CN106130317A - One-board power supply and television set - Google Patents
One-board power supply and television set Download PDFInfo
- Publication number
- CN106130317A CN106130317A CN201610556792.XA CN201610556792A CN106130317A CN 106130317 A CN106130317 A CN 106130317A CN 201610556792 A CN201610556792 A CN 201610556792A CN 106130317 A CN106130317 A CN 106130317A
- Authority
- CN
- China
- Prior art keywords
- changer
- conversion module
- switch
- power supply
- outfan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 claims abstract description 84
- 230000036772 blood pressure Effects 0.000 claims description 31
- 230000005611 electricity Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/63—Generation or supply of power specially adapted for television receivers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0032—Control circuits allowing low power mode operation, e.g. in standby mode
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The open a kind of one-board power supply of the present invention and television set, wherein, one-board power supply includes power panel, a DC/DC conversion module, the 2nd DC/DC conversion module and the first switch；Wherein, power panel, convert alternating current to unidirectional current, to be powered to a DC/DC conversion module and the 2nd DC/DC conversion module；Oneth DC/DC conversion module and the 2nd DC/DC conversion module, be converted into the voltage needed for mainboard by unidirectional current；In the standby state, mainboard controls the first switch OFF, and power panel stops powering to the 2nd DC/DC conversion module；Under open state, mainboard controls the first switch conduction, and power panel is powered to the 2nd DC/DC conversion module, gives main board power supply after the 2nd DC/DC conversion module conversion.Technical solution of the present invention reduces the power consumption of one-board power supply.
Description
Technical field
The present invention relates to power technique fields, particularly to a kind of one-board power supply and television set.
Background technology
Along with TV set intelligent level uprises, its starting up speed is the most slack-off.For accelerating the start under holding state
Speed, television set power panel in the standby state still give mainboard some components and parts be powered, such as to the DDR on mainboard,
MCU and remote control reception module etc. are powered.
The voltage remaining a need for power supply time standby is usually 1.5V, 3.3V and 5V, and existing way is by direct current DC/DC
The 12V unidirectional current that power panel of television is exported by changer is converted into 5V unidirectional current, then by direct current DC/DC changer by 5V's
Unidirectional current is converted into the unidirectional current of 3.3V, 1.5V respectively.Owing to direct current DC/DC changer conversion efficiency is about 80%, multistage
There is the problem that loss is bigger in DC converting, the most in the standby state, the stand-by power consumption of television set is the biggest, is unfavorable for joint
Can environmental protection.
Summary of the invention
The main object of the present invention is to provide a kind of one-board power supply, it is intended to reduce the power consumption under holding state.
For achieving the above object, the present invention proposes a kind of one-board power supply, and this one-board power supply includes power panel, a DC/
DC conversion module, the 2nd DC/DC conversion module and the first switch；Wherein,
Described power panel, converts alternating current to unidirectional current, with to a described DC/DC conversion module and described second
DC/DC conversion module is powered；
A described DC/DC conversion module and the 2nd DC/DC conversion module, needed for being converted into described mainboard by unidirectional current
Voltage；
In the standby state, described mainboard controls the first switch OFF, and described power panel stops becoming to described 2nd DC/DC
Change module for power supply；Under open state, described mainboard controls the first switch conduction, and described power panel becomes to described 2nd DC/DC
Change module for power supply, after described 2nd DC/DC conversion module conversion, give described main board power supply.
Preferably, the outfan of described power panel input and first with a described DC/DC conversion module respectively leaves
Close input connect, the outfan of a described DC/DC conversion module electrically connects with described mainboard, described first switch defeated
Go out end to electrically connect with described mainboard through described 2nd DC/DC conversion module, the controlled end of described first switch and described mainboard electricity
Connect.
Preferably, a described DC/DC conversion module includes a DC/DC changer and the 2nd DC/DC changer；Described
The input of the oneth DC/DC changer and the input of described 2nd DC/DC changer are connected with described power panel respectively.
Preferably, a described DC/DC conversion module also includes second switch, and the input of described second switch is with described
The outfan of the 2nd DC/DC changer connects, and the outfan of described second switch and controlled end all electrically connect with described mainboard；Its
In
When holding state, described mainboard controls described second switch and disconnects, and described 2nd DC/DC changer stops to institute
State main board power supply；When open state, described mainboard controls the conducting of described second switch, and described 2nd DC/DC changer is to institute
State main board power supply.
Preferably, described 2nd DC/DC conversion module include the 3rd DC/DC changer, the 4th DC/DC changer, the 5th
DC/DC changer；The input of described 3rd DC/DC changer, the input of the 4th DC/DC changer, the 5th DC/DC conversion
The input of device is all connected with the described first outfan switched, the outfan of described 3rd DC/DC changer, the 4th DC/DC
The outfan of changer, the outfan of the 5th DC/DC changer all electrically connect with described mainboard.
Preferably, described 2nd DC/DC conversion module also includes the 3rd switch, and the input of described 3rd switch is with described
The outfan of the 5th DC/DC changer connects, and the outfan of described 3rd switch electrically connects with described mainboard, described 3rd switch
Controlled end electrically connect with described mainboard；Wherein
When holding state, described mainboard controls the described 3rd and switches off, and described 5th DC/DC changer stops to institute
State main board power supply；When open state, described mainboard controls described 3rd switch conduction, and described 5th DC/DC changer is to institute
State main board power supply.
Preferably, a described DC/DC changer, described 2nd DC/DC changer, described 3rd DC/DC changer, institute
State the 4th DC/DC changer and described 5th DC/DC changer is buck DC/DC changer.
The present invention also proposes a kind of television set, and described television set includes one-board power supply as above, this one-board power supply bag
Include power panel, a DC/DC conversion module, the 2nd DC/DC conversion module and the first switch；Wherein, described power panel, will hand over
Stream electricity is converted into unidirectional current, to be powered to a described DC/DC conversion module and described 2nd DC/DC conversion module；Institute
State a DC/DC conversion module and the 2nd DC/DC conversion module, unidirectional current is converted into the voltage needed for described mainboard；Treating
Under machine state, described mainboard controls the first switch OFF, and described power panel stops powering to described 2nd DC/DC conversion module；
Under open state, described mainboard controls the first switch conduction, and described power panel is powered to described 2nd DC/DC conversion module,
Described main board power supply is given after described 2nd DC/DC conversion module conversion.
Technical solution of the present invention is by arranging power panel, a DC/DC conversion module, the 2nd DC/DC conversion module and
One switch, defines a kind of one-board power supply.Power panel is exported by the oneth DC/DC conversion module and the 2nd DC/DC conversion module
Directly to main board power supply after unidirectional current is converted, saves the multistage DC converting of centre, thus improve the electric energy of one-board power supply
Conversion efficiency, reduces the power consumption of one-board power supply.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the functional block diagram of one-board power supply one embodiment of the present invention；
Fig. 2 is the functional block diagram of one-board power supply further embodiment of the present invention；
Fig. 3 is the structural representation of the present invention the oneth DC/DC changer one embodiment；
Fig. 4 is the structural representation of the present invention the 2nd DC/DC changer one embodiment.
Drawing reference numeral illustrates:
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under not making creative work premise all its
His embodiment, broadly falls into the scope of protection of the invention.
It is to be appreciated that directional instruction in the embodiment of the present invention (such as up, down, left, right, before and after ...) is only used
In explaining relative position relation between each parts, motion conditions etc. under a certain particular pose (as shown in drawings), if should
When particular pose changes, then directionality instruction changes the most therewith.
It addition, the description relating to " first ", " second " etc. in the present invention is only used for describing purpose, and it is not intended that refer to
Show or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", "
Two " feature can express or implicitly include at least one this feature.It addition, the technical scheme between each embodiment can
To be combined with each other, but must be based on those of ordinary skill in the art are capable of, when the combination of technical scheme occurs
Conflicting will be understood that the combination of this technical scheme does not exists, the most not at the protection model of application claims when maybe cannot realize
Within enclosing.
The present invention proposes a kind of one-board power supply.
With reference to Fig. 1, in embodiments of the present invention, this one-board power supply includes DC/DC conversion module the 100, the 2nd DC/DC
Conversion module the 200, first switch 300 and power panel 400.
Described power panel 400, converts alternating current to unidirectional current, to a described DC/DC conversion module 100 and described
Two DC/DC conversion modules 200 are powered；Described DC/DC conversion module 100 and a 2nd DC/DC conversion module 200, will
Unidirectional current is converted into the voltage needed for mainboard；In the standby state, mainboard controls the first switch 300 shutoff, described power panel 400
Stop powering to described 2nd DC/DC conversion module 200；Under open state, described mainboard controls the first switch 300 conducting,
Described power panel 400 is powered to described 2nd DC/DC conversion module 200, after described 2nd DC/DC conversion module 200 conversion
To described main board power supply.
It should be noted that this one-board power supply is applied on a kind of television set, for the main board power supply of television set.Set on mainboard
Having main control chip, in the present embodiment, this main control chip uses the chip that model is MSD6A828 of stars at dawn quasiconductor.And on mainboard
Being provided with the DDR (Double Data Rate, dynamic RAM) for communication, when standby, DDR need to keep work, its work
It is 1.5V as voltage.Additionally, the communication unit of master chip and control unit need to keep work, its running voltage in the standby state
It is respectively 1.5V and 3.3V.
It is 12V that power panel 400 exports galvanic voltage, is converted into voltage through a DC/DC conversion module 100 and is
The unidirectional current output of 3.3V and 1.5V, to power to DDR, main control chip etc..Additionally, under open state, the first switch 300 is led
Logical, the unidirectional current of 12V gives main board power supply after the 2nd DC/DC conversion module 200 conversion；Time in the standby state, the first switch
300 turn off, and 12V unidirectional current is not powered.
In the present embodiment, the first switch 300 uses the metal-oxide-semiconductor that model is STM9435 of three companies of He Wei section.This metal-oxide-semiconductor
Break-make be controlled by main control chip.
Technical solution of the present invention is by arranging DC/DC conversion module the 100, a 2nd DC/DC conversion module 200, first
Switch 300 and power panel 400, define a kind of one-board power supply.Oneth DC/DC conversion module 100 and the 2nd DC/DC converts mould
Directly to main board power supply after unidirectional current that power panel 400 is exported by block 200 is converted, save the multistage DC converting of centre, from
And improve the energy conversion efficiency of one-board power supply, reduce the power consumption of one-board power supply.
Specifically, the outfan of described power panel 400 respectively with the input of a described DC/DC conversion module 100 and
The input of the first switch 300 connects, and the outfan of a described DC/DC conversion module 100 electrically connects with described mainboard, described
The outfan of the first switch 300 electrically connects with described mainboard through described 2nd DC/DC200 conversion module, described first switch 300
Controlled end be connected with described mainboard
Specifically, a described DC/DC conversion module 100 includes DC/DC changer 110 and a 2nd DC/DC conversion
Device 120；The input of a described DC/DC changer 110 and the input of described 2nd DC/DC changer 120 respectively with institute
State power panel 400 to connect.
It should be noted that a DC/DC changer 110 uses the blood pressure lowering core that model is MP1470 of core source quasiconductor
Sheet, for reducing to 1.5V by 12V voltage.The blood pressure lowering core that 2nd DC/DC changer 120 uses all ages company's model to be AOZ3101
Sheet, for reducing to 3.3V voltage by 12V voltage.
Further, a described DC/DC conversion module 100 also includes second switch 130, described second switch 130
Input is connected with the outfan of described 2nd DC/DC changer 120, and outfan and the controlled end of described second switch 130 are equal
Electrically connect with described mainboard；Wherein,
When holding state, described mainboard controls described second switch 130 and disconnects, and described 2nd DC/DC changer 120 stops
Only to described main board power supply；When open state, described mainboard controls described second switch 130 and turns on, and described 2nd DC/DC becomes
Parallel operation 120 is to described main board power supply.By arranging second switch 130, reduce the most unnecessary electricity consumption, reduce
The loss of one-board power supply.
Specifically, described 2nd DC/DC conversion module 200 includes the 3rd DC/DC changer the 210, the 4th DC/DC changer
220, the 5th DC/DC changer 230；The input of described 3rd DC/DC changer 210, the 4th DC/DC changer 220 defeated
Enter end, the 5th DC/DC changer 230 input all with described first switch 300 outfan be connected, described 3rd DC/DC
The outfan of changer 210, the outfan of the 4th DC/DC changer 220, the 5th DC/DC changer 230 outfan all and institute
State mainboard electrical connection.
It should be noted that the 3rd DC/DC changer 210 uses the blood pressure lowering chip that model is AOZ1268 of all ages company,
For 12V voltage is reduced to 1.1V voltage, to power to the chip core of main control chip；4th DC/DC changer 220 uses model
For the blood pressure lowering chip that model is MSH6110A of stars at dawn quasiconductor, for 12V voltage is reduced to 1.1V voltage, give master control core equally
The chip core of sheet is powered；5th DC/DC changer 230 uses the blood pressure lowering chip that model is AOZ3046 of all ages company, and being used for will
12V voltage reduces to 5V voltage, for being powered to the USB interface on mainboard.
Further, described 2nd DC/DC conversion module 200 also includes the 3rd switch 240, described 3rd switch 240
Input is connected with the outfan of described 5th DC/DC changer 230, the outfan of described 3rd switch 240 and described mainboard
Electrical connection, the controlled end of described 3rd switch 240 electrically connects with described mainboard；Wherein,
When holding state, described mainboard controls described 3rd switch 240 disconnection, and described 5th DC/DC changer 230 stops
Only to described main board power supply；When open state, described mainboard controls described 3rd switch 240 conducting, and described 5th DC/DC becomes
Parallel operation 230 is to described main board power supply.
It should be noted that the 3rd switch 240 uses the model of Xin Pengwei company to be that AP1621 realizes, the 3rd switch 240
For current limiting switch.When the 3rd switch 240 input currents exceed setting electric current, the 3rd switch 240 is automatically adjusted and reaches output electricity
Flow constant purpose, in addition the 3rd switch function such as 240 the most restricted outputs and overtemperature protection.
In the present embodiment, a described DC/DC changer 110, described 2nd DC/DC changer 120, described 3rd DC/
DC changer 210, described 4th DC/DC changer 220 and described 5th DC/DC changer 230 are buck DC/DC and become
Parallel operation.It can be readily appreciated that the DC/DC changer of boost type or step-down/up type according to practical situation, also can be able to be used.
With reference to Fig. 3, in the present embodiment, a DC/DC changer 110 include the first blood pressure lowering chip U1, the first resistance R1, the
Two resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the first electric capacity C1,
Two electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5, the 6th electric capacity C6 and the first inductance L1；First blood pressure lowering chip
Including earth terminal GND, outfan SW, power input IN, bootstrapping end BST and feedback end FB.
First end of the first resistance R1 is connected with power panel 400 outfan, second end of the first resistance R1 and the first blood pressure lowering
The power input IN of chip U1 connects；The earth terminal ground connection of the first blood pressure lowering chip U1；First end and first of the first electric capacity C1
The power input IN of blood pressure lowering chip U1 connects, and the second end ground connection of the first electric capacity C1, the second electric capacity C2 is parallel to the first electric capacity
C1 two ends；The outfan of first end of the second resistance R2 and the first switch 300 connects, second end of the second resistance R2 and the first electricity
Second end of resistance R1 connects；First end of the 3rd resistance R3 and second end of the first resistance R1 connect, the second of the 3rd resistance R3
End is connected with Enable Pin EN of the first blood pressure lowering chip U1；First end of the 4th resistance R4 and the bootstrapping end BST of the first blood pressure lowering chip U
Connecting, second end of the 4th resistance R4 connects through first end of the 3rd electric capacity C3 and the first inductance L1, the second of the first inductance L1
End is the 1.5V voltage output end of a DC/DC changer 110, and first end of the first inductance L1 is also with the first blood pressure lowering chip U1's
Outfan connects；First end of the 5th resistance R5 and the feedback end FB of the first blood pressure lowering chip U1 connect, the second of the 5th resistance R5
The first end through the 6th resistance R6 and the 7th resistance R7 is held to connect, second end of the 7th resistance R7 and second end of the first inductance L1
Connecting, first end of the 8th resistance R8 and second end of the 5th resistance R5 connect, the second end ground connection of the 8th resistance R8；4th electricity
Second end of the first end and the first inductance L1 that hold C4 connects, the second end ground connection of the 4th electric capacity C4, the 5th electric capacity C5 and the 6th
Electric capacity C6 is all parallel to the 4th electric capacity C4 two ends.
It should be noted that the 6th resistance R6, the 7th resistance R7 and the 8th resistance R8 are feedback resistance, for regulation first
DC/DC changer 110 output voltage size.First resistance R1 and the second resistance R2 is optional device, has at system for TV set
When quickly starting function, the first resistance R1 needs to arrange, and the second resistance R2 is not provided with；If contrary system for TV set is without quickly opening
During dynamic function, the first resistance R1 is vacant, and the second resistance R2 needs to arrange.In the present embodiment, the first resistance R1 is arranged, and without arranging
Second resistance R2, when Enable Pin EN of the first blood pressure lowering chip U1 is high level, the first blood pressure lowering chip U1 starts working, output
1.5V unidirectional current.
With reference to Fig. 4, in the present embodiment, the 2nd DC/DC changer 120 include the second blood pressure lowering chip U2, the 9th resistance R9, the
Ten resistance R10, the 11st resistance R11, the 12nd resistance R12, the 13rd resistance R13, the 14th resistance R14, the 15th resistance
R15, the 7th electric capacity C7, the 8th electric capacity C8, the 9th electric capacity C9, the tenth electric capacity C10, the 11st electric capacity C11, the 12nd electric capacity C12
And the second inductance L2；Second blood pressure lowering chip U2 includes Enable Pin EN, power input VIN, outfan LX, earth terminal GND, feedback
End FB, compensation end COMP, common port VCC, bootstrapping end BST.
First end of the 7th electric capacity C7 is connected with the outfan of power panel 400, the second end ground connection of the 7th electric capacity C7, and the 8th
Electric capacity C8 and the 9th electric capacity C9 is all parallel to the 7th electric capacity C7 two ends；The earth terminal GND ground connection of the second blood pressure lowering chip U2；Second fall
First end of the outfan LX and the second inductance L2 of pressure chip U2 connects, and second end of the second inductance L2 is the 2nd DC/DC conversion
The 3.3V voltage output end of device 120；First end of the 9th resistance R9 and the power input VIN of the second blood pressure lowering chip U2 connect,
Second end of the 9th resistance R9 is through the tenth resistance R10 ground connection, Enable Pin EN of the second blood pressure lowering chip U2 and the of the 9th resistance R9
Two ends connect；First end of the 11st resistance R11 and the feedback end FB of the second blood pressure lowering chip U2 connect, the 11st resistance R11's
Second end ground connection, first end of the 12nd resistance R12 and the feedback end FB of the second blood pressure lowering chip U2 connect, the 12nd resistance R12
The second end through the 13rd resistance R13 and the second inductance L2 second end connect；The compensation end COMP warp of the second blood pressure lowering chip U2
First end of the 14th resistance R14 and the tenth electric capacity C10 connects, the second end ground connection of the tenth electric capacity C10, the second blood pressure lowering chip U2
Common port VCC through the tenth electric capacity C10 ground connection；The bootstrapping end BST of the second blood pressure lowering chip U2 is through the 12nd electric capacity C12 and the 15th
First end of resistance R15 connects, and second end of the 15th resistance R15 and first end of the second inductance L2 connect.
It should be noted that the 11st resistance R11, the 12nd resistance R12, the 13rd resistance R13 are feedback resistance, it is used for
Regulate the second blood pressure lowering chip U2 output voltage size.14th resistance R14 and the tenth electric capacity C10 is for regulation the second blood pressure lowering chip
Compensation control circuit within U2；Second inductance L2 is used for energy storage afterflow.When Enable Pin EN of the second blood pressure lowering chip U2 inputs height
During level, the second blood pressure lowering chip U2 exports 3.3V voltage.
The present invention by directly the unidirectional current of 12V being directly changed into the unidirectional current of 1.5V and 3.3V, eliminate multistage directly
Rheology is changed, thus improves the conversion efficiency of power supply, reduces television set power in the standby state and under open state
Loss, the advantage with environmental protection and energy saving.
The present invention also proposes a kind of television set, and this television set includes above-mentioned one-board power supply, the concrete knot of this one-board power supply
Structure, with reference to above-described embodiment, owing to this television set have employed whole technical schemes of above-mentioned all embodiments, the most at least has
All beneficial effects that the technical scheme of above-described embodiment is brought, this is no longer going to repeat them.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every at this
Under the inventive concept of invention, utilize the equivalent structure transformation that description of the invention and accompanying drawing content are made, or directly/indirectly use
The technical field relevant at other is included in the scope of patent protection of the present invention.
Claims (8)
1. an one-board power supply, it is characterised in that this one-board power supply includes power panel, a DC/DC conversion module, the 2nd DC/
DC conversion module and the first switch；Wherein,
Described power panel, converts alternating current to unidirectional current, with to a described DC/DC conversion module and described 2nd DC/DC
Conversion module is powered；
A described DC/DC conversion module and the 2nd DC/DC conversion module, be converted into the voltage needed for mainboard by unidirectional current；
In the standby state, described mainboard controls the first switch OFF, and described power panel stops converting mould to described 2nd DC/DC
Block is powered；Under open state, described mainboard controls the first switch conduction, and described power panel converts mould to described 2nd DC/DC
Block is powered, and gives described main board power supply after described 2nd DC/DC conversion module conversion.
2. one-board power supply as claimed in claim 2, it is characterised in that the outfan of described power panel is respectively with described first
The input of DC/DC conversion module and first switch input connect, the outfan of a described DC/DC conversion module with
Described mainboard electrically connects, and the outfan of described first switch electrically connects with described mainboard through described 2nd DC/DC conversion module, institute
The controlled end stating the first switch electrically connects with described mainboard.
3. one-board power supply as claimed in claim 2, it is characterised in that a described DC/DC conversion module includes a DC/DC
Changer and the 2nd DC/DC changer；The input of a described DC/DC changer and described 2nd DC/DC changer defeated
Enter end to be connected with described power panel respectively.
4. one-board power supply as claimed in claim 3, it is characterised in that a described DC/DC conversion module also includes that second opens
Closing, the input of described second switch is connected with the outfan of described 2nd DC/DC changer, the outfan of described second switch
And controlled end all electrically connects with described mainboard；Wherein,
When holding state, described mainboard controls described second switch and disconnects, and described 2nd DC/DC changer stops to described master
Plate is powered；When open state, described mainboard controls the conducting of described second switch, and described 2nd DC/DC changer is to described master
Plate is powered.
5. one-board power supply as claimed in claim 4, it is characterised in that described 2nd DC/DC conversion module includes the 3rd DC/DC
Changer, the 4th DC/DC changer, the 5th DC/DC changer；The input of described 3rd DC/DC changer, the 4th DC/DC
The input of changer, the input of the 5th DC/DC changer are all connected with the described first outfan switched, and the described 3rd
The outfan of DC/DC changer, the outfan of the 4th DC/DC changer, the 5th DC/DC changer outfan all with described master
Plate electrically connects.
6. one-board power supply as claimed in claim 5, it is characterised in that described 2nd DC/DC conversion module also includes that the 3rd opens
Closing, the input of described 3rd switch is connected with the outfan of described 5th DC/DC changer, the outfan of described 3rd switch
Electrically connecting with described mainboard, the controlled end of described 3rd switch electrically connects with described mainboard；Wherein,
When holding state, described mainboard controls the described 3rd and switches off, and described 5th DC/DC changer stops to described master
Plate is powered；When open state, described mainboard controls described 3rd switch conduction, and described 5th DC/DC changer is to described master
Plate is powered.
7. one-board power supply as claimed in claim 6, it is characterised in that a described DC/DC changer, described 2nd DC/DC
Changer, described 3rd DC/DC changer, described 4th DC/DC changer and described 5th DC/DC changer are blood pressure lowering
Formula DC/DC changer.
8. a television set, it is characterised in that described television set includes the veneer electricity as described in claim 1-7 any one
Source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610556792.XA CN106130317A (en) | 2016-07-14 | 2016-07-14 | One-board power supply and television set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610556792.XA CN106130317A (en) | 2016-07-14 | 2016-07-14 | One-board power supply and television set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106130317A true CN106130317A (en) | 2016-11-16 |
Family
ID=57283415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610556792.XA Pending CN106130317A (en) | 2016-07-14 | 2016-07-14 | One-board power supply and television set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106130317A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023483A (en) * | 2017-12-15 | 2018-05-11 | 合肥惠科金扬科技有限公司 | A kind of DC isolation power supply |
| CN108052193A (en) * | 2018-01-02 | 2018-05-18 | 上海市共进通信技术有限公司 | Power switch sequence circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201601534U (en) * | 2009-11-30 | 2010-10-06 | 康佳集团股份有限公司 | Power supply device |
| CN202750024U (en) * | 2012-09-09 | 2013-02-20 | 阿坝师范高等专科学校 | Power supply device and plasma display device |
| CN203261408U (en) * | 2013-05-14 | 2013-10-30 | 深圳创维－Rgb电子有限公司 | Single-path power supply device for main board and television main board |
| CN203289323U (en) * | 2013-05-21 | 2013-11-13 | Tcl通力电子（惠州）有限公司 | Power supply circuit and switching power supply |
| CN104252840A (en) * | 2014-09-11 | 2014-12-31 | 天津三星电子有限公司 | Driving circuit |
-
2016
- 2016-07-14 CN CN201610556792.XA patent/CN106130317A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201601534U (en) * | 2009-11-30 | 2010-10-06 | 康佳集团股份有限公司 | Power supply device |
| CN202750024U (en) * | 2012-09-09 | 2013-02-20 | 阿坝师范高等专科学校 | Power supply device and plasma display device |
| CN203261408U (en) * | 2013-05-14 | 2013-10-30 | 深圳创维－Rgb电子有限公司 | Single-path power supply device for main board and television main board |
| CN203289323U (en) * | 2013-05-21 | 2013-11-13 | Tcl通力电子（惠州）有限公司 | Power supply circuit and switching power supply |
| CN104252840A (en) * | 2014-09-11 | 2014-12-31 | 天津三星电子有限公司 | Driving circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023483A (en) * | 2017-12-15 | 2018-05-11 | 合肥惠科金扬科技有限公司 | A kind of DC isolation power supply |
| CN108052193A (en) * | 2018-01-02 | 2018-05-18 | 上海市共进通信技术有限公司 | Power switch sequence circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104393666B (en) | Power supply system for data center | |
| CN101247053B (en) | Battery-connected voltage-boosting and reducing converting circuit and device, DC back-up power device | |
| CN106357108B (en) | DC boosting high-voltage output circuit and direct current boosting power | |
| CN103190200A (en) | Driver device and driving method for driving a load, in particular an LED unit | |
| CN102684271B (en) | Electronic device, power supply control chip and power supply control method | |
| CN103162372A (en) | Air conditioner, RS485 bus system thereof and bus system control method | |
| CN109672339A (en) | A kind of multi-channel digital power supply | |
| CN201860261U (en) | Boost circuit | |
| CN106130317A (en) | One-board power supply and television set | |
| CN101527508A (en) | Voltage raising and reducing two-way voltage conversion circuit | |
| CN204205969U (en) | A kind of power supply changeover device and apply its PV air-conditioner system | |
| CN201039333Y (en) | Voltage conversion circuit and TV set with this circuit | |
| CN201904863U (en) | Distributed type set top box power supply system | |
| CN104242645B (en) | Method and device for controlling step-down circuits | |
| CN207896874U (en) | Expansible parallel operation DC-DC power source device | |
| CN207134838U (en) | A kind of voltage booster circuit for battery based on LoRa terminals | |
| CN102902336B (en) | The power supply link block of mainboard, mainboard and electronic equipment thereof | |
| CN202838920U (en) | Control system for liquid crystal display device and liquid crystal display device | |
| CN105450039A (en) | Power converter and photovoltaic air-conditioning system using the same | |
| CN201127007Y (en) | Energy-saving power supply for transformer theftproof system | |
| CN202840989U (en) | Power supply circuit | |
| CN208285221U (en) | A kind of power supply built-up circuit of electrical equipment mainboard | |
| CN207650589U (en) | A kind of novel communication control interface module | |
| CN207184149U (en) | A kind of road safety monitoring uninterrupted power supply circuit | |
| CN206506441U (en) | A kind of family expenses voltage stabilizing automaton |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1227557 Country of ref document: HK |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |
|
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: WD Ref document number: 1227557 Country of ref document: HK |