CN204231035U - A kind of power supply based on ultra-high-tension power transmission line is got can circuit - Google Patents
A kind of power supply based on ultra-high-tension power transmission line is got can circuit Download PDFInfo
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- CN204231035U CN204231035U CN201420681350.4U CN201420681350U CN204231035U CN 204231035 U CN204231035 U CN 204231035U CN 201420681350 U CN201420681350 U CN 201420681350U CN 204231035 U CN204231035 U CN 204231035U
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Abstract
The utility model relates to a kind of power supply based on ultra-high-tension power transmission line and gets energy circuit, and described circuit comprises its main circuit; Described main circuit is connected with storage capacitor and power supply chip respectively; Described main circuit comprises rectification filtering module.Circuit of the present utility model makes it under current energy-taking and voltage get the different operating mode of energy two kinds, can work, for control circuit provides stable direct-current working volts on normal reliable ground.Voltage is got to separate with current energy-taking and is worked alone, and two parts circuit receives energy storage below, filter circuit respectively by diode.
Description
Technical field:
The utility model relates to a kind of power supply and gets energy circuit, more specifically relates to a kind of power supply based on ultra-high-tension power transmission line and gets energy circuit.
Background technology:
Along with the high speed development of national economy, the demand of all trades and professions to electric power is increasing, also more and more higher to the requirement of the quality of power supply (stability, continuity etc.), thus the fail safe of ultra-high-tension power transmission line and stability seem particularly important, therefore be starved of and realize on line real-time monitoring on ultra-high-tension power transmission line, to ensure the normal safe stable operation of ultra-high-tension power transmission line, this is also an urgent demand of current intelligent grid development.
Along with the development of technology, the electric equipment be operated on ultra-high-tension power transmission line gets more and more, as power circuit on-line measuring device, line facility anti-theft device, inspection robot, hot line robot, the filthy on-line monitoring of high-tension line etc., because most transmission line is remote, be difficult to way routinely and solve power supply supply problem, thus the power supply of these equipment generally adopts solar powered, but the impact of this mode climate condition is comparatively large, and lacks long-term non-maintaining ability.In addition, also have laser power supply to have also been obtained application on electronic current transducer and Active Optical Current Transformers, but this type of power supply is also not suitable for working in the wild.The most promising supply power mode extracts electric energy from overhead power transmission conducting wire, and on wire, energy coil got by suit, by wire power conversion to secondary side, realizes isolated power supply.
Therefore propose that a kind of power supply based on ultra-high-tension power transmission line gets can circuit, this circuit stability is reliable, has very strong adaptive capacity, possesses short circuit and impulse current self-protection, can be back-end device and provide reliable power supply transmission line curent change.Performance characteristics induction energy fetching, high efficient and reliable, Maintenance free; Totally enclosed type designs, and adapt to adverse circumstances, easy for installation, wiring is simple; Stable, stable output can be kept when circuit curent change; Output voltage stabilization, ripple is little; This high-tension line CT get can scheme achieve within the scope of wire normal current, to provide stable output, teaching display stand protection under short circuit and impulse current, the stable operation of prolonged low grade fever consumption.Overcome solar powered weak point, become the extraordinary power supply plan solving a built-in unit energy supply difficult problem.
Utility model content:
The purpose of this utility model is to provide a kind of power supply based on ultra-high-tension power transmission line and gets energy circuit, and this circuit, under current energy-taking and voltage get the mode of energy, can work, for control circuit provides stable direct-current working volts on normal reliable ground.
For achieving the above object, the utility model by the following technical solutions: a kind of power supply based on ultra-high-tension power transmission line gets energy circuit, and described circuit comprises its main circuit; Described main circuit is connected with storage capacitor and power supply chip respectively; Described main circuit comprises rectification filtering module.
A kind of power supply based on ultra-high-tension power transmission line that the utility model provides gets energy circuit, and described rectification filtering module comprises rectifier bridge; The input of described rectifier bridge is provided with magnetic bead; The output reverse parallel connection voltage stabilizing didoe of described rectifier bridge.
A kind of power supply based on ultra-high-tension power transmission line that the utility model provides gets energy circuit, described storage capacitor described rectifier bridge in parallel; Described storage capacitor comprises electric capacity C24, C25 and C25-2 in parallel; Series resistance R11 and inductance after three electric capacity of parallel connection; In parallel with described rectifier bridge by series diode at the input of described energy-storage module.
The utility model provide another preferably a kind of power supply based on ultra-high-tension power transmission line get can circuit, described supply module comprises power supply chip; The branch road of the signal input voltage pin Vin of described power supply chip described storage capacitor in parallel, electric capacity C5, electric capacity C6, electric capacity C7 and the resistance R11 be cascaded and resistance R12; The enable pin En of described power supply chip is connected between described resistance R11 and resistance R12; The start-up study of described power supply chip controls/low trigger pin SS/TR connection electric capacity C8; Timing resistor/Clock Signal pin RT/CLK contact resistance the R13 of described power supply chip; The current compensation of described power supply chip controls pin COMP shunt capacitance C9 and electric capacity C10; Described electric capacity C10 series resistance R14; The phase voltage pin PH shunt regulator diode 1 of described power supply chip, electric capacity C12; The secondary drive annunciator overcurrent protection pin BOOT of described power supply chip is connected electric capacity C11 with between described pin PH; At the positive pole of described diode D29 and the positive interpolar series inductance L14 of electric capacity C12; The voltage monitoring pin VSENSE contact resistance R15 of described power supply chip; Described resistance R16 is provided with at described pin VSENSE and the positive interpolar of electric capacity C12; All described pins are all connected with the common port of described power supply chip.
Another preferably a kind of power supply based on ultra-high-tension power transmission line that the utility model provides gets energy circuit, and described main circuit also comprises the driver module be connected with described rectification filtering module and the voltage comparison module be connected with described driver module.
Another preferably a kind of power supply based on ultra-high-tension power transmission line that the utility model provides gets energy circuit, and described voltage comparison module comprises voltage comparator; The reverse input end series resistance R1 of described comparator and the resistance R2 be connected with common port; The positive input cascode reference voltages module of described comparator, supply power voltage module, resistance R3 and the resistance R4 be connected with described resistance R1 input; Feedback branch 1 and feedback branch 2 is provided with at the output of described comparator and described positive input.
Another preferably a kind of power supply based on ultra-high-tension power transmission line that the utility model provides is got can circuit, and described supply power voltage module comprises resistance R5 and the supply power voltage voltage stabilizing didoe parallel with one another of connecting with described resistance R5 and electric capacity C1 branch road; Described reference voltage module comprises the resistance R6 be connected with described supply power voltage module input and the reference voltage voltage stabilizing didoe parallel with one another of connecting with described resistance R6 and electric capacity C2 branch road; Described feedback branch 1 comprises resistance R7 and the diode 1 of forward series connection; Described feedback branch 2 comprises resistance R8 and the diode 2 of differential concatenation; The forward supply voltage series capacitance C3 of described comparator.
Another preferably a kind of power supply based on ultra-high-tension power transmission line that the utility model provides gets energy circuit, and described driver module comprises gate pole driver; The reverse input end of described gate pole driver is connected with described comparator output terminal; The positive input of described gate pole driver is connected the electric capacity C4 be connected with the common port of described gate pole driver; The output series resistance R9 of described gate pole driver and the resistance R10 be connected with described common port; At the reverse input end of the described gate pole driver pull-up resistor that be provided with voltage in parallel with between described comparator output terminal.
Another preferably a kind of power supply based on ultra-high-tension power transmission line that the utility model provides gets energy circuit, and described resistance R9 output connects the grid of the field effect transistor of the N raceway groove in parallel with described rectifier bridge; The source electrode of described field effect transistor is connected with described common port.
With immediate prior art ratio, the utility model provides technical scheme to have following excellent effect
1, circuit of the present utility model can ensure to get the efficient of energy mode, reliably;
2, the utility model is simultaneously under voltage gets the energy operating mode different with current energy-taking two kinds, can work, for control circuit provides stable direct-current working volts on normal reliable ground;
3, the utility model adopts comparator, and number of elements is few, and it is high that reliability can build protective circuit than discrete component;
4, the utility model possesses short circuit and impulse current self-protection, can be follow up device and provides reliable power supply;
5, the utility model circuit performance feature induction energy fetching, high efficient and reliable, Maintenance free; Totally enclosed type designs, and adapt to adverse circumstances, easy for installation, wiring is simple; Stable, stable output can be kept when circuit curent change;
6, circuit output voltage of the present utility model is stablized, and ripple is little.
Accompanying drawing explanation
Fig. 1 is the utility model circuit structure block diagram;
Fig. 2 is the utility model draw-out power supply main circuit diagram;
Fig. 3 is the utility model draw-out power supply storage capacitor figure;
Fig. 4 is the utility model draw-out power supply DC circuit supply module figure.
Embodiment
Below in conjunction with embodiment, utility model is described in further detail.
Embodiment 1:
As Figure 1-4, a kind of power supply based on ultra-high-tension power transmission line of utility model of this example gets energy circuit, and described circuit comprises its main circuit; Described main circuit is connected with storage capacitor and power supply chip respectively; Described main circuit comprises rectification filtering module.
Described rectification filtering module comprises rectifier bridge; The input of described rectifier bridge is provided with magnetic bead; The output reverse parallel connection voltage stabilizing didoe TVS333 of described rectifier bridge and resistance R226.
Described storage capacitor described field effect transistor in parallel; Described storage capacitor comprises electric capacity C24, C25 and C25-2 in parallel; Series resistance R81 and inductance L 3 after three electric capacity of parallel connection; In parallel with described rectifier bridge by series diode D7 at the input of described energy-storage module; The forward voltage 60V of described storage capacitor, earth terminal G5V.
Described supply module comprises power supply chip U62 TPS54140A; The branch road of the signal input voltage pin Vin of described power supply chip described storage capacitor in parallel, electric capacity C5, electric capacity C6, electric capacity C7 and the resistance R93 be cascaded and resistance R111; Described signal input voltage is that 30V is identical with rectification filtering module output voltage; The enable pin En of described power supply chip is connected between described resistance R111 and resistance R93; The start-up study of described power supply chip controls/low trigger pin SS/TR connection electric capacity C8; Timing resistor/Clock Signal pin RT/CLK contact resistance the R112 of described power supply chip; The current compensation of described power supply chip controls pin COMP shunt capacitance C9 and electric capacity C10; Described electric capacity C10 series resistance R113; The phase voltage pin PH shunt regulator diode D29 of described power supply chip, electric capacity C12; The secondary drive annunciator overcurrent protection pin BOOT of described power supply chip is connected electric capacity C11 with between described pin PH; At the positive pole of described diode D29 and the positive interpolar series inductance L14 of electric capacity C12; The voltage monitoring pin VSENSE contact resistance R130 of described power supply chip; Described resistance R120 is provided with at described pin VSENSE and the positive interpolar of electric capacity C12; All described pins are all connected with the public terminal GND 5V of described power supply chip.Described pin PH voltage is 5V.
Overvoltage protection design is added in draw-out power supply scheme.Due on transmission line once in a while with short circuit current and impulse current.Particularly lightning impulse current due to action time short, the circuit of draw-out power supply can be entered, the safety of power supply is threatened.Impulse current makes the output induction transient high voltages of getting energy coil; Because impulse current amplitude is high, change is fast, so adopt transient voltage to restrain diode, if the TVS333 in Fig. 2 is as surge protection device, thus effectively protects electronic devices and components.
Draw-out power supply scheme has overcurrent protection design equally.Secondary side current can form certain potentials at control circuit input, if this current potential is too high, will damage control circuit.Therefore transient voltage is set restrains diode and as TVS333 in Fig. 2 input current potential suppressed and separately establish metal-oxide-semiconductor branch road to work in coordination with earial drainage.
A lot of power system high tension power line on-line monitoring system have employed GSM/GPRS data transfer mode, and GSM/GPRS module is large in data transmit-receive instantaneous power, and electric current can up to hundreds of milliampere, and under ideal case, operating current is only 10 ~ 20mA.Output power of power supply is very little at low currents to adopt induction energy fetching mode, provides enough high-power powers when deficiency thinks that data transmit-receive transmits.This draw-out power supply circuit is provided with the storage capacitor of three 22uF/160V, bulky capacitor C24 on board, and C25, C25-2, constitute the energy-storing capacitor module in Fig. 1.Add ultracapacitor in the design of this power circuit, solve the problem of moment high-power power supply, circuit is simply easy to safeguard.
Described circuit comprises current energy-taking operating mode and voltage gets energy operating mode; Under current energy-taking operating mode, distributed serial reactor secondary side winding is direct short-circuit, one can be utilized to get and can extract the energy being greater than 10W by current transformer, generate original direct voltage Vin1 after rectifying and wave-filtering.The alternating current CT1 of CT secondary side, CT2 ' change direct voltage Vin1 into through rectifier bridge RS2507 RB1 rectification.Rectifier bridge RB1 and magnetic bead FB6, FB7 constitutes rectification circuit, generates direct voltage Vin1 from the rectification of CT secondary.
Under voltage gets energy operating mode, the secondary side winding of described circuit input end meets heavy load inductance XL, less cannot the utilization of secondary side current is got and can be got energy by current transformer, the high voltage at XL two ends now can be utilized to extract the energy being greater than 10W, generate original direct voltage Vin2 after rectification and filtering.
Merged by two-way direct voltage Vin1 and Vin2, when merging exists secondary side voltage Vin1 ', corresponding described diode current flow, makes voltage export; When merging exists secondary side voltage Vin2 ', corresponding described diode current flow, makes voltage export; Supply stabilized voltage power supply chip, the direct voltage of stable output is to control protection electric circuit plate.During considering two kinds of operating modes switchings in design, power circuit can stably work.Accompanying drawing 4 draw-out power supply DC circuit supply module is for being transformed into the direct current 5V supply power voltage needed for logical circuit by direct voltage Vin.U62 TPS54140A is used power supply chip, the advantages such as this TI power supply chip has working stability, and heat-sinking capability is good.
Described main circuit also comprises the driver module be connected with described rectification filtering module and the voltage comparison module be connected with described driver module.Further, voltage can be selected to get the operating mode of energy and current energy-taking for demand;
Described voltage comparison module comprises voltage comparator LM393; The reverse input end series resistance R222 of described comparator and the resistance R221 be connected with public terminal GND; The positive input cascode reference voltages module of described comparator, supply power voltage module, resistance R225 and the resistance R219 be connected with described resistance R222 input; Feedback branch 1 and feedback branch 2 is provided with at the output of described comparator and described positive input.
Described supply power voltage module comprises resistance R224 and the supply power voltage voltage stabilizing didoe TVS111 parallel with one another that connects with described resistance R224 and electric capacity C1 branch road; Described reference voltage module comprises the resistance R223 be connected with described supply power voltage module input and the reference voltage voltage stabilizing didoe TVS222 parallel with one another connected with described resistance R223 and electric capacity C2 branch road; Described feedback branch 1 comprises resistance R85 and the diode D6 of forward series connection; Described feedback branch 2 comprises resistance R86 and the diode D7 of differential concatenation; The forward 16V supply voltage series capacitance C3 of described comparator and earth-free; The input of described comparator is all connected with common port with reverse electrical source voltage.
Described driver module comprises gate pole driver U69 UCC27517; The reverse input end of described gate pole driver is connected with described comparator output terminal; The positive input of described gate pole driver is connected the electric capacity C4 be connected with the common port of described gate pole driver; Described gate pole driver supply voltage 16V is connected with its positive input, the output series resistance R114 of described gate pole driver and the resistance R115 be connected with described common port; At the reverse input end of the described gate pole driver pull-up resistor R220 that be provided with voltage in parallel with between described comparator output terminal.
Described resistance R114 output connects the grid of the field effect transistor metal-oxide-semiconductor Q45 IRF540N of the N raceway groove in parallel with described rectifier bridge; The source electrode of described field effect transistor is connected with described common port.
When described two-way direct voltage Vin1 and Vin2 exists, make gate pole driver action conducting field effect transistor by comparator, thus export larger voltage; Supply stabilized voltage power supply chip, the direct voltage of stable output is to control protection electric circuit plate.
The comparator of power circuit have employed LM393.Supply power voltage obtains by with a 16V voltage-stabiliser tube (TVS1111 in accompanying drawing 2).The reference voltage 6.2V voltage-stabiliser tube (TVS222 in accompanying drawing 2) of comparator obtains.
By the resistance of adjusting resistance, the high and low breakover voltage value of hysteresis comparator can be finely tuned.
Adopt comparator, number of elements is few, and it is high that reliability can build protective circuit than discrete component.
The voltage of simulation result 60V point is stabilized between 55-65V.
Current energy-taking power circuit is undertaken getting energy by coupling transformer.Current energy-taking power circuit utilizes solenoid to receive the electric current of the primary side progress of disease from bus, uses by giving control protection electric circuit after rectification, filtering, voltage stabilizing and conversion.Draw-out power supply circuit part will ensure can provide stable enough energy for back-end circuit when bus current changes, it is made to have stable voltage to export, also to ensure that iron core is unlikely to enter saturation condition too early simultaneously, its temperature is remained in normal range (NR).
The selection of getting energy coil is the important step of current energy-taking power circuit design.As far as possible the selection principle of core material reduce starting current, improves energy transfer efficiency, reduce the wastage.In circuit design of the present utility model, transformer iron core adopts nanocrystalline magnetic material iron core.Compared with silicon steel sheet permeability magnetic material, the advantage of nanocrystalline magnetic material iron core is; Saturation induction density is good, and permeability is large, and light structure, low price, can long-time stable work under the environment of-55 to 130 DEG C.Be particularly suitable for the operational environment that field etc. is severe.
The magnetic flux density of ferromagnetic material and magnetic field intensity are non-linear relations.Tradition permeability magnetic material (as silicon steel sheet) although saturation flux density higher, initial permeability is lower, and the initial permeability of modern nanometer magnetocrystalline material improves decades of times.Choose novel magnetocrystalline material in scheme and make the iron core getting energy coil, and the design of application overcurrent-overvoltage starts and all energy normal table work under heavy current impact state at small area analysis with assurance device.
Current energy-taking power circuit under current energy-taking and voltage get the mode of energy, can work, for control circuit provides stable direct-current working volts on normal reliable ground.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; although those of ordinary skill in the field are to be understood that with reference to above-described embodiment: still can modify to embodiment of the present utility model or equivalent replacement; these do not depart from any amendment of the utility model spirit and scope or equivalent replacement, are all applying within the claims of the present utility model awaited the reply.
Claims (8)
1. the power supply based on ultra-high-tension power transmission line gets an energy circuit, and described circuit comprises its main circuit; It is characterized in that: described main circuit is connected with storage capacitor and power supply chip respectively; Described main circuit comprises rectification filtering module;
Described rectification filtering module comprises rectifier bridge; The input of described rectifier bridge is provided with magnetic bead; The output reverse parallel connection voltage stabilizing didoe of described rectifier bridge.
2. a kind of power supply based on ultra-high-tension power transmission line gets energy circuit as claimed in claim 1, it is characterized in that: described storage capacitor described rectifier bridge in parallel; Described storage capacitor comprises electric capacity C24, C25 and C25-2 in parallel; Series resistance R11 and inductance after three electric capacity of parallel connection; In parallel with described rectifier bridge by series diode at the input of described energy-storage module.
3. a kind of power supply based on ultra-high-tension power transmission line gets energy circuit as claimed in claim 2, it is characterized in that: described supply module comprises power supply chip; The branch road of the signal input voltage pin Vin of described power supply chip described storage capacitor in parallel, electric capacity C5, electric capacity C6, electric capacity C7 and the resistance R11 be cascaded and resistance R12; The enable pin En of described power supply chip is connected between described resistance R11 and resistance R12; The start-up study of described power supply chip controls/low trigger pin SS/TR connection electric capacity C8; Timing resistor/Clock Signal pin RT/CLK contact resistance the R13 of described power supply chip; The current compensation of described power supply chip controls pin COMP shunt capacitance C9 and electric capacity C10; Described electric capacity C10 series resistance R14; The phase voltage pin PH shunt regulator diode 1 of described power supply chip, electric capacity C12; The secondary drive annunciator overcurrent protection pin BOOT of described power supply chip is connected electric capacity C11 with between described pin PH; At the positive pole of described diode D29 and the positive interpolar series inductance L14 of electric capacity C12; The voltage monitoring pin VSENSE contact resistance R15 of described power supply chip; Described resistance R16 is provided with at described pin VSENSE and the positive interpolar of electric capacity C12; All described pins are all connected with the common port of described power supply chip.
4. a kind of power supply based on ultra-high-tension power transmission line as described in claim 2-3 any one gets energy circuit, it is characterized in that: described main circuit also comprises the driver module be connected with described rectification filtering module and the voltage comparison module be connected with described driver module.
5. a kind of power supply based on ultra-high-tension power transmission line gets energy circuit as claimed in claim 4, it is characterized in that: described voltage comparison module comprises voltage comparator; The reverse input end series resistance R1 of described comparator and the resistance R2 be connected with common port; The positive input cascode reference voltages module of described comparator, supply power voltage module, resistance R3 and the resistance R4 be connected with described resistance R1 input; Feedback branch 1 and feedback branch 2 is provided with at the output of described comparator and described positive input.
6. as claimed in claim 5 a kind of power supply based on ultra-high-tension power transmission line get can circuit, it is characterized in that: described supply power voltage module comprises resistance R5 and the supply power voltage voltage stabilizing didoe parallel with one another of connecting with described resistance R5 and electric capacity C1 branch road; Described reference voltage module comprises the resistance R6 be connected with described supply power voltage module input and the reference voltage voltage stabilizing didoe parallel with one another of connecting with described resistance R6 and electric capacity C2 branch road; Described feedback branch 1 comprises resistance R7 and the diode 1 of forward series connection; Described feedback branch 2 comprises resistance R8 and the diode 2 of differential concatenation; The forward supply voltage series capacitance C3 of described comparator.
7. a kind of power supply based on ultra-high-tension power transmission line gets energy circuit as claimed in claim 6, it is characterized in that: described driver module comprises gate pole driver; The reverse input end of described gate pole driver is connected with described comparator output terminal; The positive input of described gate pole driver is connected the electric capacity C4 be connected with the common port of described gate pole driver; The output series resistance R9 of described gate pole driver and the resistance R10 be connected with described common port; At the reverse input end of the described gate pole driver pull-up resistor that be provided with voltage in parallel with between described comparator output terminal.
8. a kind of power supply based on ultra-high-tension power transmission line gets energy circuit as claimed in claim 7, it is characterized in that: described resistance R9 output connects the grid of the field effect transistor of the N raceway groove in parallel with described rectifier bridge; The source electrode of described field effect transistor is connected with described common port.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681350.4U CN204231035U (en) | 2014-11-06 | 2014-11-06 | A kind of power supply based on ultra-high-tension power transmission line is got can circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681350.4U CN204231035U (en) | 2014-11-06 | 2014-11-06 | A kind of power supply based on ultra-high-tension power transmission line is got can circuit |
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| Publication Number | Publication Date |
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| CN204231035U true CN204231035U (en) | 2015-03-25 |
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| CN201420681350.4U Expired - Fee Related CN204231035U (en) | 2014-11-06 | 2014-11-06 | A kind of power supply based on ultra-high-tension power transmission line is got can circuit |
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| Country | Link |
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| CN (1) | CN204231035U (en) |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170526 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: China Electric Prime Technology Co., Ltd. Patentee after: State Grid Corporation of China Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: State Grid Smart Grid Institute Patentee before: State Grid Corporation of China Co-patentee before: China Electric Prime Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20181106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |