CN104460455B - Electric power line monitoring sampling reference frequency conversion circuit with power circuit - Google Patents
Electric power line monitoring sampling reference frequency conversion circuit with power circuit Download PDFInfo
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- CN104460455B CN104460455B CN201410747770.2A CN201410747770A CN104460455B CN 104460455 B CN104460455 B CN 104460455B CN 201410747770 A CN201410747770 A CN 201410747770A CN 104460455 B CN104460455 B CN 104460455B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
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Abstract
The invention provides an electric power line monitoring sampling reference frequency conversion circuit with a power circuit. The electric power line monitoring sampling reference frequency conversion circuit comprises a sampling input circuit, a reference signal setting circuit, a frequency conversion processing circuit and the power circuit. The frequency conversion signal output end of the sampling input circuit is connected with the signal input end of the frequency conversion processing circuit. The signal output end of the frequency conversion processing circuit is connected with the analog-digital conversion signal input end of a central processing unit. The reference voltage output end of the reference signal setting circuit is connected with the reference voltage input end of the sampling input circuit. The reference signal output end of the reference signal setting circuit is connected with the reference signal input end of the frequency conversion processing circuit. The output end of the power circuit is connected with the power supply input end of the central processing unit.
Description
Technical field
The present invention relates to electronic circuit field, more particularly to a kind of power monitoring circuit sample reference with power circuit
Frequency-conversion circuit.
Background technology
Today's society, national grid coverage rate is generally improved, and the production and living for giving people bring great convenience, in electricity
While net coverage rate is improved, the monitoring system to safe operation of electric network and stabilization is not lifted timely, even
Some power monitoring circuit equipment are have developed, its service life is short, and saltus step is serious, it is impossible to overvoltage protection, filtering can not be prevented
Interference, so causing power monitoring circuit error, it is impossible to accurately power circuit problem is judged, so needing people in the art badly
Member solves corresponding technical problem.
The content of the invention
It is contemplated that at least solving technical problem present in prior art, especially innovatively propose a kind of with electricity
The power monitoring circuit sample reference frequency-conversion circuit of source circuit.
In order to realize above-mentioned purpose of the invention, adopted the invention provides a kind of power monitoring circuit with power circuit
Sample reference frequency translation circuit, itself it is critical that including：Circuit of sampling input, reference signal initialization circuit, frequency conversion process
Circuit, power circuit,
Circuit of sampling input signal frequency conversion signal output part rate of connections conversion process circuit signal input, the frequency
Conversion process circuit signal output end connects central processing unit analog-to-digital conversion signal input part, and reference signal initialization circuit is with reference to electricity
Pressure output end connection circuit of sampling input reference voltage input terminal, the reference signal initialization circuit reference signal output end connection
Frequency conversion process circuit reference signal input part, the power circuit output end connects central processing unit energization input；
The power circuit includes：First voltage-stablizer, the second inductance, the 20th resistance, the 19th electric capacity, the 9th electric capacity,
Power end connects the first voltage-stablizer input, and first output end of voltage stabilizer connects second inductance one end, described
The second inductance other end connects the 20th resistance one end, and the 20th resistance other end connects the 19th electric capacity one end and the 9th
Electric capacity one end, the 20th resistance other end is also connected with central processing unit energization input, the 19th electric capacity other end
It is grounded with the 9th electric capacity other end.
Above-mentioned technical proposal has the beneficial effect that：At circuit of sampling input, reference signal initialization circuit, frequency transformation
Reason circuit coordinated, it is ensured that the transmission of analog input signal.
The described power monitoring circuit sample reference frequency-conversion circuit with power circuit, it is preferred that the sampling
Input circuit includes：14th resistance, the 19th resistance, the 4th amplifier, the 6th high tension silicon rectifier,
Electric power signal analog quantity first input end connects the 14th resistance one end, the 14th resistance other end connection the
Six high tension silicon rectifier first input ends, the input of electric power signal analog quantity second connects the 6th high tension silicon rectifier second and is input into
End, the output end of the 6th high tension silicon rectifier the 3rd connects the 19th resistance one end, the 19th resistance other end connection
The output end of 6th high tension silicon rectifier the 4th, described 19th resistance one end is also connected with the 4th amplifier anode, and the described 4th puts
Big device negative pole ground connection；
The circuit of sampling input also includes：It is 34th resistance, the 39th resistance, the 14th amplifier, the 7th high
Pressure silicon rectifier,
Electric power signal analog quantity first input end connects the 34th resistance one end, and the 34th resistance other end connects
The 7th high tension silicon rectifier first input end is connect, the input of electric power signal analog quantity second connects the 7th high tension silicon rectifier second
Input, the output end of the 7th high tension silicon rectifier the 3rd connects the 39th resistance one end, and the 39th resistance is another
One end connects the output end of the 7th high tension silicon rectifier the 4th, and described 39th resistance one end is being also connected with the 14th amplifier just
Pole, the 14th amplifier negative pole ground connection.
Above-mentioned technical proposal has the beneficial effect that：Circuit of sampling input stable signal transmission reliability.
The described power monitoring circuit sample reference frequency-conversion circuit with power circuit, it is preferred that the reference
Signal initialization circuit includes：23rd resistance, the 24th resistance, the 25th resistance, the 26th resistance, the 15th
Pole pipe, the 5th electric capacity, the 11st electric capacity, the 13rd electric capacity, the 14th electric capacity, the 5th amplifier, the 6th amplifier,
Power end connects the 23rd resistance one end, and the 23rd resistance other end connects the 15th diode and bears
Pole, the 15th diode cathode ground connection, the 23rd resistance other end is also connected with the 5th electric capacity one end, the described 5th
The electric capacity other end connects the 25th resistance one end and ground connection, and the 25th resistance other end connects the 24th resistance one
End, the 24th resistance other end connects the 5th electric capacity one end, and described 24th resistance one end is also connected with the 11st electricity
Hold one end, the 11st electric capacity other end ground connection, described 11st electric capacity one end is also connected with the 13rd electric capacity one end, described the
The 13 electric capacity other ends are grounded, and described 24th resistance one end is also connected with the 26th resistance one end, the 26th electricity
The resistance other end connects the 14th electric capacity one end, and the 14th electric capacity other end is grounded, and described 13rd electric capacity one end is also connected with
5th amplifier anode and the 6th amplifier anode, the 5th amplifier negative pole connect the 5th amplifier out, and described the
Six amplifier negative poles connect the 6th amplifier out, and the 5th amplifier out connects the 6th high tension silicon rectifier the 4th
Output end, the 6th amplifier out connects the output end of the 7th high tension silicon rectifier the 4th.
Above-mentioned technical proposal has the beneficial effect that：Reference signal initialization circuit sets reference signal value, is transferred to sampling defeated
In entering circuit, there is provided reference signal value, central processing unit is transferred to for comparing output voltage.
The described power monitoring circuit sample reference frequency-conversion circuit with power circuit, it is preferred that the frequency
Conversion process circuit also includes：15th resistance, the 16th resistance, the 17th resistance, the 18th resistance, the 29th resistance,
27th resistance, the 30th resistance, the 11st diode, the 12nd diode, the 15th electric capacity, the first amplifier, second
Amplifier, the 3rd amplifier,
4th amplifier out connects the 15th resistance one end, and the 15th resistance other end connects second and puts respectively
Big device positive pole and the 16th resistance one end, the second amplifier negative pole connect the second amplifier out, and described second amplifies
Device output end connect the 29th resistance one end, the 29th resistance other end connect respectively the 11st diode cathode,
12nd diode cathode and the 15th electric capacity one end, the 11st diode cathode, the 12nd diode cathode and the tenth
After the connection of the five electric capacity other ends, the first amplifier negative pole is reconnected, first amplifier anode connects the 15th electric capacity one end,
First amplifier out connects the 30th resistance one end, and the 30th resistance other end connects power supply, described first
Amplifier out is also connected with central processing unit, the 11st diode cathode, the 12nd diode cathode and the 15th electricity
After holding other end connection, the 27th resistance one end is also connected with, it is defeated that the 27th resistance other end connects the 3rd amplifier
Go out end, the 3rd amplifier out is also connected with the 3rd amplifier negative pole, the electricity of the 3rd amplifier anode connection the 17th
One end after resistance and the 18th resistor coupled in parallel, the 17th resistance connects the 14th amplifier out.
Above-mentioned technical proposal has the beneficial effect that：Frequency conversion process circuit design circuit location wiring rationally, enters line frequency
Rate treatment can be separated with clock frequency.
The described power monitoring circuit sample reference frequency-conversion circuit with power circuit, it is preferred that the frequency
Conversion process circuit also includes：7th amplifier, the 8th amplifier, the 9th amplifier, the 21st resistance, the 22nd electricity
Resistance, the 28th resistance, the 13rd diode, the 14th diode, the 8th electric capacity,
14th amplifier out connects the 8th amplifier anode, and the 8th amplifier negative pole connects the 8th amplifier
Output end, the 8th amplifier out is also connected with the 22nd resistance one end, the 22nd resistance other end connection the tenth
Three diode cathodes, the 13rd diode cathode connects the 21st resistance one end and the 14th diode cathode respectively,
14th diode cathode connects the 13rd diode cathode and the 8th electric capacity one end, the 8th electric capacity other end connection
14th diode cathode and the 7th amplifier negative pole, described 8th electric capacity one end are also connected with the 7th amplifier anode, described
Seven amplifier outs connect the 28th resistance one end, and the 28th resistance other end connects power supply, the 21st electricity
The resistance other end connects the 9th amplifier out, and the 9th amplifier out is also connected with the 9th amplifier negative pole.
Above-mentioned technical proposal has the beneficial effect that：Frequency conversion process circuit design circuit location wiring rationally, enters line frequency
Rate treatment can be separated with clock frequency.
Additional aspect of the invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is power monitoring circuit sample reference frequency-conversion circuit general illustration of the present invention with power circuit；
Fig. 2 is power monitoring circuit sample reference frequency-conversion circuit On-off signal electricity of the present invention with power circuit
Road schematic diagram；
Fig. 3 is power monitoring circuit sample reference frequency-conversion circuit output switch parameter electricity of the present invention with power circuit
Road schematic diagram；
Fig. 4 is power monitoring circuit sample reference frequency-conversion circuit circuit of sampling input of the present invention with power circuit
Schematic diagram；
Fig. 5 is that power monitoring circuit sample reference frequency-conversion circuit reference signal of the present invention with power circuit sets
Circuit diagram；
Fig. 6 is power monitoring circuit sample reference frequency-conversion circuit frequency conversion process of the present invention with power circuit
Circuit diagram；
Fig. 7 is power monitoring circuit sample reference frequency-conversion circuit frequency conversion process of the present invention with power circuit
Circuit diagram；
Fig. 8 is that power monitoring circuit sample reference frequency-conversion circuit power circuit of the present invention with power circuit is illustrated
Figure；
Fig. 9 is that power monitoring circuit sample reference frequency-conversion circuit anti-jump loop of the present invention with power circuit is illustrated
Figure.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " longitudinal direction ", " transverse direction ", " on ", D score, "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward " are based on accompanying drawing institute
The orientation or position relationship for showing, are for only for ease of the description present invention and simplify description, rather than the dress for indicating or implying meaning
Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the invention
System.
In the description of the invention, unless otherwise prescribed with limit, it is necessary to explanation, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanically connect or electrical connection, or two connections of element internal, can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
As shown in figure 1, the invention provides a kind of power monitoring circuit sample reference frequency transformation with power circuit
Circuit, itself it is critical that including：Switching value input circuit, simulated measurement input circuit, switching value output circuit, alarm module, in
Central processor,
Switching value input circuit signal output part connects central processing unit on-off model input, the central processing unit
On-off model output end connecting valve amount output circuit signal input part, simulated measurement input circuit is connected by analog to digital conversion circuit
Connect central processing unit analog-to-digital conversion signal input part, the central processing unit display signal output part connection alarm module.
Above-mentioned technical proposal has the beneficial effect that：Electric power is transmitted by switching value input circuit and simulated measurement input circuit
The real-time power supply situation of circuit, it is ensured that power circuit steady operation, shape is used by alarm module real-time reminding custom power circuit
State, circuit design is reasonable, moderate cost.
As shown in Fig. 2 the described power monitoring circuit sample reference frequency-conversion circuit with power circuit, preferably
, the switching value input circuit includes：11st resistance, the 12nd resistance, the 13rd resistance, the 16th diode, first
Photoelectric coupled circuit,
On-off circuit one end connects the 11st resistance one end, and the 11st resistance other end connects the 12nd resistance one
End, the 12nd resistance other end connects the first photoelectric coupled circuit first input end, the input of the first photoelectric coupled circuit the 3rd
The 16th diode cathode is connected, the 16th diode cathode is also connected with power supply, the 16th diode cathode connection
The 12nd resistance other end, the output end of the first photoelectric coupled circuit the 6th connects power supply, and first photoelectric coupled circuit the 4th is exported
End connection central processing unit signal input part.
Above-mentioned technical proposal has the beneficial effect that：The switching value input circuit gathers On-off signal signal, it is ensured that letter
Number transmission stabilization.
As shown in figure 3, the described power monitoring circuit sample reference frequency-conversion circuit with power circuit, preferably
, the switching value output circuit includes：41st resistance, the second photoelectric coupled circuit, relay,
41st resistance one end connection central processing unit switching value output signal end, the 41st resistance other end
Connect the second photoelectric coupled circuit first input end, the input of the second photoelectric coupled circuit the 3rd connection ground, second photoelectric coupled circuit
6th output end connects relay normally-closed contact.
Above-mentioned technical proposal has the beneficial effect that：By central processing unit transmitting switch amount output signal, by switching value
Output circuit ensures the stability of transmission signal.
As shown in figs. 4-7, the described power monitoring circuit sample reference frequency-conversion circuit with power circuit, preferably
, the simulated measurement input circuit includes：Circuit of sampling input, reference signal initialization circuit, frequency conversion process circuit,
Circuit of sampling input signal frequency conversion signal output part rate of connections conversion process circuit signal input, the frequency
Conversion process circuit signal output end connects central processing unit analog-to-digital conversion signal input part, and reference signal initialization circuit is with reference to electricity
Pressure output end connection circuit of sampling input reference voltage input terminal, the reference signal initialization circuit reference signal output end connection
Frequency conversion process circuit reference signal input part.
Above-mentioned technical proposal has the beneficial effect that：At circuit of sampling input, reference signal initialization circuit, frequency transformation
Reason circuit coordinated, it is ensured that the transmission of analog input signal.
The described power monitoring circuit sample reference frequency-conversion circuit with power circuit, it is preferred that the sampling
Input circuit includes：14th resistance, the 19th resistance, the 4th amplifier, the 6th high tension silicon rectifier,
Electric power signal analog quantity first input end connects the 14th resistance one end, the 14th resistance other end connection the
Six high tension silicon rectifier first input ends, the input of electric power signal analog quantity second connects the 6th high tension silicon rectifier second and is input into
End, the output end of the 6th high tension silicon rectifier the 3rd connects the 19th resistance one end, the 19th resistance other end connection
The output end of 6th high tension silicon rectifier the 4th, described 19th resistance one end is also connected with the 4th amplifier anode, and the described 4th puts
Big device negative pole ground connection；
The circuit of sampling input also includes：It is 34th resistance, the 39th resistance, the 14th amplifier, the 7th high
Pressure silicon rectifier,
Electric power signal analog quantity first input end connects the 34th resistance one end, and the 34th resistance other end connects
The 7th high tension silicon rectifier first input end is connect, the input of electric power signal analog quantity second connects the 7th high tension silicon rectifier second
Input, the output end of the 7th high tension silicon rectifier the 3rd connects the 39th resistance one end, and the 39th resistance is another
One end connects the output end of the 7th high tension silicon rectifier the 4th, and described 39th resistance one end is being also connected with the 14th amplifier just
Pole, the 14th amplifier negative pole ground connection.
Above-mentioned technical proposal has the beneficial effect that：Circuit of sampling input stable signal transmission reliability.
The described power monitoring circuit sample reference frequency-conversion circuit with power circuit, it is preferred that the reference
Signal initialization circuit includes：23rd resistance, the 24th resistance, the 25th resistance, the 26th resistance, the 15th
Pole pipe, the 5th electric capacity, the 11st electric capacity, the 13rd electric capacity, the 14th electric capacity, the 5th amplifier, the 6th amplifier,
Power end connects the 23rd resistance one end, and the 23rd resistance other end connects the 15th diode and bears
Pole, the 15th diode cathode ground connection, the 23rd resistance other end is also connected with the 5th electric capacity one end, the described 5th
The electric capacity other end connects the 25th resistance one end and ground connection, and the 25th resistance other end connects the 24th resistance one
End, the 24th resistance other end connects the 5th electric capacity one end, and described 24th resistance one end is also connected with the 11st electricity
Hold one end, the 11st electric capacity other end ground connection, described 11st electric capacity one end is also connected with the 13rd electric capacity one end, described the
The 13 electric capacity other ends are grounded, and described 24th resistance one end is also connected with the 26th resistance one end, the 26th electricity
The resistance other end connects the 14th electric capacity one end, and the 14th electric capacity other end is grounded, and described 13rd electric capacity one end is also connected with
5th amplifier anode and the 6th amplifier anode, the 5th amplifier negative pole connect the 5th amplifier out, and described the
Six amplifier negative poles connect the 6th amplifier out, and the 5th amplifier out connects the 6th high tension silicon rectifier the 4th
Output end, the 6th amplifier out connects the output end of the 7th high tension silicon rectifier the 4th.
Above-mentioned technical proposal has the beneficial effect that：Reference signal initialization circuit sets reference signal value, is transferred to sampling defeated
In entering circuit, there is provided reference signal value, central processing unit is transferred to for comparing output voltage.
The described power monitoring circuit sample reference frequency-conversion circuit with power circuit, it is preferred that the frequency
Conversion process circuit also includes：15th resistance, the 16th resistance, the 17th resistance, the 18th resistance, the 29th resistance,
27th resistance, the 30th resistance, the 11st diode, the 12nd diode, the 15th electric capacity, the first amplifier, second
Amplifier, the 3rd amplifier,
4th amplifier out connects the 15th resistance one end, and the 15th resistance other end connects second and puts respectively
Big device positive pole and the 16th resistance one end, the second amplifier negative pole connect the second amplifier out, and described second amplifies
Device output end connect the 29th resistance one end, the 29th resistance other end connect respectively the 11st diode cathode,
12nd diode cathode and the 15th electric capacity one end, the 11st diode cathode, the 12nd diode cathode and the tenth
After the connection of the five electric capacity other ends, the first amplifier negative pole is reconnected, first amplifier anode connects the 15th electric capacity one end,
First amplifier out connects the 30th resistance one end, and the 30th resistance other end connects power supply, described first
Amplifier out is also connected with central processing unit, the 11st diode cathode, the 12nd diode cathode and the 15th electricity
After holding other end connection, the 27th resistance one end is also connected with, it is defeated that the 27th resistance other end connects the 3rd amplifier
Go out end, the 3rd amplifier out is also connected with the 3rd amplifier negative pole, the electricity of the 3rd amplifier anode connection the 17th
One end after resistance and the 18th resistor coupled in parallel, the 17th resistance connects the 14th amplifier out.
Above-mentioned technical proposal has the beneficial effect that：Frequency conversion process circuit design circuit location wiring rationally, enters line frequency
Rate treatment can be separated with clock frequency.
The described power monitoring circuit sample reference frequency-conversion circuit with power circuit, it is preferred that the frequency
Conversion process circuit also includes：7th amplifier, the 8th amplifier, the 9th amplifier, the 21st resistance, the 22nd electricity
Resistance, the 28th resistance, the 13rd diode, the 14th diode, the 8th electric capacity,
14th amplifier out connects the 8th amplifier anode, and the 8th amplifier negative pole connects the 8th amplifier
Output end, the 8th amplifier out is also connected with the 22nd resistance one end, the 22nd resistance other end connection the tenth
Three diode cathodes, the 13rd diode cathode connects the 21st resistance one end and the 14th diode cathode respectively,
14th diode cathode connects the 13rd diode cathode and the 8th electric capacity one end, the 8th electric capacity other end connection
14th diode cathode and the 7th amplifier negative pole, described 8th electric capacity one end are also connected with the 7th amplifier anode, described
Seven amplifier outs connect the 28th resistance one end, and the 28th resistance other end connects power supply, the 21st electricity
The resistance other end connects the 9th amplifier out, and the 9th amplifier out is also connected with the 9th amplifier negative pole.
Above-mentioned technical proposal has the beneficial effect that：Frequency conversion process circuit design circuit location wiring rationally, enters line frequency
Rate treatment can be separated with clock frequency.
As shown in figure 8, the described power monitoring circuit sample reference frequency-conversion circuit with power circuit, preferably
, also including power circuit, the power circuit output end connects central processing unit energization input；
The power circuit includes：First voltage-stablizer, the second inductance, the 20th resistance, the 19th electric capacity, the 9th electric capacity,
Power end connects the first voltage-stablizer input, and first output end of voltage stabilizer connects second inductance one end, described
The second inductance other end connects the 20th resistance one end, and the 20th resistance other end connects the 19th electric capacity one end and the 9th
Electric capacity one end, the 20th resistance other end is also connected with central processing unit energization input, the 19th electric capacity other end
It is grounded with the 9th electric capacity other end.
Above-mentioned technical proposal has the beneficial effect that：Power-supplying circuit provides the power supply output of central processing unit stabilization, electricity
Road is reasonable in design.
As shown in figure 9, the described power monitoring circuit sample reference frequency-conversion circuit with power circuit, preferably
, also including anti-jump loop, the anti-jump loop is connected with relay, and the anti-jump loop includes：First resistor, the second electricity
Resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance,
One relay, the second relay, the first diode, the second diode, the 3rd diode, the 4th diode, the 5th diode,
Six diodes, the 7th diode, the 8th diode, the 9th diode, the tenth diode, the first electric capacity, the second electric capacity,
First relay normally open contact connection first resistor one end, the first resistor other end connects second resistance one
End, second resistance other end connection 3rd resistor one end, the 3rd resistor other end connects the 4th resistance one end, the described 4th
The resistance other end connects the 9th resistance one end, and the 9th resistance other end is connecting the 4th diode cathode and the 6th diode just
Pole, the 4th resistance other end is also connected with the 3rd diode cathode and the 5th diode cathode, the connection of the first relay normally-closed contact
First diode cathode and first electric capacity one end, first diode cathode connect the first electric capacity other end, first electricity
Hold one end and be also connected with the 3rd diode cathode and the 4th diode cathode, the 5th diode cathode connects the 6th diode and bears
Pole, the 9th resistance other end is also connected with the tenth resistance other end；
Second relay normally open contact connects the 5th resistance one end, and the 5th resistance other end connects the 6th resistance one
End, the 6th resistance other end connects the 7th resistance one end, and the 7th resistance other end connects the 8th resistance one end, described
The 8th resistance other end connects the tenth resistance one end, and the tenth resistance other end connects the 8th diode cathode and the 12nd pole
Pipe positive pole, the second relay normally-closed contact connects the second diode cathode and second electric capacity one end, second diode
Negative pole connects the second electric capacity other end, and described second electric capacity one end is also connected with the 7th diode cathode and the 8th diode cathode,
7th diode cathode connects the tenth resistance one end and the 9th diode cathode, the 9th diode cathode connection respectively
Tenth diode cathode, the 8th diode cathode connects the tenth diode cathode, and the 8th diode cathode is also connected with
The tenth resistance other end.
Above-mentioned technical proposal has the beneficial effect that：Above-mentioned anti-jump loop AC/DC universal, adapts to different running environment, fits
Should be able to power it is strong, prevent from failing return in time because of the combined floodgate contact of controlling switch, and combined floodgate causes breaker on faulty line
Continuous conjunction is cut, while preventing from, because the breaker auxiliary node adjustment of trip(ping) circuit is improper or it is slow to conjugate, causing protection contact elder generation
Current interruption and burn.
The part being controlled above by central processing unit, is known to the skilled person technology.
First voltage-stablizer is preferably LM1117；
The preferred model MCP6002T of amplifier；
The preferred model LPC1768 of central processing unit.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
Can these embodiments be carried out with various changes, modification, replacement and modification in the case of departing from principle of the invention and objective, this
The scope of invention is limited by claim and its equivalent.
Claims (4)
1. a kind of power monitoring circuit sample reference frequency-conversion circuit with power circuit, it is characterised in that including：Sampling
Input circuit, reference signal initialization circuit, frequency conversion process circuit, power circuit,
Circuit of sampling input signal frequency conversion signal output part rate of connections conversion process circuit signal input, the frequency transformation
Process circuit signal output part connects central processing unit analog-to-digital conversion signal input part, and reference signal initialization circuit reference voltage is defeated
Go out end connection circuit of sampling input reference voltage input terminal, the reference signal initialization circuit reference signal output end rate of connections
Conversion process circuit reference signal input part, the power circuit output end connects central processing unit energization input；
The power circuit includes：First voltage-stablizer, the second inductance, the 20th resistance, the 19th electric capacity, the 9th electric capacity,
Power end connects the first voltage-stablizer input, and first output end of voltage stabilizer connects second inductance one end, described second
The inductance other end connects the 20th resistance one end, and the 20th resistance other end connects the 19th electric capacity one end and the 9th electric capacity
One end, the 20th resistance other end is also connected with central processing unit energization input, the 19th electric capacity other end and
The nine electric capacity other ends are grounded；
The circuit of sampling input includes：14th resistance, the 19th resistance, the 4th amplifier, the 6th high tension silicon rectifier,
Electric power signal analog quantity first input end connects the 14th resistance one end, and the 14th resistance other end connection the 6th is high
Pressure silicon rectifier first input end, the input of electric power signal analog quantity second connects the 6th the second input of high tension silicon rectifier,
The output end of 6th high tension silicon rectifier the 3rd connects the 19th resistance one end, the 19th resistance other end connection the 6th
The output end of high tension silicon rectifier the 4th, described 19th resistance one end is also connected with the 4th amplifier anode, the 4th amplifier
Negative pole is grounded；
The circuit of sampling input also includes：34th resistance, the 39th resistance, the 14th amplifier, the 7th high pressure silicon
Rectifier,
Electric power signal analog quantity first input end connects the 34th resistance one end, the 34th resistance other end connection the
Seven high tension silicon rectifier first input ends, the input of electric power signal analog quantity second connects the 7th high tension silicon rectifier second and is input into
End, the output end of the 7th high tension silicon rectifier the 3rd connects the 39th resistance one end, the 39th resistance other end
The output end of the 7th high tension silicon rectifier the 4th is connected, described 39th resistance one end is also connected with the 14th amplifier anode, institute
State the 14th amplifier negative pole ground connection；
The reference signal initialization circuit includes：23rd resistance, the 24th resistance, the 25th resistance, the 26th
Resistance, the 15th diode, the 5th electric capacity, the 11st electric capacity, the 13rd electric capacity, the 14th electric capacity, the 5th amplifier, the 6th are put
Big device,
Power end connects the 23rd resistance one end, and the 23rd resistance other end connects the 15th diode cathode, institute
The 15th diode cathode ground connection is stated, the 23rd resistance other end is also connected with the 5th electric capacity one end, the 5th electric capacity
The other end connects the 25th resistance one end and ground connection, and the 25th resistance other end connects the 24th resistance one end,
The 24th resistance other end connects the 5th electric capacity one end, and described 24th resistance one end is also connected with the 11st electric capacity one
End, the 11st electric capacity other end ground connection, described 11st electric capacity one end is also connected with the 13rd electric capacity one end, the described 13rd
The electric capacity other end is grounded, and described 24th resistance one end is also connected with the 26th resistance one end, and the 26th resistance is another
One end connects the 14th electric capacity one end, and the 14th electric capacity other end is grounded, and described 13rd electric capacity one end is also connected with the 5th
Amplifier anode and the 6th amplifier anode, the 5th amplifier negative pole connect the 5th amplifier out, and the described 6th puts
Big device negative pole connects the 6th amplifier out, and the 5th amplifier out connection the 6th high tension silicon rectifier the 4th is exported
End, the 6th amplifier out connects the output end of the 7th high tension silicon rectifier the 4th.
2. the power monitoring circuit sample reference frequency-conversion circuit with power circuit according to claim 1, it is special
Levy and be, the frequency conversion process circuit also includes：15th resistance, the 16th resistance, the 17th resistance, the 18th electricity
Resistance, the 29th resistance, the 27th resistance, the 30th resistance, the 11st diode, the 12nd diode, the 15th electric capacity,
First amplifier, the second amplifier, the 3rd amplifier,
4th amplifier out connects the 15th resistance one end, and the 15th resistance other end connects the second amplifier respectively
Positive pole and the 16th resistance one end, the second amplifier negative pole connect the second amplifier out, and second amplifier is defeated
Go out end the 29th resistance one end of connection, the 29th resistance other end connects the 11st diode cathode, the tenth respectively
Two diode cathodes and the 15th electric capacity one end, the 11st diode cathode, the 12nd diode cathode and the 15th electricity
After holding other end connection, the first amplifier negative pole is reconnected, first amplifier anode connects the 15th electric capacity one end, described
First amplifier out connects the 30th resistance one end, and the 30th resistance other end connects power supply, and described first amplifies
Device output end is also connected with central processing unit, and the 11st diode cathode, the 12nd diode cathode and the 15th electric capacity are another
After the connection of one end, the 27th resistance one end is also connected with, the 27th resistance other end connects the 3rd amplifier out,
3rd amplifier out is also connected with the 3rd amplifier negative pole, and the 3rd amplifier anode connects the 17th resistance and the
One end after 18 resistor coupled in parallel, the 17th resistance connects the 14th amplifier out.
3. the power monitoring circuit sample reference frequency-conversion circuit with power circuit according to claim 1, it is special
Levy and be, the frequency conversion process circuit also includes：7th amplifier, the 8th amplifier, the 9th amplifier, the 21st electricity
Resistance, the 22nd resistance, the 28th resistance, the 13rd diode, the 14th diode, the 8th electric capacity,
14th amplifier out connects the 8th amplifier anode, and the 8th amplifier negative pole connects the output of the 8th amplifier
End, the 8th amplifier out is also connected with the 22nd resistance one end, the 22nd resistance other end connection the 13rd
Pole pipe positive pole, the 13rd diode cathode connects the 21st resistance one end and the 14th diode cathode respectively, described
14th diode cathode connects the 13rd diode cathode and the 8th electric capacity one end, the 8th electric capacity other end connection the tenth
Four diode cathodes and the 7th amplifier negative pole, described 8th electric capacity one end are also connected with the 7th amplifier anode, and the described 7th puts
Big device output end connects the 28th resistance one end, and the 28th resistance other end connects power supply, and the 21st resistance is another
One end connects the 9th amplifier out, and the 9th amplifier out is also connected with the 9th amplifier negative pole.
4. the power monitoring circuit sample reference frequency-conversion circuit with power circuit according to claim 1, it is special
Levy and be, first voltage-stablizer is LM1117.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271618A (en) * | 2008-02-21 | 2008-09-24 | 武汉华瑞电力科技股份有限公司 | High-speed data acquisition method and data acquisition card for electric power monitoring |
| CN201615924U (en) * | 2010-01-29 | 2010-10-27 | 浙江欣大继电器有限公司 | Current voltage sampling circuit |
| CN203859486U (en) * | 2014-03-28 | 2014-10-01 | 北京京桥热电有限责任公司 | Switch electrical anti-tripping circuit |
| CN204302713U (en) * | 2014-12-08 | 2015-04-29 | 重庆跃达电力设备有限公司 | With the power monitoring circuit sample reference frequency-conversion circuit of power circuit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080167754A1 (en) * | 2007-01-05 | 2008-07-10 | Mcallister Sarah C | Ozone and other molecules sensors for electric fault detection |
| CN101710687A (en) * | 2009-11-09 | 2010-05-19 | 天津理工大学 | Short circuit detection and protection system based on DSP |
| CN201876484U (en) * | 2010-11-05 | 2011-06-22 | 重庆市电力公司綦南供电局 | High-voltage signal conditioning and data acquisition device |
| CN202309032U (en) * | 2011-10-17 | 2012-07-04 | 深圳市华力特电气股份有限公司 | Intelligent protection device of transformer |
| CN102506909A (en) * | 2011-11-10 | 2012-06-20 | 中国西电电气股份有限公司 | 4-20mA special analogue acquisition module |
| CN102539912B (en) * | 2011-12-21 | 2014-10-08 | 上海市电力公司 | Mains frequency detection method for load monitor |
| JP2014050117A (en) * | 2012-08-29 | 2014-03-17 | Daihen Corp | Alarm module, switch slave station and switch monitoring system |
| CN104090177A (en) * | 2014-06-11 | 2014-10-08 | 国家电网公司 | Power network operation data intelligent test analyzer |
-
2014
- 2014-12-08 CN CN201410747770.2A patent/CN104460455B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271618A (en) * | 2008-02-21 | 2008-09-24 | 武汉华瑞电力科技股份有限公司 | High-speed data acquisition method and data acquisition card for electric power monitoring |
| CN201615924U (en) * | 2010-01-29 | 2010-10-27 | 浙江欣大继电器有限公司 | Current voltage sampling circuit |
| CN203859486U (en) * | 2014-03-28 | 2014-10-01 | 北京京桥热电有限责任公司 | Switch electrical anti-tripping circuit |
| CN204302713U (en) * | 2014-12-08 | 2015-04-29 | 重庆跃达电力设备有限公司 | With the power monitoring circuit sample reference frequency-conversion circuit of power circuit |
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