CN1684419A - Intelligent remote feeding network communication power - Google Patents
Intelligent remote feeding network communication power Download PDFInfo
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- CN1684419A CN1684419A CN 200410087888 CN200410087888A CN1684419A CN 1684419 A CN1684419 A CN 1684419A CN 200410087888 CN200410087888 CN 200410087888 CN 200410087888 A CN200410087888 A CN 200410087888A CN 1684419 A CN1684419 A CN 1684419A
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Abstract
This invented intelligent remote supply network communication power supply includes an input supply circuit connected with the stand-by circuit, a high frequency conversion circuit converting the low DC voltage provided to the power supply to high frequency DC voltage and a DC and network input-output circuit rectifying and filtering the voltage by high frequency and outputting it to a remote end.
Description
Technical field
The present invention relates to a kind of intelligent remote feeding network communication power, relate in particular to a kind of remote feeding network communication power that carries out offering the power consumption equipment of far-end after the high frequency DC converting and can transmit network signal and audio signal simultaneously.
Background technology
Along with the development of mechanics of communication, the unit that need keep power supply is more and more at present, and for example communication systems such as base station, radar, airport called station all need continual power supply to keep communication work; Therefore, when external power source interrupted because of a variety of causes, as having a power failure, unimpeded for keeping in communication, base station or other communications services must start stand-by power supply.Stand-by power supply is generally an accumulator plant or a Blast Furnace Top Gas Recovery Turbine Unit (TRT), as then often needing inverter circuit for accumulator plant, and inverter circuit failure rate height, cost increases, and transmission signals need be laid private cable, and construction is difficulty very.And start stand-by power supply and safeguard and need the staff to operate to the equipment location that power supply trouble occurs, will expend lot of manpower and material resources like this, and safeguard inconvenience.
The remote feeding network communication power of prior art often need be provided with a communication line separately outside the normal power supply circuit, the use private cable communicates, and in supply line, only provide the operating voltage of far-end power consumption equipment, need the staff that the power consumption equipment of far-end is controlled, therefore, prior art remote feeding network communication power reliability is low, and the cost height is realized stand-by power supply operation wasting manpower and material resources.
Therefore, obviously there is defective in prior art, and awaits improving and development.
Summary of the invention
The object of the present invention is to provide a kind of intelligent remote feeding network communication power, by the high frequency conversion circuit in the circuit is set, accumulator DC can be pressed and be converted to the power supply of high-frequency electrical urged distal power consumption equipment, and carry out testing circuit by the CPU that is arranged in the circuit, while transmission network signal and direct voltage in same circuit, the stand-by power supply reliability height that provides reduces cost, and realizes the power supply of Intelligent Measurement and far-end communication power supply.
Technical scheme of the present invention is as follows:
A kind of intelligent remote feeding network communication power, it comprises an input supply circuit, connects stand-by power supply; Wherein, described intelligent remote feeding network communication power also comprises a high frequency conversion circuit, and it is high-voltage dc voltage that the low voltage and direct current of described input supply power input is compressed into capable high frequency conversion; With a direct current and network imput output circuit, described voltage behind high frequency conversion is carried out after rectification and the filtering to the far-end output voltage.
Described intelligent remote feeding network communication power; wherein; described intelligent remote feeding network communication power also comprises a control and a protective circuit and an accessory power supply; described accessory power supply is to described control and protective circuit power supply; described control and protective circuit are monitored output voltage, and control the shutoff of described high frequency conversion circuit.
Described intelligent remote feeding network communication power wherein, comprises a common-mode filter in the described input supply circuit, and it comprises a pair of common mode capacitance place in circuit, the interchange noise signal in the filtering filtering input voltage.
Described intelligent remote feeding network communication power wherein, also is provided with at least one polypropylene high frequency capacitance and carries out filtering in the described input supply circuit.
Described intelligent remote feeding network communication power wherein, also is provided with a control circuit in the described circuit, be provided with a voltage comparator circuit in this control circuit and be used for far-end voltage is carried out the automated power compensation.
A kind of intelligent remote feeding network communication power provided by the present invention, owing to adopted to the high frequency conversion circuit of direct voltage and by a CPU and controlled, after can detecting far-end power consumption equipment and supply line, the direct current of storage battery is transformed to the high frequency voltage transmission, thereby increased the reliability of far-end power supply, can transmission of audio in the time of far-end carry high frequency voltage in the supply line of the present invention etc. network signal, adopt former supply line, adopt concentrated inversion again to each substation transmission voltage and network signal by the center machine station, it is the green energy-conservation of consumption reduction high-tech electronic product of 21 century.It is 5% to 10% of original equipment cost.Economic benefit and market effect are considerable especially.
Description of drawings
In the accompanying drawing,
Fig. 1 is the circuit block diagram of a preferred embodiment of described intelligent remote feeding network communication power of the present invention;
Fig. 2 is the circuit theory diagrams of intelligent remote feeding network communication power of the present invention;
Fig. 3 A is the circuit theory diagrams of the corresponding power module of far-end power consumption equipment side of the present invention;
Fig. 3 B is the circuit block diagram of the corresponding power module of far-end power consumption equipment side of the present invention.
Embodiment
Below in conjunction with accompanying drawing,, will make technical scheme of the present invention and beneficial effect thereof apparent by detailed description to preferred embodiment of the present invention.
Described intelligent remote feeding network communication power of the present invention, the staff can carry out straighforward operation at central station, carry out Attended mode or the maintenance of showing up and need not the staff to each big and small substation, can be with the network signal of far-end, transmit by same supply line with supply power voltage as audio signal etc., thereby it is convenient to save manpower and powered operation, energy-conservation of consumption reduction.
Described intelligent remote feeding network communication power of the present invention, as depicted in figs. 1 and 2, it comprises an input supply circuit 11 at least, the accumulator DC that this input supply circuit 11 is accepted input is pressed 48V, for obtaining pure direct voltage, being provided with common mode choke L3 in the described input supply circuit 11 is used for blocking voltage and mingles composition, be provided with at least one pair of common mode capacitance simultaneously, carry out filtering filtering interchange noise signal wherein, so that obtain pure direct voltage, and assurance is interference-free substantially along the network signal of supply line's transmission, and described common mode inductance series connection back is connected to load with electric capacity, and a polypropylene high frequency capacitance carries out bypass filtering.
Described intelligent remote feeding network communication power of the present invention, described input supply circuit connects the stand-by power supply of input, described intelligent remote feeding network communication power also comprises a high frequency conversion circuit 12 simultaneously, this high frequency conversion circuit 12 comprises a high frequency transformer T2 who is used to produce high frequency conversion, it is that frequency is the high-frequency high-voltage direct voltage of 130～300V for 50KHz voltage that this high frequency transformer T2 carries out high frequency conversion with described direct voltage, and then the filtering of process high-frequency diode rectification circuit and High frequency filter inductance and a plurality of high frequency low-resistance electric capacity, described high-frequency and high-voltage is adjusted into smooth direct voltage, described each current rectifying and wave filtering circuit all is arranged in a direct current and the network imput output circuit 13, and described voltage behind high frequency conversion is carried out after rectification and the filtering to the far-end output voltage.High frequency 260～300V direct voltage after adjustment and rectification flows to each telepoint base station power consumption equipment of 0～15KM by former supply line.Described telepoint base station correspondence be provided with far-end wide region power module, circuit theory diagrams as shown in Figure 3A can be transformed to stable DC voltage from 260～300V high frequency voltage that the central station transmission comes and supply with power consumption equipment and use.
Described intelligent remote feeding network communication power of the present invention cooperates described far-end wide region power module to use, send the 60V direct voltage by intelligent remote feeding network communication power to this far-end wide region power module and carry out circuit and power consumption equipment detection by far-end wide region power supply mould, there are not faults such as short circuit, open circuit, electric leakage as circuit, after showing that circuit and power consumption equipment are normal, send audio signal and send the audio detection signal that instruction will receive far-end wide region power module as shown in Figure 3A to intelligent remote feeding network communication power network control system of the present invention; After described intelligent remote feeding network communication power receives this signal instruction, in 3 seconds, feed to the electricity consumption facility, can also from described far-end wide region power module, receive all communication information data of substation simultaneously to substation transmission 130～300V DC high-voltage power supply.
Intelligent remote feeding network communication power of the present invention; it also comprises at least one control and a protective circuit 14 and an accessory power supply 15; described accessory power supply 15 is to described control and protective circuit 14 power supplies; described control and protective circuit 14 also comprise an accessory power supply over under-voltage protection circuit and a main power source over under-voltage protection circuit; be used to monitor output voltage; and control the shutoff of described high frequency conversion circuit when the overvoltage/undervoltage situation in monitoring circuit, occurring, be used to protect this circuit not damaged.
Described accessory power supply 15 is also powered to a CPU; this CPU accepts the monitoring result from far-end, supply line and this circuit arrangement; and set in advance processing instruction at different monitoring results, thereby the overvoltage/undervoltage protection and the circuit abnormality that can carry out circuit are handled., as open circuit or during short circuit the conveying of described CPU control stopping power supply when intelligent remote feeding network communication power of the present invention receives the line signal of described far-end wide region power module; When detection signal feedback supply line and power consumption equipment just often, described cpu control circuit output high voltagehigh frequency direct voltage.
Described intelligent remote feeding network communication power of the present invention and far-end wide region module also are provided with a control circuit, being provided with a voltage comparator circuit in this control circuit is used for discerning automatically line-spacing and power and carries out the automated power compensation, judge fed distance and pressure drop according to described far-end wide region power module feedack, thereby adjust the voltage of intelligent remote feeding network communication power output, guarantee that the voltage of far-end power consumption equipment is normal.
Described intelligent remote feeding network communication power of the present invention need be used with described far-end wide region power module, promptly described intelligent remote feeding network communication power of the present invention is set at central station, and corresponding far-end wide region power module circuitry is set at each substation of far-end, shown in Fig. 3 A and Fig. 3 B.
Described far-end wide region power module also comprises an auto polarity change-over circuit 1, and to prevent its input direct voltage reversal connection, this auto polarity change-over circuit is that a bridge-type element circuit 1 is finished, and is output as required electric power polarity, and can allows passing through of network signal; It also comprises at least one high frequency conversion circuit and at least one rectifying output circuit, electrically connects in turn from described auto polarity change-over circuit; Described high frequency conversion circuit also comprises a high-end high frequency conversion circuit 2 and a low side high frequency conversion circuit 3; Described rectifying output circuit also comprises a high-end rectification circuit 4 and a low side rectification circuit 5; Described high-end high frequency conversion circuit 2 electrically connects with described high-end rectification circuit 4; described low side high frequency conversion circuit 3 electrically connects with described low side rectification circuit 5, sub-station equipment is controlled transferred survey protection and automatic identification line-spacing and power back-off control circuit to carry out exporting to follow-up power consumption equipment after high frequency conversion and the rectification processing respectively.
Also be provided with intelligence high-low pressure commutation circuit 6 automatically between described auto polarity change-over circuit 1 and described high-end high frequency conversion circuit 2 and the described low side high frequency conversion circuit 3, in the automatic high-low pressure commutation circuit of this intelligence, be provided with one and be used for control circuit at described high-end high frequency conversion circuit 2 and 3 in low side high frequency conversion circuit switches and CPU7 that network equipment feedback signal is handled, this CPU7 also is provided with peripheral circuit, output signal pin by described CPU7 is connected with two-supremes precision comparator detection control end respectively, can be by described CPU7 according to detection to the voltage in the circuit, controlling the described high-end high frequency conversion circuit of selection by this two signals pin still is low side high frequency conversion circuit, handles thereby carry out relevant voltage.
Because the far-end communication power supply that far-end power supply module of the present invention is accepted is with transmission 60V low-voltage dc voltage that is used to detect and the 260～300V high-voltage dc voltage that is used for work, above-mentioned concrete numerical value only is preferred embodiment of the present invention, must not be interpreted as restriction to scope of patent protection of the present invention, therefore described CPU7 of the present invention will select after detecting the height of input voltage through high-end high frequency conversion circuit 2 or low side high frequency conversion circuit 4, for example when detecting input voltage 60V, described CPU7 sends control signal control and changes without described high-end high frequency conversion circuit 2 through described low side high frequency conversion circuit 4, and detect, circuit of the present invention can also be provided with the network audio signalling at follow-up power consumption equipment end; According to the difference of testing result, as the no current that opens circuit, short circuit current is excessive, and the electric shock leakage current is excessive etc., and whether described CPU7 collects the information of supply line and power consumption equipment, and sends network signal along this supply line to the far-end communication power supply, answer normal; When detection finishes power consumption equipment and supply line just often, control circuit in the far-end communication power supply becomes 260～300V high tension voltage with input voltage, and carry out automated power compensation through voltage comparator circuit, promptly detecting the instruction of judging by distal center station intelligent remote feeding network communication power according to far-end wide region module, to flow to the voltage that the required pressure drop of each extension guarantees to be transported to far-end power consumption equipment end be appropriate numerical value; Described CPU7 detects the conversion fraction of just controlling described low side high frequency conversion circuit 4 when input voltage is high pressure and turn-offs, and is carried out the electric voltage frequency conversion and is powered to follow-up power consumption equipment through described high-end rectification circuit 4 by described high-end high frequency conversion circuit 2.
In power supply process, still can communicate intercommunication between the communication power supply at far-end wide region power module of the present invention and described distal center station, so that realize intelligentized real time monitoring and control.
The load end of circuit of the present invention can be provided with audio signal and transmit audio network signal and different voltages simultaneously by cpu control circuit of the present invention, so the scope of application is wide, and control is intelligent, and can while transmission network signal and voltage.
As shown in Figure 3A, described high-end high frequency conversion circuit 2 and low side high frequency conversion circuit 4 all comprise a high frequency conversion coil respectively, to be converted to the needed voltage of power consumption equipment from the DC circuit of described auto polarity change-over circuit 1, because the distal center station is provided with the automated power compensating circuit, therefore by the voltage after the circuit transmission pressure drop still in the required voltage scope; And in the circuit of described high-end high frequency conversion circuit 2 and described low side high frequency conversion circuit 4, all be provided with a protective circuit respectively; wherein most importantly it comprises first, second overvoltage/undervoltage protection chip; concrete but to be not limited to be HN-0108 chip and peripheral circuit thereof; a described HN-0108 chip is used for described high-end high frequency conversion circuit 2; described the 2nd HN-0108 chip is used for described low side high frequency conversion circuit 4; carry out modulation, voltage stabilizing detection, overcurrent-overvoltage and the overheat protector of pulsewidth respectively, thereby be used for overvoltage/undervoltage protection and feedback effect.
Far-end wide region power module of the present invention, described high-end high frequency conversion circuit 2 and low side high frequency conversion circuit 4 also comprise an optocoupler respectively, and circuit working state is isolated and fed back.
Should be understood that, more than too concrete at the description of specific embodiments of the invention, therefore can not be interpreted as restriction to scope of patent protection of the present invention, its scope of asking for protection should be as the criterion with claims of the present invention.
Claims (5)
1, a kind of intelligent remote feeding network communication power, it comprises an input supply circuit, connects stand-by power supply; It is characterized in that described intelligent remote feeding network communication power also comprises a high frequency conversion circuit, it is that high-frequency DC is pressed that the low voltage and direct current of described input supply power input is compressed into capable high frequency conversion; And a direct current and a network imput output circuit, described voltage behind high frequency conversion is carried out after rectification and the filtering to the far-end output voltage.
2, intelligent remote feeding network communication power according to claim 1; it is characterized in that; described intelligent remote feeding network communication power also comprises a control and a protective circuit and an accessory power supply; described accessory power supply is to described control and protective circuit power supply; described control and protective circuit are monitored output voltage, and control the shutoff of described high frequency conversion circuit.
3, intelligent remote feeding network communication power according to claim 2 is characterized in that, comprises a common-mode filter in the described input supply circuit, and it comprises a pair of common mode capacitance place in circuit, the interchange noise signal in the filtering filtering input voltage.
4, intelligent remote feeding network communication power according to claim 3 is characterized in that, also is provided with at least one polypropylene high frequency capacitance in the described input supply circuit and carries out filtering.
5, intelligent remote feeding network communication power according to claim 4 is characterized in that, also is provided with a control circuit in the described circuit, is provided with a voltage comparator circuit in this control circuit and is used for far-end voltage is carried out the automated power compensation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410087888 CN1684419A (en) | 2004-03-26 | 2004-10-28 | Intelligent remote feeding network communication power |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410026651 | 2004-03-26 | ||
| CN200410026651.4 | 2004-03-26 | ||
| CN 200410087888 CN1684419A (en) | 2004-03-26 | 2004-10-28 | Intelligent remote feeding network communication power |
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| Publication Number | Publication Date |
|---|---|
| CN1684419A true CN1684419A (en) | 2005-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410087888 Pending CN1684419A (en) | 2004-03-26 | 2004-10-28 | Intelligent remote feeding network communication power |
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| CN (1) | CN1684419A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100391151C (en) * | 2006-05-26 | 2008-05-28 | 广东天波信息技术有限公司 | Intelligent low voltage detection far-distance power supply system |
| CN102237678A (en) * | 2010-04-30 | 2011-11-09 | 深圳市锦龙通信技术有限公司 | Direct-current remote feeding power system |
| CN107425723A (en) * | 2017-06-23 | 2017-12-01 | 华中科技大学 | A kind of high-voltage DC power supply of the wide scope continuously adjustabe based on microcontroller |
-
2004
- 2004-10-28 CN CN 200410087888 patent/CN1684419A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100391151C (en) * | 2006-05-26 | 2008-05-28 | 广东天波信息技术有限公司 | Intelligent low voltage detection far-distance power supply system |
| CN102237678A (en) * | 2010-04-30 | 2011-11-09 | 深圳市锦龙通信技术有限公司 | Direct-current remote feeding power system |
| CN102237678B (en) * | 2010-04-30 | 2012-09-26 | 深圳市伟林锦龙通信技术有限公司 | Direct-current remote feeding power system |
| CN107425723A (en) * | 2017-06-23 | 2017-12-01 | 华中科技大学 | A kind of high-voltage DC power supply of the wide scope continuously adjustabe based on microcontroller |
| CN107425723B (en) * | 2017-06-23 | 2019-07-23 | 华中科技大学 | A kind of high-voltage DC power supply that the wide scope based on microcontroller is continuously adjustable |
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