CN109637436A - Pressure stabilizing control method, driving chip, LED drive circuit and display device - Google Patents
Pressure stabilizing control method, driving chip, LED drive circuit and display device Download PDFInfo
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- CN109637436A CN109637436A CN201910074593.9A CN201910074593A CN109637436A CN 109637436 A CN109637436 A CN 109637436A CN 201910074593 A CN201910074593 A CN 201910074593A CN 109637436 A CN109637436 A CN 109637436A
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- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Physics & Mathematics (AREA)
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- Theoretical Computer Science (AREA)
- Electronic Switches (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
A kind of port pressure stabilizing control method, driving chip, LED drive circuit and the display device of driving circuit, the port pressure stabilizing control method include: to confirm that each switch unit is in closed state or off-state according to logic control signal；Detect and be in off-state the switch unit connection signal port port voltage；Determine that the signal port with the presence or absence of interference components, eliminates the interference components if the signal port is there are interference components by way of charge and discharge according to the pressure value of the port voltage；Port pressure stabilizing control method in the embodiment of the present invention detects the port voltage of signal port hanging in driving chip, prevents signal port by abnormal interference, avoids hanging port voltage change that drive electronics is caused to be in abnormal starting state；To which the port pressure stabilizing control method improves the control reliability and stability of the signal port of driving circuit.
Description
Technical field
The invention belongs to technical field of circuit control more particularly to a kind of port pressure stabilizing control method of driving circuit, drive
Dynamic chip, LED drive circuit and display device.
Background technique
Traditional technology generallys use driving circuit and generates multi-way control signals, can change corresponding electricity by the control signal
The working condition of sub-circuit；When the communication terminal of driving circuit exports different control signals, then electronic circuit is also at difference
Working condition；In the practical control process of electronic circuit, multiple communication terminals of driving circuit are sequentially output multichannel control respectively
Signal processed, and as the signal output state of each communication terminal is not identical, the different electronic components in electronic circuit exist
Under the manipulation of corresponding control signal, in the state to work on power or power loss stops；The electronic circuit is in multi-channel control
The circuit function of various complexity is realized under the driving of signal, to meet the actual circuit functional requirement of technical staff.
However during the communication terminal of driving circuit exports control signal, due to the interference or driving of outside noise
The factors such as the mutual crosstalk in circuit between adjacent electronics component cause the working condition of communication terminal to be in abnormal conditions, than
Such as communication terminal abnormal start-up in the off case, causes the control of associated electronic circuits biggish error occur, reduce
The practical function of electronic circuit；By taking the actuation techniques of display screen as an example, it can be exported respectively by the communication terminal of driving circuit more
Road controls signal, and LED (Light Emitting Diode, the light-emitting diodes inside display screen can be made by the control signal
Pipe) lamp be in shine or extinguish state；Since there are multiple communication terminals for driving circuit, can be driven simultaneously by the communication terminal
Multiple LED light are moved so that color complete picture more abundant is presented；For example, when a communication terminal is in close state, then it is logical with this
The LED light of news end connection can not access electric energy and be in OFF state；When another communication terminal is in the conductive state, with communication terminal company
The LED light connect has access to electric energy to maintain normal luminance；Therefore by control driving circuit different communication terminals it
Between be switched on or off state, multiple LED light are at different luminances, and it is more that more color can be presented in display screen
The picture of change；However in the communication terminal of driving circuit in conducting and closing process, since the communication terminal of driving circuit is by outer
The interference of sector signal, LED light is under the control that communication terminal exports control signal, in abnormal luminance.
For example, communication terminal is in vacant state at this time when the communication terminal of driving circuit is closed；It is more due to driving circuit
A communication terminal connects multiple LED light, during carrying out circulation driving for multiple LED light, the communication terminal in vacant state
Current potential will will receive other LED light opening and closing movement and influence, cause the control signal of communication terminal to be abnormal change；When
When the LED light voltage difference of the two ends being in close state is greater than its conducting voltage, LED light will be connected and then fault open；Therefore
Dark bright or communication terminal voltage will occur in black region in traditional display screen is led to display screen by external interference
Situations such as brightness is unstable.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of port pressure stabilizing control method of driving circuit, driving chip,
LED drive circuit and display device, it is intended to solve the level state of multiple communication terminals of driving circuit in traditional technical solution
It is easy the interference by noise, the control performance of driving circuit is bad and there are problems that large error.
The first aspect of the embodiment of the present invention provides a kind of port pressure stabilizing control method of driving circuit, the driving electricity
Road includes multiple signal ports and multiple switch unit, and each switch unit and each signal port correspond and connect
It connects；Each switch unit accesses logic control signal, and is closed or disconnects according to the logic control signal；It is each
The signal port loads Single port voltage under the corresponding switch unit manipulation；The port pressure stabilizing control method packet
It includes:
Confirm that each switch unit is in closed state or off-state according to the logic control signal；
Detect and be in off-state the switch unit connection signal port port voltage；
The signal port is determined with the presence or absence of interference components, if the signal port exists according to the pressure value of the port voltage
Interference components then eliminate the interference components by way of charge and discharge.
In one of them embodiment, the pressure value according to the port voltage determines that the signal port whether there is
Interference components eliminate the interference components if the signal port is there are interference components by way of charge and discharge, specifically:
If the pressure value of the port voltage is lower than the first setting value, carried out to the associated signal port of the port voltage
Charging, is promoted to first setting value or more for the pressure value of the port voltage；Or
If the pressure value of the port voltage is higher than the second setting value, signal port associated for the port voltage is carried out
Electric discharge, is pulled down to second setting value or less for the pressure value of the port voltage.
In one of them embodiment, it is in closed state in the switch unit, then is not detected and the switch unit
The port voltage of the signal port of connection makes extraneous electronic equipment be in corresponding working condition by the port voltage.
In one of them embodiment, the interference components of current demand signal port derive from other switch units
The action signal generated in closure or disconnection process.
The second aspect of the embodiment of the present invention provides a kind of driving chip, comprising:
Multiple signal ports；
Multiple switch unit；
Drive control module, for generating multi-channel port voltage；First conduction terminal of each switch unit with it is each
The signal port connects one to one, and the second conducting of each switch unit terminates the drive control module；
Constant current port logic control module is connect with the control terminal of each switch unit, the constant current port logic
Control module, which is used to generate, controls logic control signal switch unit closure or disconnected, and is also used to according to the logic
Control signal confirms that each switch unit is in closed state or off-state；
Voltage detection module is connect with multiple signal ports of the driving chip, and the voltage detection module is for examining
Survey and be in off-state the switch unit connection signal port port voltage；If there is interference point in the signal port
Amount, then the voltage detection module issues first detection signal；And
Voltage stabilizing module, with the constant current port logic control module, the voltage detection module and the driving chip
In the connection of each signal port, the Voltage stabilizing module under the driving of first detection signal by way of charge and discharge for being disappeared
Except the interference components.
In one of them embodiment, the voltage detection module includes comparator；Wherein, the first of the comparator
Input terminal is for accessing reference voltage, and the second input terminal of the comparator is for accessing the port voltage, the comparator
Output end for exporting the first detection signal.
In one of them embodiment, further includes:
Reference voltage generation module is connect with the voltage detection module, and the reference voltage generation module is for generating
First setting value and the second setting value；
If the voltage detection module detects and is in the signal port of the switch unit connection of off-state
When the pressure value of port voltage is lower than first setting value, then the Voltage stabilizing module charges to the signal port, will be described
The pressure value of port voltage is promoted to first setting value or more；Or
If the voltage detection module detects and is in the signal port of the switch unit connection of off-state
When the pressure value of port voltage is higher than second setting value, then the Voltage stabilizing module discharges to the signal port, will be described
Port voltage is pulled down to second setting value or less.
In one of them embodiment, the voltage detection module is also used to: being in closed form in the switch unit
When state, the port voltage for the signal port connecting with the switch unit is not detected.
The third aspect of the embodiment of the present invention provides a kind of LED drive circuit, comprising:
Driving chip as described above；
Switch port Logic control module is used for output switching signal；
Multiple LED light form rows and columns in the form of array arrangement；
The multi-strip scanning line being arranged in array in a longitudinal direction, the scan line and the switch port logic control mould
Block connection, the scan line are also connect with the anode of LED light in same a line, and the switching signal is for driving every a line LED light
Successively open；And
The multiple data lines being arranged in array in a lateral direction, a signal end of the data line and the driving chip
Mouth connection, the data line are also connect with the cathode of LED light in same row, when the LED light is opened, the driving chip
Signal port output port voltage, the port voltage drive the LED light to shine.
The fourth aspect of the embodiment of the present invention provides a kind of display device, including LED drive circuit as described above.
The port pressure stabilizing control method detection switch unit of above-mentioned driving circuit is in closed state and still disconnects
State illustrates that the signal port connecting with the switch unit is in vacant state if the switch unit is in an off state,
The then port voltage of signal port of the detection in vacant state；If obtaining according to testing result, there are interference components in signal port
When, the interference components of signal port are eliminated, by charge and discharge system in time to prevent the signal port in vacant state from exporting
Abnormal port voltage causes electronic equipment to start extremely, damages the physical security of related industries product；To which the present invention is implemented
Port pressure stabilizing control method in example carries out pressure stabilizing detection by the port voltage for each hanging signal port, improves
The stability and reliability of port pressure stabilizing control method, being capable of output safety, normal by multiple signal ports of driving circuit
Port voltage, drive electronics realize stable circuit function；To efficiently solve driving circuit in traditional technology
Communication terminal during output controls signal, be easy interference by noise, the control effect of traditional driving circuit is different
Normal problem.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the structural schematic diagram for the driving circuit that one embodiment of the invention provides；
Fig. 2 is the specific flow chart of the port pressure stabilizing control method for the driving circuit that one embodiment of the invention provides；
Fig. 3 is the structural schematic diagram for the driving chip that one embodiment of the invention provides；
Fig. 4 is the circuit structure diagram of voltage detection module and Voltage stabilizing module that one embodiment of the invention provides；
Fig. 5 be another embodiment of the present invention provides driving chip structural schematic diagram；
Fig. 6 is the structural schematic diagram for the LED drive circuit that one embodiment of the invention provides；
Fig. 7 is the structural schematic diagram for the display device that one embodiment of the invention provides.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It needs to illustrate first, driving circuit, can by the driving circuit as electronic circuit core control part
Drive electronics realize different circuit functions, the driving circuit it is multiple functional, compatibility is stronger；Illustratively, Fig. 1
The structural representation of driving circuit 10 provided in an embodiment of the present invention is shown, as shown in Figure 1, driving circuit 10 includes N number of arranged side by side
Signal port OUT1, OUT2 of arrangement ... OUTN-1, OUTN and N number of switch unit, it can be with the external world by the signal port
Electronic equipment realizes signal interaction, and wherein N is any positive integer more than or equal to 2；Each switch unit with it is each
The signal port connects one to one, illustratively, referring to Fig.1, first switch unit 101 and first signal port OUT1
Connection, second switch unit 102 are connect with second signal port OUT2, and so on, it can be divided by each switch unit
The working condition of corresponding signal port is not controlled；And each switch unit accesses logic control signal C1, and institute
Switch unit is stated to be closed or disconnect according to the logic control signal C1；Each signal port is in the corresponding switch
Unit manipulation is lower to load Single port voltage；Multiple signal ports of the driving circuit 10 connect extraneous electronic equipment, by this
Port voltage can drive electronics realize corresponding circuit function so that electronic equipment is at different working conditions
Under.
Specifically, the port voltage of the signal port can be located when switch unit is in closure or off-state
In different level states, so that electronic equipment is in different working conditions；Illustratively, referring to Fig.1 in driving circuit 10
Structural representation, the switch unit is connected between voltage source and signal port, if the switch unit is closed, voltage source
Low-voltage is exported by switch unit, then the port voltage of corresponding signal port is also low level；On the contrary, if the switch is single
Member disconnects, then corresponding signal port is suspended, and the port voltage of the signal port is in nondeterministic statement；Therefore it is opened when described
When pass unit is in different conductings or off state under the control of logic control signal, it is connect with the switch unit
The port voltage of signal port is also at different level states；Therefore signal port port voltage level state with it is described
There are one-to-one relationships for the on off operating mode of switch unit；When the driving circuit be applied to different industrial technical fields in,
Multiple switch unit in driving circuit 10 is successively opened under the control of logic control signal, in driving circuit 10
Multiple signal ports can export the port voltage of varying level state, electronic equipment can be made to realize more by the port voltage
Add complicated circuit function, improves the controllability of the driving circuit 10, electronic equipment can be according to the actual needs of user
Realize corresponding circuit function, the driving circuit 10 has the wider array of scope of application.
It should be noted that application of the driving circuit 10 shown in fig. 1 as the present embodiment middle port pressure stabilizing control method
Object；Due in Fig. 1 driving circuit 10 be only an embodiment, those skilled in the art can in Fig. 1 driving circuit 10
Structure on carry out the operation such as random variation, extension and extension, without prejudice to the present embodiment middle port pressure stabilizing control method
On substantial manipulation step basis, the port pressure stabilizing control method is still applicable to different types of driving electricity in this field
Lu Zhong.
However when the multiple switch unit of driving circuit 10 is closed or is turned off, hanging signal port in driving circuit
The influence of other signals port level state will be will receive, hanging signal port can still export effective end in driving circuit
Mouth voltage causes the electronic component connecting with hanging signal port to be in abnormal starting state, the driving circuit 10
Control stability is lower, and there are biggish control errors；To solve this problem, the embodiment of the invention provides driving circuits
Port pressure stabilizing control method, for ease of description, Fig. 2 shows the port pressure stabilizing of driving circuit provided in this embodiment controls
The detailed process of method, only the parts related to this embodiment are shown, and details are as follows:
As shown in Fig. 2, the port pressure stabilizing control method includes the following steps:
S201: confirm that each switch unit is in closed state and still disconnects shape according to the logic control signal
State.
Referring to above, the control information of the logic control signal and the closed state or off-state of switch unit are deposited
In corresponding relationship；Illustratively, by changing the level state of logic control signal, then the switch unit would be at difference
Closed state and off-state, then can accurately judge that each switch is single according to the level state of logic control signal
Member is in closed state or off-state；Therefore the present embodiment can accurately judge driving electricity by logic control signal
The on off operating mode of each switch unit in road, the accurate height of detection, helped to improve the port pressure stabilizing control method for
The control response speed of abnormal voltage status in signal port.
S202: detecting and is in the port voltage of the signal port of the switch unit connection of off-state.
If switch unit is in an off state, which is in vacant state；Under normal control condition, with
The electronic equipment of switch unit connection in vacant state is in power loss halted state, cannot achieve corresponding circuit function；
Therefore in S202, the signal port of vacant state can be accurately judged according to the port voltage of the signal port of vacant state
Port voltage whether be in abnormality, so that it is abnormal to avoid the electronic equipment connecting with the signal port of vacant state from occurring
The phenomenon that starting, has ensured the safe operation of all signal ports in driving circuit.
S203: the signal port is determined with the presence or absence of interference components, if the signal end according to the pressure value of the port voltage
There are interference components, and the interference components are then eliminated by way of charge and discharge for mouth.
It should be noted that the interference components are interference voltage or interference electric current；When the hanging signal port
There are when interference components, the port of hanging signal port is in abnormality, and then leads to electronic equipment exception electrifying startup,
Reduce the stability and accuracy of the port pressure stabilizing control method.
In embodiments of the present invention, when switch unit disconnects, the signal port of driving circuit is in vacant state, passes through
The port voltage of hanging signal port is detected, to judge whether the signal port is in normal working condition；If described
There are interference components for signal port, change the pressure value of the port voltage of the signal port by way of charge and discharge, should
Interference components are eliminated, so that the pressure value of the port voltage of the hanging signal port is back to normal condition, avoid institute
State the control error that the interference components in signal port cause driving circuit；To which the present embodiment passes through for hanging in driving circuit
Empty signal port carries out voltage detecting, when the hanging signal port is interfered, then rapidly to hanging signal end
Mouth takes steady pressure treatment, to ensure signal port all in driving circuit under the manipulation of logic control signal in normal
Potential state improves the stability and reliability of the driving circuit, and it is more steady that driving circuit can be such that electronic equipment realizes
Fixed circuit function, practical value are higher；Efficiently solve the current potential of the hanging signal port of driving circuit in traditional technology
Abnormal, the control signal of hanging signal port will lead to electronic equipment and start extremely, the control effect of driving circuit exist compared with
The problem of big error.
As an alternative embodiment, the interference components of current demand signal port are single from other switches
The action signal that member generates in closure or disconnection process.
In the present embodiment, in driving circuit there are multiple switch units being set side by side, and each switch unit
It can be realized closure or disconnection under the manipulation of logic control signal, then the electricity of the current signal port in vacant state
Position, which will will receive other switch unit closures or disconnection movement, to be influenced, so that the port voltage of the signal port of vacant state is deposited
In interference components, the pressure value of the port voltage is in abnormality, and the hanging signal port of the driving circuit will generate
Biggish voltage fluctuation error；Therefore the action signal generated in make and break process when other switch units is for current hanging
When the signal port of state interferes, the port pressure stabilizing control method in the present embodiment can prevent in time: other switches are single
What the closure of member or the action signal of disconnection caused extraneous electronic equipment opens by mistake the problem of opening；To the port pressure stabilizing controlling party
Method can make all signal ports of driving circuit can be in safety, normal working condition.
As an alternative embodiment, described determine whether the signal port is deposited according to the pressure value of the port voltage
In interference components, the interference components are eliminated by way of charge and discharge if the signal port is there are interference components, specifically:
If the pressure value of the port voltage is lower than the first setting value, carried out to the associated signal port of the port voltage
Charging, is promoted to first setting value or more for the pressure value of the port voltage；If the pressure value of the port voltage is high
In the second setting value, then signal port associated for the port voltage discharges, and the pressure value of the port voltage is pulled down
Below to second setting value.
Optionally, first setting value and second setting value are to preset, and second setting value is big
In first setting value；Specifically, first setting value is 3.0V DC voltage, second setting value is 4.0V direct current
Voltage；It can accurately judge that whether the port voltage of hanging signal port is in by the first setting value and the second setting value
Stablize, the range of safety.
Wherein first setting value represents the minimum voltage threshold of the hanging signal port, when hanging signal end
The pressure value of mouth is lower than the first setting value, then illustrates that the port voltage of hanging signal port is in abnormality.
Wherein, second setting value is the maximum voltage threshold of the hanging signal port, when the port voltage
Pressure value when being higher than the second setting value, then illustrate that biggish interference components occurs in the port voltage of the hanging signal port, this is dry
Electronic equipment will be will lead in abnormal power-up state by disturbing component, and the control for reducing the port pressure stabilizing control method is stablized
Property.
In the embodiment of the present application, by detecting the port voltage of hanging signal port, when the end of the signal port
The pressure value of mouth voltage is in abnormality, then carries out charge or discharge operation to hanging signal port respectively；Specifically, logical
The electrically operated port voltage that can draw high hanging signal port is overcharged, can reduce hanging signal port by discharge operation
Port voltage avoid hanging so that the pressure value of the port voltage of the hanging signal port is able to maintain that in normal amplitude
Empty signal port is interfered and the port voltage of output abnormality, improve the present embodiment middle port pressure stabilizing control method for
The pressure stabilizing response speed of the abnormal level state of hanging signal port；The port electricity of hanging signal port in the driving circuit
The pressure value of pressure is at safety, normal amplitude range always, and the control for improving the port pressure stabilizing control method is accurate,
Avoiding signal port hanging in driving circuit leads to the abnormal electrifying startup of electronic equipment.
As an alternative embodiment, being in closed state in the switch unit, then do not detect and the switch list
The port voltage of the signal port of member connection makes extraneous electronic equipment be in corresponding work shape by the port voltage
State.
In the present embodiment, if switch unit is closed, illustrate that the signal port connecting with the switch unit is not in
Vacant state；When switch unit closure, port voltage can be exported to electronic equipment by corresponding signal port, by this
Port voltage drive electronics are in normal, stable working condition, and when the port voltage of the signal port occurs
When change, then the circuit function that the electronic equipment is realized can also occur to change accordingly；It should be noted that the present embodiment
In electronic equipment can be with electronic equipment any type of in this field, such as LED light etc., herein without limitation to this；This reality
Port voltage of the port pressure stabilizing control method in example without detecting not hanging signal port is applied, that is, is simplified for driving circuit
Signal port pressure stabilizing rate-determining steps, avoid extra detecting step occur for signal port；Port pressure stabilizing control is improved again
Method processed is for the control response speed of the signal port of driving circuit, and the signal port of driving circuit is in normal work shape
State, electronic equipment can realize corresponding circuit function according to the actual needs of technical staff.
Fig. 3 shows the structural representation of driving chip 20 provided in an embodiment of the present invention, referring to Fig. 2, the driving core
Piece include: multiple signal ports, multiple switch unit 201, drive control module 202, constant current port logic control module 203,
Voltage detection module 204 and Voltage stabilizing module 205.
Wherein, drive control module 202 is for generating multi-channel port voltage；The first of each switch unit 201 is led
Go side connects one to one with each signal port, and the second conducting of each switch unit terminates the drive control
Module 202；Wherein drive control module 202 has the integrated processing and analysis ability of signal, optionally, the drive control mould
Block 202 and extraneous mobile terminal carry out signal interaction, and control signal is transmitted to drive control module by the mobile terminal
202, the control signal includes the operation information of user, and the drive control module 202 generates multichannel end according to control signal
Mouth voltage can drive corresponding electronic equipment to realize corresponding circuit function by the port voltage；Therefore in the present embodiment
Drive control module 202 can depending on the user's operation information change electronic equipment working condition, to realize driving chip 20
Optimal Control effect, the circuit function that electronic equipment is realized can meet the actual demand of user, and the usage experience of user is more
It is good, ensure the controllability energy of driving chip 20.
Constant current port logic control module 203 is connect with the control terminal of each switch unit 201, the constant current port
Logic control module 203, which is used to generate, controls logic control signal switch unit 201 closure or disconnected, and is also used to root
Confirm that each switch unit 201 is in closed state or off-state according to the logic control signal；Wherein by patrolling
Collecting control signal can directly make switch unit 201 be closed or disconnect, optionally, when logic control signal has different level
When state, then switch unit 201 is in different conductings or off state, can by the level state of logic control signal
So that multiple switch unit 201 is respectively turned on or is turned off simultaneously, improves 201 on off operating mode of switch unit in driving chip 20
Control flexibility and stability；And the on off operating mode of each switch unit 201 can be accurately obtained according to logic control signal,
To realize that the pressure stabilizing for each signal port controls, control, which occurs, in each signal port for preventing the driving chip 20 to be missed
Difference improves the control stability of driving chip 20.
Optionally, each switch unit 201 includes a switching tube, and the switching tube is metal-oxide-semiconductor or triode；Example
Property, the switching tube is metal-oxide-semiconductor, the first conduction terminal of the first conducting extremely switch unit 201 of the metal-oxide-semiconductor, the metal-oxide-semiconductor
The second conducting extremely switch unit 201 the second conduction terminal, the control terminal of the control extremely switch unit 201 of the metal-oxide-semiconductor；
When the switch unit 201 is in closure or off-state, the port voltage of the signal output end of driving chip 20 is in
Different level states；For example, being led when the first conduction terminal of switch unit 201 and second can be changed by logic control signal
Conducting or off state between go side, when being closed between the first conduction terminal of switch unit 201 and the second conduction terminal, then
The signal output end connecting with the switch unit 201 can be directly accessed port voltage；When the first conduction terminal of switch unit 201
With the second conduction terminal it is separated when, then the signal output end connecting with the switch unit 201 can be directly accessed port voltage；
To which multiple signal ports of driving chip 20 in the present embodiment can be respectively at different working conditions.
Voltage detection module 204 is connect with multiple signal ports of the driving chip 20, the voltage detection module 204
The port voltage for the signal port that the switch unit 201 for detecting and being in off-state connects；If the signal port
There are interference components, then the voltage detection module issues first detection signal.
Voltage stabilizing module 205 and the constant current port logic control module 203, the voltage detection module 204 and described
Each signal port connection in driving chip, the Voltage stabilizing module 205 are used under the driving of first detection signal by filling
The mode of electric discharge eliminates the interference components.
It should be noted that the driving chip 20 in Fig. 3 is corresponding with the port pressure stabilizing control method of above-mentioned driving circuit,
Therefore the specific embodiment for closing driving chip 20 in this present embodiment can refer to the embodiment of Fig. 2 middle port pressure stabilizing control method
With the embodiment of driving chip in Fig. 1, will not be described in great detail herein.
In the present embodiment, when signal port is hanging, voltage detection module 204 can be real according to the pressure value of port voltage
When detect hanging signal port with the presence or absence of interference components, to avoid the port voltage due to hanging signal port by dry
It disturbs and control error occurs；When the port voltage of hanging signal port is there are when interference components, then pass through first detection signal
Can drive in real time: Voltage stabilizing module 205 takes pressure stabilizing control measure for hanging signal port, so that the port voltage returns
It is back to the range of stable safety, the signal output end of the driving chip 20 can be always in safe operating status, outward
The electronic equipment on boundary provides stable port voltage, so that electronic equipment is can be realized stable circuit function by the driving chip 20
Can, and then the driving chip 20 in the present embodiment has stronger compatibility, can be widely applicable for each different industry neck
In domain；The hanging signal port for efficiently solving driving chip in traditional technology is easy to be interfered, and then causes mutually powered-down
The abnormal starting of sub- component, traditional driving chip control stability and the poor problem of reliability.
As an alternative embodiment, Fig. 4 shows voltage detection module 204 provided in this embodiment and pressure stabilizing mould
The particular circuit configurations of block 205, as shown in figure 4, the voltage detection module 204 includes: comparator Cmp；Wherein, the comparison
The first input end of device Cmp is for accessing reference voltage Vref, and the second input terminal of the comparator Cmp is for accessing the end
Mouth voltage, the output end of the comparator Cmp is for exporting the first detection signal.
It should be noted that the first input end of comparator Cmp is non-inverting input terminal or inverting input terminal；It is exemplary
, the first input end of comparator Cmp is inverting input terminal, and the second input terminal of comparator Cmp is non-inverting input terminal.
Wherein reference voltage Vref information as the reference voltage, when the second input terminal and driving chip 20 of comparator Cmp
The connection of hanging signal port, the second input terminal of comparator Cmp accesses the port voltage of hanging signal input part, by comparing
The difference amplitude of the port voltage and the port voltage whether there is with the port voltage for judging hanging signal port
Interference components；Illustratively, when the port voltage is lower than the reference voltage Vref, then illustrating port voltage, there is no dry
Disturb component；When the port voltage is higher than the reference voltage Vref, then illustrating port voltage, there are interference components, comparators
The output end of Cmp exports first detection signal to Voltage stabilizing module 205, to drive Voltage stabilizing module 205 to hanging signal port
Pressure stabilizing control measure are taken, the port voltage of hanging signal port can be always in stable, safe range；Therefore this reality
The voltage detection module 204 applied in example has more simplified circuit structure, has for the port voltage of signal port higher
Detection sensitivity, improve the pressure stabilizing control response speed for the signal port of driving chip 20.
As an alternative embodiment, as shown in figure 4, the Voltage stabilizing module 205 include: the first nor gate NOR1,
Second nor gate NOR2, phase inverter INV, the first control switch M1, the second control switch M2, the first current source Ir1 and second
Current source Ir2.
Wherein, the first input end of the first nor gate NOR1 and the input terminal of the phase inverter INV are connected to voltage altogether
Detection module 204, for the first input end of the first nor gate NOR1 for accessing first detection signal, the first nor gate NOR1's is defeated
The control terminal of the first control switch M1 is terminated out, and the first conducting of the first control switch M1 terminates first electric current
The first conduction terminal of second conducting termination the second control switch M2 of source Ir1, the first control switch M1, described second
The output of second the second current source Ir2, the phase inverter INV of conducting termination of control switch M2 terminates second nor gate
The second input of the first input end of NOR2, the second input terminal of the first nor gate NOR1 and the second nor gate NOR2
Access switch executes signal altogether at end, and the output of the second nor gate NOR2 terminates the control terminal of the second control switch M2；
When the signal that the second nor gate NOR2 exports switch indication signal and voltage detection module 204 carries out or logic operation
Afterwards, with the conducting or shutdown of the second control switch M2 of control；Wherein the switch indication signal can be used to indicate that the switch
The closure of unit 201 disconnects, and illustratively, when switch unit 201 is closed, the switch indication signal is the first level shape
State；When switch unit 201 disconnects, the switch indication signal is second electrical level state；Pass through the electricity of the switch indication signal
Whether level state can obtain switch unit 201 in closure or off-state.
Wherein, the second conduction terminal of the first control switch M1 and the first conduction terminal of the second control switch M2 connect to form institute altogether
The constant voltage output port of Voltage stabilizing module 205 is stated, the constant voltage output port of Voltage stabilizing module 205 is for changing hanging signal port
Port voltage, to eliminate the interference components in the port voltage；Wherein in the present embodiment Voltage stabilizing module 205 the course of work
Are as follows: when switch unit 201 disconnects, the signal port connecting with the switch unit 201 is in vacant state, and passes through voltage
Detection module 204 detects that the pressure value of the port voltage of hanging signal port is in abnormality, then makes the first control switch
M1 and the second control switch M2 closure, Voltage stabilizing module 205 take charge and discharge measure to hanging signal port, make hanging signal
The port voltage of port is back to safety, normal range, has ensured that the signal port of driving chip 20 is safe always
State；On the contrary, when signal port is not hanging or the port voltage of hanging signal port is in safety, normal range,
Then the first control switch M1 and the second control switch M2 are disconnected, and the Voltage stabilizing module 205 can not adopt hanging signal port
Take charge and discharge measure；Therefore the Voltage stabilizing module 205 in the present embodiment utilizes the first nor gate NOR1's and the second nor gate NOR2
Logical operation function improves driving core in time to the abnormal port voltage exclusive PCR component of hanging signal port
The stability and controllability of the signal port control of piece 20, while Voltage stabilizing module 205 has more simplified circuit structure.
As an alternative embodiment, the first control switch M1 and the second control switch M2 is metal-oxide-semiconductor or three poles
Pipe, and the first control switch M1 and the second control switch M2 conducting polarity having the same；Such as first control switch M1 and
Second control switch M2 is NMOS tube or the first control switch M1 and the second control switch M2 is PNP type triode；Cause
Voltage stabilizing module 205 has more flexible circuit structure in this present embodiment.
As an alternative embodiment, Fig. 5 shows the another kind of driving chip 20 provided in an embodiment of the present invention
Structural representation；Driving chip 20 compared to the structure of driving chip 20 in Fig. 2, in Fig. 5 further include: reference voltage generation module
301。
Wherein, reference voltage generation module 301 is connect with the voltage detection module 204, and the reference voltage generates mould
Block 204 is for generating the first setting value and the second setting value.
If the voltage detection module 301 detects and is in the signal that the switch unit 201 of off-state connects
When the pressure value of the port voltage of port is lower than first setting value, then the Voltage stabilizing module 201 fills the signal port
The pressure value of the port voltage is promoted to first setting value or more by electricity；Or
If the voltage detection module 301 detects and is in the signal that the switch unit 201 of off-state connects
When the pressure value of the port voltage of port is higher than second setting value, then the Voltage stabilizing module 201 puts the signal port
The port voltage is pulled down to second setting value or less by electricity.
Wherein second setting value is greater than first setting value.
It should be noted that 301 concrete operating principle of reference voltage generation module and its course of work can refer in Fig. 5
The embodiment for stating port pressure stabilizing control method, will not be described in great detail herein.
In the structural representation that Fig. 5 shows driving chip 20, it can be judged according to the first setting value and the second setting value
Whether the pressure value of the port voltage of hanging signal port is in abnormal conditions out；Voltage detection module 204 can be for hanging
The port voltage of signal port accurately detected, if the port voltage that detection obtains hanging signal port is dry by the external world
It disturbs, then Voltage stabilizing module 205 promptly controls the port voltage of hanging signal port in normal amplitude range, to realize
For the pressure stabilizing control function of the hanging signal port of driving chip 20；To multiple letters of the driving chip 20 in the present embodiment
Number port can export always stablize, the port voltage of safety, avoid the port voltage of hanging signal port from being interfered, electricity
The phenomenon that sub- unit exception starts；The driving chip 20 has higher control stability and reliability.
As an alternative embodiment, the voltage detection module 204 is also used to: at the switch unit 201
When closed state, the port voltage for the signal port connecting with the switch unit 201 is not detected；Referring to above, work as switch
Unit 201 is closed, and is exported port voltage to corresponding signal port by switch unit 201 by drive control module 202,
Signal port is not in vacant state at this time, electronic component can be driven to be in stable, safe work by port voltage
State；Therefore the voltage detection module 204 in the present embodiment does not detect not hanging signal port, save for
The port voltage detection time of signal port, simplifies the inspection of the port voltage for signal port hanging in driving chip 20
Step is surveyed, the driving chip 20 can be realized more preferably control efficiency for electronic equipment, improve the reality of driving chip 20
With value and its scope of application.
Fig. 6 shows the structural representation of LED drive circuit 40 provided in an embodiment of the present invention, referring to Fig. 6, the LED
Driving circuit 40 include: driving chip 20 as described above, switch port Logic control module 401, multiple LED light, in longitudinal direction
The multi-strip scanning line G being arranged in array on the direction and multiple data lines D being arranged in array in a lateral direction；Switch port
Logic control module 401 is used for output switching signal, and the switching signal has connecting and disconnecting of the circuit control function；Multiple LED light with
The form of array arrangement forms rows and columns, and then multiple LED light access electric energy is to be in corresponding luminance；It is described to sweep
It retouches line D to connect with the switch port Logic control module 401, the scan line G also connects with the anode of LED light in same a line
It connects, the switching signal is for driving every a line LED light successively to open；Wherein there is corresponding switch letter on the scan line G
Number, when the switching signal on scan line G is exported to the anode of corresponding LED light, by switching signal can synchronously control it is same
All LED light realize illumination effect in a line；Illustratively, when switching signal is in different level states, then LED light is opened
It opens or turns off, for example, then driving LED light to open by switching signal when switching signal is the first level state；Work as switch
When signal is second electrical level state, then LED light shutdown is driven by switching signal.
To the switch port Logic control module 401 in the present embodiment can output mux signal, per opening all the way
There are one-to-one relationships for the level state of OFF signal and the on off operating mode of LED light；When switch port Logic control module 401
When output mux signal, each path switching signal is sequentially output effectively impulse level, passes through impulse level driving one
Row LED light shines；At the end of lastrow LED light shines, then continues through another path switching signal and drives another row LED light,
And so on, it realizes and process is driven for the dynamic scan of multirow LED light, multiple LED light can cooperate to show more
Coordinate, complete picture；Therefore in the present embodiment, it is sometime being only able to display wherein a line LED light, then in lower a period of time
Between show next line LED light, until be scanned driving to the LED light of all rows in LED drive circuit 40, display whole picture picture
Face；Therefore the LED light in the present embodiment has lower turntable driving cost, has ensured the moving picture display of multiple LED light
Effect.
The data line D is connect with a signal port of the driving chip 20, and the data line D is also and in same row
The cathode of LED light connects, when the LED light is opened, the signal port output port voltage of the driving chip 20, and the end
Mouth voltage drives the LED light to shine；In the present embodiment, on or off by switching signal control LED light, wherein driving
The port voltage of the signal port output of dynamic chip 20 includes that LED light controls information, can change LED light by port current
The parameters such as photochromic, brightness；Illustratively, referring to above, multiple signal ports of the driving chip 20 circuit sequentially conducting, when
When signal port is connected, there are port voltages on the data line D that connect with the signal port, and pass through data line D for end
The mouth voltage output LED light all into same row, to change the luminance of LED light in real time；To which the present embodiment passes through drive
Dynamic chip 20 is capable of the luminance of the multiple LED light of real-time control, ensures job stability and the safety of LED light.
Referring to the embodiment of Fig. 3 to Fig. 5, in the structure of LED drive circuit 40 provided in this embodiment, by driving core
The port voltage that piece 20 exports can adjust the luminances of multiple LED light in time, multiple signal ports of driving chip 20 according to
When secondary closure or disconnection, the illumination effect of real-time control LED light is capable of by the port voltage that driving chip 20 exports；In conjunction with
Above, when the signal port of driving chip 20 is hanging, the port voltage of hanging signal port will receive other noise signals
Interference, such as the influence of certain a line LED light, a certain on or off movement of column LED light leads to hanging signal port
Port voltage fluctuation causes LED light originally in the state of extinguishing, and disturbed component, which opens by mistake, to be opened；Driving chip in the present embodiment
20 can automatically detect level state of the signal port under vacant state, when hanging signal port is disturbed, drive
It moves the signal port that chip 20 can be hanging to this and takes pressure stabilizing control response, so that the port voltage of hanging signal port begins
It is able to maintain that eventually in safety, normal range, can safely drive multiple LED light to realize normal hair by driving chip 20
Light effect improves the control stability of LED drive circuit 40；To efficiently solve LED drive circuit in traditional technology
Middle LED light fault open is lit, the problem that the reliability of LED drive circuit is lower, control error is larger.
Fig. 7 shows the structural representation of display device 50 provided in an embodiment of the present invention, referring to Fig. 7, display device 50
Including LED drive circuit 40 as described above；Referring to the embodiment of Fig. 6, the display device 50 in the present embodiment can driven
It can be realized normal illumination effect under the manipulation of chip, and the port voltage of the signal port of driving chip can be located always
Port voltage inside stable range, display device 50 can avoid the interference of outside noise, the LED inside display device 50
Lamp can be realized dynamic scan to realize that more preferably clear, complete video, the picture brightness of display device 50 are more uniform and steady
It is fixed, the reliability and display effect of the application of display device 20 are improved, user can get more preferably visual experience；To this implementation
Display device 50 in example has more preferably video display quality, can be widely applicable for different industrial technical fields, practical
It is worth high；It efficiently solves the port voltage in traditional technology inside display device to be interfered and the unlatching of mistake, lead
The black region of picture in display device is caused to occur dark bright, display brightness is unstable, and the image display quality of display device is bad,
The lower problem of user's visual experience.
It should be noted that in each embodiment of above formula, the switch port Logic control module 401, reference voltage
The electricity in traditional technology all can be used in generation module 301, drive control module 202 and constant current port logic control module 203
Line structure is realized, is not specially limited herein to this；For example, switch port Logic control module 401 can be in traditional technology
Switching circuit realizes that the switching circuit includes metal-oxide-semiconductor array, which includes multiple metal-oxide-semiconductors being set side by side,
By controlling the conducting or shutdown of metal-oxide-semiconductor, so that the metal-oxide-semiconductor array can export the switching signal of varying level state,
The conducting or shutdown that multiple LED light are controlled by the switching signal can be such that corresponding LED light sends out by the switching signal
Light or extinguishing, improve the control response speed of LED light, and multiple LED light have higher drive control efficiency.
It should be noted that the driving chip 20 in Fig. 3 is used in LED illumination neck according to the embodiment of Fig. 6 and Fig. 7
Domain not constitutes the technology limiting for driving chip 20 in the present invention since this is only example, without prejudice to the driving
On the basis of the substantial technological feature of chip 20, those skilled in the art can be by the port pressure stabilizing controlling party of the driving circuit
Method and the driving chip 20 are applied to each different technical fields, such as Control of Electric Vehicles, unmanned aerial vehicle (UAV) control etc.；It is comprehensive
Upper described, the voltage for the signal port that the port pressure stabilizing control method in the present invention can be hanging for driving chip is examined
It surveys, to prevent the port voltage of hanging signal port from being interfered, electronic equipment is by false triggering；The port pressure stabilizing controlling party
Method greatly improves the control stability and reliability for electronic equipment, greatly improves the physical security of electronic equipment
Performance, the port pressure stabilizing control method can be compatible with suitable for each different industrial technical field, therefore the port is steady
It presses control method to have the function of the stabilization of electronic equipment, safety control technology in this field positive, will generate biggish
Industrial production value.
Various embodiments are described to various devices, circuit, device, system and or method herein.It elaborates very much
Specific details is to provide general construction, the function, system of the embodiment that the sum as described in the description is shown in the accompanying drawings
The thorough understanding made and used.However it will be understood by those skilled in the art that embodiment can be in not such certain detail
It is carried out in the case where section.In other examples, well known operation, component and element is described in detail, in order to avoid make in specification
In embodiment indigestion.It will be understood by those skilled in the art that being unrestricted in the embodiment with shown in herein
Property example, and therefore it can be appreciated that, can be in specific structure and function details disclosed herein representative and and different
The range of definite limitation embodiment.
Throughout the specification to " various embodiments ", " in embodiments ", " embodiment " or " embodiment party
The reference of formula " etc., which is meant, is included at least one embodiment about a particular feature, structure, or characteristic described in embodiment
In.Therefore, phrase " in various embodiments ", " in some embodiments ", " in one embodiment " or " implementing
In mode " etc. the appearance in appropriate place throughout the specification be not necessarily all referring to same embodiment.In addition, specific spy
Sign, structure or characteristic can combine in any suitable manner in one or more embodiments.Implement accordingly, with respect to one
The a particular feature, structure, or characteristic that mode shows or describes can entirely or partly with one or more of the other embodiment spy
Sign, structure or characteristic are combined, without assuming that such combination is not illogical or non-functional limitation.Any side
To with reference to (for example, add, subtract, top, lower part, upwards, downwards, the left side, the right, to the left, to the right, top, bottom ...
On ... under, it is vertical, horizontal, clockwise and anticlockwise) purpose to be for identification to help reader to understand present disclosure,
And limitation is not generated, especially with regard to the position of embodiment, orientation or use.
Although describing certain embodiments above with some the level of detail, those of skill in the art can be to institute
Disclosed embodiment makes many changes without departing from the scope of the present disclosure.Connection is with reference to (for example, attachment, coupling, connection
Deng) should be widely interpreted, and may include the intermediate member between the connection of element and relative motion between elements.Cause
This, connection reference does not necessarily imply that two elements are directly connected to/couple and are in fixed relationship each other." such as " entire
Use in specification should be widely interpreted and for providing the non-limitative example of embodiment of the present disclosure, and the disclosure
It is not limited to such example.Being intended that all affairs for including in the foregoing description or be shown in the accompanying drawings should be interpreted only
It is illustrative rather than restrictive.The variation in details or structure can be made without departing from the disclosure.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (10)
1. a kind of port pressure stabilizing control method of driving circuit, which is characterized in that the driving circuit includes multiple signal ports
With multiple switch unit, each switch unit connects one to one with each signal port；Each switch is single
Member access logic control signal, and be closed or disconnect according to the logic control signal；Each signal port is in phase
The switch unit manipulation answered is lower to load Single port voltage；The port pressure stabilizing control method includes:
Confirm that each switch unit is in closed state or off-state according to the logic control signal；
Detect and be in off-state the switch unit connection signal port port voltage；
The signal port is determined with the presence or absence of interference components, if the signal port has interference according to the pressure value of the port voltage
Component then eliminates the interference components by way of charge and discharge.
2. pressure stabilizing control method in port according to claim 1, which is characterized in that the pressure according to the port voltage
It is worth and determines that the signal port whether there is interference components, is disappeared by way of charge and discharge if the signal port is there are interference components
Except the interference components, specifically:
If the pressure value of the port voltage is lower than the first setting value, filled to the associated signal port of the port voltage
The pressure value of the port voltage is promoted to first setting value or more by electricity；Or
If the pressure value of the port voltage is higher than the second setting value, signal port associated for the port voltage is put
The pressure value of the port voltage is pulled down to second setting value or less by electricity.
3. pressure stabilizing control method in port according to claim 1, which is characterized in that be in closed form in the switch unit
State does not detect the port voltage for the signal port connecting with the switch unit then, and extraneous electronics is made by the port voltage
Equipment is in corresponding working condition.
4. pressure stabilizing control method in port according to claim 1, which is characterized in that the interference of current demand signal port point
The action signal that amount generates in closure or disconnection process from other switch units.
5. a kind of driving chip characterized by comprising
Multiple signal ports；
Multiple switch unit；
Drive control module, for generating multi-channel port voltage；First conduction terminal of each switch unit with it is each described
Signal port connects one to one, and the second conducting of each switch unit terminates the drive control module；
Constant current port logic control module is connect with the control terminal of each switch unit, the constant current port logic control
Module, which is used to generate, controls logic control signal switch unit closure or disconnected, and is also used to according to the logic control
Signal confirms that each switch unit is in closed state or off-state；
Voltage detection module is connect with multiple signal ports of the driving chip, the voltage detection module for detect with
It is in the port voltage of the signal port of the switch unit connection of off-state；If the signal port there are interference components,
Then the voltage detection module issues first detection signal；And
In Voltage stabilizing module, with the constant current port logic control module, the voltage detection module and the driving chip
Each signal port connection, the Voltage stabilizing module by way of charge and discharge for eliminating institute under the driving of first detection signal
State interference components.
6. driving chip according to claim 5, which is characterized in that the voltage detection module includes comparator；Wherein,
The first input end of the comparator is for accessing reference voltage, and the second input terminal of the comparator is for accessing the port
Voltage, the output end of the comparator is for exporting the first detection signal.
7. driving chip according to claim 5, which is characterized in that further include:
Reference voltage generation module is connect with the voltage detection module, and the reference voltage generation module is for generating first
Setting value and the second setting value；
If the voltage detection module detects and is in the port of the signal port of the switch unit connection of off-state
When the pressure value of voltage is lower than first setting value, then the Voltage stabilizing module charges to the signal port, by the port
The pressure value of voltage is promoted to first setting value or more；Or
If the voltage detection module detects and is in the port of the signal port of the switch unit connection of off-state
When the pressure value of voltage is higher than second setting value, then the Voltage stabilizing module discharges to the signal port, by the port
Voltage is pulled down to second setting value or less.
8. driving chip according to claim 5, which is characterized in that the voltage detection module is also used to: being opened described
It closes unit in the closure state, does not detect the port voltage for the signal port connecting with the switch unit.
9. a kind of LED drive circuit characterized by comprising
Such as the described in any item driving chips of claim 6-8；
Switch port Logic control module is used for output switching signal；
Multiple LED light form rows and columns in the form of array arrangement；
The multi-strip scanning line being arranged in array in a longitudinal direction, the scan line and the switch port Logic control module connect
It connects, the scan line is also connect with the anode of LED light in same a line, and the switching signal is for driving every a line LED light successively
It opens；And
One signal port of the multiple data lines being arranged in array in a lateral direction, the data line and the driving chip connects
It connecing, the data line is also connect with the cathode of LED light in same row, when the LED light is opened, the signal of the driving chip
Port output port voltage, the port voltage drive the LED light to shine.
10. a kind of display device, which is characterized in that including LED drive circuit as claimed in claim 9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110189695A (en) * | 2019-06-20 | 2019-08-30 | 昆山国显光电有限公司 | Voltage regulator circuit, display panel and its driving method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632635A (en) * | 2013-11-08 | 2014-03-12 | 电子科技大学 | Grouped hybrid driving circuit for power tubes |
| US20150002037A1 (en) * | 2013-06-28 | 2015-01-01 | Samsung Electro-Mechanics Co., Ltd. | Light emitting diode driving apparatus |
| CN204102540U (en) * | 2014-01-24 | 2015-01-14 | 上海得倍电子技术有限公司 | LED display scanning monitor and encoded control chip |
| CN104470052A (en) * | 2013-09-25 | 2015-03-25 | 美格纳半导体有限公司 | Light emitting diode driving circuit and light apparatus having the same |
| US9324273B2 (en) * | 2012-01-26 | 2016-04-26 | Samsung Display Co., Ltd. | Organic light emitting display and method of driving the same |
| CN205810342U (en) * | 2016-05-24 | 2016-12-14 | 北京集创北方科技股份有限公司 | LED display driving system and LED display |
| CN106658811A (en) * | 2015-10-30 | 2017-05-10 | 常州明石晶电科技有限公司 | LED light source and driving circuit thereof |
| CN206433225U (en) * | 2017-02-07 | 2017-08-22 | 贵州大学 | A kind of piecewise linearity constant current LED drive circuit |
| CN109377959A (en) * | 2018-12-07 | 2019-02-22 | 合肥鑫晟光电科技有限公司 | Show drive voltage supply device, display device and alternating current shutdown control method |
-
2019
- 2019-01-25 CN CN201910074593.9A patent/CN109637436B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9324273B2 (en) * | 2012-01-26 | 2016-04-26 | Samsung Display Co., Ltd. | Organic light emitting display and method of driving the same |
| US20150002037A1 (en) * | 2013-06-28 | 2015-01-01 | Samsung Electro-Mechanics Co., Ltd. | Light emitting diode driving apparatus |
| CN104470052A (en) * | 2013-09-25 | 2015-03-25 | 美格纳半导体有限公司 | Light emitting diode driving circuit and light apparatus having the same |
| CN103632635A (en) * | 2013-11-08 | 2014-03-12 | 电子科技大学 | Grouped hybrid driving circuit for power tubes |
| CN204102540U (en) * | 2014-01-24 | 2015-01-14 | 上海得倍电子技术有限公司 | LED display scanning monitor and encoded control chip |
| CN106658811A (en) * | 2015-10-30 | 2017-05-10 | 常州明石晶电科技有限公司 | LED light source and driving circuit thereof |
| CN205810342U (en) * | 2016-05-24 | 2016-12-14 | 北京集创北方科技股份有限公司 | LED display driving system and LED display |
| CN206433225U (en) * | 2017-02-07 | 2017-08-22 | 贵州大学 | A kind of piecewise linearity constant current LED drive circuit |
| CN109377959A (en) * | 2018-12-07 | 2019-02-22 | 合肥鑫晟光电科技有限公司 | Show drive voltage supply device, display device and alternating current shutdown control method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110189695A (en) * | 2019-06-20 | 2019-08-30 | 昆山国显光电有限公司 | Voltage regulator circuit, display panel and its driving method |
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|---|---|
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