CN209298976U - A kind of communication base station uninterrupted power supply circuit - Google Patents
A kind of communication base station uninterrupted power supply circuit Download PDFInfo
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- CN209298976U CN209298976U CN201821868787.3U CN201821868787U CN209298976U CN 209298976 U CN209298976 U CN 209298976U CN 201821868787 U CN201821868787 U CN 201821868787U CN 209298976 U CN209298976 U CN 209298976U
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Abstract
The utility model discloses a kind of communication base station uninterrupted power supply circuits, including at least APFC circuit, first LLC circuit, battery, 2nd LLC circuit, inverter circuit, DC output interface, first switch module, AC output interface and main control unit, the main control unit and the APFC circuit, first LLC circuit, battery, 2nd LLC circuit, inverter circuit and first switch module are all connected with, exchange input is through APFC circuit, DC output interface is separately input into after the adjustment transformation of first LLC circuit rectifies, battery, battery and main control unit, 2nd LLC circuit connection, 2nd LLC circuit exchange input abnormal and cell voltage under normal circumstances by cell voltage resonant transformation after through inverter circuit, AC output interface output；First switch module connects between exchange input interface and AC output interface, disconnection when connecting abnormal when exchange input is normal.The application provide simultaneously direct current with exchange output, and use LLC technology, improve energy utilization rate, security performance and reliability.
Description
Technical field
The utility model relates to a kind of communication base station uninterrupted power supply circuits.
Background technique
UPS(uninterruptible power supply) it is commonly used in as Medical Devices, computer network system, communication base station system, electric power electricity
Sub- equipment provides stable, continual power supply, so that it is guaranteed that the stable operation of electrical equipment.UPS currently on the market is logical
Often only there is single exchange output, principle is that direct current is converted to alternating current by inverter by battery.It is converted in inversion
There can be energy loss in the process；Meanwhile with the intelligence of electrical equipment, low-voltage DC is mostly used to make inside electrical equipment
For power supply supply, when use, needs that network voltage is converted to supported direct current supply using power supply adaptor, therefore, uses
The electrical equipment of direct current is equipped with existing UPS, and there are following technological deficiencies:
1, there are double energy loss (UPS inversion passes through adapter for alternating current again and is converted to direct current), the energy is caused
Waste, cannot meet practical application request very well；
2, existing UPS has a single function, and is unable to satisfy intelligent Application demand；
3, security performance still needs to be further increased.
Therefore for drawbacks described above present in currently available technology, it is really necessary to be studied, to provide a kind of scheme, solution
Defect certainly existing in the prior art.
Utility model content
In order to overcome the shortcomings of the prior art, it is necessory to provide a kind of while there are the more of AC and DC output
Function uninterrupted power supply circuit, to meet the application demand of various occasions, further increase energy utilization rate, security performance and
Reliability.
In order to solve technical problem of the existing technology, the technical solution of the utility model is as follows:
A kind of communication base station uninterrupted power supply circuit includes at least APFC circuit, the first LLC circuit, battery, the 2nd LLC
Circuit, inverter circuit, DC output interface, first switch module, AC output interface and main control unit, the main control unit with
The APFC circuit, the first LLC circuit, battery, the 2nd LLC circuit, inverter circuit and first switch module are all connected with, and are exchanged defeated
Enter and is separately input into DC output interface, battery, battery and master control after APFC circuit, the adjustment transformation of the first LLC circuit rectifies
Unit, the 2nd LLC circuit connection, the 2nd LLC circuit input abnormal and cell voltage under normal circumstances for battery electricity in exchange
It is exported after pressing resonant transformation through inverter circuit, AC output interface；First switch module connect exchange input interface with exchange it is defeated
Between outgoing interface, connects when exchange input is normal, disconnected when abnormal.
Wherein,
The battery is for storing electric energy and powering；
The APFC circuit with exchange input be connected, for will exchange input carry out rectify and PFC after it is defeated
Out to the first LLC circuit；
The first LLC circuit is connected with the APFC circuit, exports after APFC circuit is inputted resonant transformation to electricity
Pond and DC output interface；
The DC output interface is connected with the first LLC circuit, battery, for exporting DC voltage, for outside
Equipment provides direct current supply；
The 2nd LLC circuit is controlled with the battery, for converting battery voltage to DC voltage；
The inverter circuit is connected with the 2nd LLC circuit, for DC voltage to be converted to alternating voltage and is led to
Cross the AC output interface output；
The first switch module is serially connected between exchange input and AC output interface；It is connected when exchange input is normal
The first switch module makes the AC output interface directly export electric main in turn, disconnects when exchange input is abnormal
The first switch module makes the AC output interface output inverter circuit alternating voltage in turn；
The main control unit and the APFC circuit, the first LLC circuit, battery, the 2nd LLC circuit, inverter circuit, first
Switch module is all connected with, and information and controls the APFC circuit, the first LLC circuit, the 2nd LLC circuit, inverse for getting parms
The work on power transformation road, first switch module.
Scheme as a further improvement, this application further include second switch module, and the second switch module is serially connected in
Between the battery, the 2nd LLC circuit and it is controlled by the main control unit, for cutting when the battery capacity is lower than preset value
The second switch module of breaking turns off the battery discharge in turn.
Scheme as a further improvement, this application further include input module, the input module and the main control unit
It is connected, is used for configuration circuit parameter or input control information.
Scheme as a further improvement, this application further include display module, the display module and the main control unit
It is connected, for showing uninterruptible power supply working condition.
Scheme as a further improvement, this application further include bluetooth module, the bluetooth module and the main control unit
It is connected, is connected by bluetooth module with controlling terminal (such as mobile phone, remote controler etc.), to realize intelligent radio control.
Scheme as a further improvement, this application further include communication interface, the communication interface and the main control unit
It is connected, for accessing external host, realizes networking cascade Mach-Zehnder interferometer.
Scheme as a further improvement, the main control unit include at least the first chip, the second chip, third chip and
Fourth chip, first chip are connected by the first bus with second chip；The third chip is total by second
Line is connected with second chip；The fourth chip is connected by third bus with second chip.
Scheme as a further improvement, first chip are connected with the APFC circuit, the first LLC circuit, use
Guarantee its normal work in obtaining its status information and exporting control signal with this；
Second chip is connected with the first LLC circuit, the 2nd LLC circuit, for obtaining its status information simultaneously
Control signal, which is exported, with this guarantees its normal work；
The third chip is connected with the 2nd LLC circuit, inverter circuit, for obtaining its status information and with this
Output control signal guarantees its normal work；
The fourth chip is connected with Peripheral Interface, for controlling Peripheral Interface.
Scheme as a further improvement, the first switch module use relay.
Scheme as a further improvement, the second switch module use metal-oxide-semiconductor.
Compared with prior art, the utility model uses LLC technology, thus while improving UPS power and efficiency
Greatly improve security performance；In addition, multiple mutually isolated control chips are arranged in the utility model, to easily realize intelligence
Multi-function extension can be changed, meet the application demand of various special occasions.
Detailed description of the invention
Fig. 1 is the structural block diagram of the utility model embodiment.
Fig. 2 is the structural block diagram of the utility model embodiment main control unit.
Following specific embodiment will further illustrate the utility model in conjunction with above-mentioned attached drawing.
Specific embodiment
Technical solution provided by the utility model is described further below with reference to attached drawing.
Referring to Fig. 1, it is shown the structural block diagram of communication base station uninterrupted power supply circuit provided by the utility model, is at least wrapped
Include APFC(active power factor correction) it is circuit, the first LLC circuit (controlled resonant converter, similarly hereinafter), battery, the 2nd LLC circuit, inverse
Power transformation road, DC output interface, first switch module, AC output interface and main control unit, wherein
The battery is for storing electric energy and the externally output (to main control unit and its module and interface, the 2nd LLC circuit)
Electric energy；
The APFC circuit with exchange input be connected, for will exchange input carry out rectify and PFC after it is defeated
Out to the first LLC circuit；
The first LLC circuit is connected with the APFC circuit, exports after APFC circuit is inputted resonant transformation to electricity
Pond and DC output interface；
The DC output interface is connected with the first LLC circuit, battery, sets for exporting DC voltage for outside
It is standby that direct current supply is provided；
The 2nd LLC circuit is controlled with the battery, for converting battery voltage to DC voltage；
The inverter circuit is connected with the 2nd LLC circuit, for DC voltage to be converted to alternating voltage and is led to
Cross the AC output interface output；
The first switch module is serially connected between exchange input and AC output interface, for when exchange input is normal
It connects the first switch module and then the AC output interface is made directly to export electric main；
The main control unit and the APFC circuit, the first LLC circuit, battery, the 2nd LLC circuit, inverter circuit, first
Switch module is all connected with, and information and controls the APFC circuit, the first LLC circuit, the 2nd LLC circuit, inverse for getting parms
The work on power transformation road, first switch module.
In a preferred embodiment, battery uses 48V high-capacity lithium battery, and exchange output is pure sine wave
220VAC, output power 1000W；Direct current output is 48V.Since first switch module is arranged, which is that alternating current is excellent
Antetype supports quickly bypass conversion, and wiring is simple, easy to maintain.
In the above-mentioned technical solutions, voltage transformation is realized using LLC resonant converter.In the prior art, controlled resonant converter
The advantages that, high efficiency high-power with its and high power density, is widely studied and is paid close attention in switch power technology application,
LLC series resonance translation circuit has wide input voltage range as a kind of special circuit topology, and output power range is wide
Feature can either meet the requirement of high frequency, and can reach higher conversion efficiency, be widely used by industry, application
It has been relatively mature.Meanwhile LLC realizes isolation output by transformer, to greatly improve UPS security performance.
In the above-mentioned technical solutions, AC and DC is realized by the way that DC output interface and AC output interface are arranged simultaneously
It exports simultaneously, so as to directly be that external dc electrical equipment is directly powered, substantially increases product use scope, meet each
The application demand of kind occasion.
In a preferred embodiment, which further includes second switch module, and the second switch module is serially connected in
The main control unit (is not shown) and is controlled by between the battery, the 2nd LLC circuit on figure, it is low for working as the battery capacity
The second switch module is cut off when preset value and then turns off the battery discharge.Further, first switch module uses
Relay；Second switch module uses metal-oxide-semiconductor.Since second switch module is arranged, it can be ensured that battery will not be because of overdischarge
And structural damage is caused, greatly extend the service life of battery.
In a preferred embodiment, which further includes input module, the input module and the main control unit
It is connected, is used for configuration circuit parameter or input control information.Wherein, input module is one group of key, thus easily real
Existing man-machine interactive operation.In a preferred embodiment, four operation buttons are set, carry out menu at different levels, power and energy,
Parameter setting etc., concrete function setting are as follows:
(1) upturning key: overturning on menu, changes the operations such as parameter setting, numerical value increase；
(2) downturning key: overturning under menu, changes the operation such as parameter setting shift
(3) it acknowledgement key: is shifted at the same level, same level menu, confirmation operation
(4) it return key: returns, cancel operation；
In a preferred embodiment, which further includes display module, described to be connected with the main control unit, is used
In display uninterruptible power supply working condition.Wherein, display module uses LCD liquid crystal display and LED light；LCD liquid crystal display is used for
Show main menu, wherein main menu can select each submenu, including operating parameter menu, state menu, fault warning with keyboard
Menu and Parameter Set-up Menu etc..To ensure operational safety, Parameter Set-up Menu is only used for the management service personnel of authorization, is needed
Input password can just be operated.LED light is realized various for realizing alarm function using the LED of a variety of different colours
Warning function, shown in table specific as follows:
1 LED signal of table indicates explanation
In a preferred embodiment, which further includes bluetooth module, the bluetooth module and the main control unit
It is connected, for being connected by bluetooth with controlling terminal to realize intelligent radio control.Match in general, being installed in controlling terminal
The APP application program of set, user can easily just realize UPS status inquiry and wireless control in controlling terminal APP.
In a preferred embodiment, which further includes communication interface, the communication interface and the main control unit
It is connected, for accessing external host to realize networking cascade Mach-Zehnder interferometer.Wherein, communication interface uses RS485 interface, has
RS485 protocol interface can conveniently realize networking cascade, can be inquired, be set and controlled at any time by host computer, realize
" three is distant " function is conducive to centralized management.Host computer and the present embodiment (main control unit) are master-slave relationships, all readings, setting
It should all be started by host computer with control process, main control unit is constantly in driven state.Monitoring major function has:
(1) real-time analogue data is sent to host computer；
(2) real-time switching value data is sent to host computer；
(3) receive the order such as the setting system parameter of host computer and the machine open/close of module；
(4) receive the control command of host computer transmission；
(5) alarm status is sent to host computer.
In the above-mentioned technical solutions, since main control unit is arranged, to easily realize UPS control, while intelligence is realized
Change Multi-function extension.Referring to fig. 2, it show the functional block diagram of main control unit in the utility model, main control unit includes at least the
One chip STM8S003F3P6, the second chip STM32F103R8T6, third chip TMS320F28027PTT and fourth chip
STM32F303R8T6, it is mutually isolated between each chip and pass through bus and realize data transmission, wherein first chip is logical
The first bus is crossed to be connected with second chip；The third chip is connected by second bus with second chip
It connects；The fourth chip is connected by the third bus with second chip.
Further, first chip is connected with the APFC circuit and the first LLC circuit, for obtaining its state
Information and with this export control signal guarantee its normal work；
Second chip is connected with the first LLC circuit and the 2nd LLC circuit, for obtaining its status information simultaneously
Control signal, which is exported, with this guarantees its normal work；
The third chip is connected with the 2nd LLC circuit and inverter circuit, for obtain its status information and with
This output control signal guarantees its normal work；
The fourth chip is connected with Peripheral Interface, for controlling Peripheral Interface (for connecting above-mentioned input module, showing
Show module, bluetooth module, communication interface).
In the above-mentioned technical solutions, due to using mutually isolated multiple chip controls UPS, to greatly improve UPS
Security performance.Herein described APFC circuit, the first LLC circuit, the 2nd LLC circuit, inverter circuit, first switch module,
Main control unit, interface etc. are the prior art, and the application passes through the reasonable design of the prior art, reduce energy loss, mention
Rise product function and security reliability.
The method and its core concept of the above embodiments are only used to help understand the utility model.It should refer to
It out, for those skilled in the art, without departing from the principle of this utility model, can also be to this
Some improvement and modification can also be carried out for utility model, these improvement and modification also fall into the protection scope of the utility model claims
It is interior.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (10)
1. a kind of communication base station uninterrupted power supply circuit, which is characterized in that include at least APFC circuit, the first LLC circuit, electricity
Pond, the 2nd LLC circuit, inverter circuit, DC output interface, first switch module, AC output interface and main control unit, it is described
Main control unit and the APFC circuit, the first LLC circuit, battery, the 2nd LLC circuit, inverter circuit and first switch module are equal
Connection, exchange input are separately input into DC output interface, battery after APFC circuit, the adjustment transformation of the first LLC circuit rectifies,
Battery and main control unit, the 2nd LLC circuit connection, the 2nd LLC circuit input abnormal and cell voltage normal condition in exchange
It is exported after the lower resonant transformation by cell voltage through inverter circuit, AC output interface；First switch module connects to be connect in exchange input
Between mouth and AC output interface, connects when exchange input is normal, disconnected when abnormal.
2. communication base station uninterrupted power supply circuit according to claim 1, which is characterized in that further include second switch mould
Block, the second switch module is serially connected between the battery, the 2nd LLC circuit and is controlled by the main control unit, for working as
The battery capacity cuts off the second switch module and then turns off the battery discharge when being lower than preset value.
3. communication base station uninterrupted power supply circuit according to claim 1 or 2, which is characterized in that it further include input module,
The input module is connected with the main control unit, is used for configuration circuit parameter or input control information.
4. communication base station uninterrupted power supply circuit according to claim 1 or 2, which is characterized in that it further include display module,
The display module is connected with the main control unit, for showing uninterruptible power supply working condition.
5. communication base station uninterrupted power supply circuit according to claim 1 or 2, which is characterized in that it further include bluetooth module,
The bluetooth module is connected with the main control unit, is connected by bluetooth module with controlling terminal.
6. communication base station uninterrupted power supply circuit according to claim 1 or 2, which is characterized in that the circuit further includes leading to
Communication interface, the communication interface are connected with the main control unit, for accessing external host to realize networking cascade Mach-Zehnder interferometer.
7. communication base station uninterrupted power supply circuit according to claim 1 or 2, which is characterized in that the main control unit is extremely
It less include the first chip, the second chip, third chip and fourth chip, first chip passes through the first bus and described second
Chip is connected；The third chip is connected by the second bus with second chip；The fourth chip passes through third
Bus is connected with second chip.
8. communication base station uninterrupted power supply circuit according to claim 7, which is characterized in that first chip with it is described
APFC circuit, the first LLC circuit are connected；
Second chip is connected with the first LLC circuit, the 2nd LLC circuit；
The third chip is connected with the 2nd LLC circuit, inverter circuit；
The fourth chip is connected with Peripheral Interface, for controlling Peripheral Interface.
9. communication base station uninterrupted power supply circuit according to claim 1 or 2, which is characterized in that the first switch mould
Block uses relay.
10. communication base station uninterrupted power supply circuit according to claim 2, which is characterized in that the second switch module
Using metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821868787.3U CN209298976U (en) | 2018-11-14 | 2018-11-14 | A kind of communication base station uninterrupted power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821868787.3U CN209298976U (en) | 2018-11-14 | 2018-11-14 | A kind of communication base station uninterrupted power supply circuit |
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| Publication Number | Publication Date |
|---|---|
| CN209298976U true CN209298976U (en) | 2019-08-23 |
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|---|---|---|---|
| CN201821868787.3U Active CN209298976U (en) | 2018-11-14 | 2018-11-14 | A kind of communication base station uninterrupted power supply circuit |
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| CN (1) | CN209298976U (en) |
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- 2018-11-14 CN CN201821868787.3U patent/CN209298976U/en active Active
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