CN202696263U - Power-down holding circuit and master control apparatus - Google Patents
Power-down holding circuit and master control apparatus Download PDFInfo
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- CN202696263U CN202696263U CN 201220171318 CN201220171318U CN202696263U CN 202696263 U CN202696263 U CN 202696263U CN 201220171318 CN201220171318 CN 201220171318 CN 201220171318 U CN201220171318 U CN 201220171318U CN 202696263 U CN202696263 U CN 202696263U
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- retaining circuit
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Abstract
The utility model discloses a power-down holding circuit and a master control apparatus. The power-down holding circuit comprises a main power-down holding circuit and at least one standby power-down holding circuit. The main power-down holding circuit comprises an energy storage element and a control switch which are mutually connected. Each standby power-down holding circuit comprises an energy storage element. The energy storage element of the main power-down holding circuit is connected with the input terminal of an external power supply; the control switch is also connected with the output terminal of the power supply; and the energy storage element of each standby power-down holding circuit is connected with the energy storage element of the main power-down holding circuit and the input terminal of the power supply. According to the utility model, the power-down holding time is substantially prolonged, the layout space is fully utilized, the power-down holding circuit of the master control apparatus with much layout space can use more energy storage capacitance, the power-down holding circuit of the master control apparatus with less layout space can use less energy storage capacitance, thereby the master control apparatus can emit an alarm information bag whether having much or little layout space, and the resource of the whole system is fully utilized.
Description
Technical field
The utility model relates to the communication equipment technical field, relates in particular to a kind of power-down retaining circuit and main control device.
Background technology
In communication equipment; when the supply power voltage of main control device falls or during system power failure; generally need to provide warning information to webmaster; in order to improve the maintainability of system; main control device also needs the running status of communication equipment is reported usually; these reporting informations are referred to as the warning information bag here.In order to fall at voltage or during system power failure, to guarantee the warning information bag is sent, must in main control device, increase power-down retaining circuit.When the voltage that monitors main control device drops to threshold value when following, continue power supply by power-down retaining circuit to main control device, provide the extra work time, in order to the warning information bag is sent.
The power-down retaining circuit implementation, main thought be between the both positive and negative polarity of power input one or more electric capacity in parallel as energy-storage travelling wave tube, certainly generally also can increase in front some power supply processing circuits, such as: reverse-connection preventing circuit, lightning protection circuit, filter circuit and current-limiting circuit etc.
The most crucial technical indicator of power-down retaining circuit is the power down retention time, namely when monitoring that input voltage falls or during power down, and the additional working hour that is provided to main control device by power-down retaining circuit.
In order to prolong the power down retention time, at present the normal a kind of scheme that adopts is power input booster circuit in parallel externally, the booster circuit back connects storage capacitor again, storage capacitor is connected with the power input of main control device by switching device, when power supply is normal, power input charges to storage capacitor by booster circuit, and switching device disconnects the power input of storage capacitor and main control device; When monitoring that voltage falls or when system power failure, switching device is connected storage capacitor in the power input connection with main control device, powered to main control device by storage capacitor, with respect to the power-down retaining circuit that only uses storage capacitor to consist of, this method has prolonged the power down retention time greatly.
In order to strive in the power down retention time of preciousness, sending warning information bag as much as possible, also some system abandons traditional dependence CPU (central processing unit, CPU) method of processing is used the logical device such as PLD (the programmable logic device programmable logic device) bag that sends a warning message.
At present, the most ripe technology is to add the power-down retaining circuit that storage capacitor consists of behind the aforementioned booster circuit, remaining scheme is to derive on this basis and improve substantially, the prolongation power down retention time that can not be clearly, it is also very limited to substitute the send a warning message method effect of bag of CPU with logical device, under existing conditions, want to prolong the power down retention time, just needing increases the number of storage capacitor or selects jumbo electric capacity, but the arrangement space of veneer has limited this way.In the fixed situation of veneer arrangement space, present technology has been difficult to prolong the power down retention time of system again.
The utility model content
The technical problems to be solved in the utility model provides a kind of power-down retaining circuit and main control device, can prolong the power down retention time.
For solving the problems of the technologies described above, a kind of power-down retaining circuit of the present utility model, comprise: primary power-down retaining circuit and at least one power-down retaining circuit for subsequent use, described primary power-down retaining circuit comprises energy-storage travelling wave tube and the control switch that is connected, described power-down retaining circuit for subsequent use comprises energy-storage travelling wave tube, the energy-storage travelling wave tube of described primary power-down retaining circuit also is connected with the external power source input, described control switch also is connected with power output end, the energy-storage travelling wave tube of described power-down retaining circuit for subsequent use and the energy-storage travelling wave tube of described primary power-down retaining circuit be connected the external power source input and be connected.
Further, between the energy-storage travelling wave tube of described primary power-down retaining circuit and external power source input, also be connected with the antireflux device; And, between the energy-storage travelling wave tube of described power-down retaining circuit for subsequent use and external power source input, be connected with equally the antireflux device.
Further, between the energy-storage travelling wave tube of described primary power-down retaining circuit and external power source input, also be connected with booster circuit; And, between the energy-storage travelling wave tube of described power-down retaining circuit for subsequent use and external power source input, be connected with equally booster circuit.
Further, described power-down retaining circuit for subsequent use also comprises control switch, and the control switch of described power-down retaining circuit for subsequent use is connected between the energy-storage travelling wave tube and power output end of described power-down retaining circuit for subsequent use.
Further, described antireflux device is diode.
Further, a kind of main control device, comprise: power circuit, electric source monitoring circuit and control circuit, described power circuit is connected with control circuit with described electric source monitoring circuit respectively, described power circuit comprises power-down retaining circuit, described power-down retaining circuit comprises: primary power-down retaining circuit and at least one power-down retaining circuit for subsequent use, described primary power-down retaining circuit comprises energy-storage travelling wave tube and the control switch that is connected, described power-down retaining circuit for subsequent use comprises energy-storage travelling wave tube, the energy-storage travelling wave tube of described primary power-down retaining circuit also is connected with the external power source input, described control switch also is connected with power output end, the energy-storage travelling wave tube of described power-down retaining circuit for subsequent use and the energy-storage travelling wave tube of described primary power-down retaining circuit be connected the external power source input and be connected.
Further, the control end of the control switch of described primary power-down retaining circuit is connected with described control circuit.
Further, between the energy-storage travelling wave tube of described primary power-down retaining circuit and external power source input, also be connected with the antireflux device; And, between the energy-storage travelling wave tube of described power-down retaining circuit for subsequent use and external power source input, be connected with equally the antireflux device.
Further, between the energy-storage travelling wave tube of described primary power-down retaining circuit and external power source input, also be connected with booster circuit; And, between the energy-storage travelling wave tube of described power-down retaining circuit for subsequent use and external power source input, be connected with equally booster circuit.
Further, described power-down retaining circuit for subsequent use also comprises control switch, and the control switch of described power-down retaining circuit for subsequent use is connected between the energy-storage travelling wave tube and power output end of described power-down retaining circuit for subsequent use.
In sum, the utility model so that the power down retention time greatly prolong, and can take full advantage of arrangement space, the power-down retaining circuit of the main control device that arrangement space is many can use more storage capacitor, the power-down retaining circuit of the main control device that arrangement space is few can use a small amount of storage capacitor, like this, no matter arrangement space is many or the function that outwards sends a warning message and wrap can both be arranged less, also take full advantage of the resource of whole system.
Description of drawings
Fig. 1 is the structure chart that power down keeps the main control device of function that has of the present utility model;
Fig. 2 is the structure chart of the power-down retaining circuit of two-way of the present utility model;
Fig. 3 is the structure chart of the power-down retaining circuit of the utility model two-way of using booster circuit;
Fig. 4 is the structure chart of the power-down retaining circuit of multichannel of the present utility model.
Embodiment
The utility model provides a kind of main control device that power down keeps function that has, and comprising: power circuit, electric source monitoring circuit and control circuit.Power circuit comprises: pre-process circuit, power-down retaining circuit and power devices circuit.
Power-down retaining circuit comprises primary power-down retaining circuit and at least one power-down retaining circuit for subsequent use, primary power-down retaining circuit and power-down retaining circuit for subsequent use can be directly to use energy-storage travelling wave tube to be parallel to the external power source input, also can be to add energy-storage travelling wave tube behind the use booster circuit to be parallel to the external power source input.Between energy-storage travelling wave tube or booster circuit and external power source input, need be connected antireflux device (diode), prevent that the energy on the electric capacity from flowing out to the external power source input from the input of power-down retaining circuit.
Be connected control switch between the power output end of energy-storage travelling wave tube and power-down retaining circuit, the energy-storage travelling wave tube of primary power-down retaining circuit and the link of control switch interconnect with the energy-storage travelling wave tube of power-down retaining circuit for subsequent use and the link of control switch.Primary like this power-down retaining circuit and power-down retaining circuit for subsequent use are equivalent to parallel connection.
When main control device powered on, the control switch of primary power-down retaining circuit and power-down retaining circuit for subsequent use all disconnected, and the external power source input is given two energy-storage travelling wave tube chargings; When supply power voltage falls or when system power failure, the control switch of primary power-down retaining circuit is closed, the control switch of power-down retaining circuit for subsequent use disconnects, and all to the main control device power supply, main control device provides the warning information bag to webmaster to the two-way power-down retaining circuit like this.
The utility model also provides between a plurality of power-down retaining circuits for subsequent use unites the mode that consists of power-down retaining circuit, wherein, a plurality of power-down retaining circuits for subsequent use can be identical, also can be different, but all need to be connected in parallel on the external power source input, and the input of power-down retaining circuit need connect the diode of antireflux, prevent that electric current from pouring in down a chimney, the output of the energy-storage travelling wave tube of power-down retaining circuit is similar with aforementioned two-way power-down retaining circuit, output minute two-way, the control switch of leading up to connects power output end, another road is seen off, this road signal that each power-down retaining circuit is sent links together, and all power-down retaining circuits are equivalent to be together in parallel like this, has formed a large power-down retaining circuit.
When whole system powers on, each power-down retaining circuit charges, and control switch all disconnects, when monitoring system power failure, the control switch of primary power-down retaining circuit is closed, the control switch of power-down retaining circuit for subsequent use remains open, and whole so large power-down retaining circuit just can be sent the row power supply to main control device.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, keep the overall construction drawing of the main control device of function for the utlity model has power down, comprising: power circuit, electric source monitoring circuit and control circuit.
Power circuit comprises: pre-process circuit, power-down retaining circuit and power devices circuit.
Pre-process circuit comprises: lightning protection circuit, filter circuit and current-limiting circuit etc.
The power-down retaining circuit part below will elaborate.
It is the circuit of device required voltage in the equipment that the power devices circuit comprises the outside voltage transitions.
Whether the voltage of electric source monitoring circuit monitoring main control device falls road or whether power down.After monitoring these situations, send the interruption monitor signal to control circuit, this interrupts monitor signal is the highest priority interrupt signal.
Control circuit is received and is interrupted after the monitor signal, the control end of the control switch of the primary power-down retaining circuit of the power-down retaining circuit in the power circuit transmits control signal, make this control switch closed, and outwards sending the alarm signal bag by imput output circuit, control circuit can use the logical devices such as CPU or the PLD bag that sends a warning message.
Fig. 2 is that the utility model uses electric capacity as the embodiment of the power-down retaining circuit of the two-way of the energy-storage travelling wave tube of power-down retaining circuit, comprises primary power-down retaining circuit and power-down retaining circuit for subsequent use, and the composition of two power-down retaining circuits is just the same.Each power-down retaining circuit comprises the antireflux diode, prevents that electric current from pouring in down a chimney to the external power source input.Use externally power input of Capacitance parallel connection, the energy storage prime is used the diode of antireflux, electric capacity output is divided into two-way, one the tunnel connects control switch, another road connects the same position of relative power-down retaining circuit, the energy-storage travelling wave tube of realizing primary power-down retaining circuit be connected the connection of energy-storage travelling wave tube of power-down retaining circuit, be equivalent to like this two power-down retaining circuits and do parallel connection.
When system powered on normal operation, the control switch of primary power-down retaining circuit and power-down retaining circuit for subsequent use all disconnected, and the external power source input is given each capacitor charging.When monitoring that system voltage falls or during system power failure, control circuit transmits control signal to the control end of the control switch of primary power-down retaining circuit, the control switch of controlling primary power-down retaining circuit is closed, the control switch of power-down retaining circuit for subsequent use remains open, energy in the electric capacity of such two circuit all offers main control device, makes the most enough bags that sends a warning message of main control device.
Fig. 3 is the embodiment of the power-down retaining circuit of the utility model two-way of using booster circuit and electric capacity, and similar to Fig. 2, difference is to increase booster circuit before the electric capacity of each power-down retaining circuit, so that the energy that stores in the electric capacity is more.Control mode during power down is identical with the embodiment of Fig. 2.
Fig. 4 is the embodiment of the power-down retaining circuit of the utility model multichannel of using electric capacity, n power-down retaining circuit can be different, it can be the scheme of using electric capacity, it also can be the scheme of using electric capacity and booster circuit, power-down retaining circuit also uses diode and the control switch of antireflux, fraction two-way before the control switch, one the tunnel connects control switch, another road is sent outside the circuit, this road of each power-down retaining circuit is sent signal and is linked together, and is equivalent to so all power-down retaining circuits and has been together in parallel.The main control device that arrangement space is many can be placed energy-storage travelling wave tube more, and the equipment that arrangement space is few can be placed energy-storage travelling wave tube less.
When system powered on, the control switch of all power-down retaining circuits all disconnected, and external power source is given all energy-storage travelling wave tube chargings.When monitoring power down, the control switch of primary power-down retaining circuit is closed, and the control switch of power-down retaining circuit for subsequent use remains open, and the energy of all electric capacity can provide main control device like this, has broken through the restriction of power down retention time deficiency.
Certainly; the utility model also can have other various embodiments; in the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
One of ordinary skill in the art will appreciate that all or part of step in the said method can come the instruction related hardware to finish by program, described program can be stored in the computer-readable recording medium, such as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Claims (10)
1. power-down retaining circuit, it is characterized in that, comprise: primary power-down retaining circuit and at least one power-down retaining circuit for subsequent use, described primary power-down retaining circuit comprises energy-storage travelling wave tube and the control switch that is connected, described power-down retaining circuit for subsequent use comprises energy-storage travelling wave tube, the energy-storage travelling wave tube of described primary power-down retaining circuit also is connected with the external power source input, described control switch also is connected with power output end, the energy-storage travelling wave tube of described power-down retaining circuit for subsequent use and the energy-storage travelling wave tube of described primary power-down retaining circuit be connected the external power source input and be connected.
2. power-down retaining circuit as claimed in claim 1 is characterized in that, also is connected with the antireflux device between the energy-storage travelling wave tube of described primary power-down retaining circuit and external power source input; And, between the energy-storage travelling wave tube of described power-down retaining circuit for subsequent use and external power source input, be connected with equally the antireflux device.
3. power-down retaining circuit as claimed in claim 1 is characterized in that, also is connected with booster circuit between the energy-storage travelling wave tube of described primary power-down retaining circuit and external power source input; And, between the energy-storage travelling wave tube of described power-down retaining circuit for subsequent use and external power source input, be connected with equally booster circuit.
4. power-down retaining circuit as claimed in claim 1, it is characterized in that, described power-down retaining circuit for subsequent use also comprises control switch, and the control switch of described power-down retaining circuit for subsequent use is connected between the energy-storage travelling wave tube and power output end of described power-down retaining circuit for subsequent use.
5. power-down retaining circuit as claimed in claim 2 is characterized in that, described antireflux device is diode.
6. main control device, it is characterized in that, comprise: power circuit, electric source monitoring circuit and control circuit, described power circuit is connected with control circuit with described electric source monitoring circuit respectively, described power circuit comprises power-down retaining circuit, described power-down retaining circuit comprises: primary power-down retaining circuit and at least one power-down retaining circuit for subsequent use, described primary power-down retaining circuit comprises energy-storage travelling wave tube and the control switch that is connected, described power-down retaining circuit for subsequent use comprises energy-storage travelling wave tube, the energy-storage travelling wave tube of described primary power-down retaining circuit also is connected with the external power source input, described control switch also is connected with power output end, the energy-storage travelling wave tube of described power-down retaining circuit for subsequent use and the energy-storage travelling wave tube of described primary power-down retaining circuit be connected the external power source input and be connected.
7. main control device as claimed in claim 6 is characterized in that, the control end of the control switch of described primary power-down retaining circuit is connected with described control circuit.
8. main control device as claimed in claim 6 is characterized in that, also is connected with the antireflux device between the energy-storage travelling wave tube of described primary power-down retaining circuit and external power source input; And, between the energy-storage travelling wave tube of described power-down retaining circuit for subsequent use and external power source input, be connected with equally the antireflux device.
9. main control device as claimed in claim 6 is characterized in that, also is connected with booster circuit between the energy-storage travelling wave tube of described primary power-down retaining circuit and external power source input; And, between the energy-storage travelling wave tube of described power-down retaining circuit for subsequent use and external power source input, be connected with equally booster circuit.
10. main control device as claimed in claim 6 is characterized in that, described power-down retaining circuit for subsequent use also comprises control switch, and the control switch of described power-down retaining circuit for subsequent use is connected between the energy-storage travelling wave tube and power output end of described power-down retaining circuit for subsequent use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220171318 CN202696263U (en) | 2012-04-20 | 2012-04-20 | Power-down holding circuit and master control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220171318 CN202696263U (en) | 2012-04-20 | 2012-04-20 | Power-down holding circuit and master control apparatus |
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| CN202696263U true CN202696263U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220171318 Expired - Lifetime CN202696263U (en) | 2012-04-20 | 2012-04-20 | Power-down holding circuit and master control apparatus |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580272A (en) * | 2013-11-15 | 2014-02-12 | 深圳市双赢伟业科技股份有限公司 | Time-delay circuit for outage of power source |
| CN103631677A (en) * | 2013-11-27 | 2014-03-12 | 上海电器科学研究院 | Method for keeping PLC device power-down data |
| CN104834610A (en) * | 2014-03-21 | 2015-08-12 | 中兴通讯股份有限公司 | Magnetic disk power-down protection circuit and method |
| CN106411154A (en) * | 2015-07-29 | 2017-02-15 | 雅达电子国际有限公司 | Power converter |
| CN106780832A (en) * | 2016-11-25 | 2017-05-31 | 陕西千山航空电子有限责任公司 | A kind of protection type audio frequency and video composite record device |
| CN107767489A (en) * | 2017-09-13 | 2018-03-06 | 陕西千山航空电子有限责任公司 | A kind of power supply module and power down control method for protecting logger |
| CN109257401A (en) * | 2017-07-14 | 2019-01-22 | 中兴通讯股份有限公司 | A kind of method and device of the power down process of video equipment |
| CN110568246A (en) * | 2019-05-17 | 2019-12-13 | 上海繁易信息科技股份有限公司 | Power failure alarm circuit and alarm method |
| CN113315360A (en) * | 2021-05-07 | 2021-08-27 | 北京军陶科技有限公司 | Anti-transient-outage power supply and equipment based on capacitor boosting energy storage |
-
2012
- 2012-04-20 CN CN 201220171318 patent/CN202696263U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580272A (en) * | 2013-11-15 | 2014-02-12 | 深圳市双赢伟业科技股份有限公司 | Time-delay circuit for outage of power source |
| CN103631677A (en) * | 2013-11-27 | 2014-03-12 | 上海电器科学研究院 | Method for keeping PLC device power-down data |
| CN103631677B (en) * | 2013-11-27 | 2016-07-06 | 上海电器科学研究院 | A kind of method that PLC device power-down data keeps |
| CN104834610A (en) * | 2014-03-21 | 2015-08-12 | 中兴通讯股份有限公司 | Magnetic disk power-down protection circuit and method |
| WO2015139432A1 (en) * | 2014-03-21 | 2015-09-24 | 中兴通讯股份有限公司 | Disk power failure protection circuit and method |
| CN106411154A (en) * | 2015-07-29 | 2017-02-15 | 雅达电子国际有限公司 | Power converter |
| CN106780832A (en) * | 2016-11-25 | 2017-05-31 | 陕西千山航空电子有限责任公司 | A kind of protection type audio frequency and video composite record device |
| CN109257401A (en) * | 2017-07-14 | 2019-01-22 | 中兴通讯股份有限公司 | A kind of method and device of the power down process of video equipment |
| CN107767489A (en) * | 2017-09-13 | 2018-03-06 | 陕西千山航空电子有限责任公司 | A kind of power supply module and power down control method for protecting logger |
| CN110568246A (en) * | 2019-05-17 | 2019-12-13 | 上海繁易信息科技股份有限公司 | Power failure alarm circuit and alarm method |
| CN110568246B (en) * | 2019-05-17 | 2021-09-14 | 上海繁易信息科技股份有限公司 | Power failure alarm circuit and alarm method |
| CN113315360A (en) * | 2021-05-07 | 2021-08-27 | 北京军陶科技有限公司 | Anti-transient-outage power supply and equipment based on capacitor boosting energy storage |
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