CN203104885U - Novel large-power LED drive power supply - Google Patents
Novel large-power LED drive power supply Download PDFInfo
- Publication number
- CN203104885U CN203104885U CN 201220752192 CN201220752192U CN203104885U CN 203104885 U CN203104885 U CN 203104885U CN 201220752192 CN201220752192 CN 201220752192 CN 201220752192 U CN201220752192 U CN 201220752192U CN 203104885 U CN203104885 U CN 203104885U
- Authority
- CN
- China
- Prior art keywords
- voltage
- protector
- transformer
- power supply
- pwm controller
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a novel large-power LED drive power supply comprising a power supply, a first filtering rectifier, a transformer, a second filtering rectifier, a DC output apparatus, a sampling circuit, a short circuit protector, a current-limiting protector, a voltage-stabilizing protector, a PWM controller and an input under-voltage protector, wherein the power supply, the first filtering rectifier, the transformer, the second filtering rectifier, the DC output apparatus, the sampling circuit, the voltage-stabilizing protector and the PWM controller are successively connected with each other. The first filtering rectifier filters high frequency clutter and changes wave to DC, the transformer carries out voltage reduction, pulse voltage after voltage reduction of the transformer is performed rectification and filtering by the second filtering rectifier, and low voltage DC is output for an LED. The LED drive power supply has the advantages of simple circuit, high efficiency and low cost.
Description
Technical field
The utility model relates to a kind of new type high-power LED driving power source.
Background technology
LED is a light-emitting diode, is a kind of purposes solid luminescence light source very widely, a kind of electronic device that electric energy can be converted into luminous energy.Because LED has energy-saving and environmental protection, long service life, the volume of LED element is very little, the light ray energy concentration degree of sending of LED is very high, the luminous directive property of LED is very strong, LED uses low-voltage DC to drive, the color rendering advantages of higher, LED is widely used in five big fields such as backlight, illumination, electronic equipment, display screen, automobile.And along with the continuous breakthrough of LED research and development technology, high brightness, super brightness, high-power LED are come out one after another, particularly the luminous efficiency of white light LEDs has surpassed incandescent lamp commonly used, and just the direction of using towards illumination develops, and has greatly to replace the traditional incandescent lamp even the trend of electricity-saving lamp.Therefore, be badly in need of a kind of new type high-power LED driving power source of invention.
Summary of the invention
The technical problems to be solved in the utility model provides the new type high-power LED driving power source that a kind of circuit is simple, efficient, cost is low.
For addressing the above problem; the utility model adopts following technical scheme: a kind of new type high-power LED driving power source; comprise power supply, the first filter rectification device, transformer, the second filter rectification device, DC output devices, sample circuit, short-circuit protector, limiting protector, voltage-stabilizing protection device, PWM controller and input under-voltage protection device, described power supply, the first filter rectification device, transformer, the second filter rectification device, DC output devices, sample circuit, voltage-stabilizing protection device link to each other successively with the PWM controller.
As optimized technical scheme, described DC output devices connects short-circuit protector and limiting protector, and described short-circuit protector is connected the PWM controller with limiting protector.
As optimized technical scheme, described PWM controller connects the first filter rectification device, transformer and input under-voltage protection device.
As optimized technical scheme, described input under-voltage protection device connects the first filter rectification device.
The beneficial effect of the utility model new type high-power LED driving power source is: become direct current by the first filter rectification device filtering high frequency clutter, again by the transformer step-down, pulsating voltage after the transformer step-down, row rectification and filtering when using the second filter rectification device, what export is that low-voltage DC uses for LED, has simple, the efficient and low advantage of cost of circuit.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model new type high-power LED driving power source.
Embodiment
See also shown in Figure 1; a kind of new type high-power LED driving power source of the present utility model; comprise power supply, the first filter rectification device, transformer, the second filter rectification device, DC output devices, sample circuit, short-circuit protector, limiting protector, voltage-stabilizing protection device, PWM controller and input under-voltage protection device, described power supply, the first filter rectification device, transformer, the second filter rectification device, DC output devices, sample circuit, voltage-stabilizing protection device link to each other successively with the PWM controller.
Described DC output devices connects short-circuit protector and limiting protector, and described short-circuit protector is connected the PWM controller with limiting protector.Described PWM controller connects the first filter rectification device, transformer and input under-voltage protection device.Described input under-voltage protection device connects the first filter rectification device.
The beneficial effect of the utility model new type high-power LED driving power source is: become direct current by the first filter rectification device filtering high frequency clutter, again by the transformer step-down, pulsating voltage after the transformer step-down, row rectification and filtering when using the second filter rectification device, what export is that low-voltage DC uses for LED, has simple, the efficient and low advantage of cost of circuit.
The above only is an embodiment of the present utility model, but protection range of the present utility model is not limited thereto, and any variation or replacement of expecting without creative work all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range that claims were limited.
Claims (4)
1. new type high-power LED driving power source; it is characterized in that: comprise power supply, the first filter rectification device, transformer, the second filter rectification device, DC output devices, sample circuit, short-circuit protector, limiting protector, voltage-stabilizing protection device, PWM controller and input under-voltage protection device, described power supply, the first filter rectification device, transformer, the second filter rectification device, DC output devices, sample circuit, voltage-stabilizing protection device link to each other successively with the PWM controller.
2. new type high-power LED driving power source according to claim 1 is characterized in that: described DC output devices connects short-circuit protector and limiting protector, and described short-circuit protector is connected the PWM controller with limiting protector.
3. new type high-power LED driving power source according to claim 1 is characterized in that: described PWM controller connects the first filter rectification device, transformer and input under-voltage protection device.
4. new type high-power LED driving power source according to claim 1 is characterized in that: described input under-voltage protection device connects the first filter rectification device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220752192 CN203104885U (en) | 2012-12-31 | 2012-12-31 | Novel large-power LED drive power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220752192 CN203104885U (en) | 2012-12-31 | 2012-12-31 | Novel large-power LED drive power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203104885U true CN203104885U (en) | 2013-07-31 |
Family
ID=48856252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220752192 Expired - Fee Related CN203104885U (en) | 2012-12-31 | 2012-12-31 | Novel large-power LED drive power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203104885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107949094A (en) * | 2017-10-31 | 2018-04-20 | 马瑞利汽车零部件(芜湖)有限公司 | Hardware based long-and-short distant light drive circuit system |
-
2012
- 2012-12-31 CN CN 201220752192 patent/CN203104885U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107949094A (en) * | 2017-10-31 | 2018-04-20 | 马瑞利汽车零部件(芜湖)有限公司 | Hardware based long-and-short distant light drive circuit system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201657400U (en) | LED dimming controller | |
| CN205320350U (en) | LED (Light emitting diode) driving power | |
| US8723433B2 (en) | Power transformation apparatus between DC light element and ballast | |
| CN204104169U (en) | A kind of high-power LED drive circuit | |
| CN203104885U (en) | Novel large-power LED drive power supply | |
| CN204119604U (en) | The Multi-channel high-frequency impulse circuit of LED lamp | |
| CN202713751U (en) | LED energy saving lamp integrated module | |
| CN102791063A (en) | Intelligent LED module with function of automatic voltage regulation | |
| CN203104911U (en) | High-power LED (light emitting diode) drive power supply | |
| CN204539549U (en) | A kind of Simple LED | |
| CN203896539U (en) | Light modulation constant current driving power supply without light modulator and used for LED illumination | |
| CN202310223U (en) | Stable-sampling-voltage LED (light-emitting diode) constant-current drive power source | |
| CN204069403U (en) | A kind of efficient ac LED | |
| CN202261926U (en) | Circuit structure driven by alternating current and constant current supply for LED lamp | |
| CN203675362U (en) | Illuminating lamp general for light emitting diodes | |
| CN203708584U (en) | Bidirectional driving LED circuit | |
| CN103269540A (en) | Double-circuit complementary linear LED constant current circuit | |
| CN202077229U (en) | Driving circuit for LED lamp | |
| CN203618187U (en) | Boosted circuit of constant current boosted power source of LED energy-saving lamp | |
| CN203251478U (en) | Two-path complementation linear LED constant current circuit | |
| CN202231909U (en) | Circuit structure for large-power LED (Light-emitting Diode) illuminating lamp alternating-current power supply drive | |
| CN204291489U (en) | A kind of LED lamp drive circuit | |
| CN204559980U (en) | A kind of lower voltage LED lamp | |
| CN203537250U (en) | LED power supply conversion circuit | |
| CN204598355U (en) | The drive circuit of LED |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20131231 |