CN110174853A - The stabilising arrangement and method of loaded work piece electric current - Google Patents
The stabilising arrangement and method of loaded work piece electric current Download PDFInfo
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- CN110174853A CN110174853A CN201910508593.5A CN201910508593A CN110174853A CN 110174853 A CN110174853 A CN 110174853A CN 201910508593 A CN201910508593 A CN 201910508593A CN 110174853 A CN110174853 A CN 110174853A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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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]
Abstract
This application involves the stabilising arrangements and method of a kind of loaded work piece electric current, belong to electronic technology field, which includes: current source, load control assembly, original load and built-in load；The original load and the built-in load are connected by the load control assembly with the output end of the current source respectively；The load control assembly is used to control the connection or disconnection of the original load and the current source, and controls the connection or disconnection of the built-in load Yu the current source；Wherein, the C-V characteristic of the built-in load and the C-V characteristic of the original load match；It can solve the original level jump for being supported on current source output when state switches, influence the size of current that current control component control current source externally provides, the problem for causing the operating current of original load unstable；It can achieve the effect for stablizing the operating current of original load.
Description
Technical field
This application involves the stabilising arrangement of loaded work piece electric current and methods, belong to electronic technology field.
Background technique
At present LED display using more and more extensive.The circuit structure of LED display includes current source and current source
Connected LED load, the load control assembly for being connected to or disconnecting with current source for controlling LED load (such as: switch) and
For controlling the consistent current control component of electric current of each current source output.
In foregoing circuit structure, current source provides operating current for LED load.Between LED load and current source into
When row state switches (such as: switch to off-state from connected state or switch to connected state from off-state), electric current
The jump of source output terminal level can generate interference to current control component, at this point, current control component control current source externally mentions
The operating current of confession, which has, is never stabilized to stable establishment process, to influence the display effect of LED display.
Summary of the invention
This application provides the stabilising arrangements and method of a kind of loaded work piece electric current, can solve the original state that is supported on and cut
The level jump of current source output when changing influences the size of current that current control component control current source externally provides, causes
The unstable problem of the operating current of original load.The application provides the following technical solutions:
In a first aspect, providing a kind of stabilising arrangement of loaded work piece electric current, described device includes: current source, load control
Component, original load and built-in load processed；
The current source, for providing operating current for the original load；
The original load and the built-in load pass through the output of the load control assembly and the current source respectively
End is connected；The load control assembly is used to control the connection or disconnection of the original load and the current source, and controls institute
State the connection or disconnection of built-in load Yu the current source；
Wherein, the C-V characteristic of the built-in load and the C-V characteristic of the original load match.
Optionally, the load control assembly, is used for:
Before the original load switches to working condition from resting state, the built-in load and the electric current are controlled
Source connection；
When the original load switches to working condition from resting state, the built-in load and the current source are controlled
It disconnects；
When the original load switches to resting state from working condition, the built-in load and the current source are controlled
Connection.
Optionally, the load control assembly, is used for:
The first preset duration before the original load switches to working condition from resting state, controls described built-in
Load is connected to the current source；
Wherein, first preset duration is based on when the original load is disconnected with the current source, from described interior
Build load be connected to the current source moment start to flow through the built-in load electric current stabilization the moment end it is experienced when
Long determination.
Optionally, the load control assembly, is used for:
The second preset duration after the original load switches to resting state from working condition, controls described built-in
Load is disconnected with the current source；
Wherein, second preset duration is to be based on being connected in the original load with the current source, and flow through described
When the electric current of original load is stablized, to flowing through the original load since the original load disconnects the moment with the current source
Electric current end what duration experienced determined when being less than or equal to preset threshold.
Optionally, the original load includes LED display unit.
Optionally, described device further includes current control component, the output of the current control component and the current source
End is connected；
The electric current that the current control component is used to control connected current source output is consistent.
Second aspect provides a kind of antihunt means of loaded work piece electric current, the loaded work piece provided for first aspect
In the stabilising arrangement of electric current, which comprises
Before the original load switches to working condition from resting state, the built-in load and the electric current are controlled
Source connection；
When the original load switches to working condition from resting state, the built-in load and the current source are controlled
It disconnects；
When the original load switches to resting state from working condition, the built-in load and the current source are controlled
Connection.
Optionally, described before the original load switches to working condition from resting state, it controls described built-in negative
Load is connected to the current source, comprising:
The first preset duration before the original load switches to working condition from resting state, controls described built-in
Load is connected to the current source；
Wherein, first preset duration is based on when the original load is disconnected with the current source, from described interior
Build load be connected to the current source moment start to flow through the built-in load electric current stabilization the moment end it is experienced when
Long determination.
Optionally, the method also includes:
The second preset duration after the original load switches to resting state from working condition, controls described built-in
Load is disconnected with the current source；
Wherein, second preset duration is to be based on being connected in the original load with the current source, and flow through described
When the electric current of original load is stablized, to flowing through the original load since the original load disconnects the moment with the current source
Electric current end what duration experienced determined when being less than or equal to preset threshold.
The third aspect, provides a kind of stabilising arrangement of loaded work piece electric current, and described device includes:
First control module, for it is described it is original load switch to working condition from resting state before, described in control
Built-in load is connected to the current source；
Second control module, for controlling in described when the original load switches to working condition from resting state
Load is built to disconnect with the current source；
Third control module, for controlling in described when the original load switches to resting state from working condition
Load is built to be connected to the current source.
Fourth aspect, provides a kind of stabilising arrangement of loaded work piece electric current, and described device includes processor and memory；Institute
It states and is stored with program in memory, described program is loaded as the processor and executed to realize load work described in second aspect
Make the antihunt means of electric current.
5th aspect, provides a kind of computer readable storage medium, program, described program is stored in the storage medium
It is loaded as the processor and executes the antihunt means to realize loaded work piece electric current described in second aspect.
The beneficial effects of the present application are as follows: pass through setting current source, load control assembly, original load and built-in load；
Original load and built-in load are connected with the output end of current source respectively；Load control assembly is connected with the output end of current source；
The C-V characteristic of built-in load and the C-V characteristic of original load match；Can solve it is original be supported on state switching when electric current
The level jump of source output terminal influences the size of current that current control component control current source externally provides, leads to original load
The unstable problem of operating current；Due to it is original load from resting state switch to working condition, it is in running order or
When person switches to resting state from working condition, load control assembly can control built-in load carry out corresponding state switching with
Keep it is original therefore the level equalization of current source output will not generate interference to current control component when being supported on work,
So as to achieve the effect that stablize the operating current of original load.
Above description is only the general introduction of technical scheme, in order to better understand the technological means of the application,
And can be implemented in accordance with the contents of the specification, with the preferred embodiment of the application and cooperate attached drawing below detailed description is as follows.
Detailed description of the invention
Fig. 1 is the electrical block diagram for the LED display in the prior art that the application one embodiment provides；
Fig. 2 is electrical block diagram when closing the switch that the application one embodiment provides；
Fig. 3 is the electrical block diagram when switch that the application one embodiment provides disconnects；
Fig. 4 is the schematic diagram for the LED display unit working condition that the application one embodiment provides；
Fig. 5 is the schematic diagram of the waveform for the switch work that the application one embodiment provides；
Fig. 6 is the schematic diagram of the waveform for the switch work that another embodiment of the application provides；
Fig. 7 is the structural schematic diagram of the stabilising arrangement for the loaded work piece electric current that the application one embodiment provides；
Fig. 8 is the schematic diagram of the original load that the application one embodiment provides and built-in load working sequence；
Fig. 9 is the schematic diagram of the original load that another embodiment of the application provides and built-in load working sequence；
Figure 10 is the flow chart of the antihunt means for the loaded work piece electric current that the application one embodiment provides；
Figure 11 is the block diagram of the stabilising arrangement for the loaded work piece electric current that the application one embodiment provides；
Figure 12 is the block diagram of the stabilising arrangement for the loaded work piece electric current that the application one embodiment provides.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the application is described in further detail.Implement below
Example is not limited to scope of the present application for illustrating the application.
Fig. 1 is the electrical block diagram for the LED display in the prior art that the application one embodiment provides.LED is aobvious
The circuit structure of display screen includes current source 1, load control assembly 2, at least original load 3 and current control component 4 all the way.
It is illustrated by taking the original load in 2 tunnels as an example in Fig. 1, original load can be 1 tunnel or more in other embodiments
Road.
Current source 1 is used to provide operating current for the original load 3 connected.
The output end of current control component 4 and multiple current sources 1 (such as: the current source 11 and 12 in Fig. 1) is connected, with control
It is consistent to make the operating current that multiple current sources 1 are provided to the original load 3 of correspondence.
Original load 3 includes LED display unit.
Original load 3 is connected by loading control assembly 2 with current source 1.Wherein, load control assembly 2 is for controlling original
The connection or disconnection of beginning load 3 and current source 1.Wherein, load control assembly 2 can be switching circuit.
Load control assembly 2 controls lighting or extinguishing for the LED display unit in original load 3.To load control assembly 2
For switch, with reference to Fig. 2, when switch 21 is closed, LED display unit 31 is connected to current source 1, at this point, LED display unit
31 light, and original load 3 is in running order；With reference to Fig. 3, when switch 21 disconnects, LED display unit 31 and current source 1 are disconnected
It opens, at this point, LED display unit 31 extinguishes, original load 3 is in resting state.Fig. 2 and Fig. 3 is with the load original all the way in Fig. 1
For be illustrated, the principle of the original load of another way is identical, and details are not described herein by the application.
With reference to Fig. 4, LED display unit is not lighted not instead of always in use, periodically based on the display cycle
It lights.As can be seen from FIG. 4, a display cycle T includes display time and blanking time.Within the display time of display cycle,
Switch 21 is closed, and current source 11 externally light by output electric current, LED display unit 31；Within the blanking time of display cycle, switch
21 disconnect, and current source 11 does not export electric current externally, and LED display unit 31 extinguishes.
Since LED display unit 31 needs to switch between the state lighted and extinguished, correspondingly, current source is needed logical
Switch between road, open circuit.With reference to Fig. 2, it is assumed that when LED display unit 31 is lighted, the pressure difference at 3 both ends of original load is Vload；Electricity
The supply voltage in stream source 1 is VCC.At this point, A level point is V when LED display unit 31 is lightedload；When LED display unit 31
When extinguishing, A level point is VCC.By the above process it is found that when LED display unit 31 is switched to by extinguishing and is lighted, A level point meeting
V is dropped to from VCC jumpload.At this point, generate instantaneous interference Δ v/ Δ t will affect current control component 4 control current source 11 it is right
The size of current of outer offer, in this way, the electric current that externally provides in connection of current source 1 have it is unstable to stable establishment process,
To influence LED display unit 31 in display effect this period.Instantaneous interference Δ v/ Δ t is bigger, and current source 11 externally provides
It is longer by the unstable time to stable establishment process when electric current, the display effect of LED display unit 31 is influenced bigger.
Wherein, the influence to the display effect of LED display unit 31 includes that high contrast is caused to be interfered.
In the first scene, in circuit structure shown in Fig. 1, if load control assembly 2 is according to waveform shown in fig. 5
The connection or disconnection for controlling two-way original load 3 and current source 1, at the t1 moment, LED display unit 31 and LED display unit 32
It all lights, current source 11 and 12 output end level jump of current source generate instantaneous interference and influence current control component 4, thus shadow
The electric current of current source 11 and current source 12 externally exported is rung.
In second of scene, in circuit structure shown in Fig. 1, if load control assembly 2 is according to waveform shown in fig. 6
The connection or disconnection of two-way original load 3 and current source 1 are controlled, at the t1 moment, LED display unit 31 is lighted, LED display unit
32 still extinguish, and 11 output end level jump of current source generates instantaneous interference and influences current control component 4.
Theoretically, LED is shown in the display brightness and second of scene when LED display unit 31 is lighted in the first scene
Display brightness when unit 31 is lighted is identical.However, in actual use, current control component 4 in the first scene by
The interference that two-way level jump generates, and what the current control component 4 in second of scene was only generated by level jump all the way
Interference, at this point, the interference that the current control component 4 in the first scene is subject to is the current control component 4 in second of scene
Undulate quantity when 2 times of the interference being subject to, the current control component 4 in the first scene control current source 11 and current source 12 is more
Greatly, it is shown at this point, will cause LED in the display brightness and second of scene when LED display unit 31 is lighted in the first scene
Display brightness when unit 31 is lighted is inconsistent.
Based on above content it is found that the current source more than 1 that current control component 4 connects, the maximum instantaneous interference being subject to are got over
Greatly, it is longer that stable duration is never stabilized to electric current.
Based on above-mentioned technical problem, the application provides a kind of stabilising arrangement of loaded work piece electric current, which passes through every
In the original load in road, it is additionally arranged in parallel a built-in load, the C-V characteristic of the C-V characteristic of the built-in load and original load
Match；By it is original load from resting state switch to working condition, it is in running order or from working condition switch
When to resting state, load control assembly, which can control built-in load and carry out corresponding state switching, is supported on work to keep original
When making, the level equalization of current source output when so that original load is in running order, will not be generated since current source exports
The level jump at end influences the problem of stablizing display of LED display unit, it is ensured that will not when the state switching of original load
Since level jump generates interference to current control component, to promote the display effect of LED display unit.
It should be added that the stabilising arrangement of loaded work piece electric current provided by the present application, is suitable for original minus incessantly
The usage scenario including LED display unit is carried, can be used for the scene that original load is other kinds of load.
It describes in detail below to the stabilising arrangement of loaded work piece electric current provided by the present application.
Fig. 7 is the structural schematic diagram of the stabilising arrangement for the loaded work piece electric current that the application one embodiment provides, such as Fig. 1 institute
Show, which includes at least: current source 710, load control assembly 720, original load 730 and built-in load 740.
Current source 710, for providing operating current for original load 730.Wherein, original load 730 refers to current source 710
The load of original connection.In the present embodiment, current source 710 is also used to provide operating current for built-in load 740；Built-in load
740 be load that is additionally being arranged and being in parallel with original load 730.
Original load 730 and built-in load 740 pass through the output end phase of load control assembly 720 and current source 710 respectively
Even.Wherein, the C-V characteristic of built-in load 740 and the C-V characteristic of original load 730 match, and that is to say the two C-V characteristic
Unanimously.
Wherein, load control assembly 720 is used to control the connection or disconnection of original load 730 and current source 710, and controls
The connection or disconnection of built-in load 740 and current source 710.
In the application, when original load 730 is connected to current source 710, original load 730 is in running order；Original minus
When carrying 730 with the disconnection of current source 710, original load 730 is in resting state.When built-in load 740 is connected to current source 710,
Built-in load 740 is in running order；When built-in load 740 and current source 710 disconnect, built-in load 740 is in resting state.
Optionally, original load 730 can be used same load control assembly 720 with built-in load 740 and control；Alternatively,
Also different load control assemblies 720 can be used to control.Loading control assembly 720 can be switching circuit.
Optionally, the stabilising arrangement of loaded work piece electric current further includes current control component 750.Current control component 750 can
It is consistent with the output electric current for controlling multiple current source 710 to be connected with the control terminal of the size of current of multiple current sources 710.
Optionally, original load 730 includes LED display unit.The type for the load that built-in load 740 includes can be with original
The type for beginning to load the load in 730 is identical or different, such as: the type of the load in built-in load 740 and original load 730
In load type it is identical, be LED display unit.
With reference to original load shown in Fig. 8 and the working timing figure of built-in load, in the present embodiment, control assembly is loaded
720 are also used to:
1, before original load 730 switches to working condition from resting state, built-in load 740 and current source are controlled
710 connections.In an example it is assumed that it is original load 730 it is in running order when both ends pressure difference be Vload, built-in load
740 is identical as the C-V characteristic of original load 730, and therefore, the pressure difference at both ends is also when built-in load 740 is in running order
Vload.Original load 730 enters before working condition, if built-in load 740 is connected to current source 710, A point (current source 710
Output end) level be Vload。
In addition, though the jump of A level point, which generates instantaneous interference, influences electricity when built-in load 740 is connected to current source 710
Flow control component 750, but since original load 730 is in rest, interference at this time will not produce original load 730
It is raw to influence.
2, when original load 730 switches to working condition from resting state, control built-in load 740 and current source 710
It disconnects.Based on above-mentioned 1st point of example, original load 730 is when switching to working condition from resting state, original load 730 with
Current source 710 is connected to, and the level of A point (output end of current source 710) is Vload, at this point, A level point does not generate jump.
3, when original load 730 switches to resting state from working condition, control built-in load 740 and current source 710
Connection.Example based on above-mentioned 1st point and the 2nd point, when original load 730 switches to resting state from working condition, original minus
730 are carried to disconnect with current source 710, at this point, built-in load 740 is connected to current source 710, A point (output end of current source 710)
Level is still Vload, at this point, A level point does not generate jump.
According to above-mentioned 3 processes it is found that it is original load 730 it is in running order when, it is in running order before and after,
The level of 710 output end of current source will not all jump, therefore will not generate interference to current control component 750, thus will not shadow
Ring the operating current of original load 730.Based on this, when original load 730 includes LED display unit, original load 730 is carried out
When state switches, since the operating current of LED display unit is stablized, will not influence LED display unit stablizes display.
Optionally, with reference to the working timing figure of original load and built-in load shown in Fig. 9, in order to reduce loaded work piece electricity
The power consumption of the stabilising arrangement of stream, load control assembly 720 is before original load 730 switches to working condition from resting state
First preset duration, control built-in load 740 are connected to current source 710.
Wherein, the first preset duration be based on it is original load 730 with current source 710 disconnect when, from built-in load 740 with
The connection moment of current source 710 starts to the electric current stable moment for flowing through built-in load 740 to end what duration experienced determined.Show
Meaning property, the first preset duration is greater than or equal to built-in negative to flowing through since built-in load 740 is connected to the moment with current source 710
The electric current for carrying 740 stablizes moment cut-off duration experienced.
Since in actual implementation, when current source 710 is that built-in load 740 provides electric current, which is not flown up
But be gradually increasing；When current source 710 stops providing electric current for built-in load 740, which is not moment to stop but have
The process of one decline, therefore, built-in load 740, which switches to working condition from resting state, a transition.According to above-mentioned interior
Hold it is found that built-in load 740 from resting state switch to working condition needed for duration are as follows: flow through the electric current of built-in load 740
The duration for rising to running current (operating current is stablized) from 0.
Due to it is original load 730 switch to working condition from resting state before the first preset duration just control it is built-in
Load 740 is connected to current source 710, it is ensured that before original load 730 switches to working condition, current source 710 is inside
It builds the electric current that load 740 provides to stablize, there is no level jumps when at this point, switching to working condition after original load 730
Become.Therefore, in the present embodiment, both do not needed built-in load 740 it is original load 730 before switching to working condition first
It is connected to before preset duration with current source 710, and can guarantee that there is no electricity when original load 730 switches to working condition later
Flat jump can achieve the effect that power consumption is reduced while steady load operating current.
Optionally, it with reference to Fig. 9, loads control assembly 720 and is also used to: being switched to not in original load 730 from working condition
The second preset duration after breath state, control built-in load 740 and current source 710 disconnect.Wherein, the second preset duration is base
When the electric current for 730 be connected to current source 710 in original load, and flowing through original load 730 is stablized, from it is original load 730 and
The disconnection moment of current source 710 starts to end when being less than or equal to preset threshold to the electric current for flowing through original load 730 experienced
What duration determined.Schematically, the second preset duration is greater than or equal to from original load 730 and the disconnection moment of current source 710 and opens
Begin to end duration experienced when being less than or equal to preset threshold to the electric current for flowing through original load 730.Wherein, preset threshold can
Think 0, naturally it is also possible to for it is other be slightly larger than 0 numerical value, the present embodiment do not limit the value of preset threshold.
Since in actual implementation, when current source 710 is that original load 730 provides electric current, which is not flown up
But be gradually increasing；When current source 710 stops providing electric current for original load 730, which is not moment to stop but have
The process of one decline, therefore, original load 730, which switches to resting state from working condition, a transition.According to above-mentioned interior
Hold it is found that it is original load 730 from working condition switch to resting state needed for duration are as follows: flow through it is original load 730 electric current
0 duration is dropped to from running current (stable operating current).
The second preset duration after original load 730 switches to resting state from working condition controls built-in load
740 disconnect with current source 710, although at this point, the level of current source output has jump, due to original load 730
Resting state is switched to completely, therefore the jump will not have an impact original load 730.Therefore, it in the present embodiment, is not required to
Built-in load 740 is wanted to connect after switching to the second preset duration after resting state with current source 710 in original load 730
It is logical, it can achieve the effect that power consumption is reduced while steady load operating current.
In conclusion the stabilising arrangement of loaded work piece electric current provided in this embodiment, is controlled by setting current source, load
Component, original load and built-in load；Original load and built-in load are connected with the output end of current source respectively；Load control group
Part is connected with the output end of current source；The C-V characteristic of built-in load and the C-V characteristic of original load match；It can solve
The original level jump for being supported on current source output when state switches influences current control component control current source and externally provides
Size of current, the problem for causing the operating current of original load unstable；Due to being switched in original load from resting state
Working condition, in running order or when switching to resting state from working condition, load control assembly can control built-in
Load carry out corresponding state switching with keep it is original be supported on work when, the level equalization of current source output therefore will not
Interference is generated to current control component, so as to achieve the effect that stablize the operating current of original load.
In addition, due in original the first preset duration loaded before switching to working condition from resting state just controls
It builds load to be connected to current source, it is ensured that before original load switches to working condition, current source is provided to built-in load
Electric current stablize, there is no level jumps when at this point, switching to working condition after original load.Therefore, the present embodiment
In, it had not both needed built-in load and had connected before original the first preset duration being supported on before switching to working condition with current source
It is logical, and can guarantee that there is no level jumps when original load switches to working condition later, can achieve in steady load
The effect of power consumption is reduced while operating current.
In addition, the second preset duration after original load switches to resting state from working condition controls built-in load
It is disconnected with current source, although at this point, the level of current source output has jump, since original load switches completely
To resting state, therefore the jump will not have an impact original load.Therefore, it in the present embodiment, does not need built-in load and exists
It is connected to, can achieve in steady load work with current source after original the second preset duration being supported on after switching to resting state
Make the effect that power consumption is reduced while electric current.
Figure 10 be the application one embodiment provide loaded work piece electric current antihunt means flow chart, the present embodiment with
This method is applied in the stabilising arrangement of loaded work piece electric current shown in Fig. 7, and the executing subject of each step is in the system
Load control assembly 720 in for be illustrated.This method includes at least following steps:
Step 1001, before original load switches to working condition from resting state, built-in load and current source are controlled
Connection.
In one example, it is original load switch to working condition from resting state before period, built-in load with
Current source is always maintained at connection.
In another example, the first preset duration before original load switches to working condition from resting state,
Control built-in load is connected to current source；Wherein, the first preset duration is based on when original load is disconnected with current source, from interior
It builds load and is connected to the moment with current source and start to the electric current for flowing through built-in load to stablize the moment and end what duration experienced determined.
Since the first preset duration before original load switches to working condition from resting state just controls built-in bear
Load is connected to current source, it is ensured that it is original load switch to working condition before, electricity that current source is provided to built-in load
Stream is stablized, and there is no level jumps when at this point, switching to working condition after original load.Therefore, in the present embodiment, both
It does not need built-in load to be connected to before original the first preset duration being supported on before switching to working condition with current source, and can
There is no level jump when guaranteeing that original load switches to working condition later, can achieve in steady load operating current
While reduce power consumption effect.
Step 1002, when original load switches to working condition from resting state, control built-in load and current source are disconnected
It opens.
Step 1003, when original load switches to resting state from working condition, control built-in load and current source connect
It is logical.
In one example, after original load switches to resting state from working condition, load control assembly is kept
Built-in load is connected to current source.
In another example, it is original load from working condition switch to resting state after the second preset duration it
Afterwards, control built-in load and current source disconnect.Wherein, the second preset duration be based on being connected in original load with current source, and
It is small to the electric current for flowing through original load since original load disconnects the moment with current source when flowing through the electric current stabilization of original load
End what duration experienced determined when preset threshold.
The second preset duration control built-in load and electricity after original load switches to resting state from working condition
Stream source disconnects, although at this point, the level of current source output has jump, since original load has switched to not completely
Breath state, therefore the jump will not have an impact original load.Therefore, in the present embodiment, built-in load is not needed original
It is connected to, can achieve in steady load work electricity with current source after being supported on the second preset duration after switching to resting state
The effect of power consumption is reduced while stream.
Correlative detail refers to above-mentioned apparatus embodiment.
In conclusion the antihunt means of loaded work piece electric current provided in this embodiment, by loading original from rest shape
State switches to before working condition, and control built-in load is connected to current source；Work is switched to from resting state in original load
When state, control built-in load and current source are disconnected；When original load switches to resting state from working condition, control built-in
Load is connected to current source；It can solve the original level jump for being supported on current source output when state switches, influence electric current
The size of current that control assembly control current source externally provides, the problem for causing the operating current of original load unstable；Due to
Working condition, in running order or switch to resting state from working condition is switched to from resting state in original load
When, load control assembly can control built-in load carry out corresponding state switching with keep it is original be supported on work when, electric current
The level of source output terminal is constant, therefore, will not generate interference to current control component, stablize original load so as to reach
The effect of operating current.
Figure 11 is the block diagram of the stabilising arrangement for the loaded work piece electric current that the application one embodiment provides, and the present embodiment is with this
Device is applied to be illustrated in the stabilising arrangement of loaded work piece electric current shown in Fig. 7.The device includes at least following several
A module: the first control module 1110, the second control module 1120 and third control module 1130.
First control module 1110, for controlling before the original load switches to working condition from resting state
The built-in load is connected to the current source；
Second control module 1120, for controlling institute when the original load switches to working condition from resting state
It states built-in load and the current source disconnects；
Third control module 1130, for controlling institute when the original load switches to resting state from working condition
Built-in load is stated to be connected to the current source.
Correlative detail refers to above-described embodiment.
It should be understood that the stabilising arrangement of the loaded work piece electric current provided in above-described embodiment is in steady load work electricity
When stream, only the example of the division of the above functional modules, in practical application, it can according to need and by above-mentioned function
Distribution is completed by different functional modules, i.e., the internal structure of the stabilising arrangement of loaded work piece electric current is divided into different functions
Module, to complete all or part of the functions described above.In addition, the stabilization of loaded work piece electric current provided by the above embodiment
The antihunt means embodiment of device and loaded work piece electric current belongs to same design, and specific implementation process is detailed in embodiment of the method,
Which is not described herein again.
Figure 12 is the block diagram of the stabilising arrangement for the loaded work piece electric current that the application one embodiment provides, which can be
Stabilising arrangement comprising loaded work piece electric current shown in FIG. 1.The device includes at least processor 1201 and memory 1202.
Processor 1201 may include one or more processing cores, such as: 4 core processors, 12 core processors etc..
Processor 1201 can use DSP (Digital Signal Processing, Digital Signal Processing), FPGA (Field-
Programmable Gate Array, field programmable gate array), PLA (Programmable Logic Array, may be programmed
Logic array) at least one of example, in hardware realize.Processor 1201 also may include primary processor and coprocessor, master
Processor is the processor for being handled data in the awake state, also referred to as CPU (Central Processing
Unit, central processing unit)；Coprocessor is the low power processor for being handled data in the standby state.
Memory 1202 may include one or more computer readable storage mediums, which can
To be non-transient.Memory 1202 may also include high-speed random access memory and nonvolatile memory, such as one
Or multiple disk storage equipments, flash memory device.In some embodiments, the non-transient computer in memory 1202 can
Storage medium is read for storing at least one instruction, at least one instruction performed by processor 1201 for realizing this Shen
Please in embodiment of the method provide loaded work piece electric current antihunt means.
In some embodiments, the stabilising arrangement of loaded work piece electric current is also optional includes: peripheral device interface and at least
One peripheral equipment.It can be connected by bus or signal wire between processor 1201, memory 1202 and peripheral device interface.
Each peripheral equipment can be connected by bus, signal wire or circuit board with peripheral device interface.Schematically, peripheral equipment packet
It includes but is not limited to: radio circuit, touch display screen, voicefrequency circuit and power supply etc..
Certainly, the stabilising arrangement of loaded work piece electric current can also include less or more component, the present embodiment to this not
It limits.
Optionally, the application is also provided with a kind of computer readable storage medium, in the computer readable storage medium
It is stored with program, the stabilization that described program is loaded by processor and executed to realize the loaded work piece electric current of above method embodiment
Method.
Optionally, the application is also provided with a kind of computer product, which includes computer-readable storage medium
Matter is stored with program in the computer readable storage medium, and described program is loaded by processor and executed to realize above-mentioned side
The antihunt means of the loaded work piece electric current of method embodiment.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of stabilising arrangement of loaded work piece electric current, which is characterized in that described device include: current source, load control assembly,
Original load and built-in load；
The current source, for providing operating current for the original load；
The original load and the built-in load pass through the output end phase of the load control assembly and the current source respectively
Even；The load control assembly is used to control the connection or disconnection of the original load and the current source, and controls in described
Build the connection or disconnection of load with the current source；
Wherein, the C-V characteristic of the built-in load and the C-V characteristic of the original load match.
2. the apparatus according to claim 1, which is characterized in that the load control assembly is used for:
Before the original load switches to working condition from resting state, controls the built-in load and the current source connects
It is logical；
When the original load switches to working condition from resting state, controls the built-in load and the current source is disconnected
It opens；
When the original load switches to resting state from working condition, controls the built-in load and the current source connects
It is logical.
3. the apparatus of claim 2, which is characterized in that the load control assembly is used for:
The first preset duration before the original load switches to working condition from resting state, controls the built-in load
It is connected to the current source；
Wherein, first preset duration is based on when the original load is disconnected with the current source, from described built-in negative
Carry be connected to the current source moment start it is true to the electric current stabilization moment cut-off duration experienced for flowing through the built-in load
Fixed.
4. the apparatus of claim 2, which is characterized in that the load control assembly is used for:
The second preset duration after the original load switches to resting state from working condition, controls the built-in load
It is disconnected with the current source；
Wherein, second preset duration is to be based on being connected in the original load with the current source, and flow through described original
When the electric current of load is stablized, to the electricity for flowing through the original load since the original load disconnects the moment with the current source
Stream ends what duration experienced determined when being less than or equal to preset threshold.
5. device according to any one of claims 1 to 4, which is characterized in that the original load includes LED display unit.
6. device according to any one of claims 1 to 4, which is characterized in that described device further includes current control component, institute
Current control component is stated to be connected with the output end of the current source；
The electric current that the current control component is used to control connected current source output is consistent.
7. a kind of antihunt means of loaded work piece electric current, which is characterized in that for any load work of claim 1 to 6
Make in the stabilising arrangement of electric current, which comprises
Before the original load switches to working condition from resting state, controls the built-in load and the current source connects
It is logical；
When the original load switches to working condition from resting state, controls the built-in load and the current source is disconnected
It opens；
When the original load switches to resting state from working condition, controls the built-in load and the current source connects
It is logical.
8. the method according to the description of claim 7 is characterized in that described switch to work from resting state in the original load
Before making state, controls the built-in load and is connected to the current source, comprising:
The first preset duration before the original load switches to working condition from resting state, controls the built-in load
It is connected to the current source；
Wherein, first preset duration is based on when the original load is disconnected with the current source, from described built-in negative
Carry be connected to the current source moment start it is true to the electric current stabilization moment cut-off duration experienced for flowing through the built-in load
Fixed.
9. the method according to the description of claim 7 is characterized in that the method also includes:
The second preset duration after the original load switches to resting state from working condition, controls the built-in load
It is disconnected with the current source；
Wherein, second preset duration is to be based on being connected in the original load with the current source, and flow through described original
When the electric current of load is stablized, to the electricity for flowing through the original load since the original load disconnects the moment with the current source
Stream ends what duration experienced determined when being less than or equal to preset threshold.
10. a kind of stabilising arrangement of loaded work piece electric current, which is characterized in that described device includes:
First control module, for controlling described built-in before the original load switches to working condition from resting state
Load is connected to the current source；
Second control module, for controlling described built-in negative when the original load switches to working condition from resting state
It carries and is disconnected with the current source；
Third control module, for controlling described built-in negative when the original load switches to resting state from working condition
Load is connected to the current source.
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| CN201910508593.5A CN110174853B (en) | 2019-06-13 | 2019-06-13 | Load working current stabilizing device and method |
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|---|---|---|---|
| CN201910508593.5A CN110174853B (en) | 2019-06-13 | 2019-06-13 | Load working current stabilizing device and method |
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| DE102011118555A1 (en) * | 2010-11-19 | 2012-05-24 | Magna Mirrors Holding Gmbh | Stabilizing unit for load current in electrical consumer, such as light emitting diodes in vehicle power supply system of passenger vehicle, comprises controllable current regulator, which is aligned to set in current circuit |
| CN105592605A (en) * | 2014-10-22 | 2016-05-18 | 上海新进半导体制造有限公司 | LED load driving circuit |
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