CN108184282A - A kind of direct-current LED floodlight driver of Width funtion high brightness - Google Patents
A kind of direct-current LED floodlight driver of Width funtion high brightness Download PDFInfo
- Publication number
- CN108184282A CN108184282A CN201711333619.4A CN201711333619A CN108184282A CN 108184282 A CN108184282 A CN 108184282A CN 201711333619 A CN201711333619 A CN 201711333619A CN 108184282 A CN108184282 A CN 108184282A
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- CN
- China
- Prior art keywords
- circuit
- high brightness
- direct
- current
- width funtion
- 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.)
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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]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A kind of direct-current LED floodlight driver of Width funtion high brightness, monolithic IC is used as driving element, additional simple circuit forms the DC lighting lamp of high brightness, the circuit connection of its luminescent screen is using the mode of connection connected all the way, the input power of LED illumination lamp can be direct current 12V, it can also be 24V, can also be 36V, the input of so wide voltage value can drive LED illumination lamp to work normally.
Description
Technical field
The present invention relates to a kind of direct-current LED floodlight drivers of Width funtion high brightness.
Background technology
Direct-current LED headlamp currently on the market there is no in addition setting driver, and input voltage is very narrow, and
Voltage value is fixed or is 12V or is 24V, and the two cannot share.It is direct-current LED headlamp in the market again, shines
The circuit connecting mode of plate is that 3 LED are in series, a current-limiting resistance of then connecting again, is increased further according to the watt level of lamp
Circuitry number in parallel.
Invention content
A kind of direct-current LED floodlight driver of Width funtion high brightness of the present invention, uses monolithic IC as driving element, additional
Simple circuit forms the DC lighting lamp of high brightness, and the circuit connection of luminescent screen is using the mode of connection connected all the way, LED
The input power of headlamp can be direct current 12V or 24V, can also be 36V, and so wide voltage value inputs all
LED illumination lamp can be driven to work normally.
A kind of direct-current LED headlamp of Width funtion high brightness, circuit composition is by IC voltage increase and current constants circuit, PWM modulation electricity
Road and anti-polarity misconnection circuit composition.
Description of the drawings
Fig. 1 is a kind of circuit diagram of the direct-current LED floodlight driver of Width funtion high brightness.
Specific embodiment
As shown in Figure 1, IC and peripheral circuit composition voltage increase and current constant circuit, IC are model XL6003 elements, " 1 " foot is makes
Energy end, when driving ON/OFF pins are low level, then power cutoff exports, and when this pin is hanging, acquiescence is high level.At this time
IC exports high level to next stage circuit output power supply." 2 " foot is voltage input end, and XL6003 is operated in 3.6~36V,
Input terminal is external to be suitble to big shunt capacitance to ground to eliminate input noise." 3 " foot is feedback signal pin, and feedback voltage is
0.23V." 4 " foot sky foot." 5 ", " 6 " foot are connected in parallel, and are power switch output pin, and function provides output work for load
Rate." 7 ", " 8 " foot are ground terminal.
As shown in Figure 1, IC and peripheral circuit composition PWM voltage increase and current constant circuits, it can be by input power 12V or 24V or 36V
DC voltage is promoted to the operating voltage needed for LED strings, has preferable linear and load characteristic.XL6003 has fixed frequency
PWM modulation function, the resistance R resistance value external by changing IC chip " 3 " foot, then with the resistance of feedback voltage 0.23V divided by R
Value, you can obtain the operating current of LED strings.Inductance L and diode D2 composition freewheeling circuits, when PWM exports low level, by electricity
The freewheeling circuit for feeling L and diode D2 compositions provides operating current to load, and D2 is fast recovery diode, can a selection SF18 etc.
Model, it can at the low pulse of PWM moment, from freewheeling circuit to load provide working power, stablize LED illumination lamp perseverance
Galvanic electricity stream supplies.
As shown in Figure 1, diode D1 forms anti-polarity misconnection circuit, when circuit lacks D1, once the anode by power supply
Be connected to IC periphery 7,8 foot when, IC will be burnt out.So setting up D1 circuits, electric power polarity wrong can be effectively prevented and cause IC
Burn out accident.C2 is filter capacitor, plays filter function in circuit.
Claims (1)
1. a kind of direct-current LED floodlight driver of Width funtion high brightness, circuit is by IC voltage increase and current constants circuit, PWM modulation electricity
Road, anti-polarity misconnection circuit and luminescent screen circuit composition；Its spy's card is：Monolithic IC is used as driving element, it is additional simple
Circuit forms the DC lighting lamp of high brightness, and the circuit of luminescent screen is driven to connect using the mode of connection connected all the way, LED illumination
The input power of lamp can be direct current 12V or 24V, can also be 36V, the input of so wide voltage value can
Drive LED illumination lamp normal work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711333619.4A CN108184282A (en) | 2017-12-12 | 2017-12-12 | A kind of direct-current LED floodlight driver of Width funtion high brightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711333619.4A CN108184282A (en) | 2017-12-12 | 2017-12-12 | A kind of direct-current LED floodlight driver of Width funtion high brightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108184282A true CN108184282A (en) | 2018-06-19 |
Family
ID=62545902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711333619.4A Withdrawn CN108184282A (en) | 2017-12-12 | 2017-12-12 | A kind of direct-current LED floodlight driver of Width funtion high brightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108184282A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203661352U (en) * | 2013-12-04 | 2014-06-18 | 慈溪市凌宇电子科技有限公司 | Low voltage LED lamp driving circuit |
-
2017
- 2017-12-12 CN CN201711333619.4A patent/CN108184282A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203661352U (en) * | 2013-12-04 | 2014-06-18 | 慈溪市凌宇电子科技有限公司 | Low voltage LED lamp driving circuit |
Non-Patent Citations (1)
| Title |
|---|
| 孙安青: "《LED应用电路200例》", 31 May 2013, 北京：中国电力出版社 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180619 |
|
| WW01 | Invention patent application withdrawn after publication |