CN217160076U - LED lamp area does not have stroboscopic drive circuit - Google Patents
LED lamp area does not have stroboscopic drive circuit Download PDFInfo
- Publication number
- CN217160076U CN217160076U CN202220652173.1U CN202220652173U CN217160076U CN 217160076 U CN217160076 U CN 217160076U CN 202220652173 U CN202220652173 U CN 202220652173U CN 217160076 U CN217160076 U CN 217160076U
- Authority
- CN
- China
- Prior art keywords
- control module
- rectifier bridge
- module
- stroboscopic
- series
- 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
Images
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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The utility model discloses a LED lamp area does not have stroboscopic drive circuit, including the rectifier bridge, remove the stroboscopic module, control module and light source module, the rectifier bridge provides operating voltage for control module and light source module after going into the alternating current commercial power, control module control removes the electric capacity C1 of stroboscopic module and charges and discharges, even make the light source module be long and thin type's high-voltage lamp area, it can carry out no stroboscopic illumination equally, drive circuit's whole power factor has also been improved, reach PF > 0.7's standard, the whole circuit structure is retrencied rationally, need not a plurality of peripheral components of collocation and NULL.
Description
Technical Field
The utility model relates to a LED drive circuit, especially a LED lamp area does not have stroboscopic drive circuit.
Background
In the display life, a plurality of LED lamps can generate stroboscopic phenomenon, because the LED lamp beads are not matched with the LED driving power supply and the power is insufficient, the lamp beads are turned on and off, and gold wires or copper wires arranged in the lamp beads can be blown off due to serious phenomenon, the existing high-voltage non-stroboscopic LED driving structure is complex, large in size and high in cost, for example, a low-power-consumption non-stroboscopic induction LED lamp control circuit and an LED lamp with the publication number of CN215912251U realize non-stroboscopic by adopting a multi-chip combination mode of driving, stroboscopic removing and the like, a plurality of peripheral elements are needed to be matched, the wiring is complex, in addition, the LED light source adopts a mode that a plurality of LED lamp beads are connected in series, but the LED lamp beads in the middle of the reality have the problem of VF value error, the load of the LED light source is easily uneven, the stroboscopic phenomenon can be caused, and even the result that the LED lamp beads cannot be completely lightened is generated.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a LED lamp area does not have stroboscopic drive circuit.
The utility model provides a technical scheme that its technical problem adopted is:
a non-stroboscopic driving circuit of an LED lamp strip comprises a rectifier bridge, a stroboscopic removing module, a control module and a light source module, wherein the direct current output end of the rectifier bridge is connected with the control module in series; the input end of the light source module is connected with the anode of the output end of the rectifier bridge, and the output end of the light source module is connected with the control module; the stroboscopic removing module comprises a capacitor C1, one end of the capacitor C1 is connected with the anode of the output end of the rectifier bridge, and the other end of the capacitor C1 is connected with the driving end of the control module.
The light source module comprises a plurality of LED lamp banks connected in parallel, and the LED lamp banks connected in parallel are sequentially connected in series.
The LED lamp group is formed by connecting one or more LED lamp beads in series.
The model of the control module is 45X19CT, an adjusting resistor R2 is connected in series between the PF pin of the control module and the negative electrode of the output end of the rectifier bridge, a sampling resistor R3 is connected in series between the CS pin of the control module and the negative electrode of the output end of the rectifier bridge, and an adjusting capacitor C2 is connected in series between the Comp pin of the control module and the negative electrode of the output end of the rectifier bridge.
And a piezoresistor RV1 is connected in series between the driving end of the control module and the negative electrode of the output end of the rectifier bridge.
And a fast recovery diode is connected in series between the anode of the output end of the rectifier bridge and the node of the stroboscopic removing module.
The capacitance value range of the adjusting capacitor C2 is 0.22uF-1 uF.
The resistance range of the adjusting resistor R2 is 0-1M omega.
The utility model has the advantages that: the utility model discloses a provide operating voltage for control module and light source module after the alternating current commercial power is gone into to the rectifier bridge, control module control removes electric capacity C1 of stroboscopic module and carries out the charge-discharge, even make the light source module be long and thin type's high-voltage lamp area, it can carry out no stroboscopic illumination equally, drive circuit's whole power factor has also been improved, reach PF > 0.7's standard, overall circuit structure retrencies rationally, a plurality of peripheral components and integrated chip of need not to arrange, it is big that the series-parallel connection mode of light source module adoption earlier and back cluster can solve LED lamp pearl series connection effectively and parallelly connected VF value error, the inhomogeneous problem of load, further prevent that the light source module from taking place stroboscopic phenomenon, let each LED banks send bright light.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
Referring to fig. 1, a non-stroboscopic driving circuit for an LED lamp strip includes a rectifier bridge (labeled as D1 in the figure), a stroboscopic removing module (labeled as C in the figure), a control module, and a light source module (labeled as a in the figure), where a dc output end of the rectifier bridge is connected in series with the control module; the input end of the light source module is connected with the anode of the output end of the rectifier bridge, and the output end of the light source module is connected with the control module (namely, the output end of the light source module is connected with 6 pins of the control module, and the voltage of the pins is 0.6V of the reference voltage of the control module); the stroboscopic removing module comprises a resistor R1 and a capacitor C1, wherein one end of the stroboscopic removing module is connected with the anode of the output end of the rectifier bridge after the stroboscopic removing module and the capacitor R1 are connected in series, and the other end of the stroboscopic removing module is connected with the driving end of the control module; the input of rectifier bridge inserts 220V and exchanges behind the commercial power rectification, for control module and light source module provide operating voltage, control module control removes the electric capacity C1 of stroboscopic module and carries out charge-discharge for even the light source module is long and thin type's high-voltage lamp area, it can carry out no stroboscopic illumination equally, has also improved drive circuit's whole power factor, reaches PF > 0.7's standard, for keeping stable, it still includes resistance R1 to remove the stroboscopic module, resistance R1 with electric capacity C1 establishes ties.
The light source module comprises parallel LED lamp banks (marked as B in the figure), the parallel LED lamp banks are sequentially connected in series, the light source module adopts a parallel-serial mode of firstly connecting in parallel and then connecting in series, the problems of large error and uneven load of serial and parallel VF values of the LED lamp beads can be effectively solved, the light source module is further prevented from generating a stroboscopic phenomenon, each LED lamp bank can emit bright illuminating light, and the whole light source module can be set into a string of LED lamp beads according to actual requirements.
The LED lamp group is formed by connecting one or more LED lamp beads in series; the light and shade difference phenomenon caused by forward conduction voltage Value (VF) characteristic difference of partial LED lamp beads can be relieved, and the more the number of the lamp beads connected in series is, the more the light and shade difference phenomenon is.
The model of the control module is 45X19CT, and an adjusting resistor R2 is connected in series between the PF pin of the control module and the negative electrode of the output end of the rectifier bridge; through changing the resistance value of the PF pin to the ground, whether the adjusting driving circuit has the characteristic of high PF or high system efficiency is adjusted, the PF pin is suspended, the efficiency of the driving circuit is highest, the PF is lower, when the PF pin is grounded, the PF is higher, the driving circuit is lower, and the driving circuit can be adjusted according to actual requirements.
A sampling resistor R3 is connected in series between a CS pin of the control module and a negative electrode of an output end of the rectifier bridge, the resistance value is 100R, the resistance value of the CS pin to the ground is detected, the current flowing through the light source module is controlled, an adjusting capacitor C2 is connected in series between a Comp pin of the control module and the negative electrode of the output end of the rectifier bridge, the overall efficiency of the driving circuit can be improved by changing the adjusting capacitor C2, on the basis that the resistance value of the adjusting resistor R2 is 4.7K omega, the capacitance value range of the adjusting capacitor C2 is 0.22uF-1uF, and the actual working efficiency of the driving circuit is the most good.
A voltage dependent resistor RV1 is connected in series between the driving end of the control module and the negative electrode of the output end of the rectifier bridge, so that the control module can be effectively protected, the surge is prevented from impacting the control module, and the reliability of the driving circuit is enhanced.
The fast recovery diode is connected in series at the node of the stroboscopic removing module and the anode of the output end of the rectifier bridge, and the driving circuit is more stable in operation due to the characteristics of good switching characteristic, short reverse recovery time and high voltage withstanding value.
The non-inverting input end of the rectifier is connected in series with a fuse F1 to perform overcurrent and overvoltage protection on the drive circuit.
The above embodiments are not intended to limit the scope of the present invention, and those skilled in the art can make modifications and variations equivalent without departing from the overall concept of the present invention.
Claims (8)
1. A non-stroboscopic driving circuit of an LED lamp strip is characterized by comprising a rectifier bridge, a stroboscopic removing module, a control module and a light source module, wherein a direct current output end of the rectifier bridge is connected with the control module in series; the input end of the light source module is connected with the anode of the output end of the rectifier bridge, and the output end of the light source module is connected with the control module; the stroboscopic removing module comprises a capacitor C1, one end of the capacitor C1 is connected with the anode of the output end of the rectifier bridge, and the other end of the capacitor C1 is connected with the driving end of the control module.
2. A LED strip strobe-free driving circuit as claimed in claim 1, wherein the light source module comprises a plurality of LED banks connected in parallel, each of the LED banks connected in parallel being connected in series in turn.
3. A LED lamp strip strobe-free driving circuit as claimed in claim 2, wherein the LED lamp set is composed of one or more LED lamp beads connected in series.
4. A LED light strip no-strobe driving circuit as claimed in claim 1, wherein the model of the control module is 45X19CT, a regulating resistor R2 is connected in series between the PF pin of the control module and the negative electrode of the output end of the rectifier bridge, a sampling resistor R3 is connected in series between the CS pin of the control module and the negative electrode of the output end of the rectifier bridge, and a regulating capacitor C2 is connected in series between the Comp pin of the control module and the negative electrode of the output end of the rectifier bridge.
5. A LED lamp strip strobe-free driving circuit as claimed in claim 4, wherein the capacitance value range of the adjusting capacitor C2 is 0.22uF-1 uF.
6. A LED light strip strobe-free driving circuit as claimed in claim 4, wherein the resistance of the regulating resistor R2 is in the range of 0 Ω -1M Ω.
7. A LED light strip strobe-free driving circuit as claimed in claim 1, wherein a voltage dependent resistor RV1 is connected in series between the driving end of the control module and the negative electrode of the output end of the rectifier bridge.
8. A LED light strip strobe-free driving circuit as claimed in claim 1, wherein a fast recovery diode is connected in series between the positive electrode of the output end of the rectifier bridge and the node of the stroboscopic removing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220652173.1U CN217160076U (en) | 2022-03-24 | 2022-03-24 | LED lamp area does not have stroboscopic drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220652173.1U CN217160076U (en) | 2022-03-24 | 2022-03-24 | LED lamp area does not have stroboscopic drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217160076U true CN217160076U (en) | 2022-08-09 |
Family
ID=82695460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220652173.1U Active CN217160076U (en) | 2022-03-24 | 2022-03-24 | LED lamp area does not have stroboscopic drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217160076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116017808A (en) * | 2023-03-27 | 2023-04-25 | 厦门普为光电科技有限公司 | Lighting device protection circuit with high voltage-resistant capability |
-
2022
- 2022-03-24 CN CN202220652173.1U patent/CN217160076U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116017808A (en) * | 2023-03-27 | 2023-04-25 | 厦门普为光电科技有限公司 | Lighting device protection circuit with high voltage-resistant capability |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102740561B (en) | LED (Light Emitting Diode) driving circuit | |
| CN103175003A (en) | Illuminating device | |
| CN102892238B (en) | Dimming drive circuit of AC (Alternating Current) direct drive LED module | |
| CN217160076U (en) | LED lamp area does not have stroboscopic drive circuit | |
| CN202127536U (en) | Constant current circuit of light-emitting diode driving device | |
| CN201599589U (en) | LED fluorescent lamp | |
| CN107660019A (en) | Light source and light emitting module | |
| CN202652594U (en) | Light emitting diode driver possessing protection path | |
| CN1816234A (en) | Stable long-acting lighting indication device for light-emitting diode | |
| CN203596961U (en) | Light-emitting diode (LED) drive circuit | |
| CN210351737U (en) | LED street lamp drive circuit | |
| CN111642042B (en) | Linear LED drive circuit and drive method thereof | |
| CN103200729B (en) | Light emitting diode (LED) luminous device directly driven in constant current by alternating current | |
| CN212851093U (en) | Multi-string LED lamp driving circuit | |
| CN212381435U (en) | Low-cost LED current-limiting circuit | |
| CN110891348A (en) | High-voltage high-power-factor stroboflash-free lamp strip | |
| CN210670671U (en) | LED lamp power supply drive for controlling light source balance | |
| CN212381440U (en) | Novel low-cost LED current-limiting circuit | |
| CN206202111U (en) | Self-inspection LED brake light circuits based on potential difference function | |
| CN104936342A (en) | LED lamp protection circuit | |
| CN211047300U (en) | Multi-path L ED driving circuit | |
| CN204795757U (en) | LED lamp drive protection circuit | |
| CN217428401U (en) | Adjustable light linear circuit capable of adjusting constant output current | |
| CN217011251U (en) | LED lamp drive-free circuit board | |
| CN217470333U (en) | Linear stroboflash-free LED drive circuit and LED bulb |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |