CN204948416U - LED light emission device and drive circuit thereof - Google Patents
LED light emission device and drive circuit thereof Download PDFInfo
- Publication number
- CN204948416U CN204948416U CN201520571095.2U CN201520571095U CN204948416U CN 204948416 U CN204948416 U CN 204948416U CN 201520571095 U CN201520571095 U CN 201520571095U CN 204948416 U CN204948416 U CN 204948416U
- Authority
- CN
- China
- Prior art keywords
- unit
- led drive
- drive circuit
- led
- electromagnetic interference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004146 energy storage Methods 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 7
- 230000033228 biological regulation Effects 0.000 claims description 7
- 239000000084 colloidal system Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000008030 elimination Effects 0.000 abstract description 3
- 238000003379 elimination reaction Methods 0.000 abstract description 3
- 239000003990 capacitor Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 101100489713 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GND1 gene Proteins 0.000 description 1
- 101100489717 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GND2 gene Proteins 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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)
- Led Devices (AREA)
Abstract
The utility model discloses a kind of LED light emission device and drive circuit thereof.This LED drive circuit, comprises rectification unit and LED drive device, this rectification unit and the electrical connection of this LED drive device.This LED drive device comprises: driver module and supplementary module.This driver module comprises LED drive chip and filter unit, this LED drive chip is in parallel with this filter unit, this supplementary module comprises discharge cell and removes electromagnetic interference unit and anti-stroboscopic unit, this discharge cell goes electromagnetic interference unit and this anti-stroboscopic unit to be connected in parallel with this, wherein, this driver module connects the first end of this LED unit, and this supplementary module connects the second end of this LED unit.LED light emission device of the present utility model and LED drive circuit, have elimination electromagnetic interference simultaneously, can not cause uncomfortable beneficial effect to human eye vision without when stroboscopic and closedown.
Description
Technical field
The utility model relates to optical technical field, particularly relates to a kind of LED light emission device and drive circuit thereof.
Background technology
LED light source because having the high and volume lampet advantage of environmental protection, long service life, energy-conservation, stable performance, light efficiency, at present extensive use to various lighting field, as room lighting, automobile, consumption electronic products.
At present, the LED luminaire more employing LED drive chip driving LED lamp work on market.In actual use, usually because of the reason of supply voltage instability, can may burn LED drive chip.Also have the many characteristics due to LED self, during work, very responsive to electromagnetic interference (EMI), during closedown, the residual charge in drive circuit makes again LED gradually extinguish, waste power supply.In addition, existing great power LED has higher luminous efficiency and useful life than daylight lamp fixture, high-power LED driving power source must meet High-current output, existing LED product all have employed less filter capacitor and carries out filtering to the electric current after rectification after rectifying and wave-filtering, because filter capacitor is less, therefore the Envelop waves of 120Hz is still had at rear class electric current output, when LED is lighted, observed by camera, still can find that there is the interference stripes of fast moving, still there is certain injury to the eyes of people in this interference.
Therefore, be necessary to propose a kind of new LED light emission device, solve the problem.
Utility model content
The utility model based on above one or more problem, proposes a kind of LED light emission device and drive circuit thereof just, the problem such as the visual impact that brings of charge residue during in order to solve the electromagnetic interference, the stroboscopic that occur in prior art and to close.
The utility model provides a kind of LED drive circuit, for driving LED cell operation, described LED drive circuit comprises rectification unit and LED drive device, described rectification unit and the electrical connection of described LED drive device, described LED drive device comprises: driver module and supplementary module, described driver module comprises LED drive chip and filter unit, described LED drive chip is in parallel with described filter unit, described supplementary module comprises discharge cell and removes electromagnetic interference unit and anti-stroboscopic unit, described discharge cell and described electromagnetic interference unit and the described anti-stroboscopic unit of going are connected in parallel, wherein, described driver module connects the first end of described LED unit, described supplementary module connects the second end of described LED unit.
Preferably, described go electromagnetic interference unit and described anti-stroboscopic unit respectively correspondence be provided with a switch element, disconnect by controlling switch element described in each respectively or close, described in corresponding control, going electromagnetic interference unit and described anti-stroboscopic unit to be in non operating state or operating state.
Preferably, the described electromagnetic interference unit that goes comprises: one first electric capacity and an energy storage switch, described energy storage switch disconnects when described discharge cell releases the residual electric energy of described LED drive circuit, closed when described LED drive circuit work, described energy storage switch and described first capacitances in series.
Preferably, described anti-stroboscopic unit comprises: one second electric capacity and one second resistance, described second electric capacity is connected with described second resistant series.
Preferably, described discharge cell comprises the resistance unit of two or more series connection.
Preferably, described LED drive circuit also comprises: voltage regulation unit, and described voltage regulation unit regulates AC power to be input to the voltage of described rectification unit.
Preferably, described LED drive chip comprises: the first driver element and the second driver element, and described first driver element comprises: the first Current adjustment end, the first earth terminal, the first free end, the first current output terminal; Described second driver element comprises: the second Current adjustment end, the second earth terminal, the second current output terminal, the second free end, and wherein, described LED drive chip also comprises packing colloid, by described first driver element and described second driver element integral packaging.
The utility model also provides a kind of LED light emission device, comprises LED drive circuit, and wherein, described LED drive circuit is foregoing LED drive circuit.
Preferably, described LED light emission device also comprises: substrate, and described LED drive chip, described discharge cell, described filter unit, described rectification unit are pasted on described substrate surface.
Preferably, described substrate is aluminium base, and described LED drive chip, described discharge cell, described filter unit, described rectification unit paste described aluminium base surface away from described LED unit place by heat-conducting glue.
LED light emission device of the present utility model and drive circuit thereof, have elimination electromagnetic interference simultaneously, can not cause uncomfortable beneficial effect to human eye vision without when stroboscopic and closedown.
Accompanying drawing explanation
Fig. 1 is the structural representation of the LED light emission device of the utility model preferred embodiment.
Fig. 2 is the electrical block diagram of the LED light emission device of preferred embodiment of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.It should be noted that, if do not conflicted, each feature in the utility model embodiment and embodiment can be combined with each other, all within protection range of the present utility model.
Embodiment 1
Refer to Fig. 1, Fig. 1 is the structural representation of the LED light emission device of the utility model preferred embodiment.As shown in Figure 1, the utility model provides a kind of LED drive circuit, work for driving LED unit 40, wherein, described LED drive circuit comprises rectification unit 20 and LED drive device, described rectification unit 20 is electrically connected described LED drive device, described drive unit comprises: driver module 30a and supplementary module 30b, described driver module 30a comprises LED drive chip 31 and filter unit 32, described supplementary module comprises discharge cell 34, remove electromagnetic interference unit 33 and anti-stroboscopic unit 35, described discharge cell 34 and described electromagnetic interference unit 33 and the described anti-stroboscopic unit 35 of going are connected in parallel.Described driver module 30a connects the first end of described LED unit, and described supplementary module 30b connects the second end of described LED unit 40.Wherein, the second end of LED unit 40 connects rectification unit.It should be noted that, LED unit here comprises at least one LED lamp, and these LED can be LED unit in series, also can be in parallel or series-parallel connection formation LED unit.
Preferably, described go electromagnetic interference unit 33 and described anti-stroboscopic unit 35 respectively correspondence be provided with a switch element, disconnect by controlling switch element described in each respectively or close, described in corresponding control, going electromagnetic interference unit and described anti-stroboscopic unit to be in non operating state or operating state.
Preferably, the described electromagnetic interference unit 33 that goes comprises: one first electric capacity and an energy storage switch, described energy storage switch disconnects when described discharge cell releases the residual electric energy of described LED drive circuit, closed when described LED drive circuit work, described energy storage switch and described first capacitances in series.This energy storage switch can be relay, and when LED drive circuit powers on, switch closes, and when LED drive circuit power down, switch disconnects, so that the first electric capacity can store the residual charge in the drive circuit of discharge cell release.
In a specific embodiment, described anti-stroboscopic unit 35 comprises: one second electric capacity and one second resistance, described second electric capacity is connected with described second resistant series, prevents the interference stripes that LED light source occurs, damages human eye.
Further, described discharge cell 34 comprises the resistance unit of two or more series connection.
Further, described LED drive circuit also comprises: voltage regulation unit 10, and described voltage regulation unit 10 regulates AC power to be input to the voltage of described rectification unit.This voltage regulation unit 10 comprises circuit for detecting, micro-control unit, voltage reduction module and boost module.The voltage swing of the AC power that this micro-control unit detects according to circuit for detecting, judge whether to need to carry out step-down still to boost process, to ensure that LED drive circuit is operated in a comparatively suitable voltage range, prevent overtension to the infringement of device, prevent again brownout from affecting the illuminating effect of LED unit simultaneously, extend the useful life of LED light emission device.
Refer to Fig. 2, Fig. 2 is the electrical block diagram of the LED light emission device of preferred embodiment of the present utility model.As shown in Figure 2, in this LED light emission device, from the two ends L of AC power, the interchange of the L end input in N is after a decompression capacitor Rcc, rectification unit DB1 is flowed into through circuit protection unit FUSE, one end of rectification unit is connected to the N end of AC power, circuit protection unit FUSE and AC power N hold and are provided with the variable resistor RV1 in parallel with rectification unit DB1, electric current one road that rectification unit DB1 exports flows into and removes electromagnetic interference unit 330, here, electromagnetic interference unit 330 is gone to be an electric capacity C4, certainly can also be adopt other common electronic devices and components or circuit to form electromagnetic interference unit, these are all in protection range of the present utility model, do not repeat them here.Another road of electric current that rectification unit DB1 exports flows into anti-stroboscopic unit 350, and here anti-stroboscopic unit 350 is the series circuit that electric capacity C3 and resistance R5 form, and certainly can also adopt the circuit of other anti-stroboscopic.Another road of electric current that rectification unit DB1 exports flows into LED unit LED1 ... LEDn, ground connection after driver module.Here driver module comprises LED drive chip U1, and the electric capacity C1 as filter unit in parallel with LED drive chip U1.Discharge cell one end connects LED unit, and the other end connects LED drive chip.In Fig. 2, discharge cell comprises resistance R3 and the resistance R4 of series connection.
Further, this LED drive chip comprises: the first driver element and the second driver element, described first driver element comprises: the first Current adjustment end 2 (REXT1), first earth terminal 1 (GND1), first free end 8 (NC), the first current output terminal 7 (OUT1); This second driver element comprises: the second Current adjustment end 4 (REXT2), second earth terminal 3 (GND2), second current output terminal 5 (OUT2), second free end 6 (NC), wherein, this LED drive chip 100 also comprises packing colloid, by this first driver element and this second driver element integral packaging.This first driver element and this second driver element can be the driver element of a standalone feature, the separately electric current of all adjustable LED separately.First driver element and the second driver element are encapsulated in same packing colloid, a power input can be shared, simplify circuit structure, saved the space that chip takies simultaneously, reduced production cost.In addition, this the first Current adjustment end 2 is connected with the first end of this first LED unit by the first resistance unit R1, this the second Current adjustment end 4 is connected with the first end of this first LED unit by the second resistance unit R2, and this first resistance unit R1 is different from the resistance value of this second resistance unit R2.
Embodiment 2
Based on the LED drive circuit of above-described embodiment 1, the utility model also provides a kind of LED light emission device, comprises LED drive circuit, and wherein, described LED drive circuit is the LED drive circuit described in embodiment 1.
Further, described LED light emission device also comprises: substrate, and described LED drive chip, described discharge cell, described filter unit, described rectification unit are pasted on described substrate surface.
Preferably, described substrate is aluminium base, and described LED drive chip, described discharge cell, described filter unit, described rectification unit paste described aluminium base surface away from described LED unit place by heat-conducting glue.Because aluminium base has good heat conductivility, therefore, good heat dissipation effect, is located at the position away from LED unit simultaneously, prevents heat trnasfer from impacting LED unit luminescence by described LED drive chip, described discharge cell, described filter unit, described rectification unit.
LED light emission device of the present utility model, owing to comprising the LED drive circuit in embodiment 1, has elimination electromagnetic interference simultaneously, can not cause uncomfortable beneficial effect to human eye vision without when stroboscopic and closedown.
The foregoing is only execution mode of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a LED drive circuit, for driving LED cell operation, it is characterized in that, described LED drive circuit comprises rectification unit and LED drive device, described rectification unit and the electrical connection of described LED drive device, described LED drive device comprises: driver module and supplementary module, described driver module comprises LED drive chip and filter unit, described LED drive chip is in parallel with described filter unit, described supplementary module comprises discharge cell and removes electromagnetic interference unit and anti-stroboscopic unit, described discharge cell and described electromagnetic interference unit and the described anti-stroboscopic unit of going are connected in parallel, wherein, described driver module connects the first end of described LED unit, described supplementary module connects the second end of described LED unit.
2. LED drive circuit as claimed in claim 1, it is characterized in that, described go electromagnetic interference unit and described anti-stroboscopic unit respectively correspondence be provided with a switch element, disconnect by controlling switch element described in each respectively or close, described in corresponding control, going electromagnetic interference unit and described anti-stroboscopic unit to be in non operating state or operating state.
3. LED drive circuit as claimed in claim 2, it is characterized in that, the described electromagnetic interference unit that goes comprises: one first electric capacity and an energy storage switch, described energy storage switch disconnects when described discharge cell releases the residual electric energy of described LED drive circuit, closed when described LED drive circuit work, described energy storage switch and described first capacitances in series.
4. LED drive circuit as claimed in claim 2, it is characterized in that, described anti-stroboscopic unit comprises: one second electric capacity and one second resistance, described second electric capacity is connected with described second resistant series.
5. LED drive circuit as claimed in claim 3, it is characterized in that, described discharge cell comprises the resistance unit of two or more series connection.
6. LED drive circuit as claimed in claim 1, it is characterized in that, described LED drive circuit also comprises: voltage regulation unit, and described voltage regulation unit regulates AC power to be input to the voltage of described rectification unit.
7. LED drive circuit as claimed in claim 1, it is characterized in that, described LED drive chip comprises: the first driver element and the second driver element, described first driver element comprises: the first Current adjustment end, first earth terminal, the first free end, the first current output terminal; Described second driver element comprises: the second Current adjustment end, the second earth terminal, the second current output terminal, the second free end, and wherein, described LED drive chip also comprises packing colloid, by described first driver element and described second driver element integral packaging.
8. a LED light emission device, comprises LED drive circuit, it is characterized in that, described LED drive circuit is the LED drive circuit described in any one of claim 1 to 7.
9. LED light emission device as claimed in claim 8, it is characterized in that, described LED light emission device also comprises: substrate, and described LED drive chip, described discharge cell, described filter unit, described rectification unit are pasted on described substrate surface.
10. LED light emission device as claimed in claim 9, it is characterized in that, described substrate is aluminium base, and described LED drive chip, described discharge cell, described filter unit, described rectification unit paste described aluminium base surface away from described LED unit place by heat-conducting glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520571095.2U CN204948416U (en) | 2015-07-31 | 2015-07-31 | LED light emission device and drive circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520571095.2U CN204948416U (en) | 2015-07-31 | 2015-07-31 | LED light emission device and drive circuit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204948416U true CN204948416U (en) | 2016-01-06 |
Family
ID=55015800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520571095.2U Active CN204948416U (en) | 2015-07-31 | 2015-07-31 | LED light emission device and drive circuit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204948416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107124785A (en) * | 2016-12-02 | 2017-09-01 | 深圳市长运通光电技术有限公司 | LED linear power supply dynamics compensation circuits, drive circuit and photoelectricity module |
-
2015
- 2015-07-31 CN CN201520571095.2U patent/CN204948416U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107124785A (en) * | 2016-12-02 | 2017-09-01 | 深圳市长运通光电技术有限公司 | LED linear power supply dynamics compensation circuits, drive circuit and photoelectricity module |
| CN107124785B (en) * | 2016-12-02 | 2019-07-26 | 深圳市长运通半导体技术有限公司 | LED linear power supply dynamics compensation circuits, driving circuit and photoelectricity mould group |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201898450U (en) | Power converter and light-emitting diode (LED) lamp | |
| CN206743614U (en) | A kind of easily toning light modulation and LED and its drive circuit without stroboscopic | |
| CN201127137Y (en) | High-power LED drive circuit | |
| CN104244520A (en) | LED street lamp driver capable of achieving chilling plate radiating and timing automatic dimming | |
| CN203608412U (en) | An LED lamp driving power supply employing optical coupler feedback control | |
| CN202077247U (en) | Illumination drive power supply for Light-emitting diode (LED) streetlamp | |
| CN201414242Y (en) | Constant current device using commercial power to directly drive LED lamp | |
| CN204948416U (en) | LED light emission device and drive circuit thereof | |
| CN104837276B (en) | The LED wireless control systems and control method of a kind of compatible phase-cut dimming | |
| CN201657438U (en) | Adjustable optical drive circuit compatible to silicon controlled light modulator | |
| CN206817338U (en) | Universal adaptive error correction LED license plate lamps | |
| CN107529713B (en) | Universal LED lamp tube and module thereof | |
| CN203387719U (en) | LED driver used for illumination | |
| CN204906792U (en) | LED illuminator and drive circuit thereof | |
| CN203951640U (en) | A kind of light emitting diode drive device | |
| CN202769506U (en) | Intelligent and multi-functional light-emitting diode (LED) string lights | |
| CN204948418U (en) | LED light emission device and drive circuit thereof | |
| CN204948417U (en) | LED light emission device and drive circuit thereof | |
| CN203176775U (en) | Alternating current led bulb | |
| CN202949618U (en) | Electronic ballast with adjustable brightness | |
| CN206596266U (en) | Light-emittingdiode circuit | |
| CN201561307U (en) | LED lighting lamp | |
| CN204350406U (en) | A kind of isolation drive power supply of LED illumination lamp | |
| CN204291482U (en) | A kind of great power LED is without stroboscopic driving power | |
| CN204707313U (en) | A kind of LED protection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170123 Address after: 518000 Guangdong City, Nanshan District province high tech in the middle of the two road, No. 2 Shenzhen International Software Park, room 201-205, room, 4 (only office) (222-226) Patentee after: Shenzhen CYT Optoelectronic Technology Co.,Ltd. Address before: 518000 Guangdong, Shenzhen, Nanshan District science and technology in the road, Shenzhen, 4 Software Park, building 2, building two Patentee before: Gu Daoxiong |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangdong City, Nanshan District province high tech in the middle of the two road, No. 2 Shenzhen International Software Park, room 201-205, room, 4 (only office) (222-226) Patentee after: Shenzhen mayor express Semiconductor Technology Co., Ltd. Address before: 518000 Guangdong City, Nanshan District province high tech in the middle of the two road, No. 2 Shenzhen International Software Park, room 201-205, room, 4 (only office) (222-226) Patentee before: Shenzhen CYT Optoelectronic Technology Co.,Ltd. |