing ends 47, there is 1
A output radio frequency mouth 411 and totally 22,21 input radio frequency mouths 412；Six optical couple isolation drive circuits 31 are used in Fig. 4, each
Optical couple isolation drive circuit 31 has 4 delivery outlets totally 24, in conjunction with Fig. 4 and Fig. 5,4 of the first optical couple isolation drive circuit 31
4 input radio frequency mouths 412 that RF switch 43 is thrown in delivery outlet connection one from hilted broadsword six, the 2 of the second optical couple isolation drive circuit 31
Remaining 2 input radio frequency mouths 412 of RF switch 43, the second optical couple isolation drive circuit are thrown in a delivery outlet connection one from hilted broadsword six
31 remaining 2 delivery outlets connect another 2 input radio frequency mouths 412 that RF switch 43 is thrown from hilted broadsword six, third light-coupled isolation
The 4 input radio frequency mouths 412 that are left of RF switch 43, realization three are thrown in 4 delivery outlets connection one of driving circuit 31 from hilted broadsword six
A optical couple isolation drive circuit 31 controls two and throws RF switch 43 from hilted broadsword six；4 of 4th optical couple isolation drive circuit 31
Delivery outlet connects 4 input radio frequency mouths 412 that RF switch 43 is further thrown from hilted broadsword six, the 5th optical couple isolation drive circuit 31
The 2 input radio frequency mouths 412 that are left of RF switch 43, the 5th light-coupled isolation driving are further thrown in 2 delivery outlet connections from hilted broadsword six
Remaining 2 delivery outlets of circuit 31 connect 2 input radio frequency mouths 412 that main hilted broadsword six throws RF switch 42, the 6th light-coupled isolation
1 delivery outlet of driving circuit 31 connects remaining 1 input radio frequency mouth 412 that main hilted broadsword six throws RF switch 42, the 6th optocoupler
Remaining 3 delivery outlets of isolated drive circuit 31 are directly hanging, and this completes 6 optical couple isolation drive circuits 31 to control
4 hilted broadswords six throw 21 input radio frequency mouths 412 of RF switch, are formed 21 paths.
Embodiment two:
A plurality of RF switches 41 are single-pole double throw RF switch 48, each single-pole double throw RF switch 48
On be equipped with a common end 44 and two control terminals 45, two control terminals 45 are divided for a connecting pin 46 and a fixing end 47, first
It is opened as output radio frequency mouth 411, next single-pole double-throw radio frequency the common end 44 of a single-pole double throw RF switch 48
The common end 44 of pass 48 is connected to the connecting pin 46 of a single-pole double throw RF switch 48, and each single-pole double throw is penetrated
The fixing end 47 of frequency switch 48 and the connecting pin 46 of the last one single-pole double throw RF switch 48 are used as input radio frequency mouth 412；
Nine single-pole double throw RF switch 48 are used in Fig. 7, there is 1 output radio frequency mouth 411 and 10 input radio frequency mouths 412
Totally 11, respectively there is 1 input radio frequency mouth 412 in the first eight single-pole double throw RF switch 48, the last one single-pole double-throw radio frequency is opened
Closing 48 has 2 input radio frequency mouths 412；As shown in fig. 6, using three optical couple isolation drive circuits 31, each light-coupled isolation driving
Circuit 31 has 4 delivery outlets totally 12, and in conjunction with Fig. 6 and Fig. 7,4 delivery outlets of the first optical couple isolation drive circuit 31 connect respectively
Connect 4 input radio frequency mouths 412 of first four single-pole double throw RF switch 48,4 outputs of the second optical couple isolation drive circuit 31
Mouth is separately connected 4 input radio frequency mouths 412 of rear four single-pole double throw RF switch 48, third optical couple isolation drive circuit 31
2 delivery outlets connect 2 input radio frequency mouths 412 of the last one single-pole double throw RF switch 48, third light-coupled isolation driving electricity
Remaining 4 delivery outlets on road 31 are directly hanging, and this completes 3 optical couple isolation drive circuits 31 to control 9 hilted broadswords pair
10 input radio frequency mouths 412 for throwing RF switch, are formed 10 paths.
Embodiment three:
A plurality of RF switches 41 are single-pole three throw RF switch 49, each single-pole three throw RF switch 49
On be equipped with a common end 44 and three control terminals 45, three control terminals 45 are divided to for a connecting pin 46 and two fixing ends 47, first
It is opened as output radio frequency mouth 411, next single-pole three throw radio frequency the common end 44 of a single-pole three throw RF switch 49
The common end 44 of pass 49 is connected to the connecting pin 46 of a single-pole three throw RF switch 49, and each single-pole three throw is penetrated
The fixing end 47 of frequency switch 49 and the connecting pin 46 of the last one single-pole three throw RF switch 49 are used as input radio frequency mouth 412；
Seven single-pole three throw RF switches 49 are used in Fig. 9, there is 1 output radio frequency mouth 411 and 15 input radio frequency mouths 412
Totally 16, respectively there are 2 input radio frequency mouths 412 in the first six single-pole three throw RF switch 49, the last one single-pole three throw radio frequency is opened
Closing 48 has 3 input radio frequency mouths 412；As shown in figure 8, using four optical couple isolation drive circuits 31, each light-coupled isolation driving
Circuit 31 has 4 delivery outlets totally 16, and in conjunction with Fig. 8 and Fig. 9,4 delivery outlets of the first optical couple isolation drive circuit 31 connect respectively
4 input radio frequency mouths 412 of first and second single-pole three throw RF switch 49 are connect, 4 of the second optical couple isolation drive circuit 31 are defeated
Outlet is separately connected 4 input radio frequency mouths 412 of third and fourth single-pole three throw RF switch 49, third light-coupled isolation driving electricity
4 delivery outlets on road 31 are separately connected 4 input radio frequency mouths 412 of the five, the six single-pole three throw RF switches 49, the 4th optocoupler
3 delivery outlets of isolated drive circuit 31 are separately connected 3 input radio frequency mouths 412 of the 7th single-pole three throw RF switch 49,
Remaining 1 delivery outlet of 4th optical couple isolation drive circuit 31 is directly hanging, and this completes 4 optical couple isolation drive circuits
31 control 15 input radio frequency mouths 412 of 7 single-pole double throw RF switch, are formed 15 paths.
The working principle of the utility model is as follows:
The RF switch switching device is mainly by power module 1, control module 2, switch selecting module 3 and RF switch group
4 four parts composition.The selection of DC-20GHz high bandwidth signals can be met and turn by wherein switching selecting module 3 and RF switch group 4
Change, the RF switch group by a main hilted broadsword six throw RF switch 42 provide 3 road cascade signals (main hilted broadsword six throws RF switch 42
3 connecting pins 46) for controlling other 3 throw RF switch 43 from hilted broadsword six, main hilted broadsword six throw RF switch 42 3 are defeated
Enter additional remaining 3, radio frequency mouth 412 18 input radio frequency mouths 412 for throwing RF switch 43 from hilted broadsword six, form 21 way switch groups,
Guarantee that whole system can calibrate 21 by test examination instrument simultaneously, can also be opened using structures, the radio frequencies such as single-pole double throw, single-pole three throw
Changing device deeply concerned can realize the selection and switching of multiple signals, it is ensured that more are tested simultaneously by test examination instrument, are compressed to greatest extent
Free time effectively improves test efficiency.Control module 2 is then by CPU (or the governor circuits 21 such as MCU), interface circuit 22, upper
Machine 23, display circuit 24 and manual switching key 25 form.Wherein, single-chip microcontroller is mainly used for being responsible for each composition mould as CPU
Block carries out coordination and comprehensive management, realizes the reception of various information and assigning for instruction；Interface circuit 22 provide USB, RS232 or
GPIB communication interface, the convenient communication connection with host computer；Host computer 23 is used to down send instructions；Display circuit 24 is for prompting work
Make path；Manual switching key 25 is used for manual switching path；Power module 1 selects decompression chip, and supply voltage 5V is reduced to
3.3V voltage, for ensureing the normal power supply of single-chip microcontroller and other circuits；It switchs selecting module 3 and controls multi-channel rf and switch and lead to
It is disconnected.The device is one-to-many switching device, and synchronization only allows to open a channel, it is ensured that user obtains required
Unique data；21 road switching channels are set altogether.Wherein the course of work is as follows: after the starting of RF switch switching device, carrying out initial
Change, default connects the 1st channel.By standard 5 be connected to output radio frequency mouth 411, more be connected respectively to by test examination instrument 6 it is multiple defeated
Enter on radio frequency mouth 412, according to the instruction of host computer 23, switches different input channels, data needed for obtaining user；User can also
The switching selection in channel is carried out manually, and connection type is as shown in Figure 10 and Figure 11.
Although those familiar with the art answers the foregoing describe specific embodiment of the present utility model
Working as understanding, we are merely exemplary described specific embodiment, rather than for the limit to the scope of the utility model
Fixed, those skilled in the art modification and variation equivalent made by the spirit according to the utility model all should
Cover in the scope of the claimed protection of the utility model.
Claims (10)
1. a kind of RF switch switching device, it is characterised in that: including a power module, a control module, a switch selection mould
Block and a RF switch group；The control module include a governor circuit, an interface circuit, a display circuit, a host computer and
A plurality of manual switching keys, the switch selecting module includes a plurality of optical couple isolation drive circuits, the RF switch group
It is switched including plurality of radio；
The power module switchs with governor circuit, a plurality of optical couple isolation drive circuits and plurality of radio connect respectively, institute
State governor circuit respectively with the input port of a plurality of optical couple isolation drive circuits, interface circuit, display circuit and a plurality of hands
Dynamic switching key connection, the interface circuit are connected to host computer, and an output radio frequency mouth is equipped in a plurality of RF switches
It is switched respectively with plurality of radio with a plurality of input radio frequency mouths, the output port of a plurality of optical couple isolation drive circuits
The corresponding connection of input radio frequency mouth, and be attached between plurality of radio switch and realize a plurality of input radio frequency mouths and output radio frequency
Mapping between mouthful forms a plurality of input radio frequency mouths and exports the plural channel between radio frequency mouth, and the manual switching is pressed
The number of key is configured with input radio frequency mouth with the number of output radio frequency mouth and identical and one-to-one correspondence.
2. a kind of RF switch switching device as described in claim 1, it is characterised in that: a plurality of RF switches include
One main hilted broadsword six throw RF switch and it is a plurality of throw RF switch from hilted broadsword six, the main hilted broadsword six throw RF switch and each from
Hilted broadsword six is thrown and is equipped with a common end and six control terminals on RF switch, and the main hilted broadsword six throws the common end conduct of RF switch
Radio frequency mouth is exported, six control terminals that the main hilted broadsword six throws RF switch are divided into a plurality of connecting pins and a plurality of fixing ends,
Wherein, the number of the connecting pin with throw that RF switch number is identical from hilted broadsword six, the number of the connecting pin and fixing end
Number and be six, it is each described to be respectively connected to the company that main hilted broadsword six throws RF switch from the common end that hilted broadsword six throws RF switch
End is connect, it is each described to throw the control terminal of RF switch from hilted broadsword six and fixing end that main hilted broadsword six throws RF switch is penetrated as input
Frequency mouth.
3. a kind of RF switch switching device as described in claim 1, it is characterised in that: a plurality of RF switches are
Single-pole double throw RF switch is equipped with a common end and two control terminals, two controls on each single-pole double throw RF switch
End processed is divided into a connecting pin and a fixing end, and the common end of first single-pole double throw RF switch is used as output radio frequency mouth,
The common end of next single-pole double throw RF switch is connected to the connecting pin of a single-pole double throw RF switch, often
The fixing end of a single-pole double throw RF switch and the connecting pin of the last one single-pole double throw RF switch are penetrated as input
Frequency mouth.
4. a kind of RF switch switching device as described in claim 1, it is characterised in that: a plurality of RF switches are
Single-pole three throw RF switch is equipped with a common end and three control terminals, three controls on each single-pole three throw RF switch
End processed is divided into a connecting pin and two fixing ends, and the common end of first single-pole three throw RF switch is used as output radio frequency mouth,
The common end of next single-pole three throw RF switch is connected to the connecting pin of a single-pole three throw RF switch, often
The fixing end of a single-pole three throw RF switch and the connecting pin of the last one single-pole three throw RF switch are penetrated as input
Frequency mouth.
5. a kind of RF switch switching device as described in claim 1, it is characterised in that: the governor circuit includes a chip
U10, a crystal oscillator Y1, a resistance R83, a resistance R84, a resistance R85, a capacitor C15, a capacitor C16, a capacitor C17, an electricity
Hold C19, a capacitor C20, a capacitor C21 and capacitor a C23, the model STM32F103RBT6 of the chip U10；
The first pin of the chip U10 is connected to power module, the 5th pin difference of the chip U10 by resistance R83
Connect with one end of one end of resistance R84, one end of crystal oscillator Y1 and capacitor C16, the 6th pin of the chip U10 respectively with electricity
Hinder one end connection of the other end of R84, the other end of crystal oscillator Y1 and capacitor C17, the other end and capacitor C17 of the capacitor C16
The other end be grounded；The 13rd pin of the chip U10 is connect with one end of one end of capacitor C19 and resistance R85 respectively,
The 12nd pin of the chip U10 and the other end of capacitor C19 are grounded, and the 18th pin of the chip U10 is connected to
One end of capacitor C21, the 19th pin, the other end of capacitor C21 and the other end of resistance R85 of the chip U10 are connected to
Power module, the 31st pin of the chip U10 are connected to one end of capacitor C23, and the 32nd of the chip U10 is drawn
Foot is connected to the other end of capacitor C23, and the 47th pin of the chip U10 is connected to one end of capacitor C20, the chip
The 48th pin of U10 is connected to the other end of capacitor C20, and the 63rd pin of the chip U10 is connected to capacitor C15
One end, the 64th pin of the chip U10 and the other end of capacitor C15 are connected to power module；
The 46th pin and the 49th pin of the chip U10 is connected to manual switching key, and the of the chip U10
42 pins and the 43rd pin are connected to interface circuit, and the 28th pin of the chip U10, the 29th are drawn
Foot, the 30th pin, the 33rd pin, the 34th pin, the 35th pin, the 36th pin, the 37th are drawn
Foot, the 38th pin, the 39th pin, the 40th pin, the 41st pin, the 44th pin, the 50th pin,
51st pin, the 54th pin, the 55th pin, the 56th pin, the 57th pin, second pin,
Each pin in 25 pins and the 45th pin respectively with the input port of a plurality of optical couple isolation drive circuits and
Display circuit connection.
6. a kind of RF switch switching device as described in claim 1, it is characterised in that: each light-coupled isolation driving electricity
Road includes a chip U4, a resistance R9, a resistance R10, a resistance R11, a resistance R14, a resistance R17, a resistance R20, one
Resistance R23, a resistance R26, a resistance R29 and resistance a R32, the model TLP521-4 of the chip U4；
The first pin of the chip U4 is connected to one end of resistance R11, and the third pin of the chip U4 is connected to resistance R17
One end, the 5th pin of the chip U4 is connected to one end of resistance R23, and the 7th pin of the chip U4 is connected to resistance
One end of R29, the other end of the resistance R11, the other end of resistance R17, the other end of resistance R23 and resistance R29 it is another
End is connected to power module, and the 9th pin of the chip U4 is connected to one end of resistance R32, and the 11st of the chip U4 the
Pin is connected to one end of resistance R26, and the 13rd pin of the chip U4 is connected to one end of resistance R20, the chip U4
The 15th pin be connected to one end of resistance R14, the other end of the resistance R32, the other end of resistance R26, resistance R20
The other end of the other end and resistance R14 are grounded, the tenth pin, the 12nd pin, the 14th pin and of the chip U4
16 pins are connect with one end of one end of resistance R9 and resistance R10 respectively, the other end of the resistance R9 and resistance R10's
The other end is connected to power module；
Second pin, the 4th pin, the 6th pin and the 8th pin of the chip U4 are respectively connected to the correspondence of main control module
On pin, the 9th pin, the 11st pin, the 13rd pin and the 15th pin of the chip U4 is respectively connected to radio frequency and opens
The correspondence input radio frequency mouth of pass.
7. a kind of RF switch switching device as described in claim 1, it is characterised in that: the output radio frequency mouth is connected to mark
Quasi- device, the input radio frequency mouth are additionally coupled to corresponding by test examination instrument.
8. a kind of RF switch switching device as described in claim 1, it is characterised in that: the power module includes a switch
Power supply and a DC-DC power source conversion device, the Switching Power Supply drive with DC-DC power source conversion device, a plurality of light-coupled isolations respectively
Circuit and plurality of radio switch connection, the DC-DC power source conversion device are connected to governor circuit.
9. a kind of RF switch switching device as described in claim 1, it is characterised in that: the interface circuit be USB,
RS232 or GPIB communication interface.
10. a kind of RF switch switching device as described in claim 1, it is characterised in that: the display circuit is that LED is shown
Lamp.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920308379.0U CN209545599U (en) | 2019-03-12 | 2019-03-12 | A kind of RF switch switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920308379.0U CN209545599U (en) | 2019-03-12 | 2019-03-12 | A kind of RF switch switching device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415929A (en) * | 2020-11-18 | 2021-02-26 | 内蒙古一机集团宏远电器股份有限公司 | Double-end car owner secondary control right auto-change over device |
| CN114884498A (en) * | 2022-06-02 | 2022-08-09 | 深圳市泰高技术有限公司 | CMOS logic control circuit, integrated chip and radio frequency switch |
| CN115834473A (en) * | 2022-10-18 | 2023-03-21 | 中国电子科技集团公司第十研究所 | Route switching equipment |
| GB2612851A (en) * | 2021-11-16 | 2023-05-17 | Iceye Oy | Radio frequency switch driver |
-
2019
- 2019-03-12 CN CN201920308379.0U patent/CN209545599U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415929A (en) * | 2020-11-18 | 2021-02-26 | 内蒙古一机集团宏远电器股份有限公司 | Double-end car owner secondary control right auto-change over device |
| GB2612851A (en) * | 2021-11-16 | 2023-05-17 | Iceye Oy | Radio frequency switch driver |
| CN114884498A (en) * | 2022-06-02 | 2022-08-09 | 深圳市泰高技术有限公司 | CMOS logic control circuit, integrated chip and radio frequency switch |
| CN114884498B (en) * | 2022-06-02 | 2023-08-25 | 深圳市泰高技术有限公司 | CMOS logic control circuit, integrated chip and radio frequency switch |
| CN115834473A (en) * | 2022-10-18 | 2023-03-21 | 中国电子科技集团公司第十研究所 | Route switching equipment |
| CN115834473B (en) * | 2022-10-18 | 2024-04-16 | 中国电子科技集团公司第十研究所 | Route switching equipment |
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