CN207039477U - A kind of bimodulus Switching Power Supply - Google Patents
A kind of bimodulus Switching Power Supply Download PDFInfo
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- CN207039477U CN207039477U CN201720325389.6U CN201720325389U CN207039477U CN 207039477 U CN207039477 U CN 207039477U CN 201720325389 U CN201720325389 U CN 201720325389U CN 207039477 U CN207039477 U CN 207039477U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The utility model discloses a kind of bimodulus Switching Power Supply, including main power network, electromagnetic interface filter, rectifier bridge, the output of the main power network is connected through electromagnetic interface filter with rectifier bridge, it is characterised in that：Also include power factor correction module, MCU module, energy-storage battery, the first DC/DC modules, the 2nd DC/DC modules, the output end of the rectifier bridge and the input of power factor correction module are connected, and the output end of the power factor correction module connects through the first DC/DC modules to be loaded；The MCU module obtains electric current, the voltage value of the first DC/DC module output ends by Current Voltage acquisition module；The MUC modules output control signals to the first DC/DC modules to control to adjust the output signal of the first DC/DC modules；The energy-storage battery output end is connected through the 2nd DC/DC modules and loaded, and the MCU module output control signal adjusts the output of the 2nd DC/DC modules.It is of the present utility model simple in construction, the advantages of low cost high powered output, and it can be provided for load in the case where bulk power grid powers off and continue to provide electric energy.
Description
Technical field
The utility model belongs to electric and electronic technical field, more particularly to a kind of bimodulus Switching Power Supply.
Background technology
At present, with the development of Power Electronic Technique, the power circuit as electronic equipment heart obtains huge attention,
Especially there is the Switching Power Supply of efficient energy-efficient performance.Switching Power Supply is generally by input rectifying wave filter, power switch pipe, defeated
Go out rectifier filter and the part of controller 4 composition, its effect is that input ac voltage is converted into VD.Switch electricity
Source is the requirement for meeting modern electronic equipment development, is mainly opened to intellectuality, high frequency, miniaturization, especially small-power
The miniaturization in powered-down source.The product designed in the prior art is according to power output, main circuit switch device or perception member
Cost also will be because of power rise, into the rising of geometry number in the selection of part.Simultaneously in general Switching Power Supply, in main power network
The power supply of load can not be continued to when out of power, causes necessary device powers down to cause damage.
Utility model content
The utility model is intended at least solve one of technical problem present in prior art.Therefore, the utility model carries
For a kind of bimodulus Switching Power Supply, it is therefore an objective to had concurrently while reducing Switching Power Supply cost and the power output deficiency of main power network is provided
Compensation, and main power network can be monitored, remained to after main grid cut-off to load supplying.
To achieve these goals, the technical scheme that the utility model is taken is：A kind of bimodulus Switching Power Supply, including main electricity
Net, electromagnetic interface filter, rectifier bridge, the output of the main power network are connected through electromagnetic interface filter with rectifier bridge, it is characterised in that：Also include
Power factor correction module, MCU module, energy-storage battery, the first DC/DC modules, the 2nd DC/DC modules, the rectifier bridge it is defeated
Go out end to be connected with the input of power factor correction module, the output end of the power factor correction module is through the first DC/DC moulds
Block connection load；The MCU module obtains electric current, the voltage of the first DC/DC module output ends by Current Voltage Acquisition Circuit
Numerical value；The MUC modules output control signals to the first DC/DC modules to control to adjust the output of the first DC/DC modules letter
Number；The energy-storage battery output end is connected through the 2nd DC/DC modules and loaded, the MCU module output control signal regulation second
The output of DC/DC modules.
MCU module gathers the voltage data of main power network, the AC voltage sampling module by AC voltage sampling module
Output end connects MCU module.
PWM is equipped between described MCU module and the first DC/DC modules, between MCU module and the 2nd DC/DC modules
Generative circuit, PWM ripples caused by the PWM generative circuits to control the defeated of the first DC/DC modules and the 2nd DC/DC modules respectively
Go out voltage.
Filter circuit is set between the output end of the first DC/DC modules and load.
Fuse is set between the 2nd DC/DC modules and load.
Described MCU module connection alarm module, MCU module judge whether main power network powers off according to main voltage data
And alarm signal is sent after a loss of power.
The EMI filter circuit include electric capacity C140, C146, C142, common mode inductance L15, electric capacity C150, electric capacity C151,
Electric capacity C139, main power network output signal connect to form common-mode interference suppression circuit, differential mode through electric capacity C140 and electric capacity C146 successively
Suppress the common mode disturbances suppression that electric capacity C142, common mode inductance L15, differential mode suppress electric capacity C142, electric capacity C139 and electric capacity C151 compositions
Exported after circuit processed.
The power factor correction module includes switching tube Q17, fly-wheel diode VD2, control chip, the control chip
Using NPC1654, two output end shunt capacitance C144, electric capacity C144 one end connection Q17 of rectifier bridge source electrode, electric capacity C144
The other end pass through inductance connection Q17 drain electrode, the DRV pin of Q17 grid connection control chip, Q17 source ground, Q17
Drain electrode be connected with diode VD2 anode, diode VD2 negative electrode connects electric capacity C145 one end and diode VD1 respectively
Negative electrode, electric capacity C145 other end ground connection, diode VD1 anode is connected between electric capacity C144 and inductance L14；In electric capacity
Distinguish shunt capacitance C147, electric capacity C143, electric capacity C149, electric capacity C141 and electric capacity C148 successively in C145 both ends；Control chip
VCC ends input+12V power supplys, the BO pin and CS pin of control chip connect two output ends of rectifier bridge respectively, control chip
FB pin are connected to diode VD2 anode through resistance R140 and resistance R137 successively.
It is of the present utility model simple in construction, possess the advantages of low cost high powered output, and can be powered off in bulk power grid
In the case of, provided for load and continue to provide electric energy, reduced and lost caused by bulk power grid power-off, ensure that the reliable power supply of load.
Brief description of the drawings
This specification includes the following drawings, and shown content is respectively：
Fig. 1 is the structure principle chart of the utility model bimodulus Switching Power Supply；
Fig. 2 is EMI circuit theory diagrams；
Fig. 3 is power factor correction module schematic diagram.
Embodiment
Below against accompanying drawing, by the description to embodiment, specific embodiment of the present utility model is made further detailed
Thin explanation, it is therefore an objective to help those skilled in the art have to design of the present utility model, technical scheme it is more complete, accurate and
Deep understanding, and contribute to its implementation.
As shown in figure 1, a kind of bimodulus Switching Power Supply, it is used to ensure that continuing as load after bulk power grid powers off provides electricity
Can, or passing through the 2nd DC/DC module for compensating bulk power grid power outputs.Concrete scheme is：Including main power network, electromagnetic interface filter,
Power factor correction module, MCU module, energy-storage battery, the first DC/DC modules, the 2nd DC/DC modules and load, main power network
Output end connects the input of electromagnetic interface filter, and the output end of electromagnetic interface filter is connected with rectifier bridge, the output end and work(of rectifier bridge
The input connection of rate factor correction module, the output end of power factor correction module connects through the first DC/DC modules to be loaded,
MCU module obtains the output current voltage data of the first DC/DC modules by Current Voltage acquisition module；MCU module output control
Signal processed is to the first DC/DC modules controlling to adjust the output voltage of the first DC/DC modules；Energy-storage battery output end is through second
The connection load of DC/DC modules, the output control signal of MCU module is adjusting the output voltage of the 2nd DC/DC modules.In main electricity
During net normal power supply, the first DC/DC modules output voltage is controlled extremely according to the demand MCU module output control signal of load-side,
To provide operating voltage for load.Voltage x current acquisition module to gather the first DC/DC module voltage current power data, and
Regulation is input to the control signals of the first DC/DC modules to control the electric signal of the power of the first defeated setting of DC/DC modules.Main electricity
Net output services are insufficient and the power demand by that can not meet to load after the conciliation of the first DC/DC modules, can not reach power
In the case of demand, by controlling the output of energy-storage battery, the 2nd DC/DC module to compensate the output of the first DC/DC modules；
MCU module gathers the voltage data of main power network, the output of AC voltage sampling module by AC voltage sampling module
End connection MCU module.In main grid cut-off, MUC modules are changed into 0 according to the voltage data of collection, now, MCU output controls
Signal to the 2nd DC/DC modules, the 2nd DC/DC output voltages of regulation is powered through the 2nd DC/DC modules by battery, ensured
The normal power supply of load.
PWM generations are equipped between MCU module and the first DC/DC modules, between MCU module and the 2nd DC/DC modules
Circuit, PWM ripples caused by the PWM generative circuits to control the output of the first DC/DC modules and the 2nd DC/DC modules electric respectively
Pressure.The pwm signal dutycycle of the control signal control PWM generative circuits of MCU outputs, so as to adjust the electricity of DC/DC modules output
Pressure.
Fuse is set in the outlet side of the 2nd DC/DC modules, the outlet side of circuit connects fuse, to protect user
Side, load damage caused by preventing overcurrent.Filter circuit is set in the first DC/DC modules outlet side, filter circuit is by electricity
Hold the CLC π type filter circuits of inductance composition, be used for filtering interference signals in outlet side.Simultaneously can be in the first DC/DC modules
Input sets filter capacitor, can have the function that voltage stabilizing while filtering.
Simultaneously when bulk power grid powers off, in order to remind user in time, MCU module is connected with alarm module, for receiving
To after main grid cut-off signal, alert, user is reminded to preserve data in time, or perform corresponding measure.
The input of electromagnetic interface filter is connected with the output end of main power network, the output end of electromagnetic interface filter and the output of rectifier bridge
End connection.Electromagnetic interface filter be used for filter out High-frequency Interference, its physical circuit as shown in Fig. 2 EMI filter circuit include electric capacity C140,
C146, C142, common mode inductance L15, electric capacity C150, electric capacity C151, electric capacity C139, main power network output signal is successively through electric capacity C140
Connected with electric capacity C146 and to form common-mode interference suppression circuit, differential mode suppresses electric capacity C142, common mode inductance L15, differential mode suppress electric capacity
Exported after the common-mode interference suppression circuit of C142, electric capacity C139 and electric capacity C151 compositions.Simultaneously in electric capacity C139 and electric capacity C151
Indirectly.Output end, C139 other end connection C151 one end are drawn in C139 one end, the C151 other end draws output
Terminal, two lead-out terminals are connected on two inputs of rectifier bridge.Rectifier bridge is that Schottky diode forms bridge-type
Rectification circuit.The rectified half-waves of output are exported to power factor correction module, to improve suppression harmonic wave.
The circuit diagram of power factor correction module is illustrated in figure 3, power factor correction module includes switching tube Q17, continued
Diode VD2, control chip are flowed, the control chip uses NPC1654, two output end shunt capacitance C144 of rectifier bridge,
Electric capacity C144 one end connects Q17 source electrode, and the electric capacity C144 other end passes through inductance connection Q17 drain electrode, Q17 grid connection
The DRV pin of control chip, Q17 source ground, Q17 drain electrode are connected with diode VD2 anode, diode VD2 negative electrode
Electric capacity C145 one end and diode VD1 negative electrode, electric capacity C145 other end ground connection, diode VD1 anode are connected respectively
It is connected between electric capacity C144 and inductance L14, VD1 protection inductance has consumption loop in instantaneous backward voltage, without going to damage
Hardware；Distinguish shunt capacitance C147, electric capacity C143, electric capacity C149, electric capacity C141 and electric capacity successively at electric capacity C145 both ends
C148, the output end of power factor correction module is drawn by electric capacity C148 both ends；The VCC ends input+12V power supplys of control chip,
The BO pin and CS pin of control chip connect two output ends of rectifier bridge respectively, the FB pin of control chip successively through resistance R140 and
Resistance R137 is connected to diode VD2 anode.The GND pin ground connection of control chip, the VM pin of control chip pass through resistance eutral grounding.
The VCON pin of control chip are grounded through resistance R144 and electric capacity C155 successively, and electric capacity C158 is attempted by resistance R144 and electric capacity C155
The series circuit both ends of composition.
The utility model is exemplarily described above in association with accompanying drawing.Obviously, the utility model implements not
Limited by aforesaid way.As long as employ the various unsubstantialities that methodology and technical scheme of the present utility model are carried out
Improvement；Or it is not improved, above-mentioned design of the present utility model and technical scheme are directly applied into other occasions, at this
Within the protection domain of utility model.
Claims (8)
1. a kind of bimodulus Switching Power Supply, including main power network, electromagnetic interface filter, rectifier bridge, the output of the main power network filters through EMI
Device is connected with rectifier bridge, it is characterised in that：Also include power factor correction module, MCU module, energy-storage battery, the first DC/DC moulds
The input of block, the 2nd DC/DC modules, the output end of the rectifier bridge and power factor correction module connects, the power because
The output end of plain correction module is connected through the first DC/DC modules and loaded；The MCU module is obtained by Current Voltage acquisition module
Electric current, the voltage value of first DC/DC module output ends；The MCU module output control signals to the first DC/DC modules to
Control to adjust the output signal of the first DC/DC modules；The energy-storage battery output end is connected through the 2nd DC/DC modules and loaded, institute
State the output that MCU module output control signal adjusts the 2nd DC/DC modules.
A kind of 2. bimodulus Switching Power Supply as claimed in claim 1, it is characterised in that：MCU module passes through AC voltage sampling mould
Block gathers the voltage data of main power network, and the AC voltage sampling module output end connects MCU module.
A kind of 3. bimodulus Switching Power Supply as claimed in claim 1, it is characterised in that：Described MCU module and the first DC/DC moulds
Between block, PWM generative circuits, PWM ripples caused by the PWM generative circuits are equipped between MCU module and the 2nd DC/DC modules
To control the output voltage of the first DC/DC modules and the 2nd DC/DC modules respectively.
A kind of 4. bimodulus Switching Power Supply as claimed in claim 1, it is characterised in that：The output end of the first DC/DC modules
Filter circuit is set between load.
A kind of 5. bimodulus Switching Power Supply as claimed in claim 1, it is characterised in that：The 2nd DC/DC modules and load
Between fuse is set.
A kind of 6. bimodulus Switching Power Supply as claimed in claim 2, it is characterised in that：Described MCU module connection alarm module,
MCU module judges whether main power network powers off and send alarm signal after a loss of power according to main voltage data.
A kind of 7. bimodulus Switching Power Supply as claimed in claim 1, it is characterised in that：The EMI filter circuit includes electric capacity
C140, C146, C142, common mode inductance L15, electric capacity C150, electric capacity C151, electric capacity C139, main power network output signal is successively through electricity
Hold C140 and electric capacity C146 to connect to form common-mode interference suppression circuit, differential mode suppression electric capacity C142, common mode inductance L15, differential mode suppression
Exported after the common-mode interference suppression circuit that electric capacity C142, electric capacity C139 and electric capacity C151 processed are formed.
A kind of 8. bimodulus Switching Power Supply as claimed in claim 1, it is characterised in that：The power factor correction module includes opening
Pipe Q17, fly-wheel diode VD2, control chip are closed, the control chip uses NPC1654, two output end parallel connections of rectifier bridge
Electric capacity C144, electric capacity C144 one end connect Q17 source electrode, and the electric capacity C144 other end passes through inductance connection Q17 drain electrode, Q17
Grid connection control chip DRV pin, Q17 source ground, Q17 drain electrode is connected with diode VD2 anode, diode
VD2 negative electrode connects electric capacity C145 one end and diode VD1 negative electrode, electric capacity C145 other end ground connection, diode respectively
VD1 anode is connected between electric capacity C144 and inductance L14；Distinguish shunt capacitance C147, electricity successively at electric capacity C145 both ends
Hold C143, electric capacity C149, electric capacity C141 and electric capacity C148；The VCC ends input+12V power supplys of control chip, the BO pin of control chip
Connect two output ends of rectifier bridge respectively with CS pin, the FB pin of control chip are connected to through resistance R140 and resistance R137 successively
Diode VD2 anode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720325389.6U CN207039477U (en) | 2017-03-30 | 2017-03-30 | A kind of bimodulus Switching Power Supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720325389.6U CN207039477U (en) | 2017-03-30 | 2017-03-30 | A kind of bimodulus Switching Power Supply |
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| Publication Number | Publication Date |
|---|---|
| CN207039477U true CN207039477U (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720325389.6U Active CN207039477U (en) | 2017-03-30 | 2017-03-30 | A kind of bimodulus Switching Power Supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571826A (en) * | 2019-09-18 | 2019-12-13 | 河南柏科沃电子科技有限公司 | pile up formula reactive power compensation system |
| WO2022054064A1 (en) * | 2020-09-13 | 2022-03-17 | Redler Technologies Ltd | Versatile power stack unit |
-
2017
- 2017-03-30 CN CN201720325389.6U patent/CN207039477U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571826A (en) * | 2019-09-18 | 2019-12-13 | 河南柏科沃电子科技有限公司 | pile up formula reactive power compensation system |
| WO2022054064A1 (en) * | 2020-09-13 | 2022-03-17 | Redler Technologies Ltd | Versatile power stack unit |
| US11863059B2 (en) | 2020-09-13 | 2024-01-02 | Redler Technologies Ltd. | Versatile power stack unit |
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