CN207926268U - A kind of UPS circuits - Google Patents
A kind of UPS circuits Download PDFInfo
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- CN207926268U CN207926268U CN201820438962.9U CN201820438962U CN207926268U CN 207926268 U CN207926268 U CN 207926268U CN 201820438962 U CN201820438962 U CN 201820438962U CN 207926268 U CN207926268 U CN 207926268U
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- bypass
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- power supply
- backup battery
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Abstract
The utility model discloses a kind of UPS circuits, including the main circuit and bypass, the by-pass switch for selecting an output main circuit or bypass, the control power supply for controlling main circuit and by-pass switch that are serially connected between alternating current input and load further include：Bypass output control circuit and backup battery are forced, controls power supply and backup battery to force bypass output control circuit to provide power supply；Wherein, bypass output control circuit is forced to be used for when controlling power failure, lock-on circuit output bypass drive signal, control by-pass switch switches to bypass, while blocking inversion drive signal.The application is in the case of main circuit failure; especially control power failure is not enough to the case where control by-pass switch switching; it can be by forcing output control circuit lock-on circuit output bypass drive signal; by-pass switch is driven by backup battery; protection output not power down; ensure that output alternating current is remained to when controlling power failure carries out normal power supply, to protect load normal operation.
Description
Technical field
The utility model is related to uninterruptible power supply technical fields, more particularly to a kind of UPS circuits.
Background technology
USP (Uninterruptible Power System/Uninterruptible Power Supply), i.e., not between
Power-off source is that accumulator (being mostly plumbic acid maintenance-free accumulator) is connected with host, passes through the modular circuits such as host inverter
Direct current is converted into the system equipment of alternating current.It is mainly used for single computer, computer network system or other electric power electricity
The offers such as sub- equipment such as solenoid valve, pressure transmitter stabilization, continual supply of electric power.When alternating current input is normal, UPS is by city
It is supplied to load to use after electric voltage stabilizing, UPS at this time is exactly an AC system electricity voltage-stablizer, while it is also filled to self-contained battery
Electricity；When commercial power interruption (forced outage), UPS immediately by the direct current energy of battery, by the method for inverter switch transition to
Load continues to supply 220V alternating currents, makes load maintain to work normally and protects load soft and hardware without damage.UPS equipment is logical
Often protection can be provided to overtension or brownout.
In general, UPS includes a by-pass switch, in the case where main circuit is working properly, by-pass switch disconnects, at this time
UPS works in main circuit pattern.When main circuit failure, by-pass switch is closed so that by-path turn-on, load is by bypassing from city
Electricity takes electricity, proof load under normal circumstances will not power down in power grid.And how to ensure and be switched to side in time in main circuit failure
Road, it is ensured that output not power down is particularly important.
Utility model content
The purpose of this utility model is to provide a kind of UPS circuits, cannot be normal when system controls power failure with solution
Power supply influences the problem of load normal operation.
In order to solve the above technical problems, the utility model provides a kind of UPS circuits, including it is serially connected with alternating current input and load
Between main circuit and bypass, the by-pass switch for selecting an output main circuit or bypass, for control the main circuit with
And the control power supply of the by-pass switch, further include：Force bypass output control circuit and backup battery, the control power supply
Output control circuit is bypassed for the pressure power supply is provided with backup battery；
Wherein, the pressure bypass output control circuit is used in the control power failure, output bypass driving letter
Number, it controls the by-pass switch and switches to bypass, while blocking inversion drive signal.
Optionally, the pressure bypass output control circuit includes：Resistance R2, resistance R3, resistance R4, resistance R5, resistance
R6, three-terminal voltage-stabilizing pipe IC2, zener diode D9, diode D7, switching tube Q8, diode D8；
Wherein, the control terminal of the three-terminal voltage-stabilizing pipe IC2 is connected by the resistance R2 with the control power supply, and anode connects
Ground, cathode are connected by the resistance R4 with the backup battery；The common end of the three-terminal voltage-stabilizing pipe IC2 and the resistance R2
It is grounded by the resistance R3；
The common end of the three-terminal voltage-stabilizing pipe IC2 and the resistance R4 be separately connected the zener diode D9 cathode,
The anode of the diode D7；The cathode of the diode D7 is as bypass driving signal output end；
The anode of the zener diode D9 is connected with the controlled end of the switching tube Q8, the sun of the zener diode D9
Pole is grounded by resistance R5；The first end of the switching tube Q8 is grounded, and the second end of the switching tube Q8 passes through resistance R6 and institute
Backup battery is stated to be connected；
The switching tube Q8 is connected with the common end of the resistance R6 with the cathode of the diode D8, the diode D8
Anode as inversion driving signal output end.
Optionally, the switching tube Q8 is metal-oxide-semiconductor.
Optionally, the first end of the switching tube Q8 is the source electrode of metal-oxide-semiconductor, and second end is the drain electrode of metal-oxide-semiconductor, the switch
The controlled end of pipe Q8 is the grid of metal-oxide-semiconductor.
Optionally, the backup battery takes electricity from the bypass.
Optionally, the backup battery includes：Transformer, rectification module, Voltage stabilizing module, wherein the original of the transformer
Side is connected with the bypass, and secondary side is connect with the rectification module, Voltage stabilizing module successively, through the rectification module rectification, voltage stabilizing
After module voltage stabilizing, direct current is exported.
Optionally, the backup battery is+12V power supplys.
Optionally, the control power supply is+12V power supplys.
UPS circuits provided by the utility model, including the main circuit being serially connected between alternating current input and load and side
Road, the by-pass switch for selecting an output main circuit or bypass, the control power supply for controlling main circuit and by-pass switch, also
Including：It is that pressure bypass is defeated to force bypass output control circuit and backup battery, the control power supply and backup battery
Go out control circuit and power supply is provided；Wherein, bypass output control circuit is forced to be used for when controlling power failure, lock-on circuit output
Drive signal is bypassed, control by-pass switch switches to bypass, while blocking inversion drive signal.The application is in main circuit failure
In the case of, the case where power failure is not enough to control by-pass switch switching is especially controlled, it can be by forcing to export control electricity
Road lock-on circuit output bypass drive signal drives by-pass switch, protection output not power down, it is ensured that system by backup battery
Output alternating current is remained to when controlling power failure and carries out normal power supply, to protect load normal operation.
Description of the drawings
For the clearer technical solution for illustrating the utility model embodiment or the prior art, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
Other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structural schematic diagram of specific implementation mode of UPS circuits provided by the utility model；
The schematic diagram for the pressure bypass output control circuit that Fig. 2 is provided by the embodiment of the present application；
The backup battery schematic diagram that Fig. 3 is provided by the embodiment of the present application；
The control power supply schematic diagram that Fig. 4 is provided by the embodiment of the present application；
The operation principle schematic diagram for the UPS that Fig. 5 is provided by the embodiment of the present application.
Specific implementation mode
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.Obviously, described embodiment is only the utility model part
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
A kind of structural schematic diagram of specific implementation mode of UPS circuits provided by the utility model is as shown in Figure 1, the electricity
Road includes the main circuit 1 being serially connected between alternating current input and load and bypass 2, the side for selecting an output main circuit or bypass
Way switch 3, the control power supply 4 for controlling the main circuit 1 and the by-pass switch 3, in addition, further including：Force bypass
Output control circuit 5 and backup battery 6, the control power supply 4 and backup battery 6 are also pressure bypass output control electricity
Road 5 provides power supply.
Wherein, the pressure bypass output control circuit 5 is used in control 4 failure of power supply, lock-on circuit output
Drive signal is bypassed, the by-pass switch 3 is controlled and switches to bypass, while blocking inversion drive signal.
Wherein, it bypasses drive signal and inversion drive signal comes to the driving control signal of control panel, when inversion drives
When signal is normal, inverter normally exports；When bypass drive signal is normal, bypass output.It bypasses drive signal and inversion is driven
Dynamic signal interlocking.As a kind of specific implementation mode, switching time can be less than 1ms.
The application, can be by forcing the output bypass of output control circuit lock-on circuit in the case where controlling power failure
Drive signal, pass through backup battery drive by-pass switch, protection output not power down, it is ensured that system when controlling power failure still
Alternating current can be exported and carry out normal power supply, to protect load normal operation.
The schematic diagram for the pressure bypass output control circuit that the embodiment of the present application is provided is as shown in Fig. 2, the pressure bypasses
Output control circuit specifically includes：Resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, three-terminal voltage-stabilizing pipe IC2, voltage stabilizing two
Pole pipe D9, diode D7, switching tube Q8, diode D8.
Wherein, the control terminal of the three-terminal voltage-stabilizing pipe IC2 is connected by the resistance R2 with the control power supply, and anode connects
Ground, cathode are connected by the resistance R4 with the backup battery；The common end of the three-terminal voltage-stabilizing pipe IC2 and the resistance R2
It is grounded by the resistance R3.
The common end of the three-terminal voltage-stabilizing pipe IC2 and the resistance R4 be separately connected the zener diode D9 cathode,
The anode of the diode D7；The cathode of the diode D7 is as bypass driving signal output end.
The anode of the zener diode D9 is connected with the controlled end of the switching tube Q8, the sun of the zener diode D9
Pole is grounded by resistance R5；The first end of the switching tube Q8 is grounded, and the second end of the switching tube Q8 passes through resistance R6 and institute
Backup battery is stated to be connected.
The switching tube Q8 is connected with the common end of the resistance R6 with the cathode of the diode D8, the diode D8
Anode as inversion driving signal output end.
Wherein, the switching tube Q8 is metal-oxide-semiconductor.The first end of the switching tube Q8 is the source electrode of metal-oxide-semiconductor, and second end is
The drain electrode of metal-oxide-semiconductor, the controlled end of the switching tube Q8 are the grid of metal-oxide-semiconductor.
Based on any of the above embodiments, backup battery 6 takes from the bypass in UPS circuits provided herein
Electricity.
Specifically, the backup battery 6 includes：Transformer, rectification module, Voltage stabilizing module, wherein the original of the transformer
Side is connected with the bypass, and secondary side is connect with the rectification module, Voltage stabilizing module successively, through the rectification module rectification, voltage stabilizing
After module voltage stabilizing, direct current is exported.
Backup battery 6 can be+12V power supplys in the embodiment of the present application.The backup provided with reference to Fig. 3 the embodiment of the present application
Power supply schematic diagram, the backup battery 6 sampling go out the voltage of+12V by three-terminal voltage-stabilizing pipe voltage stabilizing to the AC power of bypass.
Based on any of the above embodiments, it is+12V power supplys that power supply 4 is controlled in UPS circuits provided herein,
The control power supply schematic diagram that the embodiment of the present application is provided is as shown in Figure 4.
2-4 is referring concurrently to attached drawing 5 below in conjunction with the accompanying drawings, to the operation principles of UPS circuits provided herein into traveling
One step elaborates.
As UPS or inverter normal operation, for forcing to bypass output control circuit, control power supply V1 is normal, inversion
Drive signal INV DR are high level, system inversion output.It is normal in control power supply V1 in respective figure 2, three ends
The cathode of voltage-stabiliser tube IC2 normallies, zener diode D9 is low level, therefore it is low level to bypass drive signal BY DR,
UPS will not force bypass to export.
When UPS or inverter are because of control power failure, the bypass drive signal and inversion drive signal in control panel are equal
Cisco unity malfunction, signal are low level, relatively low with door output level, are unable to normal driving thyristor.In respective figure 2, when
When controlling power supply V1 less than certain value, the IC2 shutdowns of three-terminal voltage-stabilizing pipe.Zener diode D9 reverse-conductings, cathode are high level, are opened
Pipe Q8 conductings are closed, bypass drive signal BY DR become high level, and inversion drive signal becomes low level.Therefore, when control power supply
When failure, bypass thyristor remains to work normally, proof load not power down.And it is exchanged since stand-by power supply V2 is sampled to bypass
Electricity, thus it is more reliable, as long as bypass alternating current is normal, ensure that+12V2 stablizes output, also it is ensured that in control power supply
When failure, it is ensured that output not power down.
The application can remain to that system is made reliably to switch to bypass, continue in the case where system controls power failure
Export alternating current, proof load not power down.And realize that circuit is simple, reliability is high, suitable for there are all kinds of bypass inversions to switch
UPS or inverter system.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with it is other
The difference of embodiment, just to refer each other for same or similar part between each embodiment.For being filled disclosed in embodiment
For setting, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related place is referring to method part
Explanation.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, depends on the specific application and design constraint of technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think to exceed the scope of the utility model.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
UPS circuits provided by the utility model are described in detail above.Specific case pair used herein
The principles of the present invention and embodiment are expounded, and the explanation of above example is only intended to help to understand that this practicality is new
The method and its core concept of type.It should be pointed out that for those skilled in the art, not departing from this practicality
Under the premise of new principle, several improvements and modifications can be made to this utility model, these improvement and modification also fall into this
In the protection domain of utility model claims.
Claims (8)
1. a kind of UPS circuits, including the main circuit being serially connected between alternating current input and load and bypass, for selecting an output master
Circuit or the by-pass switch of bypass, the control power supply for controlling the main circuit and the by-pass switch, which is characterized in that
Further include：Bypass output control circuit and backup battery, the control power supply and backup battery is forced to be bypassed for the pressure
Output control circuit provides power supply；
Wherein, the pressure bypass output control circuit is used in the control power failure, output bypass drive signal, control
It makes the by-pass switch and switches to bypass, while blocking inversion drive signal.
2. UPS circuits as described in claim 1, which is characterized in that the pressure bypasses output control circuit and includes：Resistance
R2, resistance R3, resistance R4, resistance R5, resistance R6, three-terminal voltage-stabilizing pipe IC2, zener diode D9, diode D7, switching tube Q8,
Diode D8；
Wherein, the control terminal of the three-terminal voltage-stabilizing pipe IC2 is connected by the resistance R2 with the control power supply, plus earth,
Cathode is connected by the resistance R4 with the backup battery；The common end of the three-terminal voltage-stabilizing pipe IC2 and resistance R2 is logical
Cross the resistance R3 ground connection；
The common end of the three-terminal voltage-stabilizing pipe IC2 and resistance R4 is separately connected the cathode, described of the zener diode D9
The anode of diode D7；The cathode of the diode D7 is as bypass driving signal output end；
The anode of the zener diode D9 is connected with the controlled end of the switching tube Q8, and the anode of the zener diode D9 is logical
Cross resistance R5 ground connection；The first end of the switching tube Q8 is grounded, the second end of the switching tube Q8 by resistance R6 with it is described standby
Part power supply is connected；
The switching tube Q8 is connected with the common end of the resistance R6 with the cathode of the diode D8, the sun of the diode D8
Pole is as inversion driving signal output end.
3. UPS circuits as claimed in claim 2, which is characterized in that the switching tube Q8 is metal-oxide-semiconductor.
4. UPS circuits as claimed in claim 3, which is characterized in that the first end of the switching tube Q8 is the source electrode of metal-oxide-semiconductor,
Second end is the drain electrode of metal-oxide-semiconductor, and the controlled end of the switching tube Q8 is the grid of metal-oxide-semiconductor.
5. such as Claims 1-4 any one of them UPS circuits, which is characterized in that the backup battery takes from the bypass
Electricity.
6. UPS circuits as claimed in claim 5, which is characterized in that the backup battery includes：It is transformer, rectification module, steady
Die block, wherein the primary side of the transformer is connected with the bypass, and secondary side connects with the rectification module, Voltage stabilizing module successively
It connects, after the rectification module rectification, Voltage stabilizing module voltage stabilizing, exports direct current.
7. UPS circuits as claimed in claim 6, which is characterized in that the backup battery is+12V power supplys.
8. such as Claims 1-4 any one of them UPS circuits, which is characterized in that the control power supply is+12V power supplys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820438962.9U CN207926268U (en) | 2018-03-29 | 2018-03-29 | A kind of UPS circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820438962.9U CN207926268U (en) | 2018-03-29 | 2018-03-29 | A kind of UPS circuits |
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| Publication Number | Publication Date |
|---|---|
| CN207926268U true CN207926268U (en) | 2018-09-28 |
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ID=63596946
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820438962.9U Active CN207926268U (en) | 2018-03-29 | 2018-03-29 | A kind of UPS circuits |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071698A (en) * | 2020-07-31 | 2020-12-11 | 科华恒盛股份有限公司 | Control circuit for preventing error suction of relay |
-
2018
- 2018-03-29 CN CN201820438962.9U patent/CN207926268U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071698A (en) * | 2020-07-31 | 2020-12-11 | 科华恒盛股份有限公司 | Control circuit for preventing error suction of relay |
| CN112071698B (en) * | 2020-07-31 | 2023-06-20 | 科华数据股份有限公司 | Control circuit for preventing relay from being attracted by mistake |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181010 Address after: 510530 seven self compiled seven, Nan Yun three road, hi tech Industrial Development Zone, Guangzhou, Guangdong. Patentee after: Guangdong KELONG Sheng Sheng Cloud Computing Technology Co., Ltd. Address before: 361000 torch garden, torch high tech Zone, Xiamen, Fujian 457 Co-patentee before: Kehua Technology Co., Ltd., Zhangzhou Patentee before: Xiamen Kehua Hengsheng Co., Ltd. |
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| TR01 | Transfer of patent right |