CN104932595B - Multi-channel controllable circuit for providing self-adaptive common voltage and method for providing self-adaptive common voltage - Google Patents
Multi-channel controllable circuit for providing self-adaptive common voltage and method for providing self-adaptive common voltage Download PDFInfo
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- CN104932595B CN104932595B CN201510357217.2A CN201510357217A CN104932595B CN 104932595 B CN104932595 B CN 104932595B CN 201510357217 A CN201510357217 A CN 201510357217A CN 104932595 B CN104932595 B CN 104932595B
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Abstract
The invention provides a multi-channel controllable circuit for providing a self-adaptive common voltage and a method for providing the self-adaptive common voltage. The circuit mainly comprises a power source module, a control module and multiple branch modules. The control module is provided with a power source module control port and multiple feedback ports and is connected with the power source module through the power source module control port so as to control the common voltage output by the power source module. Each branch module is connected with the corresponding feedback port. The control module controls the value of the common voltage output by the power source module through the power source module control port according to feedback voltages obtained by the feedback ports. The feedback voltages are input into an amplifying unit and compared with a reference voltage of the in-phase input end of the amplifying unit, in this way, the output voltage of the amplifying unit is automatically adjusted, automatic adjustment of the common voltage is achieved, and work efficiency is improved.
Description
Technical field
The present invention relates to the control circuit technical field of common electric voltage, more particularly to a kind of offer self adaptation common electric voltage
Multichannel controlable electric current and method.
Background technology
In the prior art, it is single respectively as shown in figure 1, the control module 02 in common electric voltage system is according to external setting-up
To control per road load 03 electric current size and power supply 01 work, in order to allow it is all load 03 can normal work, power supply
01 common electric voltage for providing is fixed, and general value is higher, and this architectural configurations are simple, implement and are also easy to.
But, when loading 03 required voltage and being relatively low, extra voltage landing causes energy on current sink 04, thus
Waste, be lost under the conditions of some very serious.
The content of the invention
In view of the above problems, the application describes a kind of multichannel controllable current circuit of self adaptation common electric voltage, including：
Power module；
Control module, with power module control port and some feedback ports, and the control module passes through the electricity
Source module control port is connected with the power module, to control the common electric voltage of the power module output；
Some branch road modules, each described branch road module is respectively connected with a feedback port；And
The feedback voltage that the control module is obtained according to the feedback port is by the power module control port control
Make the common electric voltage value of the power module output.
Preferably, the control module also have some branch road control ports, and each described branch road module with an institute
State the connection of branch road control port；And
The feedback voltage that control module feedback port according to from is obtained, by branch road control port described in
Control the branch road module corresponding with the feedback port is turned on and off action.
Preferably, each described branch road module includes branch road control module and load, and the branch road control module is logical
Cross the power output end for loading and being connected to the power module；And
In arbitrary branch road module, the branch road control module is connected with the branch road control port, the feedback end
Mouth is connected respectively with the branch road control module and the load.
Preferably, the branch road control module is current sink.
Preferably, the control module also includes an amplifying unit, the inverting input of the amplifying unit is anti-with described
The connection of feedback port, receives the feedback voltage, and the in-phase input end of the amplifying unit accesses a reference voltage.
Preferably, high gain voltage amplifier of the amplifying unit for multi input.
Present invention also offers a kind of method that self adaptation common electric voltage is provided, including step：
S1：Control module sends control signal by power module control port according to external setting-up to power module；
S2：The power module receives the control signal, and to all branch road modules common electric voltage is provided；
S3：The control module receives the feedback voltage of all branch road modules by feedback port, determines whether
Branch road module has that voltage is inadequate, if it has, improving the common electric voltage value.
Preferably, step S3 includes：
S31：The control module receives the feedback voltage；
S32：The feedback voltage is input into into the inverting input of amplifying unit, while to the homophase of the amplifying unit
Input input reference voltage, if the feedback voltage of any one branch road is less than the reference voltage, the amplifying unit is defeated
Go out to strengthen signal；
S33：The power module receives the enhancing signal, improves the common electric voltage value.
Preferably, after step s 3, also including step S4：The control module is by all of feedback voltage and institute
State common electric voltage to be contrasted, determine whether that branch road has failure, if it has, processing the failure, otherwise, perform S31.
Preferably, step S4 includes step：
S41：The control module is contrasted all of feedback voltage and the common electric voltage, is determined whether
There is failure in the branch road module, if it has, performing S42, otherwise, perform S31；
S42：It is to be in open-circuit condition in short circuit that judgement has the branch road module of failure, if in short
Line state, performs S43, otherwise, performs S44；
S43：The control module to the branch road control module input first in the branch road module of short-circuit condition is controlled
Signal processed, closes the branch road module, recovers the power supply of the branch road module automatically after short trouble is released；
S44：The control module is to the branch road control module input second in the branch road module of open-circuit condition
Control signal, closes the branch road module, and closes the feedback voltage of the branch road module, and after open fault is released the control is restarted
Molding block.
Above-mentioned technical proposal has the advantage that or beneficial effect：Feedback voltage is accessed into amplifying unit and and amplifying unit
The reference voltage of in-phase input end is compared, and so as to automatically adjust the output voltage of amplifying unit, realizes common electric voltage
Automatically adjust so that the minimum voltage that common electric voltage can be needed for normal work for all branch roads, relative to fixed voltage
Traditional framework, improves efficiency.
Description of the drawings
With reference to appended accompanying drawing, more fully to describe embodiments of the invention.However, appended accompanying drawing be merely to illustrate and
Illustrate, and be not meant to limit the scope of the invention.
Fig. 1 is the system structure diagram that common electric voltage is provided in prior art；
Fig. 2 is a kind of flow chart one of the method for providing self adaptation common electric voltage of the present invention；
Fig. 3 is a kind of flowchart 2 of the method for providing self adaptation common electric voltage of the present invention；
Fig. 4 is a kind of flow chart 3 of the method for providing self adaptation common electric voltage of the present invention；
Fig. 5 is that state diagram one is shown in a kind of use of the multichannel controllable current circuit of self adaptation common electric voltage of the invention；
Fig. 6 is that state diagram two is shown in a kind of use of the multichannel controllable current circuit of self adaptation common electric voltage of the invention.
Specific embodiment
Below in conjunction with the accompanying drawings with specific embodiment to a kind of method and its device for providing self adaptation common electric voltage of the invention
It is described in detail.
Embodiment one
The present invention proposes a kind of method of offer self adaptation common electric voltage, including step：
S1：Control module 2 sends control signal according to external setting-up to power module 1；
S2：The power module 1 receives the control signal, and to branch road module 3 common electric voltage is provided；
S3：Detection module receives the feedback voltage of all branch road modules 3, determines whether that branch road module 3 has voltage not
Enough problems, if it has, improving the common electric voltage.
Wherein, step S3 includes：
S31：Detection module receives the feedback voltage of all branch road modules 3；
S32：The feedback voltage of all branch road modules 3 is input into into the inverting input of amplifying unit 21, a reference voltage is equal
The in-phase input end of input amplifying unit 21, if there is the feedback voltage of one or several branch road modules 3 base is less than
Quasi- voltage, then one relatively high value of the output of the amplifying unit 21, i.e. output strengthens signal.
S33, the power module 1 receives the enhancing signal, improves the common electric voltage.
Wherein, a kind of method for providing self adaptation common electric voltage, also includes after step s 3 step：
S4：The control module 2 is contrasted the feedback voltage of all branch road modules 3 and the common electric voltage, is sentenced
It is disconnected whether to have branch road module 3 to there is failure, if it has, handling failure, otherwise, performs S3.
Step S4 is specifically included：
S41：The control module 2 is contrasted the feedback voltage of all branch road modules 3 and the common electric voltage, is sentenced
It is disconnected whether to have branch road module 3 to there is failure, if it has, performing S42, otherwise, perform S31；
S42：It is short circuit or open circuit that judgement has the branch road module 3 of failure, if short-circuit, performs S43, otherwise, is held
Row S44；
S43：Short-circuit shape body is in if there is the branch road module 3 of failure, the control module 2 is to the branch road for short circuit occur
Module 3 is input into the first control signal, closes the branch road module 3, and recovers the branch road module 3 automatically after short trouble is released
Power supply；
S44：The control module 2 to the branch road module 3 for open circuit occur is input into the second control signal, closes the branch road module
3, and the feedback voltage of the branch road module 3 is closed, restart whole control module 2 after open fault contact.
Embodiment two
A kind of method of the offer self adaptation common electric voltage proposed according to above-described embodiment, the present embodiment proposes one kind certainly
Adapt to the multichannel controllable current circuit of common electric voltage.
A kind of multichannel controllable current circuit of self adaptation common electric voltage, including：
Power module 1, for providing voltage to branch road module 3；
Control module 2, with power module control port and some feedback ports, and the control module 2 is by described
Power module control port is connected with the power module 1, to control the power module 1, and branch road module 3 is examined
Survey；
Some branch road modules 3, each described branch road module 3 is respectively connected with a feedback port, the branch road
Module 3 sends feedback voltage by the feedback port to the control module 2.
Wherein, the control module 2 controls the electricity according to the feedback voltage by the power module control port
The common electric voltage value of the output of source module 1.The control module 2 also has some branch road control ports, and each described branch road mould
Block 3 is connected with branch road control port described in, the feedback electricity that the feedback port according to from of the control module 2 is obtained
Pressure, by branch road control port described in control corresponding with the feedback port branch road module 3 be turned on and off move
Make.
Each described branch road module 3 includes branch road control module 32 and load 31, and the branch road control module 32
The power output end of the power module 1 is connected to by the load 31.In any one branch road module 3, the branch road
Control module 32 is connected with the branch road control port, the feedback port respectively with the branch road control module 32 and described negative
Carry 31 to connect.The branch road control module 32 can be current sink.
The control module 2 is contrasted the feedback voltage of all branch road modules 3 and the common electric voltage, is judged whether
There is branch road module 3 to there is failure.When short circuit occurs in a certain branch road module 3, the control module 2 is in the branch road module 3
Branch road control module 32 is input into the first control signal by the branch road control port, closes the branch road module 3, until short circuit event
Barrier recovers the power supply of the branch road automatically after automatically terminating；When opening a way occurs in a certain branch road, the control module 2 is to the branch road mould
Branch road control module 32 in block 3 is input into the second control signal by the branch road control port, and closes the branch road module 3
Feedback voltage, open circuit restarts the control module 2 after releasing.
Wherein described control module 2 includes an amplifying unit 21, and the inverting input of the amplifying unit 21 accesses each
The feedback voltage of the output of branch road module 3, the in-phase input end of the amplifying unit 21 accesses a reference voltage.When any one branch road
The feedback voltage of module 3 is less than the reference voltage, and the common port of the amplifying unit 21 exports a relatively high value, that is, exports
Strengthen signal.The enhancing signal is input into the power module 1 by the power module control port, is improved described public
Voltage.I.e. when the voltage of a certain branch road module 3 is inadequate, the feedback voltage of the branch road module 3 will be low, when the feedback voltage
During less than the reference voltage, the amplifying unit 21 can export a larger voltage, that is, strengthen signal, the power module 1
According to the enhancing signal, the common electric voltage is improved, so that all branch road modules 3 can be operated in the state of needs.
Wherein described amplifying unit 21 is the high gain voltage amplifier 22 of a multi input.
In the application by the feedback voltage of all branch roads access amplifying unit 21 and with the in-phase input end of amplifying unit 21
Reference voltage is compared, and so as to automatically adjust the output voltage of amplifying unit 21, realizes automatically adjusting for common electric voltage, makes
Common electric voltage can be needed for normal work for all branch roads minimum voltage, relative to traditional framework of fixed voltage, carry
High efficiency.
For a person skilled in the art, read after described above, various changes and modifications undoubtedly will be evident that.
Therefore, appending claims should regard the whole variations and modifications for covering the true intention and scope of the present invention as.In power
Any and all scope of equal value and content, are all considered as still belonging to the intent and scope of the invention in the range of sharp claim.
Claims (7)
1. the multichannel controllable current circuit of a kind of self adaptation common electric voltage, it is characterised in that include：
Power module；
Control module, with power module control port and some feedback ports, and the control module passes through the power supply mould
Block control port is connected with the power module, to control the common electric voltage of the power module output；
Some branch road modules, each described branch road module is respectively connected with a feedback port；And
The control module controls institute according to the feedback voltage that the feedback port is obtained by the power module control port
State the common electric voltage value of power module output；
Wherein, the control module also have some branch road control ports, and each described branch road module with branch road described in
Control port connects；And
The feedback voltage that control module feedback port according to from is obtained, is controlled by branch road control port described in
Corresponding with the feedback port branch road module is turned on and off action；
Wherein, each described branch road module includes branch road control module, and the branch road control module is current sink.
2. the multichannel controllable current circuit of self adaptation common electric voltage according to claim 1, it is characterised in that described in each
Branch road module also includes load, and the branch road control module loads the power supply output for being connected to the power module by described
End；And
In arbitrary branch road module, the branch road control module is connected with the branch road control port, the feedback port point
It is not connected with the branch road control module and the load.
3. the multichannel controllable current circuit of self adaptation common electric voltage according to claim 1, it is characterised in that the control
Module also includes an amplifying unit, and the inverting input of the amplifying unit is connected with the feedback port, receives the feedback
Voltage, the in-phase input end of the amplifying unit accesses a reference voltage.
4. the multichannel controllable current circuit of self adaptation common electric voltage according to claim 3, it is characterised in that the amplification
Unit is the high gain voltage amplifier of multi input.
5. it is a kind of provide self adaptation common electric voltage method, it is characterised in that including step：
S1：Control module sends control signal by power module control port according to external setting-up to power module；
S2：The power module receives the control signal, and to all branch road modules common electric voltage is provided；
S3：The control module receives the feedback voltage of all branch road modules by feedback port, determines whether branch road
Module has that voltage is inadequate, if it has, improving the common electric voltage value；
S4：The control module is contrasted all of feedback voltage and the common electric voltage, determines whether branch road
There is failure, if it has, processing the failure.
6. it is according to claim 5 provide self adaptation common electric voltage method, it is characterised in that in step S4,
If Jing judges there is failure without branch road, following steps are performed：
S31：The control module receives the feedback voltage；
S32：The feedback voltage is input into into the inverting input of amplifying unit, while to the homophase input of the amplifying unit
End input reference voltage, if the feedback voltage of any one branch road is less than the reference voltage, the amplifying unit output increases
Strong signal；
S33：The power module receives the enhancing signal, improves the common electric voltage value.
7. it is according to claim 6 provide self adaptation common electric voltage method, it is characterised in that step S4 include step：
S41：The control module is contrasted all of feedback voltage and the common electric voltage, is determined whether described
There is failure in branch road module, if it has, performing S42, otherwise, perform S31；
S42：It is to be in open-circuit condition in short circuit that judgement has the branch road module of failure, if in short-circuit shape
State, performs S43, otherwise, performs S44；
S43：The control module to the branch road control module input first in the branch road module of short-circuit condition is controlled
Signal, closes the branch road module, recovers the power supply of the branch road module automatically after short trouble is released；
S44：The control module to the branch road control module input second in the branch road module of open-circuit condition is controlled
Signal, closes the branch road module, and closes the feedback voltage of the branch road module, and after open fault is released the control mould is restarted
Block.
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| CN204719580U (en) * | 2015-06-24 | 2015-10-21 | 上海芯导电子科技有限公司 | A kind of multichannel controlable electric current that self-adaptation common electric voltage is provided |
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| CN101847025B (en) * | 2009-03-23 | 2013-11-06 | 尼克森微电子股份有限公司 | Adaptive constant voltage control circuit and adaptive power conversion controller |
| US20110089858A1 (en) * | 2009-10-16 | 2011-04-21 | Green Solution Technology Co., Ltd. | Load driving circuit and multi-load feedback circuit |
| CN202634795U (en) * | 2012-05-10 | 2012-12-26 | 湖北云川光电科技有限公司 | Multi-module LED street lamp intelligent constant current system |
| CN103488218B (en) * | 2012-06-14 | 2015-06-17 | 登丰微电子股份有限公司 | Multi-channel constant-voltage and constant-current switching control circuit and multi-channel constant-voltage and constant-current switching control device |
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| CN204719580U (en) * | 2015-06-24 | 2015-10-21 | 上海芯导电子科技有限公司 | A kind of multichannel controlable electric current that self-adaptation common electric voltage is provided |
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Address after: Zuchongzhi road in Pudong New Area Zhangjiang hi tech park Shanghai 201203 Lane 2277 Building No. 7 Patentee after: Shanghai Xindao Electronic Technology Co., Ltd Address before: Zuchongzhi road in Pudong New Area Zhangjiang hi tech park Shanghai 201203 Lane 2277 Building No. 7 Patentee before: SHANGHAI PRISEMI ELECTRONIC TECHNOLOGY Co.,Ltd. |