CN206164931U - LED no stroboscopic circuit drive module that throws light on - Google Patents
LED no stroboscopic circuit drive module that throws light on Download PDFInfo
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- CN206164931U CN206164931U CN201621254717.XU CN201621254717U CN206164931U CN 206164931 U CN206164931 U CN 206164931U CN 201621254717 U CN201621254717 U CN 201621254717U CN 206164931 U CN206164931 U CN 206164931U
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- led
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- polar capacitor
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- 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]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model relates to a LED lighting technology field especially relates to a LED no stroboscopic circuit drive module that throws light on. This LED no stroboscopic circuit drive module that throws light on adopts the no stroboscopic drive circuit of single -stage power factor control of external MOS pipe design, can convert ripple current to ripple voltage, eliminates the influence of fluctuation of current to the luminance of LED lamp pearl. Simultaneously, protection circuits such as its internal integration excessive pressure, short circuit, it is efficient, satisfy various high power factor's LED lighting circuit's no stroboscopic designing requirement completely, can wide application in medium - and high -end LED lighting products, especially outer pin LED lighting products, market LED lighting products such as hospital, school, meeting room.
Description
Technical field
The utility model is related to technical field of LED illumination, more particularly to a kind of LED illumination without stroboscopic circuit drives module.
Background technology
At present LED illumination circuit develops to power control direction, can optimize transmission line of electricity, increases the use of circuit
Life-span, but high PF can bring the stroboscopic problem of circuit, the eye damage to human body.Current country's LED illumination product is basic
High-power factor circuit is absorbed in without importing without stroboscopic design, it is unfavorable to human eye health.
Utility model content
In view of drawbacks described above present in prior art, technical problem to be solved in the utility model is to provide one kind
LED illumination is not imported without stroboscopic design, to people without stroboscopic circuit drives module with the LED illumination product for solving prior art
The unfavorable problem of eye health.The utility model is achieved by the following technical solution：
A kind of LED illumination is without stroboscopic circuit drives module, including driving chip and peripheral circuit；
The peripheral circuit include the first polar capacitor, the second polar capacitor, the 3rd polar capacitor, first resistor, second
Resistance, 3rd resistor and metal-oxide-semiconductor, each resistance has two ends；
The driving chip includes 6 pins, is respectively that power input pin, power ground pin, LED ripple current set
Put pin, external metal-oxide-semiconductor raster data model pin, LED operation current sample pin, LED pressure limitings and short-circuit protection pin；
The power input pin is connected with the first end of the first resistor, the second end of the first resistor be used for
The positive pole connection of power supply；
The power ground pin ground connection；
The LED ripple current arranges pin and is connected with the positive pole of first polar capacitor, first polar capacitor
Minus earth；
The external metal-oxide-semiconductor raster data model pin is connected with the grid of the metal-oxide-semiconductor, for driving the grid of the metal-oxide-semiconductor
Pole；The source electrode of the metal-oxide-semiconductor is connected with the first end of second resistance, the second end ground connection of the second resistance；The metal-oxide-semiconductor
Drain electrode is connected with the first end of the 3rd resistor；
The LED operation current sample pin is connected with the source electrode of the metal-oxide-semiconductor；
The LED pressure limitings and short-circuit protection pin are connected with the second end of the 3rd resistor；
The positive pole of second polar capacitor is connected with the first end of the first resistor, second polar capacitor it is negative
Pole is grounded；
The positive pole of the 3rd polar capacitor is used to be connected with the positive pole of the power supply, the negative pole of the 3rd type electric capacity
Ground connection；
The minus earth of the power supply.
Further, the driving chip is encapsulated using SOT23-6.
Further, the metal-oxide-semiconductor is N-channel MOS pipe.
Further, the first resistor, second resistance and second resistance are Chip-R；First polar capacitor,
Second polar capacitor, the 3rd polar capacitor are patch capacitor.
Compared with prior art, the LED illumination that the utility model is provided adopts external metal-oxide-semiconductor without stroboscopic circuit drives module
The single stage power factor controlling of design can be converted into ripple voltage without stroboscopic drive circuit ripple current, eliminate current fluctuation
Impact to LED lamp bead brightness.Meanwhile, it is internally integrated the protection circuits such as overvoltage, short circuit, and efficiency high fully meets various height
The LED illumination circuit of power factor (PF) without stroboscopic design requirement, can be widely applied to middle and high end LED illumination product, particularly
The market such as export trade LED illumination product, hospital, school, meeting room LED illumination product.
Description of the drawings
Fig. 1：Circuit theory schematic diagram of the LED illumination without stroboscopic circuit drives module that the utility model embodiment is provided.
Specific embodiment
Below in conjunction with accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clearly
Chu, it is fully described by.Obviously, described embodiment is only a part of embodiment of the utility model, rather than the reality of whole
Apply example.The component of the utility model embodiment generally described and illustrated in accompanying drawing herein can be come with a variety of configurations
Arrangement and design.Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit
Claimed scope of the present utility model, but it is merely representative of selected embodiment of the present utility model.Based on the utility model
Embodiment, the every other embodiment that those skilled in the art are obtained on the premise of creative work is not made, all
Belong to the scope of the utility model protection.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " connection "
Should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can be that machinery connects
Connect, or electrically connect；Can be directly connected to, it is also possible to be indirectly connected with by intermediary, or two elements
Internal connection.For the ordinary skill in the art, can as the case may be understand above-mentioned term in this practicality
Concrete meaning in new.
As shown in figure 1, the LED illumination that the utility model embodiment is provided includes driving chip without stroboscopic circuit drives module
And peripheral circuit.
Peripheral circuit include the first polar capacitor 10, the second polar capacitor 11, the 3rd polar capacitor 12, first resistor 7, the
Two resistance 8,3rd resistor 9 and metal-oxide-semiconductor 13, each resistance has two ends.Driving chip includes 6 pins, is respectively power supply 14
Input pin 1, the grounding pin 2, LED ripple current of power supply 14 arrange pin 3, the raster data model pin 4 of external metal-oxide-semiconductor 13, LED works
Make current sample pin 5, LED pressure limitings and short-circuit protection pin 6.
Driving chip is described as follows with the concrete annexation of peripheral circuit：
The input pin 1 of power supply 14 is connected with the first end of first resistor 7, and the second end of first resistor 7 is used for and power supply 14
Positive pole connection.The grounding pin 2 of power supply 14 is grounded.LED ripple current arranges the positive pole of the polar capacitor 10 of pin 3 and first and connects
Connect, the minus earth of the first polar capacitor 10.The raster data model pin 4 of external metal-oxide-semiconductor 13 is connected with the grid of metal-oxide-semiconductor 13, is used for
Drive the grid of metal-oxide-semiconductor 13.The source electrode of metal-oxide-semiconductor 13 is connected with the first end of second resistance 8, the second end ground connection of second resistance 8.
The drain electrode of metal-oxide-semiconductor 13 is connected with the first end of 3rd resistor 9.LED operation current sample pin 5 is connected with the source electrode of metal-oxide-semiconductor 13.
LED pressure limitings and short-circuit protection pin 6 are connected with the second end of 3rd resistor 9.The positive pole of the second polar capacitor 11 and first resistor 7
First end connection, the minus earth of the second polar capacitor 11.The positive pole of the 3rd polar capacitor 12 is used for the positive pole with power supply 14
Connection, the minus earth of the 3rd type electric capacity.The minus earth of power supply 14.
Driving chip can be converted into ripple voltage ripple current, eliminate impact of the current fluctuation to the brightness of LED lamp bead 15.
In the drive module, driving chip built-in various defencive functions, such as overheat protector, overcurrent protection, fast short-circuit protective etc.
Function, high current caused by the short circuit of LED lamp bead 15 can be detected in most fast 0.05 second, and then cuts off output, and is tested oneself
Self-starting, effectively prevent because output end load puncture short causes to burn out the situation of circuit board.As one of the present embodiment
Optimal enforcement mode, metal-oxide-semiconductor 13 adopts N-channel MOS pipe 13, can drive the operation duration electric current for realizing maximum 3.5A.Pressure limiting
By the working condition of matching impedance real-time sampling circuit, and then internal adjustment can be carried out with short-circuit protection pin, and pass through the
One polar capacitor 10 can change the coefficient of output ripple, realize the optimum optimization of LED efficiency and ripple rate.
Used as an optimal enforcement mode of the present embodiment, driving chip is encapsulated using SOT23-6.Can greatly save
Circuit board space and cost, while meeting the requirement of high efficiency, high stability.
Used as an optimal enforcement mode of the present embodiment, first resistor 7, second resistance 8 and second resistance 8 are paster electricity
Resistance；First polar capacitor 10, the second polar capacitor 11, the 3rd polar capacitor 12 are patch capacitor.
Finally it should be noted that：The various embodiments described above are merely to illustrate the technical solution of the utility model, rather than it is limited
System；Although being described in detail to the utility model with reference to the foregoing embodiments, one of ordinary skill in the art should manage
Solution：It still can modify to the technical scheme described in previous embodiment, or special to which part or whole technologies
Levying carries out equivalent；And these are changed or are replaced, the essence disengaging the utility model for not making appropriate technical solution is respectively implemented
The scope of example technical scheme.
Claims (4)
1. a kind of LED illumination is without stroboscopic circuit drives module, it is characterised in that including driving chip and peripheral circuit；
The peripheral circuit include the first polar capacitor, the second polar capacitor, the 3rd polar capacitor, first resistor, second resistance,
3rd resistor and metal-oxide-semiconductor, each resistance has two ends；
The driving chip include 6 pins, be respectively power input pin, power ground pin, LED ripple current arrange draw
Pin, external metal-oxide-semiconductor raster data model pin, LED operation current sample pin, LED pressure limitings and short-circuit protection pin；
The power input pin is connected with the first end of the first resistor, and the second end of the first resistor is used for and power supply
Positive pole connection；
The power ground pin ground connection；
The LED ripple current arranges pin and be connected with the positive pole of first polar capacitor, and first polar capacitor is born
Pole is grounded；
The external metal-oxide-semiconductor raster data model pin is connected with the grid of the metal-oxide-semiconductor, for driving the grid of the metal-oxide-semiconductor；Institute
State the source electrode of metal-oxide-semiconductor to be connected with the first end of second resistance, the second end ground connection of the second resistance；The drain electrode of the metal-oxide-semiconductor
It is connected with the first end of the 3rd resistor；
The LED operation current sample pin is connected with the source electrode of the metal-oxide-semiconductor；
The LED pressure limitings and short-circuit protection pin are connected with the second end of the 3rd resistor；
The positive pole of second polar capacitor is connected with the first end of the first resistor, and the negative pole of second polar capacitor connects
Ground；
The positive pole of the 3rd polar capacitor is used to be connected with the positive pole of the power supply, and the negative pole of the 3rd type electric capacity connects
Ground；
The minus earth of the power supply.
2. LED illumination as claimed in claim 1 is without stroboscopic circuit drives module, it is characterised in that the driving chip is adopted
SOT23-6 is encapsulated.
3. LED illumination as claimed in claim 1 is without stroboscopic circuit drives module, it is characterised in that the metal-oxide-semiconductor is N-channel
Metal-oxide-semiconductor.
4. LED illumination as claimed in claim 1 is without stroboscopic circuit drives module, it is characterised in that the first resistor, second
Resistance and second resistance are Chip-R；First polar capacitor, the second polar capacitor, the 3rd polar capacitor are paster electricity
Hold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621254717.XU CN206164931U (en) | 2016-11-14 | 2016-11-14 | LED no stroboscopic circuit drive module that throws light on |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621254717.XU CN206164931U (en) | 2016-11-14 | 2016-11-14 | LED no stroboscopic circuit drive module that throws light on |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206164931U true CN206164931U (en) | 2017-05-10 |
Family
ID=58660848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621254717.XU Expired - Fee Related CN206164931U (en) | 2016-11-14 | 2016-11-14 | LED no stroboscopic circuit drive module that throws light on |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206164931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109831844A (en) * | 2018-12-18 | 2019-05-31 | 陕西亚成微电子股份有限公司 | A kind of no stroboscopic High Power Factor LED driving method and circuit |
-
2016
- 2016-11-14 CN CN201621254717.XU patent/CN206164931U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109831844A (en) * | 2018-12-18 | 2019-05-31 | 陕西亚成微电子股份有限公司 | A kind of no stroboscopic High Power Factor LED driving method and circuit |
| CN109831844B (en) * | 2018-12-18 | 2024-03-22 | 陕西亚成微电子股份有限公司 | Stroboflash-free high-power-factor LED driving method and circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20211114 |