CN110493927A - A kind of light-operated circuit - Google Patents
A kind of light-operated circuit Download PDFInfo
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- CN110493927A CN110493927A CN201910858713.4A CN201910858713A CN110493927A CN 110493927 A CN110493927 A CN 110493927A CN 201910858713 A CN201910858713 A CN 201910858713A CN 110493927 A CN110493927 A CN 110493927A
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- module
- power input
- light
- resistance
- leakage current
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- 239000003990 capacitor Substances 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000010615 ring circuit Methods 0.000 description 1
Abstract
The present invention relates to field of circuit technology, a kind of particularly light-operated circuit.The invention discloses a kind of light-operated circuits, including power input, prevent flashlight module, drive module and light source module, the power input is used to power to drive module, the drive module is for driving light source module, it is described to prevent flashlight module from connecing between power input and drive module, for releasing from power input inflow from leakage current, so that drive module can not be made to work from leakage current when having the switch from leakage current to close.When the present invention is applied to have from the switch of leakage current, glimmer or flashing light phenomenon after will not turning off the light, and circuit is simple, it is easy to accomplish, it is at low cost, it can be achieved that high-volume volume production.
Description
Technical field
The present invention relates to field of circuit technology, more particularly to a kind of light-operated circuit.
Background technique
Many illuminating products, such as LED light often control its light on and off using the switch having from leakage current, have certainly
When the switch of leakage current refers to switch OFF, there are also leakage current presence, as intelligent switch, the mechanical switch with indicator light,
Two sections of light modulators etc..Due to the presence from leakage current, if larger from leakage current, so that the drive module of illuminating product works, just
It will lead to illuminating product glimmer；If leakage current is smaller, it can charge to the capacitor of the power end of drive module, when charging electricity
When pressure reaches drive module operating voltage, drive module work, illuminating product is bright, and then the power end voltage of drive module drops again
Low that drive module is made not work, illuminating product goes out, and so recycles, causes micro- sudden strain of a muscle, influence consumer experience sense, existing solution party
Method is the influence of leakage current to be considered in actual circuit debugging, but debugging is more troublesome, often debugs bad, low efficiency, cost
It is high.
Summary of the invention
The purpose of the present invention is to provide a kind of light-operated circuits to solve above-mentioned technical problem.
To achieve the above object, the technical solution adopted by the present invention are as follows: a kind of light-operated circuit, including it is power input, anti-
Only flashlight module, drive module and light source module, the power input are used to power to drive module, and the drive module is used
It is described to prevent flashlight module from connecing between power input and drive module in driving light source module, for having from electric leakage
When the switch of stream is closed, release from power input inflow from leakage current, so that drive module can not be made to work from leakage current.
Further, the power input is DC supply input, and the DC supply input connects driving circuit
Input terminal, it is described to prevent flashlight module from connecing between the positive and negative terminal of DC supply input.
Further, described to prevent flashlight module using resistance to realize.
Further, it is described prevent flashlight module include resistance R1 and R2, the resistance R1 and R2 series connection be followed by straight
Between the positive and negative terminal for flowing power input.
Further, the power input is ac power input end, further includes rectification module, the AC power source is defeated
Enter to terminate the input terminal of rectification module, the input terminal of the output termination driving circuit of the rectification module is described to prevent flashing light mould
Block connects between the firewire and zero curve of ac power input end.
Further, described to prevent flashlight module using resistance to realize.
Further, it is described prevent flashlight module include resistance R1 and R2, the resistance R1 and R2 series connection be followed by handing over
Between the firewire and zero curve for flowing power input.
Further, described to prevent flashlight module using capacitor C1 to realize, the both ends of the capacitor CI connect respectively is handing over
Between the firewire and zero curve for flowing power input.
It further, further include protective tube F1, the fuse is serially connected on power input.
Further, the light source module is LED light source module.
Advantageous effects of the invention:
The present invention, which passes through to be equipped with, prevents flashlight module, leakage current when with turning off from the switch of leakage current, in circuit
It is prevented from flashlight module from unloading to bleed off, late-class circuit will not be impacted, would not also cause the glimmer or flashing light of light source module,
And circuit is simple, it is easy to accomplish, it is at low cost, it can be achieved that high-volume volume production.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the circuit structure block diagram of the embodiment of the present invention one.
Fig. 2 is the physical circuit figure of the embodiment of the present invention one；
Fig. 3 is the physical circuit figure of the embodiment of the present invention two；
Fig. 4 is the circuit structure block diagram of the embodiment of the present invention three；
Fig. 5 is the physical circuit figure of the embodiment of the present invention three；
Fig. 6 is the physical circuit figure of other embodiments of the present invention.
Specific embodiment
To further illustrate that each embodiment, the present invention are provided with attached drawing.These attached drawings are that the invention discloses one of content
Point, mainly to illustrate embodiment, and the associated description of specification can be cooperated to explain the operation principles of embodiment.Cooperation ginseng
These contents are examined, those of ordinary skill in the art will be understood that other possible embodiments and advantages of the present invention.In figure
Component be not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Now in conjunction with the drawings and specific embodiments, the present invention is further described.
Embodiment one
As illustrated in fig. 1 and 2, a kind of light-operated circuit, including power input, prevent flashlight module 1, rectification module 5, driving
Module 3 and light source module 4, in this specific embodiment, the power input is ac power input end 2, the rectification circuit 5
For the full bridge rectifier BD1 being made of four diodes, but it is not limited to this, and in other embodiments, rectification circuit 5 can also
To be realized using existing other rectification circuits.
The firewire L and zero curve N of ac power input end 2 are connect with two input terminals of full bridge rectifier BD1 respectively, described
The input terminal of the output termination drive module 3 of full bridge rectifier BD1, the output of the drive module 3 terminate light source module 4,
For driving light source module 4 to work, in this specific embodiment, light source module 4 is LED light source module, and specific structure can refer to
Existing various LED light source modules, this is no longer described in detail, and but it is not limited to this, and in other embodiments, light source module 4 can also be with
It is other light source modules, such as fluorescent tube.
It is described to prevent flashlight module 1 from connecing between ac power input end 2 and drive module 3, for having from electric leakage
When the switch of stream is closed, release from the inflow of ac power input end 2 from leakage current, so that drive module can not be made from leakage current
3 work.
Specifically, preventing flashlight module 1 from connecing between the firewire L and zero curve N of ac power input end 2 in the present embodiment.
In this specific embodiment, flashlight module 1 is prevented using resistance to realize, specifically, including resistance R1 and R2, it is described
Resistance R1 and R2 series connection are followed by between the firewire L and zero curve N of ac power input end 2.It is connected, can be dropped using multiple resistance
The low requirement to resistive performance to reduce cost, and improves safety and reliability.Certainly, in other embodiments, prevent
Flashlight module 1 can also be realized using a resistance or more than two resistance.
The resistance value of resistance R1 and R2 are set according to actual circuit situation, and drive module 3 can not be made by meeting from leakage current
Work, this is that those skilled in the art can realize easily, is no longer described in detail.Certainly, can not make to drive from leakage current in satisfaction
Under the premise of dynamic model block 3 works, resistance R1 and R2 select the larger value as far as possible, when so that working normally, prevent flashlight module 1
Loss is very low, has substantially no effect on circuit efficiency.
Drive module 3 is existing various LED light source drive modules, such as publication: the driving of 109348583 A of CN
Module, particular circuit configurations and function can refer to the prior art, this is no longer described in detail.
It further include protective tube F1 in this specific embodiment, the protective tube F1 is serially connected in the firewire of ac power input end 2
On L, to carry out overcurrent protection, the safety and reliability of circuit is improved.
In use, the firewire L and zero curve N of ac power input end 2 connect the output end with the switch from leakage current, switch
Input terminate alternating current, when the switch is opened, AC power source is inputted by ac power input end 2, through full bridge rectifier
Drive module 3 is given after BD1 rectification, drive module 3 works, and drives light source module 4 to work shinny, at this point, due to resistance R1 and R2
Resistance value is larger, and loss is very low, has substantially no effect on circuit efficiency.
After switch is turned off, firewire L, resistance R1, the resistance R2 for passing through ac power input end 2 from leakage current of switch,
The zero curve N of ac power input end 2 is arrived again, and forming circuit is released, will not be to the capacitor in subsequent circuit (drive module 3)
Charging, drive module 3 do not work, and would not also cause 4 glimmer of light source module or flashing light, and circuit is simple, small in size, are easy to real
It is existing, it is at low cost, it can be achieved that high-volume volume production.
Embodiment two
As shown in figure 3, the difference between this embodiment and the first embodiment lies in: the present embodiment prevents flashlight module 1 using electricity
Hold C1 to realize, the both ends of the capacitor C1 are connect respectively between the firewire L and zero curve N of ac power input end 2.
In this specific embodiment, flashlight module 1 is prevented using a capacitor to realize, certainly, in other embodiments,
It can be realized using multiple capacitors, this is that those skilled in the art can realize easily, is no longer described in detail.
The capacitive reactance of capacitor C1 is set according to actual circuit situation, and meeting from leakage current can not make drive module 3 work
, this is that those skilled in the art can realize easily, is no longer described in detail.Certainly, can not make to drive mould from leakage current in satisfaction
Under the premise of block 3 works, the capacitive reactance of capacitor C1 selects the larger value as far as possible, when so that working normally, prevents the damage of flashlight module 1
Consumption is very low, has substantially no effect on circuit efficiency.
In use, the firewire L and zero curve N of ac power input end 2 connect the output end with the switch from leakage current, switch
Input terminate alternating current, when the switch is opened, AC power source is inputted by ac power input end 2, through full bridge rectifier
Drive module 3 is given after BD1 rectification, drive module 3 works, and drives light source module 4 to work shinny, at this point, due to the appearance of capacitor C1
Resist it is larger, be lost it is very low, have substantially no effect on circuit efficiency.
After switch is turned off, firewire L, the capacitor C1 for passing through ac power input end 2 from leakage current of switch, then arrive exchange
The zero curve N of power input 2, forming circuit are released, and will not be driven to the capacitor charging in subsequent circuit (drive module 3)
Dynamic model block 3 does not work, and would not also cause 4 glimmer of light source module or flashing light, and circuit is simple, small in size, it is easy to accomplish, cost
It is low, it can be achieved that high-volume volume production.
Embodiment three
As shown in Figures 4 and 5, a kind of light-operated circuit, including power input, prevent flashlight module 1, drive module 3 and light
Source module 4, in this specific embodiment, the power input is DC supply input 6.
The anode+and negative terminal-of DC supply input 6 are connect with two input terminals of drive module 3 respectively, the driving mould
The output of block 3 terminates light source module 4, and for driving light source module 4 to work, in this specific embodiment, light source module 4 is LED light
Source module, specific structure can refer to existing various LED light source modules, and but it is not limited to this.
It is described to prevent flashlight module 1 from connecing between DC supply input 6 and drive module 3, for having from electric leakage
When the switch of stream is closed, release from the inflow of DC supply input 6 from leakage current, so that drive module can not be made from leakage current
3 work.
Specifically, preventing flashlight module 1 from connecing between the anode+and negative terminal-of DC supply input 6 in the present embodiment.
In this specific embodiment, flashlight module 1 is prevented using resistance to realize, specifically, including resistance R1 and R2, it is described
Resistance R1 and R2 series connection are followed by between the anode+and negative terminal-of DC supply input 6.It is connected, can be dropped using multiple resistance
The low requirement to resistive performance to reduce cost, and improves safety and reliability.Certainly, in other embodiments, prevent
Flashlight module 1 can also be realized using a resistance or more than two resistance.
The resistance value of resistance R1 and R2 are set according to actual circuit situation, and drive module 3 can not be made by meeting from leakage current
Work, this is that those skilled in the art can realize easily, is no longer described in detail.Certainly, can not make to drive from leakage current in satisfaction
Under the premise of dynamic model block 3 works, resistance R1 and R2 select the larger value as far as possible, when so that working normally, prevent flashlight module 1
Loss is very low, has substantially no effect on circuit efficiency.
Drive module 3 can use existing various LED light source drive modules, such as publication: 109348583 A of CN
Drive module, particular circuit configurations and function can refer to the prior art, this is no longer described in detail.
It further include protective tube F1 in this specific embodiment, the protective tube F1 is serially connected in the anode of DC supply input 6
+ on, to carry out overcurrent protection, improve the safety and reliability of circuit.
In use, the anode of DC supply input 6+and negative terminal-connect the output end with the switch from leakage current, switch
Input terminate direct current, when the switch is opened, DC power supply inputs to drive module 3 by DC supply input 6, drives
Module 3 works, and driving light source module 4 works shinny, at this point, since resistance R1 and R2 resistance value is larger, very low, not shadow substantially is lost
Ring circuit efficiency.
After switch is turned off, switch from leakage current by DC supply input 6 anode+, resistance R1, resistance R2,
The negative terminal-of DC supply input 6 is arrived again, and forming circuit is released, will not be to the capacitor in subsequent circuit (drive module 3)
Charging, drive module 3 do not work, and would not also cause 4 glimmer of light source module or flashing light, and circuit is simple, small in size, are easy to real
It is existing, it is at low cost, it can be achieved that high-volume volume production.
Certainly, in other embodiments, rectification mould can also be increased between DC supply input 6 and drive module 3
Block, such as full bridge rectifier BD1, physical circuit is as shown in fig. 6, this is no longer described in detail, when so that input DC power is positive and negative reversed,
Module can also work normally below.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
It is white, it is not departing from the spirit and scope of the present invention defined by the appended claims, it in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (10)
1. a kind of light-operated circuit, it is characterised in that: including power input, flashlight module, drive module and light source module are prevented,
The power input is used to power to drive module, and the drive module is described to prevent flashing light mould for driving light source module
Block connects between power input and drive module, for releasing from power input when having the switch from leakage current to close
End flow into from leakage current so that drive module can not be made to work from leakage current.
2. light-operated circuit according to claim 1, it is characterised in that: the power input is DC supply input,
The DC supply input connects the input terminal of driving circuit, described to prevent flashlight module from connecing in the positive and negative of DC supply input
Between end.
3. light-operated circuit according to claim 2, it is characterised in that: described to prevent flashlight module using resistance to realize.
4. light-operated circuit according to claim 3, it is characterised in that: it is described that prevent flashlight module include resistance R1 and R2,
The resistance R1 and R2 series connection is followed by between the positive and negative terminal of DC supply input.
5. light-operated circuit according to claim 1, it is characterised in that: the power input is ac power input end,
It further include rectification module, the ac power input end connects the input terminal of rectification module, and the output of the rectification module, which terminates, drives
The input terminal of dynamic circuit, it is described to prevent flashlight module from connecing between the firewire and zero curve of ac power input end.
6. light-operated circuit according to claim 5, it is characterised in that: described to prevent flashlight module using resistance to realize.
7. light-operated circuit according to claim 6, it is characterised in that: it is described that prevent flashlight module include resistance R1 and R2,
The resistance R1 and R2 series connection is followed by between the firewire and zero curve of ac power input end.
8. light-operated circuit according to claim 5, it is characterised in that: described to prevent flashlight module using capacitor C1 come real
Existing, the both ends of the capacitor C1 are connect respectively between the firewire and zero curve of ac power input end.
9. light-operated circuit according to claim 1, it is characterised in that: further include protective tube F1, the fuse is serially connected in
On power input.
10. light-operated circuit according to claim 1, it is characterised in that: the light source module is LED light source module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910858713.4A CN110493927A (en) | 2019-09-11 | 2019-09-11 | A kind of light-operated circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910858713.4A CN110493927A (en) | 2019-09-11 | 2019-09-11 | A kind of light-operated circuit |
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| Publication Number | Publication Date |
|---|---|
| CN110493927A true CN110493927A (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910858713.4A Pending CN110493927A (en) | 2019-09-11 | 2019-09-11 | A kind of light-operated circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113316284A (en) * | 2021-04-14 | 2021-08-27 | 厦门普为光电科技有限公司 | LED lamp with residual light preventing function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010287459A (en) * | 2009-06-12 | 2010-12-24 | Suntec Inc | Led lighting module and lighting device using the same |
| JP2012009350A (en) * | 2010-06-25 | 2012-01-12 | Panasonic Electric Works Co Ltd | Led lighting circuit and luminaire using it |
| CN102413599A (en) * | 2010-09-20 | 2012-04-11 | 海洋王照明科技股份有限公司 | LED (light-emitting diode) constant-current driving circuit and LED lamp |
| CN202425143U (en) * | 2012-01-07 | 2012-09-05 | 中山市山沃照明有限公司 | LED driving circuit and LED lamp |
| CN210536990U (en) * | 2019-09-11 | 2020-05-15 | 厦门阳光恩耐照明有限公司 | Light-operated circuit |
-
2019
- 2019-09-11 CN CN201910858713.4A patent/CN110493927A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010287459A (en) * | 2009-06-12 | 2010-12-24 | Suntec Inc | Led lighting module and lighting device using the same |
| JP2012009350A (en) * | 2010-06-25 | 2012-01-12 | Panasonic Electric Works Co Ltd | Led lighting circuit and luminaire using it |
| CN102413599A (en) * | 2010-09-20 | 2012-04-11 | 海洋王照明科技股份有限公司 | LED (light-emitting diode) constant-current driving circuit and LED lamp |
| CN202425143U (en) * | 2012-01-07 | 2012-09-05 | 中山市山沃照明有限公司 | LED driving circuit and LED lamp |
| CN210536990U (en) * | 2019-09-11 | 2020-05-15 | 厦门阳光恩耐照明有限公司 | Light-operated circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113316284A (en) * | 2021-04-14 | 2021-08-27 | 厦门普为光电科技有限公司 | LED lamp with residual light preventing function |
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