CN205880091U - Circuit with power line carrier communication and electric energy quality monitoring function - Google Patents
Circuit with power line carrier communication and electric energy quality monitoring function Download PDFInfo
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- CN205880091U CN205880091U CN201620868912.5U CN201620868912U CN205880091U CN 205880091 U CN205880091 U CN 205880091U CN 201620868912 U CN201620868912 U CN 201620868912U CN 205880091 U CN205880091 U CN 205880091U
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Abstract
The utility model discloses a circuit with power line carrier communication and electric energy quality monitoring function. Wherein: inductance coils L1's both ends respectively with live wire L, zero line N links to each other, one side of inductance coils L1 is provided with an inductance coils L2 and an inductance coils L3 respectively, inductance coils L2's one end links to each other with resistance R1's one end, and resistance R1's the other end links to each other with resistance R2's one end. Current low voltage power line carrier communication module does not have circuit electric energy quality monitoring's function. The utility model has the advantages of: simple structure reduces the maintenance cost.
Description
Technical field
This utility model relates to a kind of circuit, especially one and has power line carrier communication and electric energy quality monitoring function
Circuit.
Background technology
Existing low-voltage power line carrier communication module does not have the function of circuit electric energy quality monitoring.
Summary of the invention
Task to be solved in the utility model is to provide one and has power line carrier communication and electric energy quality monitoring function
Circuit so that reach the microcontroller for controlling power line carrier communication and be also used for realizing power quality analysis.Based on
This circuit expanded out, in the case of the cost increasing Power Line Carrier Communication Module hardly, completes the application of most of electric power
The purpose of the electric energy quality monitoring function needed in.
In order to solve the problems referred to above, this utility model is achieved through the following technical solutions:
There is power line carrier communication and the circuit of electric energy quality monitoring function, including: inductance coil L1, live wire L, zero line
N, inductance coil L2, resistance R1, resistance R2, electric capacity C1, inductance coil L4, electric capacity C2, diode D1, diode D2, resistance R3,
Electric capacity C3, microcontroller, baseband processor, AFE (analog front end) AFE, wave filter Filter, electric capacity C4, electric capacity C5, inductance coil L3；
Wherein: the two ends of inductance coil L1 are connected with live wire L, zero line N respectively；The side of inductance coil L1 is respectively arranged with an inductance
A coil L2 and inductance coil L3；One end of inductance coil L2 is connected with one end of resistance R1, the other end of resistance R1 and electricity
One end of resistance R2 is connected；The other end ground connection of resistance R2；The remaining one end of inductance coil L2 is connected with the earth terminal with resistance R2；
Resistance R2 is in parallel with electric capacity C1；One end of electric capacity C1 is connected by one end of inductance coil L4 and electric capacity C2；Electric capacity C1 is remaining
One end remaining with electric capacity C2, one end is connected；One end of electric capacity C2 is connected by one end of resistance R3 and electric capacity C3；Electric capacity C2's
The other end is connected by resistance R4 one end remaining with electric capacity C3；The two ends of electric capacity C3 are connected with microcontroller the most respectively；
The left end of resistance R3 respectively with the positive pole of diode D1, the negative pole of diode D2 is connected；The negative pole of diode D1 and one 3.3 volts
Power supply be connected；The plus earth of diode D2；The negative pole of diode D2 is connected with the positive pole of diode D1；Inductance coil L3's
Two ends are connected with wave filter Filter with electric capacity C5 by electric capacity C4 respectively；Wave filter Filter is connected with AFE (analog front end) AFE；Mould
Intend front-end A FE to be connected with baseband processor；Baseband processor is connected with microcontroller.
There is power line carrier communication and the circuit of electric energy quality monitoring function, wherein: inductance coil L1 and inductance coil
The coil ratio of L3 is 1:1；The coil ratio of inductance coil L1 and inductance coil L2 is 10:1.
There is power line carrier communication and the circuit of electric energy quality monitoring function, wherein: microcontroller is placed on a box
In son；Thermo-electric generation sheet it is provided with on the outer wall of box；Box be internally provided with temperature sensor.
There is power line carrier communication and the circuit of electric energy quality monitoring function, wherein: before wave filter Filter and simulation
It is provided with signal amplifier between end AFE.
The utility model has the advantage of: simple in construction, by transforming traditional coupling circuit design, it is provided that go out two-way defeated
Going out, a road is used for realizing electric energy quality monitoring, another road be used for power line carrier communication, thus reach power line carrier communication and
The function of electric energy quality monitoring, the thermo-electric generation sheet arranged in addition can play the effect of energy recovery.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model.
Fig. 2 is the position view of thermo-electric generation sheet of the present utility model.
Reference: microcontroller 1, thermo-electric generation sheet 2, temperature sensor 3, box 4.
Detailed description of the invention
Embodiment 1, there is power line carrier communication and the circuit of electric energy quality monitoring function, including: inductance coil L1, fire
Line L, zero line N, inductance coil L2, resistance R1, resistance R2, electric capacity C1, inductance coil L4, electric capacity C2, diode D1, diode
D2, resistance R3, electric capacity C3, microcontroller 1, baseband processor, AFE (analog front end) AFE, wave filter Filter, electric capacity C4, electric capacity C5,
Inductance coil L3；Wherein: the two ends of inductance coil L1 are connected with live wire L, zero line N respectively；The side of inductance coil L1 sets respectively
It is equipped with an an inductance coil L2 and inductance coil L3；One end of inductance coil L2 is connected with one end of resistance R1, resistance R1
The other end be connected with one end of resistance R2；The other end ground connection of resistance R2；The remaining one end of inductance coil L2 with resistance R2
Earth terminal be connected；Resistance R2 is in parallel with electric capacity C1；One end of electric capacity C1 is connected by one end of inductance coil L4 and electric capacity C2；
One end remaining with electric capacity C2, the remaining one end of electric capacity C1 is connected；The one end of electric capacity C2 one end phase by resistance R3 and electric capacity C3
Even；The other end of electric capacity C2 is connected by resistance R4 one end remaining with electric capacity C3；The two ends of electric capacity C3 are the most respectively with micro-
Controller 1 is connected；The left end of resistance R3 respectively with the positive pole of diode D1, the negative pole of diode D2 is connected；Diode D1's is negative
The pole power supply with 3.3 volts is connected；The plus earth of diode D2；The positive pole phase of the negative pole of diode D2 and diode D1
Even；The two ends of inductance coil L3 are connected with wave filter Filter with electric capacity C5 by electric capacity C4 respectively；Wave filter Filter and mould
Intend front-end A FE to be connected；AFE (analog front end) AFE is connected with baseband processor；Baseband processor is connected with microcontroller 1.
Embodiment 2, there is power line carrier communication and the circuit of electric energy quality monitoring function, wherein: inductance coil L1 with
The coil ratio of inductance coil L3 is 1:1；The coil ratio of inductance coil L1 and inductance coil L2 is 10:1.Remaining is with real
Execute example 1.
Embodiment 3, there is power line carrier communication and the circuit of electric energy quality monitoring function, wherein: microcontroller 1 is placed
In a box 4；Thermo-electric generation sheet 2 it is provided with on the outer wall of box 4；Box 4 be internally provided with temperature sensor 3.Its
Remaining with embodiment 1.
Embodiment 4, there is power line carrier communication and the circuit of electric energy quality monitoring function, wherein: wave filter Filter
And it is provided with signal amplifier between AFE (analog front end) AFE.Remaining is with embodiment 1.
Operation principle: by inductance coil L1, inductance coil L3；Again after electric capacity C4 and electric capacity C5, on the one hand 220V,
50Hz ac signal can be isolated, and additionally the signal less than tens kHz also can attenuated (specifically the most relevant with capacitance).Quilt
The signal isolated enters baseband processor by wave filter Filter, amplifier and AFE (analog front end) AFE, demodulates useful letter
Number, finally return to microcontroller 1.Equally, microcontroller 1 controls baseband processor and generates signal, passes through AFE (analog front end)
AFE, amplifier, then deliver to couple circuit, finally it is coupled into electric lines of force；Voltage signal acquisition is by coupling coil, is coupled out
22V voltage signal, then by the dividing potential drop (value of R1/R2 is 10K Ω level) of resistance R1, resistance R2, be responsible for voltage signal
It is down in the input voltage range of analog-digital converter (ADC)；It is delivered to the Л type low pass filtered that electric capacity C1, C2 and inductance L4 are constituted again
In wave circuit, can limit the high-frequency signal by this circuit by the value of regulation electric capacity and inductance, purpose is removed wherein exactly
High-frequency Interference (general remove higher than 50 subharmonic part, i.e. 20kHz)；Diode D1, primarily to anti-lightning strike and instantaneous
High voltage surge and the impact of pulse, limit the voltage magnitude on circuit, it is ensured that will not damage below because of overtension
Circuit；The input impedance matching circuit that last voltage signal is constituted via resistance R3, R4 and electric capacity C3, is delivered to microcontroller 1,
Wherein the value of R3/R4 is tens Ω levels.
Existing low-voltage power line carrier communication module generally comprises coupling circuit, AFE (analog front end), baseband processor and micro-control
Device processed.After needing the carrier signal sent to modulate in baseband processor, through by digital to analog converter, filter circuit and merit
Put the AFE (analog front end) of composition, then by the coupling circuit being made up of bonder, isolation capacitance, be injected in electric lines of force.Work as reception
During carrier signal, signal leads to overcoupled circuits and extracts from electric lines of force, and circuit, configurable gain are amplified after filtering
Device and the AFE (analog front end) of analog to digital conversion circuit composition, output is demodulated to baseband processor, and then restores reception data.
The protocol conversion between carrier telecommunication and other Peripheral Interfaces is here responsible for by microcontroller.Whole low-voltage power
Line carrier communication module is to be parallel in 220V electric lines of force.This patent is by the coupling circuit in the original circuit of multiplexing and microcontroller
Device, it is achieved expand out electric energy quality monitoring function based on low-voltage power line carrier communication module.
Claims (4)
1. there is power line carrier communication and the circuit of electric energy quality monitoring function, including: inductance coil L1, live wire L, zero line N,
Inductance coil L2, resistance R1, resistance R2, electric capacity C1, inductance coil L4, electric capacity C2, diode D1, diode D2, resistance R3, electricity
Hold C3, microcontroller, baseband processor, AFE (analog front end) AFE, wave filter Filter, electric capacity C4, electric capacity C5, inductance coil L3；Its
It is characterised by: the two ends of inductance coil L1 are connected with live wire L, zero line N respectively；The side of inductance coil L1 is respectively arranged with one
An inductance coil L2 and inductance coil L3；One end of inductance coil L2 is connected with one end of resistance R1, the other end of resistance R1
It is connected with one end of resistance R2；The other end ground connection of resistance R2；The remaining one end of inductance coil L2 and the earth terminal with resistance R2
It is connected；Resistance R2 is in parallel with electric capacity C1；One end of electric capacity C1 is connected by one end of inductance coil L4 and electric capacity C2；Electric capacity C1 remains
Under one end remaining with electric capacity C2, one end be connected；One end of electric capacity C2 is connected by one end of resistance R3 and electric capacity C3；Electric capacity
The other end of C2 is connected by resistance R4 one end remaining with electric capacity C3；The two ends of electric capacity C3 the most respectively with microcontroller phase
Even；The left end of resistance R3 respectively with the positive pole of diode D1, the negative pole of diode D2 is connected；The negative pole of diode D1 and one
The power supply of 3.3 volts is connected；The plus earth of diode D2；The negative pole of diode D2 is connected with the positive pole of diode D1；Inductor wire
The two ends of circle L3 are connected with wave filter Filter with electric capacity C5 by electric capacity C4 respectively；Wave filter Filter and AFE (analog front end) AFE
It is connected；AFE (analog front end) AFE is connected with baseband processor；Baseband processor is connected with microcontroller.
The circuit with power line carrier communication and electric energy quality monitoring function the most according to claim 1, its feature exists
In: the coil ratio of inductance coil L1 and inductance coil L3 is 1:1；The coil ratio of inductance coil L1 and inductance coil L2
For 10:1.
The circuit with power line carrier communication and electric energy quality monitoring function the most according to claim 1, its feature exists
In: microcontroller is placed in a box；Thermo-electric generation sheet it is provided with on the outer wall of box；Box be internally provided with temperature
Sensor.
The circuit with power line carrier communication and electric energy quality monitoring function the most according to claim 1, its feature exists
In: it is provided with signal amplifier between wave filter Filter and AFE (analog front end) AFE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620868912.5U CN205880091U (en) | 2016-08-11 | 2016-08-11 | Circuit with power line carrier communication and electric energy quality monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620868912.5U CN205880091U (en) | 2016-08-11 | 2016-08-11 | Circuit with power line carrier communication and electric energy quality monitoring function |
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| Publication Number | Publication Date |
|---|---|
| CN205880091U true CN205880091U (en) | 2017-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620868912.5U Active CN205880091U (en) | 2016-08-11 | 2016-08-11 | Circuit with power line carrier communication and electric energy quality monitoring function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107274655A (en) * | 2017-07-25 | 2017-10-20 | 南京新联电子股份有限公司 | A kind of narrowband carrier communication module for power network channel monitoring |
| CN114670696A (en) * | 2021-06-22 | 2022-06-28 | 北京新能源汽车股份有限公司 | Charging control method and device, charging pile and electric vehicle |
-
2016
- 2016-08-11 CN CN201620868912.5U patent/CN205880091U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107274655A (en) * | 2017-07-25 | 2017-10-20 | 南京新联电子股份有限公司 | A kind of narrowband carrier communication module for power network channel monitoring |
| CN114670696A (en) * | 2021-06-22 | 2022-06-28 | 北京新能源汽车股份有限公司 | Charging control method and device, charging pile and electric vehicle |
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