CN102437608A - Uninterruptible power supply (UPS) power supply system and disk array with built-in UPS power supply system - Google Patents
Uninterruptible power supply (UPS) power supply system and disk array with built-in UPS power supply system Download PDFInfo
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- CN102437608A CN102437608A CN2011104045224A CN201110404522A CN102437608A CN 102437608 A CN102437608 A CN 102437608A CN 2011104045224 A CN2011104045224 A CN 2011104045224A CN 201110404522 A CN201110404522 A CN 201110404522A CN 102437608 A CN102437608 A CN 102437608A
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Abstract
The invention relates to the technical field of uninterruptible power supply (UPS) power supply, and discloses a UPS power supply system, which comprises a direct current (DC)-DC converter, a battery charging circuit, a battery, a power supply selector switch circuit and a UPS system control unit, wherein the DC-DC converter, the battery charging circuit, the battery and the power supply selector switch circuit are sequentially connected, and are sequentially connected with a system power supply; the UPS system control unit is connected with the DC-DC converter, the battery charging circuit, the battery, the power supply selector switch circuit and a status signal of the system power supply; and the battery charging circuit is used for charging the battery. The invention also provides a disk array comprising the system. By the invention, the intelligent UPS power supply system is implemented, and has a small volume and low cost so as to be applied to the disk array. Under the control of the UPS system control unit, seamless connection, which cannot be realized by an external UPS power supply system, with a system to which power is supplied by the UPS power supply system can be realized.
Description
Technical field
The present invention relates to UPS power supply technique field, be specifically related to a kind of UPS electric power system and be built-in with the disk array of this system.
Background technology
Be accompanied by the raising of high reliability request; The operational environment of considering some disk array products is more abominable; The electric power system phenomenon of often cutting off the power supply; Frequent power down and the surge impact that powers on can cause the physical damnification that can not estimate to the electrical characteristic of whole system, cause the very big increase of cost.The demand of protection whole system normal shutdown when therefore the demand of electric supply installation is by power down.
Compare in the rugged environment in common power supply, when power down takes place, can use external UPS (Uninterruptible Power Supply, uninterrupted power supply) power supply to come power supply, thereby avoid system to receive physical damnification to system.Fig. 1 is a kind of external ups power schematic diagram commonly used.The defective that external ups power shown in Figure 1 exists is: volume is big, cost is high, because it is external equipment, design complexities is big when being used in combination with electric power system, and can not the function beyond the power supply be provided to system.
Summary of the invention
The technical problem that (one) will solve
Technical problem to be solved by this invention is: how to design a kind of little UPS electric power system of volume that is built in disk array that is applicable to.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of UPS electric power system, comprising:
DC-DC converter, battery charger, battery, power supply switching switch circuit and ups system control unit; Wherein,
Said DC-DC converter, battery charger, battery and power supply switching switch circuit connect successively, and said ups system control unit is connected with said DC-DC converter, battery charger, battery and power supply switching switch circuit respectively;
Said battery charger is used for to said battery charge;
Said power supply switching switch circuit is used for can not switching power switch during normal power supply when system power supply, thereby makes battery output electric weight;
Said ups system control unit is used to control charging rate, monitoring charging current, the power switch in the electric weight of monitoring battery and the control power supply diverter switch.
Preferably, said system also comprises the power connector that is connected with said ups system control unit.
Preferably, said battery charger adopts the MAX1873 chip.
Preferably, said power supply switching switch circuit comprises the MOSFET pipe and the diode D of series connection, and said MOSFET pipe is connected with said battery.
Preferably, said ups system control unit adopts the PIC16F819 chip.
Preferably, be connected with diode D1 between said DC-DC converter and the said battery charger.
Preferably, said system also comprises the diode D2 that is connected with said battery charger.
The present invention also provides a kind of disk array, and said disk array is built-in with described system.
(3) beneficial effect
Institute of the present invention designed system comprises battery charger, power supply switching switch circuit and ups system control unit; Because being scheme by chip-scale, it realizes; Price is very cheap; Do not need particular structural, therefore realized that a kind of volume is little, cost is low, intelligentized UPS electric power system.Wherein, the effect that two set diode D1, D2 can play protective circuit prevents that voltage from pouring in down a chimney.Therefore system bulk of the present invention is little, cost is low, is applicable to disk array, the control through the ups system control unit solved external UPS electric power system inaccessiable, the seamless link that is powered system with it.
Description of drawings
Fig. 1 is a kind of external ups power schematic diagram commonly used;
Fig. 2 is the UPS electric power system structural representation and the execution mode signal thereof of the embodiment of the invention.
Embodiment
Regard to a kind of UPS electric power system proposed by the invention down and be built-in with the disk array of this system, specify in conjunction with accompanying drawing and embodiment.
As shown in Figure 2, the UPS electric power system of the embodiment of the invention comprises:
DC-DC converter, battery charger, battery, power supply switching switch circuit, ups system control unit and power connector.
DC-DC converter, battery charger, battery and power supply switching switch circuit connect successively, and the ups system control unit is connected with DC-DC converter, battery charger, battery and power supply switching switch circuit respectively; Power connector is connected with the ups system control unit, is connected with diode D1 between DC-DC converter and the battery charger, and system also comprises the diode D2 that is connected with said battery charger.Two diode D1, D2 play a protective role in system, prevent that voltage from pouring in down a chimney.
Battery charger is used for to said battery charge; Said power supply switching switch circuit is used for can not switching power switch during normal power supply when system power supply, thereby makes battery output electric weight; Said ups system control unit is used to control charging rate, monitoring charging current, the power switch in the electric weight of monitoring battery and the control power supply diverter switch.
Battery charger adopts the MAX1873 chip.The power supply switching switch circuit comprises the MOSFET pipe and the diode D (not shown) of series connection, and the MOSFET pipe is connected with battery.The ups system control unit adopts the PIC16F819 chip.
System power supply provides the power supply of 12.6V.DC-DC (Direct current, direct current) converter plays the effect of boosting, the 18V power supply that provides boost conversion to come for battery charger.
Battery is a rechargeable battery, is composed in series by three motive-power batteries in the present embodiment, and the ceiling voltage of each motive-power battery is 4.2V, and three are connected in series is exactly 12.6V, so need battery be charged to 12.6V.
UPS electric power system of the present invention is when work, and will supply power switching switch circuit and system power supply couple together, and specifically is that the diode D in the power supply switching switch circuit connects with system power supply.
Under the civil power normal condition; The ups system control unit always can the supervisory control system power supply state; Unusual or power down makes that the ups system control unit monitors unusual power_good signal let the UPS electric power system supply power to system through the power supply commutation circuit simultaneously when system power supply can not normal power supply as civil power AC 220V.
Will with cell safety be charged to 12.6V; Concrete implementation is: wherein a part adopts the system power supply series diode D of the 12.6V circuit supply that directly charges the battery; Because there is tube voltage drop in diode; Can only battery be charged to about 12.1V, can reach 3A in this phase I charging current; Second portion adopts said DC-DC converter to be raised to 18V voltage to 12.6V earlier, and the series diode D1 circuit supply that charges the battery just can be charged to 12.6V to battery then, owing to the restriction of chip, reaches 1.5A at the multipotency of this second stage charging current.
Based on above-mentioned design, the system of present embodiment possesses following function: the longest charging interval is no more than 1 hour; Can be in 30 minutes be charged to electric weight from under-voltage condition and satisfy the fully loaded operate as normal 60s of system; System control signal can control system open and close; Possesses indication to oneself state (output high level when 220V is on the throne, the square-wave signal of output 500HZ when the not on the throne and system of 220V can satisfy work 60s, output low level when the not on the throne and UPS of 220V can not satisfy system works 60s); In the discharge period, system can continue DC is provided 12V30A, the electric power output of DC5V 1.5A; 12VDC and 5V STBY power supply 60-90 second can be provided; It is up to standard to satisfy energy storage of 400 charge and discharge cycles inner modules and discharge parameter.
The present invention also provides a kind of disk array, and said disk array is built-in with described system.
System of the present invention is following in the workflow after the civil power outage:
1. take over immediately when civil power outage back UPS electric power system moment, its electric weight can frequency of transmission be 500Hz 80% o'clock system on the Power_good signal, and amplitude is the square-wave pulse signal of 5V.Specifically, can be that a frequency is 500Hz if battery electric quantity has been designed to the Power_good of UPS power supply signal at 80% o'clock, amplitude is the square-wave pulse signal of 5V.If it can be a high level that battery electric quantity, has been designed to the Power_good of UPS power supply signal greater than 80%, this moment, system can work on.When electric weight dropped to 80%, it was pulse signal that the ups system control unit detects power_good, just began to get into the normal shutdown flow process of whole magnetic disk clearing system.Under this electric weight, can satisfy system's normal shutdown.When battery electric quantity less than 80% the time, along with consumption of electric power_good signal little by little becomes low level from pulse.In a word, no matter electric weight what, unusual as long as system power supply occurs, cisco unity malfunction, the UPS electric power system is just taken over immediately, and lets system get into shutdown process as far as possible.
2. when detecting, ups system control unit (single-chip microcomputer) sends out interrupt signal after the Power_good signal is pulse signal at once to the CPU in the disk array; CPU receives after the interrupt signal through obtaining off signal after the 12C bus inquiry abnormality; Handle shutdown programm; Tell single-chip microcomputer shutdown service routine to accomplish through the 12C bus after finishing dealing with, single-chip microcomputer is turned off system through the Power_on signal.
3. single-chip microcomputer is in the state of cycle detection Power_good always, and when detecting Power_good and be high level, single-chip microcomputer through control Power_on signal, makes system boot at once.
Need to prove, when under UPS adapter state, when single-chip microcomputer finds that the Power_good signal is a square-wave pulse signal; Send out interrupt signal and give CPU; System gets into the normal shutdown flow process, and make Power_good signal from square-wave pulse become low level along with the progressively consumption of battery electric quantity in the system this moment; This moment, single-chip microcomputer was ignored the Power_good signal condition, continued to carry out the normal shutdown flow process.
Can find out that by above embodiment the present invention passes through the battery charger that is designed, supply power switching switch circuit and ups system control unit, has realized that a kind of volume is little, cost is low, intelligentized UPS electric power system.Wherein, the effect that two set diode D1, D2 can play protective circuit prevents that voltage from pouring in down a chimney.Therefore system bulk of the present invention is little, cost is low, is applicable to disk array, the control through the ups system control unit solved external UPS electric power system inaccessiable, the seamless link that is powered system with it.
Above execution mode only is used to explain the present invention; And be not limitation of the present invention; The those of ordinary skill in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also be made various variations and modification; Therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (8)
1. a UPS electric power system is characterized in that, comprising:
DC-DC converter, battery charger, battery, power supply switching switch circuit and ups system control unit; Wherein,
Said DC-DC converter, battery charger, battery and power supply switching switch circuit connect successively, and said ups system control unit is connected with said DC-DC converter, battery charger, battery and power supply switching switch circuit respectively;
Said battery charger is used for to said battery charge;
Said power supply switching switch circuit is used for can not switching power switch during normal power supply when system power supply, thereby makes battery output electric weight;
Said ups system control unit is used to control charging rate, monitoring charging current, the power switch in the electric weight of monitoring battery and the control power supply diverter switch.
2. the system of claim 1 is characterized in that, said system also comprises the power connector that is connected with said ups system control unit.
3. the system of claim 1 is characterized in that, said battery charger adopts the MAX1873 chip.
4. the system of claim 1 is characterized in that, said power supply switching switch circuit comprises the MOSFET pipe and the diode D of series connection, and said MOSFET pipe is connected with said battery.
5. the system of claim 1 is characterized in that, said ups system control unit adopts the PIC16F819 chip.
6. the system of claim 1 is characterized in that, is connected with diode D1 between said DC-DC converter and the said battery charger.
7. the system of claim 1 is characterized in that, said system also comprises the diode D2 that is connected with said battery charger.
8. a disk array is characterized in that, said disk array is built-in with each described system in the claim 1～7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104045224A CN102437608A (en) | 2011-12-07 | 2011-12-07 | Uninterruptible power supply (UPS) power supply system and disk array with built-in UPS power supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104045224A CN102437608A (en) | 2011-12-07 | 2011-12-07 | Uninterruptible power supply (UPS) power supply system and disk array with built-in UPS power supply system |
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| CN102437608A true CN102437608A (en) | 2012-05-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602701A (en) * | 2016-11-16 | 2017-04-26 | 北京圣福伦科技有限公司 | Financial equipment uninterruptible power supply circuit and power supply method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5777454A (en) * | 1996-05-29 | 1998-07-07 | Peco Ii, Inc. | Back-up battery management system for a DC power supply |
| CN1320992A (en) * | 2000-04-25 | 2001-11-07 | 乔建忠 | Intelligent DC UPS |
| CN1612436A (en) * | 2003-10-29 | 2005-05-04 | 仁宝电脑工业股份有限公司 | Bridge cell charging circuit device |
| CN201036001Y (en) * | 2007-04-13 | 2008-03-12 | 华为技术有限公司 | Magnetic disk array device |
| CN201374571Y (en) * | 2008-12-29 | 2009-12-30 | 北京中创瑞普科技有限公司 | Online UPS |
-
2011
- 2011-12-07 CN CN2011104045224A patent/CN102437608A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5777454A (en) * | 1996-05-29 | 1998-07-07 | Peco Ii, Inc. | Back-up battery management system for a DC power supply |
| CN1320992A (en) * | 2000-04-25 | 2001-11-07 | 乔建忠 | Intelligent DC UPS |
| CN1612436A (en) * | 2003-10-29 | 2005-05-04 | 仁宝电脑工业股份有限公司 | Bridge cell charging circuit device |
| CN201036001Y (en) * | 2007-04-13 | 2008-03-12 | 华为技术有限公司 | Magnetic disk array device |
| CN201374571Y (en) * | 2008-12-29 | 2009-12-30 | 北京中创瑞普科技有限公司 | Online UPS |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602701A (en) * | 2016-11-16 | 2017-04-26 | 北京圣福伦科技有限公司 | Financial equipment uninterruptible power supply circuit and power supply method |
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Application publication date: 20120502 |