CN106100128B - Monitoring device is isolated in active power distribution network intelligent terminal accumulator - Google Patents
Monitoring device is isolated in active power distribution network intelligent terminal accumulator Download PDFInfo
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- CN106100128B CN106100128B CN201610598664.1A CN201610598664A CN106100128B CN 106100128 B CN106100128 B CN 106100128B CN 201610598664 A CN201610598664 A CN 201610598664A CN 106100128 B CN106100128 B CN 106100128B
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 62
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 230000001052 transient effect Effects 0.000 claims abstract description 19
- 238000005070 sampling Methods 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 11
- 230000001629 suppression Effects 0.000 claims description 14
- 230000009466 transformation Effects 0.000 claims description 4
- 238000002955 isolation Methods 0.000 abstract description 14
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 230000008054 signal transmission Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000009514 concussion Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
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- H02J13/0006—
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/248—UPS systems or standby or emergency generators
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Emergency Protection Circuit Devices (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention provides a kind of active power distribution network intelligent terminal accumulator isolation monitoring device, including signal input protection module, signal-isolated transmission module, signal output protection module and the signal sampling processing module being sequentially connected in series；The core devices of signal-isolated transmission module are the transformer equipped with 2 primary side windings and 2 vice-side windings；The present invention uses transformers as realizing carrier, borrowing synchronizing signal driving source of the monitored battery feed as signal transmission for signal transmission isolation；Anti-interference requirement is tested to reach surge and fast transient by increasing protection circuit at input signal end and transformer secondary, has the characteristics that simple in structure, cost is relatively low and monitoring accuracy is higher when using.
Description
Technical field
The present invention relates to active power distribution network intelligent terminals to monitor field, and in particular to a kind of active power distribution network intelligent terminal stores
Monitoring device is isolated in battery.
Background technology
Accumulator in active power distribution network intelligent terminal is carry when having a power failure to intelligence as backup power supply
The effects that terminal and Operation switch are powered.For the reliability of power grid, it is necessary to by the way that corresponding device is arranged to active power distribution network
The accumulator status of intelligent terminal is monitored.
It is traditionally used for there are two classes to the device that active power distribution network intelligent terminal accumulator is monitored：First, pressure/frequency turns
Change class device：, by the way that voltage signal is converted into frequency signal using voltage-frequency conversion chip, frequency signal passes through high speed photo coupling for it
Isolation is transmitted to CPU samplings；Such device shortcoming is because the precision that voltage is converted into frequency is limited, and causes sampling precision relatively low, together
When due to frequency signal is ceaselessly counted occupy cpu resource it is more, cost is higher.It is adopted second, carrying out AD using front end CPU
Sample communicates serial ports by isolation and sampled signal is transferred to host CPU；Such device is disadvantageous in that, front-end sampling CPU easily by
To interference, also being difficult to meet the EMC such as fast wink is anti-interference, surge is anti-interference experiments on the basis of a large amount of protection circuits are increased will
It asks, simultaneously because sampling CPU carries out serial communication with host CPU, occupies 1 road serial line interface of host CPU, it is more to natively needing
The active power distribution network intelligent terminal of road serial ports causes hardware resource configuration difficult, while it is higher to will also result in peripheral circuit cost.
Invention content
The purpose of the present invention is：Asked a question for background technology, provide it is a kind of it is simple in structure, cost is relatively low, using change
Depressor is isolated as signal transmission to be realized carrier, borrows synchronizing signal excitation of the monitored battery feed as signal transmission
Anti-interference requirement is tested in source by increasing protection circuit at input signal end and transformer secondary to reach surge and fast transient
And monitoring accuracy higher active power distribution network intelligent terminal accumulator isolation monitoring device when using.
The technical scheme is that：The active power distribution network intelligent terminal accumulator isolation monitoring device of the present invention, including
Signal sampling processing module, above-mentioned signal sampling processing module are equipped with first, second sampled signal input；Its design feature
It is：Further include signal input protection module, signal-isolated transmission module and signal output protection module；
Above-mentioned signal input protection module be equipped with the first and second signal input parts, the first and second signal output ends with
And big ground terminal；Signal-isolated transmission module is equipped with first, second signal input part and first, second signal output end；Signal is defeated
Go out protection module equipped with first, second signal input part and first, second sampled signal output terminal；
First and second signal input parts of signal-isolated transmission module respectively with signal input protection module first and
Second signal output terminal corresponds to electrical connection；First and second signal input parts of signal output protection module respectively with signal isolation
First and second signal output ends of transmission module correspond to electrical connection；First and second sampled signals of signal sampling processing module
Input terminal electrical connection corresponding with the first and second sampled signal output terminals of signal output protection module respectively；In use, signal
Input the first and second signal input parts electrical connection corresponding with the anode and cathode of monitored accumulator of protection module；Signal
Input the earth termination the earth of protection module.
Further embodiment is：Above-mentioned signal-isolated transmission module includes resistance R1 to R6 totally 6 resistance, triode Q1
To Q4 totally 4 triodes and transformer T；Transformer T is equipped with the first primary side winding, the second primary side winding, the first vice-side winding
With the second vice-side winding；The first primary side winding of transformer T be equipped with first end terminals N1, the second end terminals N2 and in
Between terminals N3；The second primary side winding of transformer T be equipped with first end terminals N4, the second end terminals N5 and in indirectly
Line end N6；The first vice-side winding of transformer T is equipped with first end terminals S1, the second end terminals S2 and intermediate connection end
S3；The second vice-side winding of transformer T is equipped with first end terminals S4, the second end terminals S5 and intermediate connection end S6；
The intermediate connection end N3 of one end of resistance R3 and the first primary side winding of transformer T forms a common junction when conllinear, should
Common junction is the first signal input part of above-mentioned signal-isolated transmission module；One end of resistance R4, triode Q1 are penetrated
The emitter-base bandgap grading of pole and triode Q2 form a common junction when conllinear, which is above-mentioned signal-isolated transmission
The second signal input terminal of module；Second primary side winding of the other end of resistance R3, the other end of resistance R4 and transformer T
Intermediate connection end N6 is conllinear；The collector of triode Q1 and the first end terminals N1 electricity of the first primary side winding of transformer T
Connection；It is electrically connected after the base stage series resistor R1 of triode Q1 with the second end terminals N5 of the second primary side winding of transformer T
It connects；The collector of triode Q2 is electrically connected with the second end terminals N2 of the first primary side winding of transformer T；Triode Q2's
It is electrically connected after base stage series resistor R2 with the first end terminals N4 of the second primary side winding of transformer T；The collection of triode Q3
Electrode is electrically connected with the first end terminals S1 of the first vice-side winding of transformer T；The collector of triode Q4 and transformer T
The first vice-side winding the second end terminals S2 electrical connection；The intermediate connection end S3 of the first vice-side winding of transformer T is
The first signal output end for above-mentioned signal-isolated transmission module；After the base stage series resistor R5 of triode Q3 with transformer T
The second vice-side winding the second end terminals S5 electrical connection；With transformer T's after the base stage series resistor R6 of triode Q4
The first end terminals S4 electrical connections of second vice-side winding；The emitter-base bandgap grading of triode Q3, the emitter-base bandgap grading of triode Q4 and transformer T
The intermediate connection end S6 of the second vice-side winding form a common junction when conllinear, which is above-mentioned signal
The second signal output terminal of isolated transmission module.
Further embodiment is：Above-mentioned signal input protection module include fuse F1, varistor RV1, inductance L1,
TVS Transient Suppression Diodes D1, capacitance CF1, capacitance C1 and capacitance C2；One end of fuse F1 is above-mentioned signal input
First signal input part of protection module；One end of the other end of fuse F1, one end of varistor RV1 and inductance L1 is total to
Line；The other end of inductance L1, one end of capacitance C1, one end of TVS Transient Suppression Diodes D1 and capacitance C2 one end because altogether
Line and form a common junction, which is the first signal output end of above-mentioned signal input protection module；Pressure
The other end of quick resistance RV1, one end of capacitance CF1, the other end of capacitance C1, TVS Transient Suppression Diodes D1 the other end with
And the other end of capacitance C2 forms a common junction when conllinear, which is above-mentioned signal input protection module
Second signal output terminal, while the second signal input terminal of protection module is also inputted for above-mentioned signal；Capacitance CF1's is another
End is the big ground terminal of above-mentioned signal input protection module.
Further embodiment is：Above-mentioned signal output protection module includes TVS Transient Suppression Diodes D2 and resistance R7；
One end of TVS Transient Suppression Diodes D2 and one end of resistance R7 form a common junction when conllinear, which is
The first signal input part for above-mentioned signal output protection module；The other end of resistance R7 is above-mentioned signal output protection
First sampled signal output terminal of module；The other end of TVS Transient Suppression Diodes D2 is above-mentioned signal output protection mould
The second signal input terminal of block, while be also the second sampled signal output terminal of above-mentioned signal output protection module.
The present invention has positive effect：（1）The active power distribution network intelligent terminal accumulator isolation monitoring device of the present invention,
It carries out signal conversion to realize the monitoring to battery tension state by using transformer, compared to using in the prior art
The device of transmission is isolated in direct AD sampled signals again, and circuit structure of the invention is more simple；Simultaneously because the no-load voltage ratio of transformer
For stable parameter, so as to ensure the linearity of sampled signal, compared to using pressure/frequency conversion plan in the prior art
Device has better precision, and can save the reduction voltage circuit of an output terminal；（2）The active power distribution network intelligence of the present invention is eventually
Hold accumulator isolation monitoring device, by directly using the voltage for the accumulator being monitored as autoexcitation signal control circuit
Concussion transmission, an isolated power supply module can be saved；（3）The active power distribution network intelligent terminal accumulator isolation prison of the present invention
Device is surveyed, CPU is not needed to and constantly interrupts counting and occupy CPU ports, compared to device of the prior art, energy of the present invention
Enough occupancies for effectively saving CPU processor, reduce the hardware resource requirements of CPU, make its cost performance higher.
Description of the drawings
Fig. 1 is the circuit structure schematic block diagram of the present invention；
Fig. 2 is the electrical schematic diagram of other 3 modules in addition to signal sampling processing module in Fig. 1.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
（Embodiment 1）
See Fig. 1, the active power distribution network intelligent terminal accumulator isolation monitoring device of the present embodiment is mainly inputted by signal
Protection module, signal-isolated transmission module, signal output protection module and signal sampling processing module composition.
Signal input protection module is equipped with the first and second signal input parts, the first and second signal output ends and the earth
End；Signal-isolated transmission module is equipped with first, second signal input part and first, second signal output end；Signal output protection
Module is equipped with first, second signal input part and first, second sampled signal output terminal；Signal sampling processing module is equipped with the
First, the second sampled signal input.
First and second signal input parts of signal-isolated transmission module respectively with signal input protection module first and
Second signal output terminal corresponds to electrical connection；First and second signal input parts of signal output protection module respectively with signal isolation
First and second signal output ends of transmission module correspond to electrical connection；First and second sampled signals of signal sampling processing module
Input terminal electrical connection corresponding with the first and second sampled signal output terminals of signal output protection module respectively；In use, signal
Input the first and second signal input parts electrical connection corresponding with the anode and cathode of monitored accumulator of protection module；Signal
Input the earth termination the earth of protection module.
See Fig. 2, signal input protection module mainly inhibits two by fuse F1, varistor RV1, inductance L1, TVS transient state
Pole pipe D1, capacitance CF1, capacitance C1 and capacitance C2 compositions.One end of fuse F1 is aforementioned signal input protection module
The first signal input part, be electrically connected when using with the anode BAT+ of accumulator being monitored；The other end of fuse F1, pressure
One end of quick resistance RV1 and one end of inductance L1 are conllinear；The other end of inductance L1, one end of capacitance C1, TVS transient states inhibit two
One end of pole pipe D1 and one end of capacitance C2 form a common junction when conllinear, which is aforementioned signal
Input the first signal output end of protection module；The other end of varistor RV1, one end of capacitance CF1, capacitance C1 it is another
End, the other end of TVS Transient Suppression Diodes D1 and capacitance C2 the other end form a common junction, the public affairs when conllinear
Contact is the second signal output terminal of aforementioned signal input protection module altogether, while is also aforementioned signal input protection mould
The second signal input terminal of block, cathode BAT- when using with monitored accumulator are electrically connected；The other end of capacitance CF1 is
The big ground terminal of protection module is inputted for aforementioned signal, using when connect the earth.
Signal-isolated transmission module mainly by resistance R1 to R6 totally 6 resistance, triode Q1 to Q4 totally 4 triodes and
Transformer T is formed；Transformer T is equipped with the first primary side winding, the second primary side winding, the first vice-side winding and the second vice-side winding；
The first primary side winding of transformer T is equipped with first end terminals N1, the second end terminals N2 and intermediate connection end N3；Transformation
The second primary side winding of device T is equipped with first end terminals N4, the second end terminals N5 and intermediate connection end N6；Transformer T
The first vice-side winding be equipped with first end terminals S1, the second end terminals S2 and intermediate connection end S3；The of transformer T
Two vice-side windings are equipped with first end terminals S4, the second end terminals S5 and intermediate connection end S6.One end of resistance R3 with
The intermediate connection end N3 of the first primary side winding of transformer T forms a common junction when conllinear, before which is
First signal input part of the signal-isolated transmission module stated；One end of resistance R4, the emitter-base bandgap grading of triode Q1 and triode Q2
Emitter-base bandgap grading form a common junction when conllinear, which is the second signal of aforementioned signal-isolated transmission module
Input terminal；The intermediate connection end N6 of second primary side winding of the other end of resistance R3, the other end of resistance R4 and transformer T is total to
Line；The collector of triode Q1 is electrically connected with the first end terminals N1 of the first primary side winding of transformer T；Triode Q1's
It is electrically connected after base stage series resistor R1 with the second end terminals N5 of the second primary side winding of transformer T；The collection of triode Q2
Electrode is electrically connected with the second end terminals N2 of the first primary side winding of transformer T；The base stage series resistor R2 of triode Q2
It is electrically connected afterwards with the first end terminals N4 of the second primary side winding of transformer T；The collector of triode Q3 is with transformer T's
The first end terminals S1 electrical connections of first vice-side winding；The collector of triode Q4 and the first vice-side winding of transformer T
The second end terminals S2 electrical connection；The intermediate connection end S3 of the first vice-side winding of transformer T be aforementioned signal every
The first signal output end from transmission module；The second vice-side winding after the base stage series resistor R5 of triode Q3 with transformer T
The second end terminals S5 electrical connection；After the base stage series resistor R6 of triode Q4 with the second vice-side winding of transformer T
First end terminals S4 is electrically connected；Second vice-side winding of the emitter-base bandgap grading of triode Q3, the emitter-base bandgap grading of triode Q4 and transformer T
Intermediate connection end S6 form a common junction when conllinear, which is aforementioned signal-isolated transmission module
Second signal output terminal.
Signal output protection module is mainly made of TVS Transient Suppression Diodes D2 and resistance R7；TVS transient states inhibit two poles
One end of pipe D2 and one end of resistance R7 form a common junction when conllinear, which is aforementioned signal output
First signal input part of protection module；The other end of resistance R7 is the first sampling letter of aforementioned signal output protection module
Number output terminal；The other end of TVS Transient Suppression Diodes D2 is the second signal input of aforementioned signal output protection module
End, while be also the second sampled signal output terminal of aforementioned signal output protection module.
The active power distribution network intelligent terminal accumulator isolation monitoring device of the present embodiment, when in use, inputs a signal into
First and second signal input parts of protection module are electrically connected respectively with the anode BAT+ of monitored accumulator and cathode BAT-；
Signal input protection module has 3 grades of safeguard functions, and the first order is made of fuse F1 and varistor RV1, fuse F1
Main protection rear class short circuit, if because monitored accumulator rear class short circuit is than relatively hazardous state；Varistor RV1 is to thunder
It hits surging signal and carries out by-pass filtration；The low-pass filter circuit that the second level is made of inductance L1 and C1, further filter high-frequency letter
Number；The third level is made of TVS Transient Suppression Diodes D1, and to surge DM EMI signal, further filtering and pincers are pressed；Electricity simultaneously
Hold CF1 and the earth is filled into common-mode signal.
The voltage signal that signal-isolated transmission module inputs a signal into protection module transmission passes through triode Q1 and triode
The alternating of Q2 is by voltage signal modulation into square wave, and by transformer T coupled transfers, the square-wave signal of transformer secondary passes through three poles
Pipe Q3 and triode Q4 complete rectification under control of the synchronization signal, are finally modulated into direct current signal and are sent to signal output protection
Module.
For inhibiting the high voltage of coupling, resistance R7 is used for the TVS Transient Suppression Diodes D2 of signal output protection module
Current limliting, the sampled signal that signal-isolated transmission module is sent are last transmitted to after signal output protection module at signal sampling
Reason module is sampled and is handled and exports corresponding monitoring result, so as to fulfill to active power distribution network intelligent terminal accumulator
Status monitoring.
From the foregoing, it can be seen that the active power distribution network intelligent terminal accumulator isolation monitoring device of the present embodiment, by using
Transformer T carries out signal conversion to realize the monitoring to battery tension state, compared in the prior art using direct AD
The device of transmission is isolated in sampled signal again, and circuit structure is more simple；Simultaneously because the no-load voltage ratio of transformer is stable parameter, from
And can ensure the linearity of sampled signal, have preferably compared to the device of pressure/frequency conversion plan is used in the prior art
Precision, and the reduction voltage circuit of an output terminal can be saved；It passes through directly by the use of the voltage of monitored accumulator as certainly
The concussion transmission of pumping signal control circuit, can save an isolated power supply module；Meanwhile compared to of the prior art
Device does not need to CPU and constantly interrupts counting and occupy CPU ports, can effectively save the occupancy of CPU processor, subtract
The hardware resource requirements of few CPU, make its cost performance higher.
Above example is the explanation rather than limitation of the present invention to the specific embodiment of the present invention, related technology
The technical staff in field without departing from the spirit and scope of the present invention, can also make various transformation and variation and obtain
To corresponding equivalent technical solution, therefore all equivalent technical solutions should be included into the patent protection model of the present invention
It encloses.
Claims (1)
1. monitoring device, including signal sampling processing module, the letter is isolated in a kind of active power distribution network intelligent terminal accumulator
Number sampling processing module is equipped with first, second sampled signal input；It is characterized in that：Further include signal input protection module,
Signal-isolated transmission module and signal output protection module；
Described signal input protection module is equipped with the first and second signal input parts, the first and second signal output ends and big
Ground terminal；Signal-isolated transmission module is equipped with first, second signal input part and first, second signal output end；Signal output is protected
It protects module and is equipped with first, second signal input part and first, second sampled signal output terminal；
First and second signal input parts of signal-isolated transmission module input the first and second of protection module with signal respectively
Signal output end corresponds to electrical connection；First and second signal input parts of signal output protection module respectively with signal-isolated transmission
First and second signal output ends of module correspond to electrical connection；The first and second sampled signals input of signal sampling processing module
End electrical connection corresponding with the first and second sampled signal output terminals of signal output protection module respectively；In use, signal inputs
The electrical connection corresponding with the anode and cathode of monitored accumulator of first and second signal input parts of protection module；Signal inputs
The earth termination the earth of protection module；
The signal-isolated transmission module include resistance R1 to R6 totally 6 resistance, triode Q1 to Q4 totally 4 triodes and
Transformer T；Transformer T is equipped with the first primary side winding, the second primary side winding, the first vice-side winding and the second vice-side winding；Transformation
The first primary side winding of device T is equipped with first end terminals N1, the second end terminals N2 and intermediate connection end N3；Transformer T
The second primary side winding be equipped with first end terminals N4, the second end terminals N5 and intermediate connection end N6；The of transformer T
One vice-side winding is equipped with first end terminals S1, the second end terminals S2 and intermediate connection end S3；The second of transformer T is secondary
Side winding is equipped with first end terminals S4, the second end terminals S5 and intermediate connection end S6；One end of resistance R3 and transformation
The intermediate connection end N3 of the first primary side winding of device T forms the first common junction when conllinear, and the first common junction is described
Signal-isolated transmission module the first signal input part；One end of resistance R4, the emitter-base bandgap grading of triode Q1 and triode Q2
Emitter-base bandgap grading forms the second common junction when conllinear, and the second common junction is the second signal of the signal-isolated transmission module
Input terminal；The intermediate connection end N6 of second primary side winding of the other end of resistance R3, the other end of resistance R4 and transformer T is total to
Line；The collector of triode Q1 is electrically connected with the first end terminals N1 of the first primary side winding of transformer T；Triode Q1's
It is electrically connected after base stage series resistor R1 with the second end terminals N5 of the second primary side winding of transformer T；The collection of triode Q2
Electrode is electrically connected with the second end terminals N2 of the first primary side winding of transformer T；The base stage series resistor R2 of triode Q2
It is electrically connected afterwards with the first end terminals N4 of the second primary side winding of transformer T；The collector of triode Q3 is with transformer T's
The first end terminals S1 electrical connections of first vice-side winding；The collector of triode Q4 and the first vice-side winding of transformer T
The second end terminals S2 electrical connection；The intermediate connection end S3 of the first vice-side winding of transformer T be the signal every
The first signal output end from transmission module；The second vice-side winding after the base stage series resistor R5 of triode Q3 with transformer T
The second end terminals S5 electrical connection；After the base stage series resistor R6 of triode Q4 with the second vice-side winding of transformer T
First end terminals S4 is electrically connected；Second vice-side winding of the emitter-base bandgap grading of triode Q3, the emitter-base bandgap grading of triode Q4 and transformer T
Intermediate connection end S6 form third common junction when conllinear, third common junction is the signal-isolated transmission module
Second signal output terminal；
The signal output protection module includes TVS Transient Suppression Diodes D2 and resistance R7；TVS Transient Suppression Diodes D2
One end of one end and resistance R7 form the 4th common junction when conllinear, the 4th common junction is that the signal output is protected
Protect the first signal input part of module；The other end of resistance R7 is the first sampled signal of the signal output protection module
Output terminal；The other end of TVS Transient Suppression Diodes D2 is the second signal input terminal of the signal output protection module,
Also it is the second sampled signal output terminal of the signal output protection module simultaneously.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810305632.7A CN108832714A (en) | 2016-07-27 | 2016-07-27 | A kind of active power distribution network intelligent terminal battery isolation monitoring device |
| CN201610598664.1A CN106100128B (en) | 2016-07-27 | 2016-07-27 | Monitoring device is isolated in active power distribution network intelligent terminal accumulator |
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| Application Number | Priority Date | Filing Date | Title |
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| JP7334508B2 (en) * | 2019-07-04 | 2023-08-29 | スミダコーポレーション株式会社 | DC/DC converter |
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| CN108832714A (en) | 2018-11-16 |
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