CN106373539B - A kind of the power supply hot backup power supply system and method for liquid crystal display - Google Patents
A kind of the power supply hot backup power supply system and method for liquid crystal display Download PDFInfo
- Publication number
- CN106373539B CN106373539B CN201610970438.1A CN201610970438A CN106373539B CN 106373539 B CN106373539 B CN 106373539B CN 201610970438 A CN201610970438 A CN 201610970438A CN 106373539 B CN106373539 B CN 106373539B
- Authority
- CN
- China
- Prior art keywords
- power
- built
- power supply
- voltage
- liquid crystal
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/08—Fault-tolerant or redundant circuits, or circuits in which repair of defects is prepared
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Power Engineering (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses the power supply hot backup power supply systems and method of a kind of liquid crystal display, and wherein power supply system includes two built-in powers, one block of power redundancy backup processing circuit plate and two radiator fans.When a power supply breaks down, another power supply takes over its work at once, and after replacing power supply, and there are two power supplys to cooperate.It is mainly used in the power supply module of professional liquid crystal display exigent to power supply performance, it is ensured that normal operating conditions of the display in important display occasion.
Description
Technical field
The invention belongs to monitor power supply technical field, in particular to the power supply hot backup of a kind of liquid crystal display supplies
Electric system and method.
Background technique
Power redundancy backup is usually to be made of two duplicate power supplys, load by chip controls power supply
Weighing apparatus, when a power supply breaks down, another power supply takes over its work at once, and after replacing power supply, and there are two power supplys to assist
With work.Common liquid crystal display power module is mostly single built-in power or external adapter, is played to display
The effect of the module for power supply such as mainboard and backlight.But some important liquid crystal display devices, such as operating room display apparatus
Once power supply system breaks down, it will bring serious consequence to sufferer.Based on this, it is necessary to provide a set of for liquid crystal
Power redundancy backup system that show device, that performance is stable.
Summary of the invention
In order to solve the problems in the prior art, the present invention provides a kind of confessions of the power supply hot backup of liquid crystal display
Electric system and method, it is ensured that normal operating conditions of the display in important display occasion.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of power supply hot backup power supply system of liquid crystal display, comprising:
Two built-in powers, are built-in power A and built-in power B respectively,
Power redundancy backup processing circuit plate, including redundant module and DC-DC module；
Two fans are FAN1 fan A and FAN2 fan B respectively；
Wherein, two built-in powers respectively connect a fan, the voltage all the way in the built-in power A by IN1 with it is interior
The input port that the voltage all the way in power supply B connects redundant module by IN2 jointly is set, by OUTA after redundant module merges
Output, for powering to display stand-by circuit；
Another way voltage in the built-in power A is total by IN4 by the another way voltage in IN3 and built-in power B
With the input port of connection redundant module, exported after redundant module merges by OUTB；
The OUTB output voltage of the redundant module passes through DC-DC module again to carry out being converted to the different DC voltage in four tunnels
For display main board and backlight power supply；DC-DC module includes DC-DC1, DC-DC2, DC-DC3 and DC-DC4, OUTB output voltage
Different DC voltage OUT1-1, OUT1-2, the OUT1-3 in four tunnels is converted to by DC-DC1, DC-DC2, DC-DC3 and DC-DC4
It is display main board and backlight power supply with OUT1-4.
Display main board issues control signal PS_ON, is divided into SD1 and SD2 by power redundancy backup processing circuit plate, point
Not Kong Zhi built-in power A and built-in power B switch；
The IN1 and IN2 draws output fault-signal DET1 and DET2 respectively, feeds back in display main board control system
Two-way monitor pin, whether the working condition for judging built-in power A and built-in power B normal.
IN1 and IN2 is the main power input channel of high voltage, and input voltage range is 5V to 75V；IN3 and IN4 is low-voltage
Input channel is assisted, input voltage range is 3V to 16.5V.
Voltage all the way in the built-in power A is passed through by the voltage all the way of same size in IN1 and built-in power B
IN2 connects the input port of redundant module jointly, and the another way voltage in the built-in power A passes through in IN3 and built-in power B
The another way voltage of same size connects the input port of redundant module by IN4 jointly.
Described IN1, IN2, IN3 and IN4 first pass through the input port that filter capacitor reconnects redundant module.
It is two-way that display main board, which issues signal PS_ON points of control, wherein connect one end of R525 and R523 respectively all the way,
The other end of R523 connects one end of R524 and the base stage 1 of PMBT3906 triode Q55, the other end and PMBT3906 of R524 respectively
3 collectors of triode Q55 are grounded jointly, and the emitter 2 of PMBT3906 triode Q55 connects ZMM2V2 zener diode D47's
Anode, the other end of the R525 and the cathode of ZMM2V2 zener diode D47, which connect, exports control signal SD1；
The another way of control signal PS_ON connects one end of R526 and R531 respectively, and the other end of R531 connects R527's respectively
The base stage 1 of one end and PMBT3906 triode Q56, the other end of R527 and 3 collectors of PMBT3906 triode Q56 connect jointly
Ground, the emitter 2 of PMBT3906 triode Q56 connect the anode of ZMM2V2 zener diode D48, the other end of the R526 and
The cathode of ZMM2V2 zener diode D48, which connects, exports control signal SD2.
A kind of power supply hot backup method of supplying power to of liquid crystal display, including two built-in powers, power redundancy backup
Processing circuit plate and two fans, the power redundancy backup processing circuit plate are separately connected two built-in powers, built-in power
Respectively one fan of connection,
When a failure in two built-in powers, another built-in power is unaffected, and continues to work normally；
When one or both of two built-in powers break down, fault-signal DET1 or DET2 can be exported, is fed back
Display main board control system is given, is that failure has occurred in which power supply by display main board judgement.
With tele-control system switching channels, and compatible " low to open high pass " and " height opens low pass " is two different long-range
Control mode；" low to open high pass ", i.e. display main board issue low level control signal PS_ON, handle by power redundancy backup
Circuit board is divided into SD1 and SD2, controls the opening of built-in power A and built-in power B；Display main board issues high level control letter
Number PS_ON is divided into SD1 and SD2 by power redundancy backup processing circuit plate, controls the pass of built-in power A and built-in power B
It closes；" height opens low pass ", i.e. display main board issue high-level control signal PS_ON, by power redundancy backup processing circuit plate
It is divided into SD1 and SD2, controls the opening of built-in power A and built-in power B；Display main board issues low level control signal PS_
ON is divided into SD1 and SD2 by power redundancy backup processing circuit plate, controls the closing of built-in power A and built-in power B.
The remote controlled manner is " 1 control 2 ", i.e. a control line is realized by transistor switching circuit to built in two
Switch control while power supply.
Compared with prior art, the invention has the following advantages:
The present invention provides a kind of power supply hot backup power supply systems of liquid crystal display, are realizing wide-voltage range
While input, hot backup design is carried out using two blocks of identical internally-arranged type power supplys, one block of power supply breaks down wherein
When, another piece of energy gapless switch operating provides the power supply stability of liquid crystal display systems significantly, meets particular job field
The use demand of conjunction.
Detailed description of the invention
Fig. 1 is module frame chart of the invention；
Fig. 2 is the block diagram of power redundancy backup processing circuit plate in the present invention；
Fig. 3 is the local circuit schematic diagram of power redundancy backup processing circuit plate of the present invention.
Specific embodiment
Below with reference to embodiment, the present invention will be further explained.
A kind of power supply hot backup power supply system of liquid crystal display, comprising:
Two built-in powers, are built-in power A and built-in power B respectively,
Power redundancy backup processing circuit plate, including redundant module and DC-DC module；
Two fans are fan A and fan B respectively；
Wherein, two built-in powers respectively connect a fan, the voltage all the way in the built-in power A by IN1 with it is interior
The input port that the voltage all the way in power supply B connects redundant module by IN2 jointly is set, by OUTA after redundant module merges
Output, for powering to display stand-by circuit；
Another way voltage in the built-in power A is total by IN4 by the another way voltage in IN3 and built-in power B
With the input port of connection redundant module, exported after redundant module merges by OUTB；
The OUTB output voltage of the redundant module passes through DC-DC module again to carry out being converted to the different DC voltage in four tunnels
For display main board and backlight power supply；
Display main board issues control signal PS_ON, is divided into SD1 and SD2 by power redundancy backup processing circuit plate, point
Not Kong Zhi built-in power A and built-in power B switch；
The IN1 and IN2 draws output fault-signal DET1 and DET2 respectively, feeds back in display main board control system
Two-way monitor pin, whether the working condition for judging built-in power A and built-in power B normal.
IN1 and IN2 is the main power input channel of high voltage, and input voltage range is 5V to 75V；IN3 and IN4 is low-voltage
Input channel is assisted, input voltage range is 3V to 16.5V.
Voltage all the way in the built-in power A is passed through by the voltage all the way of same size in IN1 and built-in power B
IN2 connects the input port of redundant module jointly, and the another way voltage in the built-in power A passes through in IN3 and built-in power B
The another way voltage of same size connects the input port of redundant module by IN4 jointly.
Described IN1, IN2, IN3 and IN4 first pass through the input port that filter capacitor reconnects redundant module, IN1, IN2
Filtering 1, filtering 2 are first passed through respectively, reconnects the input port of redundancy 1, are exported after the merging of redundancy 1 by OUTA, for giving
The power supply of display stand-by circuit；IN3 and IN4 first passes through filtering 3 and filtering 4 respectively, reconnects the input port of redundancy 2, passes through
Redundancy 2 is exported after merging by OUTB, and OUTB output voltage passes through DC-DC1, DC-DC2, DC-DC3 and DC-DC4 again and is converted to four
Road different DC voltage OUT1-1, OUT1-2, OUT1-3 and OUT1-4 are display main board and backlight power supply.
It is two-way that display main board, which issues signal PS_ON points of control, wherein connect one end of R525 and R523 respectively all the way,
The other end of R523 connects one end of R524 and the base stage 1 of PMBT3906 triode Q55, the other end and PMBT3906 of R524 respectively
3 collectors of triode Q55 are grounded jointly, and the emitter 2 of PMBT3906 triode Q55 connects ZMM2V2 zener diode D47's
Anode, the other end of the R525 and the cathode of ZMM2V2 zener diode D47, which connect, exports control signal SD1；
The another way of control signal PS_ON connects one end of R526 and R531 respectively, and the other end of R531 connects R527's respectively
The base stage 1 of one end and PMBT3906 triode Q56, the other end of R527 and 3 collectors of PMBT3906 triode Q56 connect jointly
Ground, the emitter 2 of PMBT3906 triode Q56 connect the anode of ZMM2V2 zener diode D48, the other end of the R526 and
The cathode of ZMM2V2 zener diode D48, which connects, exports control signal SD2.
A kind of power supply hot backup method of supplying power to of liquid crystal display, including two built-in powers, power redundancy backup
Processing circuit plate and two fans, the power redundancy backup processing circuit plate are separately connected two built-in powers, built-in power
Respectively one fan of connection,
When a failure in two built-in powers, another built-in power is unaffected, and continues to work normally；
When one or both of two built-in powers break down, fault-signal DET1 or DET2 can be exported, is fed back
Display main board control system is given, is that failure has occurred in which power supply by display main board judgement.
With tele-control system switching channels, and compatible " low to open high pass " and " height opens low pass " is two different long-range
Control mode；" low to open high pass ", i.e. display main board issue low level control signal PS_ON, handle by power redundancy backup
Circuit board is divided into SD1 and SD2, controls the opening of built-in power A and built-in power B；Display main board issues high level control letter
Number PS_ON is divided into SD1 and SD2 by power redundancy backup processing circuit plate, controls the pass of built-in power A and built-in power B
It closes；" height opens low pass ", i.e. display main board issue high-level control signal PS_ON, by power redundancy backup processing circuit plate
It is divided into SD1 and SD2, controls the opening of built-in power A and built-in power B；Display main board issues low level control signal PS_
ON is divided into SD1 and SD2 by power redundancy backup processing circuit plate, controls the closing of built-in power A and built-in power B.
The remote controlled manner is " 1 control 2 ", i.e. a control line is realized by transistor switching circuit to built in two
Switch control while power supply.Compared with prior art, of the invention
A kind of power supply hot backup power supply system of liquid crystal display includes: two built-in display power supplys, one block of electricity
Source redundancy backup processing circuit plate and two radiator fans.In order to guarantee the stability of entire power supply system itself, built-in power
The fundamental performance parameter of type selecting should meet:
1, output voltage regulation is less than ± 5% V.2, output voltage ripple noise is less than ± 1% V.3, efficiency value is greater than
80%.4, has the function of remote control switch.5, there is overcurrent, over-voltage protecting function.6, there is 5Vsb output, and starting up
Time is no more than 1S.7, power supply gross output will be more than Overall Power Consumption 20%.8, power supply total weight is less than 1KG.
The technical solution of power redundancy backup processing circuit plate:
For different redundancy backup voltage requirements, input voltage is realized using the redundancy backup design chips of profession
1+1 backup, while according to the supply voltage demand of rear end mainboard, power circuit design is carried out using different DC-DC chips.Most
This power redundancy backup processing circuit plate is formd eventually.Specific design frame chart such as Fig. 1.
1, power designs.It is biggish that a kind of power supply hot backup power supply system of liquid crystal display is mainly used in power consumption
Large size liquid crystal display product, the design margin of maximum power dissipation will redundancies there are biggish floating range, in the design
The maximum current capacity of back-up processing circuit board at least should be greater than the 120% of display Overall Power Consumption.
2, ability is flowed.For the stability for guaranteeing two power modules, the dangerous phenomenon such as flow-reversing impingement is prevented, I
MOSFET pipe is added in the power input access front end of INT1, INT2, INT3, INT4 for preventing in two-way electric current to return
Stream, and play the role of sharing control per input power all the way.
3, noise-reducing design.It is a key link to the control of noise in power supply design.Designing herein mainly has at 3 points, first
The ripple control of input terminal voltage before this, using the built-in power of low ripple.Followed by the selection of filter capacitor, according to electricity
Source noise concentrates on the characteristic of 30-300MHZ low-frequency range, cooperates different magnitude of ceramics and electrolytic capacitor, playing reduces ripple
Effect.Finally entire power earth-return will enough on fabric swatch, and capacitor prevents position will be close to chip pin.
4, the redundancy feature design of versatility Width funtion.Power redundancy backup processing circuit plate in normal work may face
To different input voltage requirements, in order to cover the input voltage of wide scope as far as possible.We use setting for 4 tunnel dual redundants
Meter, wherein the main power input of two-way is designed using the high voltage range redundancy chip of 5V to 75V, and in addition the auxiliary power of two-way is defeated
Enter to use the low voltage range of 3V to 16.5V.
5, general more power supply DC conversion module designs.Redundant module can be provided to more two-way out-put supplies, in order to meet
The use demand of rear end mainboard, we are added to four road DC-DC moduluss of conversion in the rear end of the power redundancy backup processing circuit plate
Block, for providing additional four tunnel different voltage outputs.
6, remote channel control designs.In actual use environment, it can propose the demand of some energy conservation aspects, at this time can
The requirement that can remotely control is proposed to power supply.Accordingly, we design the control channel for having reserved one " 1 control 2 ", for long-range
Control power supply Push And Release.
7, the selectivity of different control modes.Level signal, design are controlled for " height " two different power switches
Two different control circuits have been reserved, the demand of diversity power supply type selecting is met.
8, fault-signal feedback output designs.When one or two failure in two internally-arranged type power supplys, system energy
It is enough to export fault feedback signal DET1 or DET2 all the way, it is used for transmission and carries out judgement control to liquid crystal display main control unit
System.
The calorific value of power module is generally large, we devise the fan radiating system of power supply thus, radiator fan
Performance requirement should meet low-power consumption, super-silent, adjustable speed, by comparison, select the quiet fan of three foreign brands, most strong wind
Amount has reached 58.6CFM, and maximum noise only has 24dB.Two fans are separately mounted to the high-power inductance of two built-in powers
Surface.
As shown in Figure 1, being the master-plan block diagram of whole system.Wherein built-in power A, built-in power B are in system
Backup battery, they supply power with double circuit to power redundancy backup processing circuit plate simultaneously.IN1 and IN2 is the main power of high voltage
Input channel, input voltage range are 5V to 75V.This two-way is drawn in built-in power and to keep identical voltage to be linked into power supply superfluous
The correlated inputs port of remaining fallback circuit plate is exported after the synthesis of redundant module by OUTA.IN3 and IN4 is that low-voltage is auxiliary
Input channel is helped, input voltage range is 3V to 16.5V.This two-way is drawn in built-in power and identical voltage is kept to be linked into electricity
The correlated inputs port of source redundant backup circuit plate is exported after the synthesis of redundant module by OUTB.OUTB is closed by redundancy
The DC-DC module that circuit after is respectively connected to power redundancy backup processing circuit plate carries out voltage conversion, converts out four tunnels
Low-voltage required for display main board works, while being powered to display backlight.The switch of whole system is special by one
The channel PS_ON of door is controlled.Control signal PS_ON is issued by mainboard, via power redundancy backup processing circuit plate point
At SD1 and SD2, the switch of built-in power A and built-in power B are controlled respectively.It is smoothly run for guarantee system simultaneously, built-in
Radiator fan FAN1 and FAN2 are added on power supply A and built-in power B respectively.So far, whole system realizes main power input IN1
The output of the redundancy synthesis of the output of OUTA all the way and auxiliary power input IN3 and IN4 OUTB all the way is synthesized with the redundancy of IN2.
Four road small voltages of system needs are converted to by DC-DC module with OUTB.Whole system realize double loop power supply redundancy and
The supplying power for outside of plurality of voltages.
As shown in Fig. 2, being the design frame chart of power redundancy backup processing circuit plate.Wherein input 1 and input 2 are main power
Redundant channel is inputted, the power supply of the identical voltage of two-way first passes around filtering processing, subsequently into redundancy chip 1, by redundancy core
The redundancy of piece 1 acts on, and synthesizes the voltage source of identical voltage all the way, recently enters in DC-DC module, and four tunnels of conversion output are low
Voltage source liquid crystal display mainboard uses.Power input redundant channel supplemented by input 3 and input 4.The identical low-voltage of two-way
Power supply first passes around filtering processing, and subsequently into redundancy chip 2, the redundancy by redundancy chip 2 is acted on, and synthesizes identical all the way
The voltage source of voltage, liquid crystal display mainboard use.
As shown in figure 3, being the local circuit schematic diagram of power redundancy backup processing circuit plate remote channel control.Wherein
Two access needles of R525 and R526 are designed the power supply of " the low height that closes is opened " type, directly control power supply by the circuit at mainboard end
Switch.Two access needles of R523 and R531 are designed the power supply of " height close low opens " type, by the way that triode is reversed and voltage-stabiliser tube
Mating reaction to voltage realizes same version code to the switch control of different electrical power.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of power supply hot backup power supply system of liquid crystal display characterized by comprising
Two built-in powers, are built-in power A and built-in power B respectively,
Power redundancy backup processing circuit plate, including redundant module and DC-DC module；
Two fans are fan A and fan B respectively；
Wherein, two built-in powers respectively connect a fan, and the voltage all the way in the built-in power A passes through IN1 and in-built electrical
Voltage all the way in the B of source connects the input port of redundant module by IN2 jointly, defeated by OUTA after redundant module merges
Out, for powering to display stand-by circuit；
Another way voltage in the built-in power A is connected by the another way voltage in IN3 and built-in power B by IN4 jointly
The input port for connecing redundant module is exported after redundant module merges by OUTB；
The OUTB output voltage of the redundant module passes through DC-DC module again to carry out being converted to the different DC voltage in four tunnels being aobvious
Show device mainboard and backlight power supply；
Display main board issues control signal PS_ON, is divided into SD1 and SD2 by power redundancy backup processing circuit plate, controls respectively
The switch of built-in power A and built-in power B processed；
The IN1 and IN2 draws output fault-signal DET1 and DET2 respectively, feeds back to two in display main board control system
Road monitors pin, and whether the working condition for judging built-in power A and built-in power B is normal；
When a failure in two built-in powers, another built-in power is unaffected, and continues to work normally；
When one or both of two built-in powers break down, fault-signal DET1 or DET2 can be exported, is fed back to aobvious
Show device mainboard control system, is that failure has occurred in which power supply by display main board judgement.
2. the power supply hot backup power supply system of liquid crystal display according to claim 1, it is characterised in that: IN1 and
IN2 is the main power input channel of high voltage, and input voltage range is 5V to 75V；IN3 and IN4 is that low-voltage assists input channel,
Input voltage range is 3V to 16.5V.
3. the power supply hot backup power supply system of liquid crystal display according to claim 1, it is characterised in that: in described
The voltage all the way set in power supply A connect redundancy by IN2 with the voltage all the way of same size in built-in power B by IN1 jointly
The input port of module, another way voltage in the built-in power A by IN3 and built-in power B same size it is another
Road voltage connects the input port of redundant module by IN4 jointly.
4. the power supply hot backup power supply system of liquid crystal display according to claim 1, it is characterised in that: described
IN1, IN2, IN3 and IN4 first pass through the input port that filter capacitor reconnects redundant module.
5. the power supply hot backup power supply system of liquid crystal display according to claim 1, it is characterised in that: display
It is two-way that mainboard, which issues signal PS_ON points of control, wherein connect one end of R525 and R523 respectively all the way, the other end difference of R523
Connect one end of R524 and the base stage 1 of PMBT3906 triode Q55, the other end of R524 and 3 current collections of PMBT3906 triode Q55
Extremely common ground connection, the emitter 2 of PMBT3906 triode Q55 connect the anode of ZMM2V2 zener diode D47, and the R525's is another
The cathode of one end and ZMM2V2 zener diode D47, which connect, exports control signal SD1；
The another way of control signal PS_ON connects one end of R526 and R531 respectively, and the other end of R531 connects one end of R527 respectively
With the base stage 1 of PMBT3906 triode Q56, the other end of R527 and 3 collectors of PMBT3906 triode Q56 are grounded jointly,
The emitter 2 of PMBT3906 triode Q56 connects the anode of ZMM2V2 zener diode D48, the other end of the R526 and
The cathode of ZMM2V2 zener diode D48, which connects, exports control signal SD2.
6. a kind of method of supplying power to of the power supply hot backup power supply system of liquid crystal display, it is characterised in that: this method application
In the power supply hot backup power supply system of any liquid crystal display of claim 1-5.
7. the power supply hot backup method of supplying power to of liquid crystal display according to claim 6, it is characterised in that: have remote
Process control system switching channel, and compatible " low to open high pass " and " height opens low pass " two different remote controlled manners；It is " low to open
Height close ", i.e., display main board issue low level control signal PS_ON, by power redundancy backup processing circuit plate be divided into SD1 and
SD2 controls the opening of built-in power A and built-in power B；Display main board issues high-level control signal PS_ON, by power supply
Redundancy backup processing circuit plate is divided into SD1 and SD2, controls the closing of built-in power A and built-in power B；" height opens low pass ", i.e., it is aobvious
Show that device mainboard issues high-level control signal PS_ON, is divided into SD1 and SD2 by power redundancy backup processing circuit plate, in control
Set the opening of power supply A and built-in power B；Display main board issues low level control signal PS_ON, at power redundancy backup
Reason circuit board is divided into SD1 and SD2, controls the closing of built-in power A and built-in power B.
8. the power supply hot backup method of supplying power to of liquid crystal display according to claim 7, it is characterised in that: described remote
Process control mode is " 1 control 2 ", i.e. a control line switchs while realization by transistor switching circuit to two built-in powers
Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610970438.1A CN106373539B (en) | 2016-11-07 | 2016-11-07 | A kind of the power supply hot backup power supply system and method for liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610970438.1A CN106373539B (en) | 2016-11-07 | 2016-11-07 | A kind of the power supply hot backup power supply system and method for liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106373539A CN106373539A (en) | 2017-02-01 |
| CN106373539B true CN106373539B (en) | 2019-01-22 |
Family
ID=57894700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610970438.1A Active CN106373539B (en) | 2016-11-07 | 2016-11-07 | A kind of the power supply hot backup power supply system and method for liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106373539B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108170249A (en) * | 2018-02-09 | 2018-06-15 | 深圳市杰和科技发展有限公司 | A kind of method of supplying power to and electric power system of server CPU redundant powers |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102597871B1 (en) * | 2017-12-29 | 2023-11-02 | 엘지디스플레이 주식회사 | Power supplying apparatus and display apparatus comprising the same |
| CN108512405A (en) * | 2018-01-16 | 2018-09-07 | 深圳市嘉利达专显科技有限公司 | A kind of power supply backup and fault detection circuit of display |
| CN109217457A (en) * | 2018-09-04 | 2019-01-15 | 江苏清投视讯科技有限公司 | Dual redundant display based on Power Supply Monitoring |
| CN111463895B (en) * | 2020-05-08 | 2021-06-25 | 成都中科信息技术有限公司 | Display system for realizing double-core double-channel control of single liquid crystal screen |
| CN114301153B (en) * | 2020-09-22 | 2024-05-10 | 西安诺瓦星云科技股份有限公司 | Power supply backup control circuit card and LED display control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201004601Y (en) * | 2007-02-09 | 2008-01-09 | 浪潮电子信息产业股份有限公司 | AC and DC mutual backup redundant power supply |
| TW201342776A (en) * | 2012-04-11 | 2013-10-16 | Zippy Tech Corp | Prolongation power supply uninterruptible power supply apparatus and uninterruptible power supply architecture |
| CN103730951A (en) * | 2014-01-24 | 2014-04-16 | 加弘科技咨询(上海)有限公司 | Power management system and method |
| CN203674783U (en) * | 2013-12-19 | 2014-06-25 | 新巨企业股份有限公司 | Redundant power source system for improving standby energy consumption |
| CN105429276A (en) * | 2014-09-17 | 2016-03-23 | 新巨企业股份有限公司 | Redundant power supplying system enabling a standby effect in turns |
-
2016
- 2016-11-07 CN CN201610970438.1A patent/CN106373539B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201004601Y (en) * | 2007-02-09 | 2008-01-09 | 浪潮电子信息产业股份有限公司 | AC and DC mutual backup redundant power supply |
| TW201342776A (en) * | 2012-04-11 | 2013-10-16 | Zippy Tech Corp | Prolongation power supply uninterruptible power supply apparatus and uninterruptible power supply architecture |
| CN203674783U (en) * | 2013-12-19 | 2014-06-25 | 新巨企业股份有限公司 | Redundant power source system for improving standby energy consumption |
| CN103730951A (en) * | 2014-01-24 | 2014-04-16 | 加弘科技咨询(上海)有限公司 | Power management system and method |
| CN105429276A (en) * | 2014-09-17 | 2016-03-23 | 新巨企业股份有限公司 | Redundant power supplying system enabling a standby effect in turns |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108170249A (en) * | 2018-02-09 | 2018-06-15 | 深圳市杰和科技发展有限公司 | A kind of method of supplying power to and electric power system of server CPU redundant powers |
| CN108170249B (en) * | 2018-02-09 | 2021-02-26 | 深圳市杰和科技发展有限公司 | Power supply method and power supply system for redundant power supply of server CPU |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106373539A (en) | 2017-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106373539B (en) | A kind of the power supply hot backup power supply system and method for liquid crystal display | |
| KR101697443B1 (en) | Low-power consumption standby circuit device, air conditioner and control method for air conditioner | |
| CN106208350B (en) | Power supply method and device | |
| US20090243390A1 (en) | Power supply apparatus and power control method | |
| US9979282B2 (en) | Charge pump for low power consumption apparatus and associated methods | |
| US9806561B2 (en) | UPS systems and methods using dual mode rectifier/inverter | |
| CN205355935U (en) | Dual supply automatic switchover power supply and prevent circuit that power joins conversely | |
| CN101931321B (en) | Power conversion circuit | |
| CN110224456A (en) | A kind of satellite low-power consumption starting power supply system | |
| EP3070706B1 (en) | Power supply system | |
| CN103227628A (en) | IGBT (Insulated Gate Bipolar Transistor) drive module for electric automobile | |
| CN103199704A (en) | Three-port DC-DC (direct current) converter topology circuit | |
| TW201415762A (en) | Uninterruptible power system and power control system thereof | |
| CN108809068A (en) | Voltage following series power supply circuit | |
| EP2712049B1 (en) | Temperature-controlled equipment and cabinet for communication equipment | |
| CN215419642U (en) | Isolated power supply circuit, device and electrical equipment | |
| US7843083B2 (en) | Backup power system equipped with independent protection circuit architecture | |
| US11637431B2 (en) | Inverter | |
| CN105262183A (en) | Power-saving type USB charging structure | |
| CN109065085A (en) | A kind of power supply circuit and method storing equipment | |
| CN104821653A (en) | Ammeter and power supply circuit therein, and power supply control method inside the ammeter | |
| CN204012895U (en) | A kind of cold standby commutation circuit and redundant power of redundant power | |
| US20190181622A1 (en) | Power supply cabinet | |
| CN109884935A (en) | A kind of multivoltage multifunctional multiplexing reset switch latching circuit | |
| CN109449880A (en) | A kind of high-power aerospace modular power source input undervoltage protection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |