CN203761121U - Dual power backup device - Google Patents
Dual power backup device Download PDFInfo
- Publication number
- CN203761121U CN203761121U CN201420125881.5U CN201420125881U CN203761121U CN 203761121 U CN203761121 U CN 203761121U CN 201420125881 U CN201420125881 U CN 201420125881U CN 203761121 U CN203761121 U CN 203761121U
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- circuit
- power supply
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- power
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Abstract
The utility model provides a dual power backup device, comprising a first power supply circuit and a second power supply circuit, which are in parallel connection. The dual power backup device is characterized in that the dual power backup device also comprises a state detecting circuit and a communication interface circuit; the first power supply circuit is connected to a first power supply, a first power supply passing and detecting circuit, and a first power supply passing and isolating circuit in order; the second power supply circuit is connected to a second power supply, a second power supply passing and detecting circuit, and a second power supply passing and isolating circuit in order. The dual power backup device is advantageous in that the dual power supplies power for the device simultaneously; producing cost is low, reliability is high, and stability is good; the structure is simple and operation is easy; remote monitoring can be realized; continuous power supply for the device can be guaranteed.
Description
Technical field
The utility model relates to electric power system field, relates in particular to a kind of duplicate supply back-up device of cable television system.
Background technology
Traditional device power supply (DPS) system all adopts single Power supply, once power supply breaks down like this, whole equipment will be paralysed, and gives and produces, lives and bring very large impact.
Authorize the utility model that publication number is CN203135567U to disclose a kind of duplicate supply switching back-up device, it comprises two three phase mains, two diverter switches, two overvoltage/undervoltage protection contactors and a relay, only a power supply powers to the load under normal circumstances, when power supply breaks down, allow another one power supply drop into power supply by diverter switch; This device, owing to being three phase mains, it is mainly industry, is not suitable for household electricity, and secondly, two power supplys can not be load supplying simultaneously, and can not break down by which power supply of remote monitoring.
In view of above defect, need to design the required power supply backup system of a kind of especially cable television system, and the operating state of energy remote monitoring power supply.
Utility model content
(1) technical problem that will solve
The duplicate supply back-up device that the utility model provides, two power supplys are powered simultaneously, once a power supply breaks down, another power supply can be powered to equipment, has realized seamless uninterrupted power supply, and can monitor in real time which power supply and break down, and keep in repair with this, ensure power supply continuously.
(2) technical scheme
To achieve these goals, the utility model provides a kind of duplicate supply back-up device, comprise the first power circuit parallel with one another and second source circuit, it is characterized in that: also comprise state detecting circuit and communication interface circuit, the first power circuit by the first power supply, the first power supply by with testing circuit, the first power supply by being linked in sequence and forming with buffer circuit; Second source circuit by second source, second source by with testing circuit, second source by being linked in sequence and forming with buffer circuit.
Wherein, the first power supply, second source are connected with mains electricity input end respectively.
Wherein, the first power supply by with buffer circuit, second source by and buffer circuit export respectively direct current.
Wherein, state detecting circuit respectively with the first power supply by with testing circuit, second source by being connected with testing circuit.
Wherein, state detecting circuit is connected with communication interface circuit.
Wherein, the first power supply is connected to form by the first transformer, the first rectification circuit, the first electrochemical capacitor, the first common electric capacity, the first pressurizer, the second electrochemical capacitor and the second common electric capacity order.
Wherein, second source is connected to form by the second transformer, the second rectification circuit, the 3rd electrochemical capacitor, the 3rd common electric capacity, the second pressurizer, the 4th electrochemical capacitor and the 4th common electric capacity order.
Wherein, the first power supply by with testing circuit be in series by the first resistance and the second resistance, second source by with testing circuit be in series by the 3rd resistance and the 4th resistance, one end of the second resistance and the 3rd resistance is ground connection respectively.
Wherein, the first power supply is by comprising the first diode with buffer circuit, and second source is by comprising the second diode with buffer circuit, and the first diode and the second diode are respectively from output output direct current.
(3) beneficial effect
The duplicate supply back-up device that the utility model provides, cost is low, reliability is high, good stability, simple in structure, handling safety, easy, realize seamless uninterrupted power supply, and can remote monitoring, ensure power supply continuously, for HFC, CATV transmission system provide reliable and stable long-life Power supply equipment.
Brief description of the drawings
Fig. 1 is block diagram of the present utility model.
Fig. 2 is the circuit structure diagram that two power supplys are powered simultaneously.
In figure, 11: first input end; 12: the second inputs; 2: output; 31: the first transformers; 32: the second transformers; 41: the first rectification circuits; 42: the second rectification circuits; 51: the first electrochemical capacitors; 52: the second electrochemical capacitors; 53: the three electrochemical capacitors; 54: the four electrochemical capacitors; 61: the first common electric capacity; 62: the second common electric capacity; 63: the three common electric capacity; 64: the four common electric capacity; 71: the first pressurizers; 72: the second pressurizers; 81: the first resistance; 82: the second resistance; 83: the three resistance; 84: the four resistance; 91: the first diodes; 92: the second diodes; 10:USB2.0; 20: communication interface; 30: state detecting circuit.
Embodiment
Duplicate supply back-up device of the present utility model, comprises the first power circuit parallel with one another and second source circuit, it is characterized in that: also comprise state detecting circuit and communication interface circuit; The first power circuit by the first power supply, the first power supply by with testing circuit, the first power supply by being linked in sequence and forming with buffer circuit; Second source circuit by second source, second source by with testing circuit, second source by being linked in sequence and forming with buffer circuit; The first power supply, second source are connected with mains electricity input end respectively.
The first power supply is linked in sequence and is formed by the first transformer 31, the first rectification circuit 41, the first electrochemical capacitor 51, the first common electric capacity 61, the first pressurizer 71, the second electrochemical capacitor 52 and the second common electric capacity 62, and second source is linked in sequence and is formed by the second transformer 32, the second rectification circuit 42, the 3rd electrochemical capacitor 53, the 3rd common electric capacity 63, the second pressurizer 72, the 4th electrochemical capacitor 54 and the 4th common electric capacity 64.
The first power supply by with testing circuit be in series by one end of the first resistance 81 and one end of the second resistance 82, second source by with testing circuit be in series by one end of the 3rd resistance 83 and one end of the 4th resistance 84, the other end of the second resistance 82 and the 3rd resistance 83 is ground connection respectively.
The first power supply is by being to be made up of the first diode 91 with buffer circuit, and second source is by being to be made up of the second diode 92 with buffer circuit, and the first diode 91 and the second diode 92 are exported direct current from output 2 respectively;
The other end of the first resistance 81 is connected between the output of the second common electric capacity 62 and the input of the first diode 91, and the other end of the 4th resistance 84 is connected between the output of the 4th common electric capacity 64 and the input of the second diode 92;
The wherein two-port of state detecting circuit is connected with communication interface circuit, the another two-port of state detecting circuit is connected on respectively between the first resistance 81 and the second resistance 82, between the 3rd resistance 83 and the 4th resistance 84, communication interface circuit comprises (USB2.0) 10 and communication interface 20, and (USB2.0) 10 are connected with communication interface 20.
The detailed course of work of the duplicate supply back-up device that the utility model provides is: first input end 11, the second input 12 is inputted respectively the alternating voltage of 220V, the first power circuit and second source circuit are worked simultaneously, for the direct voltage of stable output, need to pass through transformer pressure-reducing, rectification circuit rectification is direct voltage, capacitor filtering, pressurizer voltage stabilizing, becoming galvanic current through capacitor filtering again presses, in this process, state detecting circuit 30 is being detected this two power circuits always, see that whether its door is all in normal work, if detect that one of them power circuit breaks down, the result detecting will be exported by communication interface 20, for long-range staff's implementing measure, the power supply that another one does not break down simultaneously continues as equipment power supply, wherein the effect of resistance in circuit is whether dividing potential drop and testing circuit be normal, because diode has the unidirectional general character, diode plays isolation voltage in circuit to be disturbed.Equipment will obtain continual power supply like this, prevents because of power-off and obliterated data.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and replacement, these improvement and replacement also should be considered as protection range of the present utility model.
Claims (9)
1. a duplicate supply back-up device, comprise the first power circuit parallel with one another and second source circuit, it is characterized in that: also comprise state detecting circuit and communication interface circuit, the first power circuit by the first power supply, the first power supply by with testing circuit, the first power supply by being linked in sequence and forming with buffer circuit; Second source circuit by second source, second source by with testing circuit, second source by being linked in sequence and forming with buffer circuit.
2. duplicate supply back-up device as claimed in claim 1, is characterized in that: the first power supply, second source are connected with mains electricity input end respectively.
3. duplicate supply back-up device as claimed in claim 1, is characterized in that: the first power supply by with buffer circuit, second source by and buffer circuit export respectively direct current.
4. duplicate supply back-up device as claimed in claim 1, is characterized in that: state detecting circuit respectively with the first power supply by with testing circuit, second source by being connected with testing circuit.
5. duplicate supply back-up device as claimed in claim 1, is characterized in that: state detecting circuit is connected with communication interface circuit.
6. the duplicate supply back-up device as described in claim 1-5 any one, is characterized in that: the first power supply is connected to form by the first transformer, the first rectification circuit, the first electrochemical capacitor, the first common electric capacity, the first pressurizer, the second electrochemical capacitor and the second common electric capacity order.
7. duplicate supply back-up device as claimed in claim 6, is characterized in that: second source is connected to form by the second transformer, the second rectification circuit, the 3rd electrochemical capacitor, the 3rd common electric capacity, the second pressurizer, the 4th electrochemical capacitor and the 4th common electric capacity order.
8. duplicate supply back-up device as claimed in claim 7, it is characterized in that: the first power supply by with testing circuit be in series by the first resistance and the second resistance, second source by with testing circuit be in series by the 3rd resistance and the 4th resistance, one end of the second resistance and the 3rd resistance is ground connection respectively.
9. duplicate supply back-up device as claimed in claim 8, it is characterized in that: the first power supply is by comprising the first diode with buffer circuit, second source is by comprising the second diode with buffer circuit, and the first diode and the second diode are respectively from output output direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125881.5U CN203761121U (en) | 2014-03-20 | 2014-03-20 | Dual power backup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125881.5U CN203761121U (en) | 2014-03-20 | 2014-03-20 | Dual power backup device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203761121U true CN203761121U (en) | 2014-08-06 |
Family
ID=51256358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420125881.5U Expired - Fee Related CN203761121U (en) | 2014-03-20 | 2014-03-20 | Dual power backup device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203761121U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410147A (en) * | 2014-12-10 | 2015-03-11 | 上海新干通通信设备有限公司 | Power supply with backup and monitoring functions |
| CN110782565A (en) * | 2019-11-07 | 2020-02-11 | 上海庆科信息技术有限公司 | Wireless identification fingerprint device and intelligent lock equipment |
-
2014
- 2014-03-20 CN CN201420125881.5U patent/CN203761121U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410147A (en) * | 2014-12-10 | 2015-03-11 | 上海新干通通信设备有限公司 | Power supply with backup and monitoring functions |
| CN110782565A (en) * | 2019-11-07 | 2020-02-11 | 上海庆科信息技术有限公司 | Wireless identification fingerprint device and intelligent lock equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20190320 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |