CN110177407A - The illumination controller and lighting device of light-emitting component - Google Patents
The illumination controller and lighting device of light-emitting component Download PDFInfo
- Publication number
- CN110177407A CN110177407A CN201910125377.2A CN201910125377A CN110177407A CN 110177407 A CN110177407 A CN 110177407A CN 201910125377 A CN201910125377 A CN 201910125377A CN 110177407 A CN110177407 A CN 110177407A
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- China
- Prior art keywords
- light
- emitting component
- connect
- illumination controller
- light source
- Prior art date
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Links
- 238000005286 illumination Methods 0.000 title claims abstract description 18
- 230000001939 inductive effect Effects 0.000 claims abstract description 10
- 239000003990 capacitor Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000003760 hair shine Effects 0.000 description 2
- 230000005669 field effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The illumination controller and lighting device of present invention offer light-emitting component.In the illumination controller of light-emitting component, the generation for the dash current that protection element is flowed to when powering on is inhibited.What illumination controller was used to carry out light source lights control, which includes light-emitting component and the protection element that is connected in parallel with the light-emitting component, which includes: inductive element, and one end is connect with the current path for being connected to power supply；Switch element is connected between the other end of inductive element and reference potential end；The capacitive element being connected between the other end of inductive element and reference potential end；And bypass diode, one end are connect with the cathode of the current path and light-emitting component that are connected to power supply, the other end is connect with the anode of capacitive element and light-emitting component.
Description
Technical field
The present invention relates to the technologies controlled for the illuminating state to light-emitting components such as LED.
Background technique
In recent years, the light-emitting components such as LED are widely used in the various lighting devices of lamps apparatus for vehicle etc..In the member that shines
In the control of the illuminating state of part, such as using the voltage raising and reducing circuit comprising DC-DC converter (for example, referring to patent document
1).Also, it is influenced to protect circuit not by overcurrent, also sometimes by protection element (such as Zener diode) and the member that shines
Part is connected in parallel.
However, connecting electricity in the case where controlling using illuminating state of the voltage raising and reducing circuit to light-emitting component
Overcurrent can flow to the protection element being connected in parallel with light-emitting component when source, occasionally result in protection element breakage.The reason is that
When powering on, the capacitor connecting with the outlet side of voltage raising and reducing circuit is not charged charge, therefore is formed and existed from power supply
The current path of capacitor is transmitted and reached in protection element, to generate caused by dash current.
Citation
Patent document 1: Japanese Unexamined Patent Publication 2013-109939 bulletin
Summary of the invention
The first purpose of concrete mode of the invention is that providing can dock in the illumination controller of light-emitting component
The technology that the generation of the dash current of protection element is inhibited is flowed to when energization source.
The illumination controller (a) of one embodiment of the present invention is used to carry out the control of lighting of light source, and the light source includes
Light-emitting component and the protection element being connected in parallel with the light-emitting component, the illumination controller include: (b) inductive element,
One end is connect with the current path for being connected to power supply；(c) switch element, be connected to the other end of the inductive element with
Between reference potential end；(d) capacitive element, be connected to the inductive element the other end and the reference potential end it
Between；And (e) bypass diode, one end and it is connected to the current path of the power supply and the cathode of the light-emitting component
Connection, the other end are connect with the anode of the capacitive element and the light-emitting component.
The lighting device of one embodiment of the present invention includes: above-mentioned illumination controller；And light source, the light source by
The illumination controller is controlled.
In addition, in the present specification, " connection " this concept is in addition to direct comprising a circuit element and other circuit elements
It also include the case where being indirectly connected with by the intervention of other element except the case where connection.
It, can be to flowing to protection element when powering in the illumination controller of light-emitting component according to above structure
The generation of dash current inhibited.
Detailed description of the invention
Fig. 1 is the integrally-built block diagram for showing the lamps apparatus for vehicle of an embodiment.
Fig. 2 is the circuit diagram for showing the detailed construction of starting controlling circuit of an embodiment.
Fig. 3 is the circuit diagram for showing the detailed construction of starting controlling circuit of comparative example.
Label declaration
1: control base board, 2: light source, 3: battery, 14: starting controlling circuit, 21: coil, 22: diode, 23: transistor,
24: capacitor, 25: bypass diode, 31: light-emitting component, 32: Zener diode.
Specific embodiment
Fig. 1 is the integrally-built block diagram for showing the lamps apparatus for vehicle of an embodiment.The lamps apparatus for vehicle of diagram from
Battery 3 receives power supply and carries out light irradiation, and includes control base board 1 and light source 2 and constitute.Battery 3 and control base board 1 it
Between be connected with relay 4.Light source 2 includes 1 or more light-emitting component (such as LED) and constitutes.
Control base board 1 includes input connector 11, reverse-connection protection circuit 12, input filter 13, starting controlling circuit (point
Bright control device) 14 and current detection circuit 15 and constitute.Input connector 11 is for connecting control base board 11 and battery 3
The connector connect.Reverse-connection protection circuit 12 is connected between battery 3 and starting controlling circuit 14, in starting controlling circuit 14 and electricity
When pond 3 is reversely connected, voltage is cut off in order to protect starting controlling circuit 14.Input filter 13 is so that noise ingredient etc. is not defeated
Enter the filter circuit to starting controlling circuit 14.
Starting controlling circuit 14 is used to receive the illuminating state powered and to the light-emitting component for including in light source 2 from battery 3
It is controlled, and includes DC-DC converter etc. and constitute.Current detection circuit 15 is flowed through in the light-emitting component of light source 2
Electric current detected.The certain mode of the size of electric current of the starting controlling circuit 14 to be detected by the current detection circuit 15
It carries out lighting control.
Fig. 2 is the circuit diagram for showing the detailed construction of starting controlling circuit of an embodiment.In addition, in order to simplify
It is bright and the illustration is omitted for current detecting part 15.The starting controlling circuit 14 of diagram includes coil (inductive element) 21, two
Pole pipe 22, transistor 23, capacitor (capacitive element) 24 and bypass are used diode 25 and are constituted.Including at least above-mentioned each portion
Coil 21, transistor 23 and capacitor 24 in part and constitute booster circuit (DC-DC converter).
The one end of coil 21 is connect with the current path for being connected to battery 3, the anode of another side and diode 22 with
And the drain electrode connection of transistor 23.The anode-side of diode 22 is connect with the drain electrode of the other end of coil 21 and transistor 23,
Cathode side is connect with the anode-side of the one end of capacitor 24 and the light-emitting component 31 of light source 2.
The grid of transistor 23 is connect with control unit (not shown), and drain electrode and the centre between coil 21 and diode 22 connect
Contact connection, source electrode are connect with reference potential end (ground terminal).Control signal is provided to grid by control unit.In addition, making herein
Field effect transistor has been used for an example of switch element, but bipolar transistor also can be used.
Intermediate connection point connection between the one end and diode 22 of capacitor 24 and the light-emitting component 31 of light source 2, separately
One end is connect with reference potential end.The one end of bypass diode 25 is connect with the current path for being connected to battery 3, another
End side is connect with the one end of the another side of diode 22 and capacitor 24.
Light source 2 include light-emitting component 31 and the Zener diode (protection element) 32 that is connected in parallel with the light-emitting component 31 and
It constitutes.The anode-side of light-emitting component 31 is connect with starting controlling circuit 14, and cathode side connects with the current path for being connected to battery 3
It connects.
The anode-side of Zener diode 32 is connect with the cathode side of light-emitting component 31, the anode of cathode side and light-emitting component 31
Side connection.In other words, the anode-side of Zener diode 32 is connect with the current path for being connected to battery 3, cathode side with light
Control circuit 14 connects.
The flowing of electric current when powering on to such starting controlling circuit 14, which becomes in figure, shows that with thick dashed line
The flowing of sample.Specifically, the electric current flowed out from the current path connecting with battery 3 reaches electricity by bypass diode 25
Container 24 is filled with charge to capacitor 24.By being filled with charge to capacitor 24, the Zener diode 32 of light source 2 is eliminated
The potential difference at both ends, therefore can prevent overcurrent from flowing through Zener diode 32.
Fig. 3 is the circuit diagram for showing the detailed construction of starting controlling circuit of comparative example.With lighting for above embodiment
Control circuit the difference is that, do not include bypass diode 25.It is connect in the starting controlling circuit 14a to this comparative example
The flowing of electric current when energization source becomes thick dashed line in figure and shows such flowing.Specifically, from the electric current being connect with battery 3
The electric current of path outflow reaches capacitor 24 by the Zener diode 32 of light source 2, is filled with charge to capacitor 24.To electricity
A possibility that in a period of container 24 is filled with before charge, overcurrent can instantaneously flow through Zener diode 32, and breakage etc. occurs is increased.
It can be to stream when powering in the illumination controller of light-emitting component according to above such embodiment
Inhibited to the generation of the dash current of protection element (Zener diode).
In addition, in the range of the purport of the present invention can the present invention is not limited to the content of above-mentioned embodiment
It carries out various modifications and implements.For example, the knot of the booster circuit in the starting controlling circuit shown in the above-described embodiment
Structure only as an example of, it's not limited to that.Also, the light-emitting component that light source is included is also possible to multiple.Also, it is filled as illumination
One set is illustrated lamps apparatus for vehicle, but it's not limited to that for the purposes of lighting device.
Claims (3)
1. a kind of illumination controller, which is characterized in that for carrying out the control of lighting of light source, the light source includes light-emitting component
With the protection element being connected in parallel with the light-emitting component,
The illumination controller includes:
Inductive element, one end are connect with the current path for being connected to power supply；
Switch element is connected between the other end of the inductive element and reference potential end；
Capacitive element is connected between the other end of the inductive element and the reference potential end；And
Bypass diode, one end are connect with the cathode of the current path and the light-emitting component that are connected to the power supply,
The other end is connect with the anode of the capacitive element and the light-emitting component.
2. illumination controller according to claim 1, which is characterized in that
The protection element is Zener diode, which is connect with anode with the cathode of the light-emitting component and cathode
The mode connecting with the anode of the light-emitting component is connected in parallel.
3. a kind of lighting device characterized by comprising
Illumination controller of any of claims 1 or 2；And
Light source, the light source are controlled by the illumination controller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018028523A JP6971878B2 (en) | 2018-02-21 | 2018-02-21 | Light emitting element lighting control circuit |
| JP2018-028523 | 2018-02-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110177407A true CN110177407A (en) | 2019-08-27 |
| CN110177407B CN110177407B (en) | 2024-05-14 |
Family
ID=67689007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910125377.2A Active CN110177407B (en) | 2018-02-21 | 2019-02-20 | Lighting control device for light emitting element and lighting device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6971878B2 (en) |
| CN (1) | CN110177407B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008300209A (en) * | 2007-05-31 | 2008-12-11 | Toshiba Lighting & Technology Corp | Lighting system |
| CN101668372A (en) * | 2008-09-04 | 2010-03-10 | 东芝照明技术株式会社 | Led lighting device and lighting equipment |
| CN102076148A (en) * | 2009-11-09 | 2011-05-25 | 东芝照明技术株式会社 | Led lighting device and illuminating device |
| JP2011108768A (en) * | 2009-11-16 | 2011-06-02 | Shindengen Electric Mfg Co Ltd | Led turn-on device |
| CN102624220A (en) * | 2011-01-28 | 2012-08-01 | 松下电器产业株式会社 | Switching power circuit, and lighting device for semiconductor light-emitting element and illumination apparatus using same |
| JP2012182010A (en) * | 2011-03-01 | 2012-09-20 | Fujitsu Ten Ltd | Illuminating device and display device |
| CN102905419A (en) * | 2011-07-29 | 2013-01-30 | 松下电器产业株式会社 | Lighting device and illumination apparatus using same |
| CN103283310A (en) * | 2011-01-13 | 2013-09-04 | 松下电器产业株式会社 | Light emitting diode lighting circuit, led light source, and lamp |
| US20160358995A1 (en) * | 2012-08-02 | 2016-12-08 | Samsung Display Co., Ltd. | Organic light emitting diode display |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10356608B4 (en) * | 2002-12-03 | 2017-09-28 | Philips Lighting North America Corporation | Lighting arrangement and liquid crystal display |
| US20100188015A1 (en) * | 2009-01-27 | 2010-07-29 | Texas Instruments Incorporation | Method and apparatus for controlling and modulating led current |
| JP6500657B2 (en) * | 2015-07-09 | 2019-04-17 | 三菱電機株式会社 | LED lighting device |
-
2018
- 2018-02-21 JP JP2018028523A patent/JP6971878B2/en active Active
-
2019
- 2019-02-20 CN CN201910125377.2A patent/CN110177407B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008300209A (en) * | 2007-05-31 | 2008-12-11 | Toshiba Lighting & Technology Corp | Lighting system |
| CN101668372A (en) * | 2008-09-04 | 2010-03-10 | 东芝照明技术株式会社 | Led lighting device and lighting equipment |
| CN102076148A (en) * | 2009-11-09 | 2011-05-25 | 东芝照明技术株式会社 | Led lighting device and illuminating device |
| JP2011108768A (en) * | 2009-11-16 | 2011-06-02 | Shindengen Electric Mfg Co Ltd | Led turn-on device |
| CN103283310A (en) * | 2011-01-13 | 2013-09-04 | 松下电器产业株式会社 | Light emitting diode lighting circuit, led light source, and lamp |
| CN102624220A (en) * | 2011-01-28 | 2012-08-01 | 松下电器产业株式会社 | Switching power circuit, and lighting device for semiconductor light-emitting element and illumination apparatus using same |
| JP2012182010A (en) * | 2011-03-01 | 2012-09-20 | Fujitsu Ten Ltd | Illuminating device and display device |
| CN102905419A (en) * | 2011-07-29 | 2013-01-30 | 松下电器产业株式会社 | Lighting device and illumination apparatus using same |
| US20160358995A1 (en) * | 2012-08-02 | 2016-12-08 | Samsung Display Co., Ltd. | Organic light emitting diode display |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019145339A (en) | 2019-08-29 |
| JP6971878B2 (en) | 2021-11-24 |
| CN110177407B (en) | 2024-05-14 |
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