CN101685978B - Postpose type backup power system - Google Patents
Postpose type backup power system Download PDFInfo
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- CN101685978B CN101685978B CN 200810216425 CN200810216425A CN101685978B CN 101685978 B CN101685978 B CN 101685978B CN 200810216425 CN200810216425 CN 200810216425 CN 200810216425 A CN200810216425 A CN 200810216425A CN 101685978 B CN101685978 B CN 101685978B
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Abstract
A postpose type backup power system comprises a battery backup unit and relates to each function board assembly of data information device; wherein the battery backup unit is directly connected between the input terminal of each function board assembly and the output terminal of fore power transformer of each function board assembly in parallel; when commercial electricity and the fore power transformer of each function board assembly are in normal, and commercial electricity supplies power to each function board assembly of data information device by virtue of the fore power transformer of each function board assembly and battery in the battery backup unit is charged; and when commercial electricity is abnormal or the fore power transformer at the input terminal of each function board assembly of data information device is in fault, the battery backup unit directly supplies power to each function board assembly of data information device without any intermediate conversion link. The backup power system of the invention has the advantages of high conversion efficiency, good reliability, small volume and high power and is beneficial for installation, replacement and maintenance.
Description
[technical field]
The present invention relates to batteries charging and powering to the load, and the direct current power input is transformed to the power-supply system of direct current power output, relates in particular to the standby power system for data message equipment such as PC, server and memories.
[background technology]
Data message equipment such as PC, server, memory all need normal supply of electric power during work.In case outage, the content that its internal storage is preserved may disappear immediately.If not normal outage, cause the information in its internal memory to have little time to be saved on the memory devices such as hard disk, will cause information because losing fully or the imperfect value that loses that becomes, thereby waste a large amount of work energy and times, even cause enormous economic loss.And for the operating system of UNIX, if undesired shutdown, the system information in its internal memory not read-write also may cause system crash to hard disk, can't start again.In addition, hard disk in these equipment, though what use is magnetic storage medium, can be because of the outage loss of information, but unexpected power failure can make the hard disc physical magnetic head that carries out reading writing working damage, perhaps system file causes the file allocation table mistake when maintaining file system, thereby DISK to Image is scrapped.These equipment have a power failure suddenly or under-voltage power supply when work, just may bring the consequence that information is washed out and/or hard disc data is lost in its internal memory.
Under this background, the various back-up source solutions that comprise UPS (uninterrupted power supply), SPS (backing up/await orders power supply), BBU (battery backup unit) are arisen at the historic moment, especially UPS follows the development of power electronic technology, constantly weed out the old and bring forth the new, between many decades, achieved a brand-new industry.
Wherein: UPS-Uninterrupted Power Supply uninterrupted power supply: being a kind of energy storage device that contains, is critical piece with the inverter, the power-supply device of voltage stabilization and frequency stabilization output.When civil power is normally imported, UPS just uses supply load after civil power filtering, the voltage stabilizing, simultaneously to the battery charge in the equipment, energy is stored in this battery, when civil power interrupts because of a variety of causes or during input fault, the power conversion that UPS is about to battery in the equipment is that alternating current continues to use for load, makes load keep operate as normal.
SPS-Standby Power Supply backs up/await orders power supply: include the battery of a constant volume, when civil power interrupts because of a variety of causes or during input fault, can provide the power module of certain preparation time, its operation principle and structure are simpler than UPS.
BBU-Battery Backup Unit battery backup unit: be battery or battery pack, when civil power interrupts because of a variety of causes or during input fault, provides backup battery, generally do not possess the voltage stabilizing output function.
The prior art backup power system comprises three kinds of schemes:
First kind of scheme as shown in Figure 4, adopts UPS or SPS power supply to be arranged between civil power input and the AC/DC converter, when civil power just often civil power enter the AC/DC converter through UPS or SPS; When city's electrical anomaly, by UPS or SPS the energy content of battery of self is offered the AC/DC converter after changing, thereby continue to provide power supply to equipment.
Its shortcoming is as follows:
1. efficient is low
From the circuit box structure schematic diagram, as shown in Figure 4, this scheme is that UPS or SPS are placed before the AC/DC converter, rather than directly receive on each feature board (mainboard or backboard) of equipment, part energy has been lost in the conversion links of centre, because the conversion efficiency of intermediate link is limited, intermediate link is more many, and total efficient is more low.
2. poor reliability
Because the intermediate link of circuit such as AC/DC, DC/DC converter etc. as long as any one intermediate link breaks down, just late-class circuit loses electric power, even UPS or SPS are normal, provide electric power can not for each feature board (mainboard or backboard).
3. cost height
UPS or SPS itself comprise a lot of circuit functions unit, complex circuit, and structure is various, so Material Cost, design cost, manufacturing cost are all high.If realize UPS or SPS redundancy backup, cost is higher.
4. volume is big, takes up room
UPS or SPS often volume are bigger, are difficult to realize integrated with data message equipment.
Second kind of scheme, as shown in Figure 5, BBU (battery backup unit) places the input of DC/DC converter (generally be 48V input), when civil power interrupts because of a variety of causes or during input fault, provides power supply by its continuation to equipment.
Its shortcoming is as follows:
1. efficient is low
From the circuit box structure schematic diagram, as shown in Figure 5, this scheme is that BBU is placed before the DC/DC converter, rather than is directly connected on each feature board (mainboard or backboard) of equipment, and part energy has just lost at the DC/DC converter like this.
2. poor reliability
Because the intermediate link DC/DC converter of circuit is if break down, late-class circuit just loses electric power, even BBU is normal, electric power is provided can not for each feature board (mainboard or backboard).
3. volume is big, takes up room
The 48V battery pack generally needs a plurality of 12V or 6V storage battery to be composed in series, and often volume also is bigger.
4. it is difficult to safeguard
Storage battery need be made regular check on maintenance, and is because the 48V storage battery is general bigger, relatively heavier. and be not easy to change and install; Simultaneously because battery electrode and being fastenedly connected by cable end being connected generally of late-class circuit, so can't realize hot-swappable function.
The third scheme as shown in Figure 6, is that BBU is directly placed on each feature board of equipment (mainboard or backboard), when civil power interrupts because of a variety of causes or during input fault, directly gives functional unit (mainly being internal memory) power supply of equipment most critical by it.
Its shortcoming is as follows:
Because each feature board space is limited; general direct BBU capacity placed on it is all smaller; the power supply (mainly being internal memory) that can only provide the partial function circuit to need, and can't handle protection to other feature board comprises that artificial direct intervention handles more business process.
[summary of the invention]
The technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part and a kind of Postpose type backup power system is provided, this backup power system has conversion efficiency height, good reliability, volume is little and high-power advantage, and is convenient to install, changes and safeguards.
The technical scheme that the present invention solve the technical problem employing is:
A kind of Postpose type backup power system Postpose type backup power system is provided, comprises the battery backup unit, and relate to each feature board assembly of data message equipment; Described battery backup unit be directly parallel in described data message equipment each feature board assembly input and respectively between the output of this feature board assembly prime supply convertor; When civil power and each feature board assembly prime supply convertor just often, described civil power provides electric power for each feature board assembly of described data message equipment by each feature board assembly prime supply convertor, and the battery in the described battery backup unit is charged; When the prime supply convertor of each feature board assembly input of city's electrical anomaly or described data message equipment broke down, described battery backup unit did not need by any intermediate conversion links electric power to be provided directly for each feature board assembly of described data message equipment.
Above-mentioned battery backup unit is can be hot-swappable, the battery backup unit of redundancy backup, comprises input and output connector, hot-swappable circuit, charging circuit, rechargeable battery and output control circuit, and described input and output connector comprises input and output; The input of described input and output connector is electrically connected with described hot-swappable circuit, described hot-swappable circuit is electrically connected with charging circuit, described charging circuit is electrically connected to positive pole and the negative pole of described rechargeable battery, and the positive pole of described rechargeable battery and negative pole directly are electrically connected or are electrically connected to through output control circuit the output of described input and output connector.
Compare with prior art, the beneficial effect of Postpose type backup power system of the present invention is:
1, by reduce in the same circuit of back-up source in the middle of the series connection link, the inefficiency of having avoided prior art to cause has improved the conversion efficiency of backup power system, realizes green energy conservation; Simultaneously, also reduce probability of malfunction, improved the reliability of backup power system;
2, by can be hot-swappable, redundant, the miniaturization design, make single BBU be unlikely excessive, overweight, be convenient to install, change and safeguard;
3, adopt a plurality of BBU to satisfy equipment to powerful demand with the N+1 redundancy, namely want under the situation of N BBU the not enough problem of power when additionally BBU of increase prevents contingency in addition satisfying this device just;
4, avoided the shortcoming that prior art is expensive or the BBU capacity is little;
5, realize that back-up source both can be built in each data message equipment, integrated with this data message equipment; Also can be external, make things convenient for the expansion capacity.
[description of drawings]
Fig. 1 is the electric principle block diagram of Postpose type backup power system of the present invention;
Fig. 2 is the electric principle block diagram of the battery backup unit of described backup power system;
Fig. 3 is the electric principle schematic of output control circuit in the battery backup unit of described backup power system;
Fig. 4 is the electric principle block diagram of first kind of scheme of prior art power-supply system;
Fig. 5 is the electric principle block diagram of second kind of scheme of prior art power-supply system;
Fig. 6 is the electric principle block diagram of the third scheme of prior art power-supply system.
[embodiment]
Below in conjunction with each accompanying drawing the present invention is described in further detail.
Referring to Fig. 1, a kind of Postpose type backup power system 100 comprises battery backup unit 130, i.e. BBU, and relate to each feature board assembly 110 of data message equipment; Described battery backup unit 130 be directly parallel in described data message equipment each feature board assembly 110 input and respectively between the output of these feature board assembly 110 prime supply convertors, exactly battery backup unit 130 is parallel between the input of each feature board assembly 110 of the output of the preceding level power supply AC/DC converter 200 (not having DC/DC converter 300 in the data message equipment that has) of each feature board assembly 110 of data message equipment or DC/DC converter 300 and described data message equipment.When civil power and each each converter of feature board assembly 110 primes just often, described civil power provides electric power for each feature board assembly 110 of described data message equipment by each each converter of feature board assembly 110 primes, and the batteries in the battery backup unit 130 are charged, namely charge power supply is from the output of AC/DC converter 200 or DC/DC converter 300; When each converter of prime of each feature board assembly 110 input of city's electrical anomaly or described data message equipment breaks down; described battery backup unit 130 does not need by any intermediate conversion links electric power to be provided directly for each feature board assembly 110 of described data message equipment, guarantees that the late-class circuit of each feature board assembly 110 of data message equipment still works on.
Referring to Fig. 1 and Fig. 2, above-mentioned battery backup unit 130 is can be hot-swappable, the battery backup unit of redundancy backup, comprise input and output connector 131, hot-swappable circuit 132, charging circuit 133 and rechargeable battery 134, described input and output connector 131 comprises input 1311 and output 1312; The input 1311 of described input and output connector 131 is electrically connected with described hot-swappable circuit 132, described hot-swappable circuit 132 is electrically connected with charging circuit 133, described charging circuit 133 is electrically connected to positive pole and the negative pole of described rechargeable battery 134, and the positive pole of described rechargeable battery 134 and negative pole directly are electrically connected or are electrically connected to through output control circuit 135 output 1312 of described input and output connector 131.
Described rechargeable battery 134 is rechargeable batteries of high-discharge-rate, comprises analysing valve control type lead-acid accumulator battery and lithium ion battery.The English name of analysing valve control type lead-acid accumulator battery is Valve Regulated Lead Acid Battery (being called for short the VRLA battery), need not add acid during its basic characteristics are to use and add the water maintenance, battery is hermetically-sealed construction, can not leak acid, can the acid discharge mist yet, battery lid is provided with one-way exhaust valve (also being safety valve), the effect of this valve is to surpass certain value (representing with atmospheric pressure value usually) when the inside battery gas flow, namely when inside battery air pressure is elevated to certain value, vent valve is opened automatically, discharge gas, valve-closing prevents that air from entering inside battery then.
Be the operate as normal of guaranteeing the unlikely interruption data message of the plug equipment of battery backup unit 130 when safeguarding, battery backup unit 130 be provided with can hot-swappable function circuit.Hot-swappable circuit 132 mainly is be used to preventing under the situation of powered-down not, occurring big curtage fluctuation in these battery backup unit 130 plug processes and cause burning certain accessory, thereby cause the work of whole data message equipment undesired.This hot-swappable circuit 132 is prior art.
Referring to Fig. 2, for ease of monitoring and maintenance, above-mentioned input and output connector 131 also comprises pilot signal binding post 1313, can monitor the operating state of described battery backup unit 130 by this pilot signal binding post 1313.
Referring to Fig. 2, above-mentioned battery backup unit 130 also comprises output control circuit 135, and described output control circuit 135 is connected electrically between the output of described rechargeable battery 134 and described input and output connector 131; Described output control circuit 135 is used for the magnitude of voltage of rechargeable battery 134 voltage transformations in the described battery backup unit 130 to regulation, and rechargeable battery 134 discharging currents when guaranteeing bringing onto load simultaneously in the described battery backup unit 130 are unlikely to excessive and/or can over-discharge can.
Referring to Fig. 3, above-mentioned output control circuit 135 comprises two integrated circuit U2, U3, three field effect transistor CS9, CS11, CS15, two inductance L 1, L2, four resistance R 3～R5, R7 and four capacitor C 2, C7, C8, C25.Their annexation is as follows:
Referring to Fig. 3, the grid of described field effect transistor CS15 connects and enables control pin EN, source ground, and drain electrode connects the pin 28 of described integrated circuit U2; Be connected to resistance R 3 between the bipod 28,26 of described integrated circuit U2, be connected to described resistance R 4 between the bipod 27,26, and pin 26 is also by capacitor C 25 back ground connection, pin 25 is by resistance R 7 ground connection, bipod 24,22 direct ground connection, pin 23 is by capacitor C 2 ground connection, and pin 21 is connected with the pin 33 of described integrated circuit U3; The pin 31 of described integrated circuit U3 connects the grid of described field effect transistor CS11, be connected to capacitor C 7 between the bipod 32,38, pin 38 connects the drain electrode of described field effect transistor CS9, pin 34 ground connection, pin 35 connects the grid of described field effect transistor CS9, connects the pin 26 of described integrated circuit U2 after bipod 36,37 links to each other; The pin 26 of the described integrated circuit U2 of described inductance L 1 one terminations, the drain electrode of the described field effect transistor CS9 of its another termination reaches the source electrode that meets described field effect transistor CS11 by described capacitor C 8; Be connected to inductance L 2 between the source electrode of described two field effect transistor CS9, CS11; The source ground of described field effect transistor CS9; The drain electrode of described field effect transistor CS11 connects the pin 25 of described integrated circuit U2 by described resistance R 5.
Referring to Fig. 3, described field effect transistor CS9 is with field effect transistor CS10 parallel connection, and described field effect transistor CS11 is with field effect transistor CS12 parallel connection, i.e. the grid of described two field effect transistor in parallel, source electrode and drain electrode all is connected to each other respectively.
Referring to Fig. 3, above-mentioned output control circuit 135 also comprises two resistance R 2, R6, voltage stabilizing didoe ZD1 and three capacitor C 6, C23, C36.Two resistance R 2, R6 series connection are between the pin 37 of the pin 21 of integrated circuit U2 and integrated circuit U3; The negative pole of voltage stabilizing didoe ZD1 is connected between two resistance R 2, the R6, the plus earth of voltage stabilizing didoe ZD1; Capacitor C 6 is connected in parallel on voltage stabilizing didoe ZD1 two ends; Capacitor C 23 is connected between the pin 26 and ground of integrated circuit U2; Capacitor C 36 is connected between the drain electrode and ground of field effect transistor CS11.
Described integrated circuit U2 is non-synchronous rectification control chip, and this chip has permanent control function of power, and model is MC34063; Described integrated circuit U3 is that synchronous rectification drives chip, and model is ISL6613.Be described as follows: each mark pin 21 to 28 of integrated circuit U2 is respectively the switching tube collector terminal Switch Collector of integrated circuit U2, switching tube emitter exit Switch Emitter, timing capacitor terminals Timing Capacitor, power supply lower margin GND, voltage comparator inverting input Comparator Inverting Input, supply pin Vcc, load peak current detecting end I
PKSense and driving tube collector terminal Drive Collector; Each mark pin 31 to 38 of integrated circuit U3 is respectively that the last metal-oxide-semiconductor of integrated circuit U3 drives output pin UGATE, boostrap circuit output pin BOOT, pulsewidth debug signal input pin PWM, grounding leg GND, metal-oxide-semiconductor drives output pin LGATE, supply pin VCC, is used for supply pin PVCC and PHASE pin that metal-oxide-semiconductor drives down.
Referring to Fig. 1 to Fig. 3, the EN of above-mentioned output control circuit 135 enables control pin; When EN is high level, output control circuit 135 work that is under an embargo; When EN was low level, output control circuit 135 was allowed to work; EN directly is connected with preceding level power supply AC/DC converter 200 (not having DC/DC converter 300 in the data message equipment that has) or the PG signal of DC/DC converter 300 of each feature board assembly 110 of data message equipment, and whether this PG signal is normal in order to the output of indicating AC/DC converter 200 or DC/DC converter 300.The drain electrode of field effect transistor CS11 is the positive pole of output Vout.The pin 26 of integrated circuit U2 is the positive pole of input Vin, the i.e. positive pole of rechargeable battery 134.
Referring to Fig. 3, whole output control circuit 135 is Sepic translation circuits, be used for the magnitude of voltage of rechargeable battery 134 voltage transformations in the described battery backup unit 130 to regulation, rechargeable battery 134 discharging currents when guaranteeing bringing onto load simultaneously in the described battery backup unit 130 are unlikely to excessive and/or can over-discharge can.
The combination that asynchronous rectification control chip and synchronous rectification drive chip makes output control circuit 135 of the present invention to have realized high-power synchronous rectification Sepic topological transformation circuit with extremely low cost, and prior art Sepic translation circuit is not owing to there is special synchronous rectification control chip supporting, make the Sepic translation circuit can't be applied to large-power occasions, therefore efficient is low, also can't solve the problem of heat radiation.The combination technology that this asynchronous rectification control chip and synchronous rectification drive chip equally also is applicable to the translation circuit that Boost, Zeta, Cuk etc. are topological, realizes its high efficiency and high-power output.
Described battery backup unit 130 each several parts all are installed in the same housing and become one.Widen the scope of application of rechargeable battery 134, and be not limited to the drawback that factors such as the voltage of rechargeable battery 134 itself and connected mode are brought, and safer and attractive in appearance.
For guaranteeing the abundant reliability of battery backup unit 130, described battery backup unit 130 is selected for use according to the power consumption of each feature board assembly 110 of described data message equipment, and satisfy 110 pairs of powerful demands of each feature board assembly of this data message equipment with the N+1 redundancy, namely under the situation of 110 needs N of each the feature board assembly battery backup unit 130 that satisfies this data message equipment, additionally increase a described battery backup unit 130 in addition.
Described battery backup unit 130 can be built in each data message equipment, and is integrated with this data message equipment, and namely each feature board assembly 110 of described data message equipment is provided with N+1 the connector body adaptive with described input and output connector 131; The input and output connector 131 of N+1 described battery backup unit 130 directly is inserted into respectively in N+1 the described connector body on each feature board assembly 110 of described data message equipment, N+1 described connector body parallel connection is electrically connected to the input of each feature board assembly 110 of described data message equipment, wherein N 〉=1.Or, when mounted, earlier each described battery backup unit 130 is parallel to a total input and output connector, each feature board assembly 110 of described data message equipment is provided with a connector body adaptive with this total input and output connector, this total input and output connector directly is inserted in the described connector body on each feature board assembly 110 of described data message equipment, and described connector body is electrically connected to the input of each feature board assembly 110 of described data message equipment.
Or, described battery backup unit 130 also can be external, make things convenient for the expansion capacity, namely earlier each described battery backup unit 130 is together in parallel, described battery backup unit 130 after the whole parallel connection is arranged on outside each feature board assembly 110 of described data message equipment, is electrically connected with the input of each feature board assembly 110 of described data message equipment with the joint that has lead.
Referring to Fig. 3, because the integrated circuit U2 of output control circuit 135 has permanent control function of power, its power output just is limited on this rated value when being power output greater than the rated value of this circuit design, and can not increase again, is set by the resistance R 4 among Fig. 3.Such benefit is when avoiding 130 parallel runnings of a plurality of battery backups unit, after certain battery backup unit 130 overpower operation, protects the electric rechargeable battery 134 in the battery backup unit 130.Rated power such as each battery backup unit 130 is set at 200W (12V/16.6A), if the power that data message equipment needs is 1000W, the battery backup unit 130 general N+I standby redundancies that adopt, need 5+1 battery backup unit 130 parallel connections so, at this moment each battery backup unit 130 theoretic load is 166.6W, can not surpass 200W, but because certain factor causes load unbalanced, make output current moment of certain battery backup unit 130 surpass 16.6A, if be 20A, then its output voltage drops to 10V at once, keeping power output is that 200W is constant, because its output voltage drops down, also can fall after rise fast according to its output current of Ohm's law simultaneously, thereby keep the load balancing (be the finiteness load balancing, after the electric current off-rating, just carry out equilibrium exactly) of battery backup unit 130.
The above embodiment has only expressed preferred implementation of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention; Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention; Therefore, all equivalents and modifications of doing with claim scope of the present invention all should belong to the covering scope of claim of the present invention.
Claims (6)
1. a Postpose type backup power system (100) comprises battery backup unit (130), and relates to each feature board assembly (110) of data message equipment; It is characterized in that:
Described battery backup unit (130) be directly parallel in described data message equipment each feature board assembly (110) input and respectively between the output of this feature board assembly (110) prime supply convertor; When civil power and each feature board assembly (110) prime supply convertor just often, described civil power provides electric power for each feature board assembly (110) of described data message equipment by each feature board assembly (110) prime supply convertor, and the battery in the described battery backup unit (130) is charged; When the prime supply convertor of each feature board assembly (110) input of city's electrical anomaly or described data message equipment broke down, described battery backup unit (130) did not need by any intermediate conversion links electric power to be provided directly for each feature board assembly (110) of described data message equipment;
Described battery backup unit (130) is can be hot-swappable, the battery backup unit of redundancy backup, comprise input and output connector (131), hot-swappable circuit (132), charging circuit (133) and rechargeable battery (134), described input and output connector (131) comprises input (1311) and output (1312); The input (1311) of described input and output connector (131) is electrically connected with described hot-swappable circuit (132), described hot-swappable circuit (132) is electrically connected with charging circuit (133), described charging circuit (133) is electrically connected to positive pole and the negative pole of described rechargeable battery (134), and the positive pole of described rechargeable battery (134) and negative electricity are connected to the output (1312) of described input and output connector (131);
Described battery backup unit (130) also comprises output control circuit (135), and described output control circuit (135) is connected electrically between the output of described rechargeable battery (134) and described input and output connector (131); Described output control circuit (135) is a Sepic translation circuit, be used for the magnitude of voltage of rechargeable battery (134) voltage transformation in the described battery backup unit (130) to regulation, rechargeable battery (134) discharging current when guaranteeing bringing onto load simultaneously in the described battery backup unit (130) is unlikely to excessive and/or can over-discharge can.
2. Postpose type backup power system according to claim 1 is characterized in that:
Described input and output connector (131) also comprises pilot signal binding post (1313), can monitor the operating state of described battery backup unit (130) by this pilot signal binding post (1313).
3. Postpose type backup power system according to claim 1 is characterized in that:
Described output control circuit (135) comprises two integrated circuit U2, U3, three field effect transistor CS9, CS11, CS15, two inductance L 1, L2, four resistance R 3～R5, R7 and four capacitor C 2, C7, C8, C25; Described integrated circuit U2 is non-synchronous rectification control chip, and model is MC34063; Described integrated circuit U3 is that synchronous rectification drives chip, and model is ISL6613;
The grid of described field effect transistor CS15 connects and enables control pin EN, source ground, and drain electrode meets the driving tube collector terminal Drive Collector of described integrated circuit U2; Be connected to resistance R 3 between the driving tube collector terminal Drive Collector of described integrated circuit U2 and the supply pin Vcc, the load peak current detecting end I of described integrated circuit U2
PKBe connected to resistance R 4 between Sense and the supply pin Vcc, the supply pin Vcc of described integrated circuit U2 is by capacitor C 25 ground connection, the voltage comparator inverting input Comparator Inverting Input of described integrated circuit U2 is by resistance R 7 ground connection, the power supply lower margin GND of described integrated circuit U2 and the direct ground connection of switching tube emitter exit Switch Emitter, the timing capacitor terminals Timing Capacitor of described integrated circuit U2 is by capacitor C 2 ground connection, and the switching tube collector terminal Switch Collector of described integrated circuit U2 is connected with the pulsewidth debug signal input pin PWM of described integrated circuit U3; The last metal-oxide-semiconductor of described integrated circuit U3 drives the grid that output pin UGATE meets described field effect transistor CS11, connect capacitor C 7 between the boostrap circuit output pin BOOT of described integrated circuit U3 and the PHASE pin, the PHASE pin of described integrated circuit U3 connects the drain electrode of described field effect transistor CS9, the grounding leg GND ground connection of described integrated circuit U3, the following metal-oxide-semiconductor of described integrated circuit U3 drives the grid that output pin LGATE meets described field effect transistor CS9, the supply pin VCC of described integrated circuit U3 and the supply pin Vcc that is used for connecing after supply pin PVCC that metal-oxide-semiconductor drives links to each other described integrated circuit U2; The supply pin Vcc of the described integrated circuit U2 of described inductance L 1 one terminations, the drain electrode of the described field effect transistor CS9 of its another termination reaches the source electrode that meets described field effect transistor CS11 by capacitor C 8; Be connected to inductance L 2 between the source electrode of described two field effect transistor CS9, CS11; The source ground of described field effect transistor CS9; The drain electrode of described field effect transistor CS11 meets the voltage comparator inverting input Comparator Inverting Input of described integrated circuit U2 by described resistance R 5.
4. Postpose type backup power system according to claim 3 is characterized in that:
Described field effect transistor CS9 is with field effect transistor CS10 parallel connection, and described field effect transistor CS11 is with field effect transistor CS12 parallel connection, i.e. the grid of described two field effect transistor in parallel, source electrode and drain electrode all is connected to each other respectively.
5. Postpose type backup power system according to claim 1 is characterized in that:
Described rechargeable battery (134) is the rechargeable battery of high-discharge-rate, comprises analysing valve control type lead-acid accumulator battery and lithium ion battery.
6. according to each described Postpose type backup power system of claim 1 to 5, it is characterized in that:
Described battery backup unit (130) each several part all is installed in the same housing and becomes one; Described battery backup unit (130) is selected for use according to the power consumption of each feature board assembly (110) of described data message equipment, and satisfy each feature board assembly (110) of this data message equipment to powerful demand with the N+1 redundancy, namely at each the feature board assembly (110) that satisfies this data message equipment only under the situation of needs N battery backup unit (130), the extra described battery backup unit (130) that increases in addition;
Each feature board assembly (110) of described data message equipment is provided with N+1 the connector body adaptive with described input and output connector (131), the input and output connector (131) of N+1 described battery backup unit (130) directly is inserted into respectively in N+1 the described connector body on each feature board assembly (110) of described data message equipment, N+1 described connector body parallel connection is electrically connected to the input of each feature board assembly (110) of described data message equipment, wherein N 〉=1; Or, during installation, earlier each described battery backup unit (130) is parallel to a total input and output connector, each feature board assembly (110) of described data message equipment is provided with the connector body adaptive with this total input and output connector, this total input and output connector directly is inserted in the described connector body on each feature board assembly (110) of described data message equipment, and described connector body is electrically connected to the input of each feature board assembly (110) of described data message equipment; Or, earlier each described battery backup unit (130) is together in parallel, described battery backup unit (130) after the whole parallel connection is arranged on outside each feature board assembly (110) of described data message equipment, is electrically connected with the input of each feature board assembly (110) of described data message equipment with the joint that has lead.
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| CN 200810216425 CN101685978B (en) | 2008-09-28 | 2008-09-28 | Postpose type backup power system |
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| CN 200810216425 CN101685978B (en) | 2008-09-28 | 2008-09-28 | Postpose type backup power system |
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| CN101685978A CN101685978A (en) | 2010-03-31 |
| CN101685978B true CN101685978B (en) | 2013-09-18 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102694414B (en) * | 2012-06-05 | 2015-03-11 | 哈尔滨工程大学 | Gapless automatic switching device for intelligent dual direct-current power supply |
| CN107294197A (en) * | 2017-06-27 | 2017-10-24 | 郑州云海信息技术有限公司 | A kind of solid state hard disc and its electric circuit of incense |
| CN109428384A (en) * | 2017-08-25 | 2019-03-05 | 上海华为技术有限公司 | A kind of backup power supply system of AC power supply device, circuit board and standby method for electrically |
| CN108681386A (en) * | 2018-04-03 | 2018-10-19 | 郑州云海信息技术有限公司 | A kind of server redundancy method of supplying power to and its for electric installation |
| CN108879940A (en) * | 2018-07-12 | 2018-11-23 | 李超 | Novel AC-DC n+1 power-supply system |
| CN109917892A (en) * | 2019-03-06 | 2019-06-21 | 苏州浪潮智能科技有限公司 | A kind of server system |
| CN111049255B (en) * | 2019-11-28 | 2023-07-28 | 广西电网有限责任公司南宁供电局 | Buffer type uninterruptible power supply parallel power distribution system |
| CN115291708A (en) * | 2022-09-29 | 2022-11-04 | 新华三信息技术有限公司 | Power failure protection method and device and electronic equipment |
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