CN209017019U - Network signal enhancement device - Google Patents
Network signal enhancement device Download PDFInfo
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- CN209017019U CN209017019U CN201821903092.4U CN201821903092U CN209017019U CN 209017019 U CN209017019 U CN 209017019U CN 201821903092 U CN201821903092 U CN 201821903092U CN 209017019 U CN209017019 U CN 209017019U
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Abstract
Network signal enhancement device.There is provided it is a kind of have be skillfully constructed, be at low cost, it is ensured that the network signal enhancement device of the stability of signal.Including sequentially connected filter circuit, amplitude limiting amplifier circuit and signal intensifier circuit, the filter circuit is for being filtered network signal；The amplitude limiting amplifier circuit is used to carry out clipping output to filtered network signal；The signal intensifier circuit is used to improve the transmission power of the network signal after clipping output.In work, there are certain noise signals for the network signal of input, amplitude limiting amplifier circuit input terminal is sent into after filtering using LC, operational amplifier U1 wave reception filtering circuit output signal in amplitude limiting amplifier circuit, operational amplifier U2 is parallel on the feedback channel of operational amplifier U1 and exports signal limiter, it is sent into the signal intensifier circuit after pressure stabilizing and improves network signal transmission power, there is very big Development volue and practical value.
Description
Technical field
The utility model relates to network signal fields, more particularly to network signal enhancement device.
Background technique
With the continuous development of Communication in China network, many conveniences, cordless communication network are brought to our life
To realize that information exchange, various information can be propagated widely in free space by electromagnetic wave signal, therefore by
To the favor of people, and more and more intelligent communication equipment are also continuously increased the pressure of wireless network, then wireless network
Signal optimization is just particularly important, wherein enhancing wireless network signal is the key that optimization, the enhancing of network signal is often
Keep signal amplitude fluctuations very big, causes distorted signals, unstable.
Utility model content
The utility model is skillfully constructed in view of the above problems, providing one kind and having, is at low cost, it is ensured that the stability of signal
Network signal enhancement device.
The technical solution of the utility model is: including sequentially connected filter circuit, amplitude limiting amplifier circuit and signal enhancing
Circuit, the filter circuit is for being filtered network signal；The amplitude limiting amplifier circuit is used to believe filtered network
Number carry out clipping output；The signal intensifier circuit is used to improve the transmission power of the network signal after clipping output.
The filter circuit includes inductance L1, capacitor C1 and resistance R1, one end of input signal INT connection inductance L1, electricity
It is grounded after the other end connection capacitor C1 of sense L1, one end of resistance R1 is connected between inductance L1 and capacitor C1, and resistance R's 1 is another
One end connects the input terminal of the amplitude limiting amplifier circuit.
The amplitude limiting amplifier circuit includes operational amplifier U1, operational amplifier U2, resistance R2, resistance R3, capacitor C2, two
Pole pipe VD1, zener diode D1 and zener diode D2,
The reverse input end of the operational amplifier U1 receives the output signal of the filter circuit, operational amplifier U1's
Reverse input end of the feedback signal a part through resistance R2 feedback to operational amplifier U1 is exported, another part flows into operation amplifier
The noninverting input of device U2, operational amplifier U2 flow into the reverse input end of operational amplifier U1 through diode VD1 more afterwards；
Wherein, the noninverting input ground connection of operational amplifier U1, the reverse input end of operational amplifier U2 is with resistance R3's
One end, capacitor C2 one end connected with the cathode of zener diode D1, the other end of resistance R3 is connect with+12V power supply, capacitor C2
The other end connect with the anode of the output end of operational amplifier U2 and diode VD1, the plus earth of zener diode D1,
The output signal of operational amplifier U1 flows into the input of the signal intensifier circuit after zener diode D2 pressure stabilizing
End.
The signal intensifier circuit includes resistance R4, triode VT1, triode VT2, capacitor C3 and resistance R5,
The base stage of triode VT1 is connected with the base stage of triode VT2, and one end of resistance R4 connects the defeated of amplitude limiting amplifier circuit
Signal out, the other end are connected between the base stage of both triode VT1, VT2,
The collector of triode VT1 passes through resistance R5 connection+12V power supply, the emitter and triode VT2 of triode VT1
Emitter be connected, the grounded collector of triode VT2；
Transmitting antenna ANT is connected between the emitter of both triode VT1, VT2 by capacitor C3.
Compared with prior art, the beneficial effects of the utility model are as follows:
1. there are certain noise signals for the network signal of input, amplitude limiting amplifier circuit input is sent into after filtering using LC
It holds, operational amplifier U1 wave reception filtering circuit output signal in amplitude limiting amplifier circuit, operational amplifier U2 is parallel to operation amplifier
Signal limiter is exported on the feedback channel of device U1, the signal intensifier circuit is sent into after pressure stabilizing and improves network signal transmitting function
Rate has very big Development volue and practical value.
2. operational amplifier U1 reverse input end wave reception filtering circuit output signal, the output feedback letter of operational amplifier U1
Number a part feeds back the reverse input end to operational amplifier U1 through resistance R2, and another part flows into the in the same direction of operational amplifier U2
Input terminal, operational amplifier U2 flow into the reverse input end of operational amplifier U1 through diode VD1 more afterwards, believe wireless network
Number enhancing while so that signal amplitude is maintained within a certain range, it is ensured that the stability of signal.
Detailed description of the invention
Fig. 1 is the circuit module figure of the utility model,
Fig. 2 is the circuit diagram of the utility model.
Specific embodiment
The utility model is as shown in Figs. 1-2, including sequentially connected filter circuit, amplitude limiting amplifier circuit and signal enhancing electricity
Road, the filter circuit is for being filtered network signal；The amplitude limiting amplifier circuit is used for filtered network signal
Carry out clipping output；The signal intensifier circuit is used to improve the transmission power of the network signal after clipping output.
The filter circuit includes inductance L1, capacitor C1 and resistance R1, one end of input signal INT connection inductance L1, electricity
It is grounded after the other end connection capacitor C1 of sense L1, one end of resistance R1 is connected between inductance L1 and capacitor C1, and resistance R's 1 is another
One end connects the input terminal of the amplitude limiting amplifier circuit.
After inductance L1 and capacitor C1 composition LC filter handles the network signal of input, through described in resistance R1 partial pressure feeding
The input terminal of amplitude limiting amplifier circuit.
The amplitude limiting amplifier circuit includes operational amplifier U1, operational amplifier U2, resistance R2, resistance R3, capacitor C2, two
Pole pipe VD1, zener diode D1 and zener diode D2,
The reverse input end of the operational amplifier U1 receives the output signal of the filter circuit, operational amplifier U1's
Reverse input end of the feedback signal a part through resistance R2 feedback to operational amplifier U1 is exported, another part flows into operation amplifier
The noninverting input of device U2, operational amplifier U2 flow into the reverse input end of operational amplifier U1 through diode VD1 more afterwards；
Wherein, the noninverting input ground connection of operational amplifier U1, the reverse input end of operational amplifier U2 is with resistance R3's
One end, capacitor C2 one end connected with the cathode of zener diode D1, the other end of resistance R3 is connect with+12V power supply, capacitor C2
The other end connect with the anode of the output end of operational amplifier U2 and diode VD1, the plus earth of zener diode D1,
The output signal of operational amplifier U1 flows into the input of the signal intensifier circuit after zener diode D2 pressure stabilizing
End.
The signal intensifier circuit includes resistance R4, triode VT1, triode VT2, capacitor C3 and resistance R5,
The base stage of triode VT1 is connected with the base stage of triode VT2, and one end of resistance R4 connects the defeated of amplitude limiting amplifier circuit
Signal out, the other end are connected between the base stage of both triode VT1, VT2,
The collector of triode VT1 passes through resistance R5 connection+12V power supply, the emitter and triode VT2 of triode VT1
Emitter be connected, the grounded collector of triode VT2；
Transmitting antenna ANT is connected between the emitter of both triode VT1, VT2 by capacitor C3.
In work, resistance R4 separately flows into triode VT1 after dividing the output signal for receiving the amplitude limiting amplifier circuit
Base stage and triode VT2 base stage, through triode VT1, VT2 composition common collector amplifying circuit signal power is amplified after
It exports in the emitter of triode VT1, VT2, is launched network signal by transmitting antenna ANT after capacitor C3 coupling ,+
12V power supply passes through the collector of resistance R5 connecting triode VT1, the grounded collector of triode VT2.
In the utility model concrete application, including filter circuit, amplitude limiting amplifier circuit and signal intensifier circuit, the filtering
Circuit is sent into the amplitude limiting amplifier circuit input terminal after the network signal that input port inputs is carried out LC filtering, and the clipping is put
Operational amplifier U1 wave reception filtering circuit output signal in big circuit, operational amplifier U2 are parallel to the feedback of operational amplifier U1
Signal limiter is exported on channel, the signal intensifier circuit is sent into after pressure stabilizing and improves network signal transmission power；
The filter circuit includes inductance L1, the network signal of input there are certain noise signal, using inductance L1 and
The network signal of input is filtered by capacitor C1 composition LC filter, is sent into the limited range enlargement electricity through resistance R1 partial pressure
Road input terminal.
The amplitude limiting amplifier circuit includes operational amplifier U1, and the reverse input end of operational amplifier U1 receives the filtering
Circuit output signal, in order to avoid operational amplifier U1 causes biggish signal amplitude fluctuations when signal amplifies, using operation
Output feedback signal a part of amplifier U1 feeds back the reverse input end to operational amplifier U1, another part stream through resistance R2
The noninverting input for entering operational amplifier U2 is compared, and+12V power supply is by resistance R3 partial pressure and diode D1 pressure stabilizing in operation
Amplifier U2 reverse input end is as comparison voltage, as the output signal voltage value less-than operation amplifier U2 of operational amplifier U1
Reverse input end voltage value when, operational amplifier export negative voltage, diode VD1 cut-off, operational amplifier U2 is unlimited at this time
Width effect；When the output signal voltage value of operational amplifier U1 is greater than the reverse input end voltage value of operational amplifier U2, fortune
It calculates amplifier and exports positive voltage, diode VD1 conducting, and the output signal voltage that enough electric currents make operational amplifier U1 is provided
Value is equal to the reverse input end voltage value of operational amplifier U2, and operational amplifier U2 is in clipping state at this time, and capacitor C2 is being limited
Play frequency compensation under web state, it is ensured that the stability of amplified signal, wherein operational amplifier U2 is more afterwards through diode
VD1 flows into the reverse input end of operational amplifier U1, and the noninverting input ground connection of operational amplifier U1, operational amplifier U2's is anti-
Connect to input terminal with the cathode of one end of resistance R3, one end of capacitor C2 and zener diode D1, the other end of resistance R3 with+
The connection of 12V power supply, the other end of capacitor C2 are connect with the anode of the output end of operational amplifier U2 and diode VD1, pressure stabilizing two
The plus earth of pole pipe D1, the output signal of operational amplifier U1 flow into the signal enhancing electricity after zener diode D2 pressure stabilizing
The input terminal on road.
The signal intensifier circuit includes that resistance R4 in order to further enhance wireless network signal makes wireless network signal
There is sufficiently large transmission power, will flow into triode after the amplitude limiting amplifier circuit output signal partial pressure will be received using resistance R4
The base stage of VT1, VT2, in triode after the common collector amplifying circuit of triode VT1, VT2 composition amplifies signal power
The emitter of VT1, VT2 exports, and reach signal enhances at double, by transmitting antenna ANT by network signal after capacitor C3 coupling
Launch ,+12V power supply passes through the collector of resistance R5 connecting triode VT1, the grounded collector of triode VT2.
When the utility model is specifically used, filter circuit is sent into after the network signal that input port inputs is carried out LC filtering
Operational amplifier U1 is amplified in amplitude limiting amplifier circuit, in order to avoid operational amplifier U1 signal amplify when cause it is biggish
Signal amplitude fluctuations are fed back through resistance R2 to operational amplifier U1's using output feedback signal a part of operational amplifier U1
Reverse input end, the noninverting input that another part flows into operational amplifier U2 are compared, and+12V power supply passes through resistance R3 points
It presses with diode D1 pressure stabilizing in operational amplifier U2 reverse input end as comparison voltage, when the output signal of operational amplifier U1
When the reverse input end voltage value of voltage value less-than operation amplifier U2, operational amplifier exports negative voltage, and diode VD1 is cut
Only, operational amplifier U2 is acted on without clipping at this time；When the output signal voltage value of operational amplifier U1 is greater than operational amplifier U2
Reverse input end voltage value when, operational amplifier exports positive voltage, diode VD1 conducting, and provides enough electric currents and make to transport
The output signal voltage value for calculating amplifier U1 is equal to the reverse input end voltage value of operational amplifier U2, at this time operational amplifier U2
In clipping state, capacitor C2 plays frequency compensation under clipping state, it is ensured that the stability of amplified signal, through two pole of pressure stabilizing
Signal intensifier circuit input terminal is sent into after pipe D2 pressure stabilizing has wireless network signal to further enhance wireless network signal
Sufficiently large transmission power, the common collector amplifying circuit of triode VT1, VT2 composition, which amplifies signal power, to be exported, through capacitor
Network signal is launched by transmitting antenna ANT after C3 coupling.
Claims (4)
1. network signal enhancement device, which is characterized in that increase including sequentially connected filter circuit, amplitude limiting amplifier circuit and signal
Forceful electric power road, the filter circuit is for being filtered network signal；The amplitude limiting amplifier circuit is used for filtered network
Signal carries out clipping output；The signal intensifier circuit is used to improve the transmission power of the network signal after clipping output.
2. network signal enhancement device according to claim 1, which is characterized in that the filter circuit include inductance L1,
Capacitor C1 and resistance R1, one end of input signal INT connection inductance L1, the other end of inductance L1 are grounded after connecting capacitor C1, electricity
One end of resistance R1 is connected between inductance L1 and capacitor C1, and the other end of resistance R 1 connects the input of the amplitude limiting amplifier circuit
End.
3. network signal enhancement device according to claim 1 or 2, which is characterized in that the amplitude limiting amplifier circuit includes
Operational amplifier U1, operational amplifier U2, resistance R2, resistance R3, capacitor C2, diode VD1, zener diode D1 and pressure stabilizing two
Pole pipe D2,
The reverse input end of the operational amplifier U1 receives the output signal of the filter circuit, the output of operational amplifier U1
Feedback signal a part feeds back the reverse input end to operational amplifier U1 through resistance R2, and another part flows into operational amplifier U2
Noninverting input, operational amplifier U2 more afterwards through diode VD1 flow into operational amplifier U1 reverse input end；
One end of wherein, the noninverting input ground connection of operational amplifier U1, the reverse input end of operational amplifier U2 and resistance R3,
One end of capacitor C2 is connected with the cathode of zener diode D1, and the other end of resistance R3 is connect with+12V power supply, and capacitor C2's is another
One end is connect with the anode of the output end of operational amplifier U2 and diode VD1, the plus earth of zener diode D1,
The output signal of operational amplifier U1 flows into the input terminal of the signal intensifier circuit after zener diode D2 pressure stabilizing.
4. network signal enhancement device according to claim 3, which is characterized in that the signal intensifier circuit includes resistance
R4, triode VT1, triode VT2, capacitor C3 and resistance R5,
The base stage of triode VT1 is connected with the base stage of triode VT2, the output letter of one end connection amplitude limiting amplifier circuit of resistance R4
Number, the other end is connected between the base stage of both triode VT1, VT2,
The collector of triode VT1 passes through resistance R5 connection+12V power supply, the emitter of triode VT1 and the hair of triode VT2
Emitter-base bandgap grading is connected, the grounded collector of triode VT2；
Transmitting antenna ANT is connected between the emitter of both triode VT1, VT2 by capacitor C3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821903092.4U CN209017019U (en) | 2018-11-19 | 2018-11-19 | Network signal enhancement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821903092.4U CN209017019U (en) | 2018-11-19 | 2018-11-19 | Network signal enhancement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209017019U true CN209017019U (en) | 2019-06-21 |
Family
ID=66842675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821903092.4U Active CN209017019U (en) | 2018-11-19 | 2018-11-19 | Network signal enhancement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209017019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109257053A (en) * | 2018-11-19 | 2019-01-22 | 国网江苏省电力有限公司仪征市供电分公司 | A kind of network signal enhancement device |
-
2018
- 2018-11-19 CN CN201821903092.4U patent/CN209017019U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109257053A (en) * | 2018-11-19 | 2019-01-22 | 国网江苏省电力有限公司仪征市供电分公司 | A kind of network signal enhancement device |
| CN109257053B (en) * | 2018-11-19 | 2023-06-23 | 国网江苏省电力有限公司仪征市供电分公司 | Network signal enhancing device |
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