CN207867384U - A kind of protective device of network engineering low-tension supply - Google Patents
A kind of protective device of network engineering low-tension supply Download PDFInfo
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- CN207867384U CN207867384U CN201820356870.6U CN201820356870U CN207867384U CN 207867384 U CN207867384 U CN 207867384U CN 201820356870 U CN201820356870 U CN 201820356870U CN 207867384 U CN207867384 U CN 207867384U
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- transport
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Abstract
The utility model discloses a kind of protective devices of network engineering low-tension supply, including voltage collection circuit, compensate amplifying circuit and filtering output circuit, voltage signal when the voltage collection circuit acquisition network engineering is worked with low-tension supply, compensated amplifying circuit uses power supply+10V thermal compensation signals, transport and placing device AR1 amplified signals are devised simultaneously and the output signal of transport and placing device AR2 is adjusted with triode Q2, finally filtering output circuit exports after composing in parallel lc circuit filtering with inductance L3 and capacitance C8, it that is to say output voltage when network engineering is worked with low-tension supply, the under-voltage problem of network engineering low-tension supply can be efficiently solved, ensure the powered stable of network engineering low-tension supply, play the effect of protection network engineering low-tension supply.
Description
Technical field
The utility model is related to network engineeringtechnique fields, more particularly to a kind of protection of network engineering low-tension supply
Device.
Background technology
Currently, network engineering is to bring great change in people’s lives, it may be said that people’s lives are not from
Open a series of equipment of network engineering institute band, wherein network engineering is the power resources of network engineering with low-tension supply, therefore
Need the powered stable of guarantee network engineering low-tension supply.
So the utility model provides a kind of new scheme to solve the problems, such as this.
Utility model content
For the above situation, to overcome the defect of the prior art, the utility model to be designed to provide a kind of network work
The protective device of journey low-tension supply, have be skillfully constructed, the characteristic of human oriented design, can efficiently solve network engineering use
The under-voltage problem of low-tension supply ensures the powered stable of network engineering low-tension supply, plays protection network engineering low tension
The effect in source.
Its technical solution solved is a kind of protective device of network engineering low-tension supply, including voltage collection circuit,
Compensate amplifying circuit and filtering output circuit, the voltage when voltage collection circuit acquisition network engineering is worked with low-tension supply
Signal, compensated amplifying circuit use power supply+10V thermal compensation signals, while devise transport and placing device AR1 amplified signals and use three
Pole pipe Q2 adjusts the output signal of transport and placing device AR2, finally filters output circuit and composes in parallel LC electricity with inductance L3 and capacitance C8
It is exported after the filtering of road, that is to say output voltage when network engineering is worked with low-tension supply；
The compensation amplifying circuit includes transport and placing device AR1, and the homophase input of transport and placing device AR1 connects the anode of diode D3
With the anode of diode D2, the cathode of diode D2 connects the base stage of triode Q2, and the cathode of diode D3 meets slide rheostat RW2
Contact 2, the contact 1 of slide rheostat RW2 connects the cathode of diode D6, one end of the anode connecting resistance R2 of diode D6, electricity
Hinder one end of the anode and resistance R1 of another terminating diode D5 of R2, the minus earth of diode D6, the other end of resistance R1
Power supply+10V is met, the contact 3 of slide rheostat RW2 connects the collector of one end and triode Q1 of inductance L2, and inductance L2's is another
One end of terminating resistor R5, the in-phase input end of another termination transport and placing device AR2 of resistance R5, the emitter of triode Q1 connect amplifier
The base stage of the inverting input of device AR2, triode Q1 connects the output end of transport and placing device AR1 and the collector and resistance of triode Q2
One end of R3, the inverting input of one end and transport and placing device AR1 of another terminating resistor R4 of resistance R3, another termination of resistance R4
Ground, the emitter of triode Q2 connect the output end of transport and placing device AR2.
Compared with prior art, the beneficial effects of the utility model are as follows：
Voltage signal when 1. voltage collection circuit acquisition network engineering is worked with low-tension supply, compensated amplifying circuit fortune
With power supply+10V thermal compensation signals, while devising transport and placing device AR1 amplified signals and adjusting transport and placing device AR2's with triode Q2
Output signal finally filters after output circuit composes in parallel lc circuit filtering with inductance L3 and capacitance C8 and exports, that is to say net
Output voltage when network engineering is worked with low-tension supply efficiently solves the under-voltage problem of network engineering low-tension supply, ensures
The powered stable of network engineering low-tension supply plays the effect of protection network engineering low-tension supply.
2. when under-voltage, triode Q1 is not turned at this time, triode Q2 conductings, and transport and placing device AR2 exports current potential at this time
Signal becomes larger, while the emitter potential of triode Q2 while the input filter output circuit together with transport and placing device AR2 output current potentials
Interior, when electric voltage over press, triode Q1 conductings, triode Q2 is not turned on, and transport and placing device AR2 output current potentials reduce, and work as voltage signal
When normal, triode Q1, triode Q2 are not turned on, and are achieved the effect that adjust voltage signal, are ensured network engineering low tension
The powered stable in source.
Description of the drawings
Fig. 1 is a kind of circuit module figure of the protective device of network engineering low-tension supply of the utility model.
Fig. 2 is a kind of circuit diagram of the protective device of network engineering low-tension supply of the utility model.
Specific implementation mode
Aforementioned and other technology contents, feature and effect in relation to the utility model, in following cooperation with reference to figures 1 through attached
Fig. 2 is in the detailed description of embodiment, can clearly present.The structure content being previously mentioned in following embodiment is to say
Bright book attached drawing is reference.
Embodiment one, a kind of protective device of network engineering low-tension supply, including voltage collection circuit, compensation amplification electricity
Road and filtering output circuit, the voltage signal when voltage collection circuit acquisition network engineering is worked with low-tension supply, through mending
It repays amplifying circuit and uses power supply+10V thermal compensation signals, while devising transport and placing device AR1 amplified signals and using triode Q2 tune
The output signal of transport and placing device AR2 is saved, after finally filtering output circuit composes in parallel lc circuit filtering with inductance L3 and capacitance C8
Output, that is to say output voltage when network engineering is worked with low-tension supply；
The signal of three tunnel receiving voltage Acquisition Circuit output of the compensation amplifying circuit point, all the way through diode D2, sliding
Rheostat RW2 provides current potential for the collector of triode Q1, while the homophase input of transport and placing device AR2 is inputted after inductance L2 filtering
Terminal potential, wherein power supply+10V are the collector and transport and placing device of triode Q1 by slide rheostat RW2 after resistance R1, R2 partial pressure
The homophase input terminal potential of AR2 provides base current potential, and two tunnels are through the base potential that diode D2 is triode Q2, and three tunnels are through transport and placing device
With the collector potential for the base potential and triode Q2 for after phase enhanced processing being triode Q1, transport and placing device AR2 is played to be compared AR2
The effect of signal, triode Q1, triode Q2 are to adjust voltage signal switch, and when under-voltage, triode Q1 is not led at this time
It is logical, triode Q2 conductings, at this time transport and placing device AR2 export electric potential signal and become larger, while the emitter potential of triode Q2 simultaneously with
Transport and placing device AR2 outputs current potential is together in input filter output circuit, and when electric voltage over press, triode Q1 conductings, triode Q2 is not
Conducting, transport and placing device AR2 output current potentials reduce, and when voltage signal is normal, triode Q1, triode Q2 are not turned on, and reach tune
The effect of voltage signal is saved, ensures that the powered stable of network engineering low-tension supply, the homophase input of transport and placing device AR1 connect two
The anode of the anode and diode D2 of pole pipe D3, the cathode of diode D2 connect the base stage of triode Q2, and the cathode of diode D3 connects
The contact 2 of slide rheostat RW2, the contact 1 of slide rheostat RW2 connect the cathode of diode D6, and the anode of diode D6 connects electricity
Hinder one end of R2, one end of the anode and resistance R1 of another terminating diode D5 of resistance R2, the minus earth of diode D6, electricity
Another termination power+10V of R1 is hindered, the contact 3 of slide rheostat RW2 connects the collector of one end and triode Q1 of inductance L2,
One end of another terminating resistor R5 of inductance L2, the in-phase input end of another termination transport and placing device AR2 of resistance R5, triode Q1's
Emitter connects the inverting input of transport and placing device AR2, and the base stage of triode Q1 connects the collection of the output end and triode Q2 of transport and placing device AR1
One end of electrode and resistance R3, the inverting input of one end and transport and placing device AR1 of another terminating resistor R4 of resistance R3, resistance
The other end of R4 is grounded, and the emitter of triode Q2 connects the output end of transport and placing device AR2.
Embodiment two, on the basis of embodiment one, the voltage collection circuit is mutual with the voltage of model HD205A
Voltage signal when sensor U1 acquisitions network engineering is worked with low-tension supply, the input offset amplifying circuit after inductance L1 filtering
It is interior, the anode of one end and diode D4 of the power supply terminating resistor R11 of voltage transformer U1, another termination power of resistance R11+
10V, the minus earth of diode D4, the ground terminal ground connection of voltage transformer U1, the output of voltage transformer U1 terminate voltage-stabiliser tube
One end of the cathode and inductance L1 of D1, the plus earth of voltage-stabiliser tube D1, the homophase input of another termination transport and placing device AR1 of inductance L1
End.
Embodiment three, on the basis of embodiment two, the filtering output circuit uses electricity with resistance R9 partial pressures
Sense L3 and capacitance C8 is exported after composing in parallel the filtering of LC filter circuits, that is to say output when network engineering is worked with low-tension supply
Voltage, the output end of a termination transport and placing device AR2 of resistance R9, one end of another termination inductance L3 of resistance R9, inductance L3's is another
One end of one end and capacitance C8 of one terminating resistor R10, the other end ground connection of capacitance C8, another termination signal of resistance R10 are defeated
Exit port.
When the utility model is specifically used, a kind of protective device of network engineering low-tension supply, including voltage acquisition electricity
Road, compensation amplifying circuit and filtering output circuit, when the voltage collection circuit acquisition network engineering is worked with low-tension supply
Voltage signal, compensated amplifying circuit uses power supply+10V thermal compensation signals, while devising transport and placing device AR1 amplified signals and fortune
The output signal of transport and placing device AR2 is adjusted with triode Q2, is finally filtered output circuit and is composed in parallel with inductance L3 and capacitance C8
It is exported after lc circuit filtering, that is to say output voltage when network engineering is worked with low-tension supply；
The signal of three tunnel receiving voltage Acquisition Circuit output of the compensation amplifying circuit point, all the way through diode D2, sliding
Rheostat RW2 provides current potential for the collector of triode Q1, while the homophase input of transport and placing device AR2 is inputted after inductance L2 filtering
Terminal potential, wherein power supply+10V are the collector and transport and placing device of triode Q1 by slide rheostat RW2 after resistance R1, R2 partial pressure
The homophase input terminal potential of AR2 provides base current potential, and two tunnels are through the base potential that diode D2 is triode Q2, and three tunnels are through transport and placing device
With the collector potential for the base potential and triode Q2 for after phase enhanced processing being triode Q1, transport and placing device AR2 is played to be compared AR2
The effect of signal, triode Q1, triode Q2 are to adjust voltage signal switch, and when under-voltage, triode Q1 is not led at this time
It is logical, triode Q2 conductings, at this time transport and placing device AR2 export electric potential signal and become larger, while the emitter potential of triode Q2 simultaneously with
Transport and placing device AR2 outputs current potential is together in input filter output circuit, and when electric voltage over press, triode Q1 conductings, triode Q2 is not
Conducting, transport and placing device AR2 output current potentials reduce, and when voltage signal is normal, triode Q1, triode Q2 are not turned on, and reach tune
The effect of voltage signal is saved, the filtering output circuit uses inductance L3 and capacitance C8 parallel connection groups with resistance R9 partial pressures
It is exported after being filtered at LC filter circuits, that is to say output voltage when network engineering is worked with low-tension supply, ensure network engineering
With the powered stable of low-tension supply.
The above is to combine specific implementation mode further detailed description of the utility model, and it cannot be said that originally
Utility model specific implementation is limited only to this；For belonging to the utility model and for those skilled in the technology concerned,
Under the premise of technical solutions of the utility model thinking, made by expand and operating method, data replacement, should all fall
Within scope of protection of the utility model.
Claims (3)
1. a kind of protective device of network engineering low-tension supply, including voltage collection circuit, compensation amplifying circuit and filtering are defeated
Go out circuit, which is characterized in that the voltage signal when voltage collection circuit acquisition network engineering is worked with low-tension supply, through mending
It repays amplifying circuit and uses power supply+10V thermal compensation signals, while devising transport and placing device AR1 amplified signals and using triode Q2 tune
The output signal of transport and placing device AR2 is saved, after finally filtering output circuit composes in parallel lc circuit filtering with inductance L3 and capacitance C8
Output, that is to say output voltage when network engineering is worked with low-tension supply；
The compensation amplifying circuit includes transport and placing device AR1, and the homophase input of transport and placing device AR1 connects the anode and two of diode D3
The anode of pole pipe D2, the cathode of diode D2 connect the base stage of triode Q2, and the cathode of diode D3 connects touching for slide rheostat RW2
Point 2, the contact 1 of slide rheostat RW2 meets the cathode of diode D6, one end of the anode connecting resistance R2 of diode D6, resistance R2
Another terminating diode D5 anode and resistance R1 one end, the minus earth of diode D6, resistance R1 another termination electricity
The contact 3 of source+10V, slide rheostat RW2 connect the collector of one end and triode Q1 of inductance L2, another termination of inductance L2
One end of resistance R5, the in-phase input end of another termination transport and placing device AR2 of resistance R5, the emitter of triode Q1 connect transport and placing device
The base stage of the inverting input of AR2, triode Q1 meets the output end of transport and placing device AR1 and the collector of triode Q2 and resistance R3
One end, the inverting input of one end and transport and placing device AR1 of another terminating resistor R4 of resistance R3, another termination of resistance R4
Ground, the emitter of triode Q2 connect the output end of transport and placing device AR2.
2. a kind of protective device of network engineering low-tension supply as described in claim 1, which is characterized in that the voltage acquisition
Circuit includes the voltage transformer U1 of model HD205A, one end and two poles of the power supply terminating resistor R11 of voltage transformer U1
The anode of pipe D4, another termination power+10V of resistance R11, the minus earth of diode D4, the ground terminal of voltage transformer U1
Ground connection, one end of the cathode and inductance L1 of the output termination voltage-stabiliser tube D1 of voltage transformer U1, the plus earth of voltage-stabiliser tube D1, electricity
Feel the in-phase input end of another termination transport and placing device AR1 of L1.
3. a kind of protective device of network engineering low-tension supply as described in claim 1, which is characterized in that the filtering output
Circuit includes resistance R9, the output end of a termination transport and placing device AR2 of resistance R9, one end of another termination inductance L3 of resistance R9,
One end of one end and capacitance C8 of another terminating resistor R10 of inductance L3, the other end ground connection of capacitance C8, resistance R10's is another
Termination signal output port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820356870.6U CN207867384U (en) | 2018-03-16 | 2018-03-16 | A kind of protective device of network engineering low-tension supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820356870.6U CN207867384U (en) | 2018-03-16 | 2018-03-16 | A kind of protective device of network engineering low-tension supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207867384U true CN207867384U (en) | 2018-09-14 |
Family
ID=63456010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820356870.6U Expired - Fee Related CN207867384U (en) | 2018-03-16 | 2018-03-16 | A kind of protective device of network engineering low-tension supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207867384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375203A (en) * | 2018-12-11 | 2019-02-22 | 中交公局重庆城市建设发展有限公司 | Distance-measuring equipment and its location algorithm based on fmcw radar signal processing |
-
2018
- 2018-03-16 CN CN201820356870.6U patent/CN207867384U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375203A (en) * | 2018-12-11 | 2019-02-22 | 中交公局重庆城市建设发展有限公司 | Distance-measuring equipment and its location algorithm based on fmcw radar signal processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20210316 |