CN202310226U - LED (Light Emitting Diode) driving power supply - Google Patents
LED (Light Emitting Diode) driving power supply Download PDFInfo
- Publication number
- CN202310226U CN202310226U CN2011204255497U CN201120425549U CN202310226U CN 202310226 U CN202310226 U CN 202310226U CN 2011204255497 U CN2011204255497 U CN 2011204255497U CN 201120425549 U CN201120425549 U CN 201120425549U CN 202310226 U CN202310226 U CN 202310226U
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- circuit
- driving power
- led driving
- transformer
- power supply
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Abstract
The utility model relates to an LED (Light Emitting Diode) driving power supply which comprises transformers and a circuit board, wherein an input end, an input rectifying filter circuit, a power conversion circuit, an output rectifying filter circuit and an output end are arranged on the circuit board in turn; each transformer comprises a first transformer and a second transformer which are serially connected with the power conversion circuit; and the size of the first transformers and the second transformers is less than 16mm. Two transformers with the size being less than 16mm are serially connected and used in the LED driving power supply provided by the utility model, so that the power of the LED driving power supply is increased to above 18W; at the moment of full voltage 100-240Vac input, the efficiency of the LED driving power supply is kept above 86%; the transformers are unsaturated at low voltage 85Vac; the LED driving power supply provided by the utility model can be easily mounted in a T8 one-half structured aluminum tube; and compared with the LED driving power supply with same power, the LED driving power supply provided by the utility model has the advantage that the cost is lowered.
Description
Technical field
The utility model relates to LED and makes field, particularly a kind of LED driving power.
Background technology
The LED driving power is to convert the power supply supply into specific electric current and voltage with the luminous electric pressure converter of driving LED.Generally, the input of LED driving power comprises high pressure industrial frequency AC (being civil power), low-voltage direct, HVDC, low pressure high-frequency ac (like the output of electronic transformer) etc.The output of LED driving power is then most of for changing the constant current source that change voltage with LED forward voltage drop value.
The LED driving power is widely used in: street lamp, tunnel lamp, LED Grille lamp, LED indoor lamp, LED Ceiling light, building, road and bridge, square Architectural Equipment, Lawn lamp, curtain wall lamp, mobile phone, computer etc., information plane show: the mine lamp during indicator light in display panel, dynamic billboard, simulation animation, stadiums, the compartment and internal read lamp, outer stop lamp, taillight, direction indicator lamp, side lamp, explosion-proof lamp, the mining industry of car are produced etc.
Present LED driving power, under the situation that satisfies high efficiency and high power requirement, often size is bigger, and production cost is higher, has limited its further development and application.
The utility model content
The utility model technical problem to be solved provides the little LED driving power of a kind of low cost, high efficiency, high power and size.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of LED driving power; Comprise transformer and circuit board; Be provided with input, input rectifying filter circuit, power conversion circuit, output rectifier and filter and output on the said circuit board successively; Said transformer comprises first transformer and second transformer, and said first transformer and second transformer are connected in series on the power conversion circuit of said circuit board, and the specification of said first transformer and second transformer is less than 16mm.
The LED driving power of the utility model has adopted the mode that two specifications are used less than the transformer series connection of 16mm, and the power of LED driving power can be brought up to more than the 18W, has reached high-power purpose; During full voltage 100～240Vac input, the efficient of LED driving power can both guarantee more than 86%, and transformer is unsaturated at low pressure 85Vac place, has reached high efficiency purpose; Because the specification of transformer is less than 16mm, total height is less than 9mm, so the LED driving power package dimension of the utility model is very little, in T8 1/2nd structure aluminum tubes of can packing into very easily, has overcome the larger-size defective of existing LED driving power; Than the LED driving power with constant power, the LED driving power of the utility model can be saved the material cost more than 1.5 yuan, has reached purpose cheaply.
In order to remove high frequency clutter and interference signal, also be provided with the EMI circuit on the said circuit board, said EMI circuit is electrically connected with the input rectifying filter circuit with said input respectively.
In order to prevent that lightning overvoltage and transient overvoltage from bringing damage to LED driving power and power consumption equipment, also comprise Surge Protector, said Surge Protector is electrically connected with the EMI circuit with said input respectively
Wherein, also comprise the PWM controller, said PWM controller is electrically connected with said power conversion circuit.
Bring damage in order to prevent that input voltage from crossing to hang down to LED driving power and power consumption equipment, also be provided with the input under-voltage protecting circuit on the said circuit board, said input under-voltage protecting circuit is electrically connected with said input rectifying filter circuit and PWM controller respectively.
Bring damage in order to prevent that output voltage is too high to power consumption equipment, also be provided with the output over-voltage protection circuit on the said circuit board, said output over-voltage protection circuit is electrically connected with said output and PWM controller respectively.
In order to prevent that line short from bring damage for LED driving power and power consumption equipment, also be provided with short-circuit protection circuit on the said circuit board, said short-circuit protection circuit is electrically connected with said output and PWM controller respectively.
Bring damage in order to prevent that output current is excessive to power consumption equipment, also be provided with current-limiting protection circuit on the said circuit board, said current-limiting protection circuit is electrically connected with said output and PWM controller respectively.
Description of drawings
Shown in Figure 1 is the electrical block diagram of the utility model embodiment.
Shown in Figure 2 is the circuit connection sketch map of the utility model embodiment.
Label declaration:
1, first transformer 2, second transformer
Embodiment
By the technology contents, the structural feature that specify the utility model, realized purpose and effect, know clearly below in conjunction with execution mode and conjunction with figs. and give explanation.
With reference to Fig. 1 and shown in Figure 2; The LED driving power of the utility model; Comprise transformer and circuit board, be provided with input, input rectifying filter circuit, power conversion circuit, output rectifier and filter and output on the said circuit board successively, said transformer comprises first transformer 1 and second transformer 2; Said first transformer 1 and second transformer 2 are connected in series on the power conversion circuit of said circuit board, and the specification of said first transformer 1 and second transformer 2 is less than 16mm.
The LED driving power of the utility model has adopted the mode that two specifications are used less than the transformer series connection of 16mm, and the power of LED driving power can be brought up to more than the 18W, has reached high-power purpose; During full voltage 100～240Vac input, the efficient of LED driving power can both guarantee more than 86%, and transformer is unsaturated at low pressure 85Vac place, has reached high efficiency purpose; Because the specification of transformer is less than 16mm, total height is less than 9mm, so the LED driving power package dimension of the utility model is very little, in T8 1/2nd structure aluminum tubes of can packing into very easily, has overcome the larger-size defective of existing LED driving power; Than the LED driving power with constant power, the LED driving power of the utility model can be saved the material cost more than 1.5 yuan, has reached purpose cheaply.
In the above-described embodiments, also be provided with the EMI circuit on the said circuit board, said EMI circuit is electrically connected with the input rectifying filter circuit with said input respectively, can remove high frequency clutter and interference signal like this.
In the above-described embodiments, also comprise Surge Protector, said Surge Protector is electrically connected with the EMI circuit with said input respectively, can prevent that like this lightning overvoltage and transient overvoltage from bringing damage to LED driving power and power consumption equipment.
In the above-described embodiments, also comprise the PWM controller, said PWM controller is electrically connected with said power conversion circuit.
In the above-described embodiments; Also be provided with the input under-voltage protecting circuit on the said circuit board; Said input under-voltage protecting circuit is electrically connected with said input rectifying filter circuit and PWM controller respectively, can prevent like this that input voltage from crossing low to bring damage to LED driving power and power consumption equipment.
In the above-described embodiments, also be provided with the output over-voltage protection circuit on the said circuit board, said output over-voltage protection circuit is electrically connected with said output and PWM controller respectively, can prevent like this that output voltage is too high to bring damage to power consumption equipment.
In the above-described embodiments, said short-circuit protection circuit is electrically connected with said output and PWM controller respectively, can prevent that like this line short from bring damage for LED driving power and power consumption equipment, also is provided with short-circuit protection circuit on the said circuit board.
In the above-described embodiments, also be provided with current-limiting protection circuit on the said circuit board, said current-limiting protection circuit is electrically connected with said output and PWM controller respectively, can prevent like this that output current is excessive to bring damage to power consumption equipment.
The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (8)
1. LED driving power; Comprise transformer and circuit board; It is characterized in that: be provided with input, input rectifying filter circuit, power conversion circuit, output rectifier and filter and output on the said circuit board successively; Said transformer comprises first transformer and second transformer, and said first transformer and second transformer are connected in series on the said power conversion circuit, and the specification of said first transformer and second transformer is less than 16mm.
2. LED driving power according to claim 1 is characterized in that: also be provided with the EMI circuit on the said circuit board, said EMI circuit is electrically connected with the input rectifying filter circuit with said input respectively.
3. LED driving power according to claim 2 is characterized in that: also comprise Surge Protector, said Surge Protector is electrically connected with the EMI circuit with said input respectively.
4. LED driving power according to claim 1 is characterized in that: also comprise the PWM controller, said PWM controller is electrically connected with said power conversion circuit.
5. LED driving power according to claim 4 is characterized in that: also be provided with the input under-voltage protecting circuit on the said circuit board, said input under-voltage protecting circuit is electrically connected with said input rectifying filter circuit and PWM controller respectively.
6. LED driving power according to claim 4 is characterized in that: also be provided with the output over-voltage protection circuit on the said circuit board, said output over-voltage protection circuit is electrically connected with said output and PWM controller respectively.
7. LED driving power according to claim 4 is characterized in that: also be provided with short-circuit protection circuit on the said circuit board, said short-circuit protection circuit is electrically connected with said output and PWM controller respectively.
8. LED driving power according to claim 4 is characterized in that: also be provided with current-limiting protection circuit on the said circuit board, said current-limiting protection circuit is electrically connected with said output and PWM controller respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204255497U CN202310226U (en) | 2011-11-01 | 2011-11-01 | LED (Light Emitting Diode) driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204255497U CN202310226U (en) | 2011-11-01 | 2011-11-01 | LED (Light Emitting Diode) driving power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202310226U true CN202310226U (en) | 2012-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204255497U Expired - Fee Related CN202310226U (en) | 2011-11-01 | 2011-11-01 | LED (Light Emitting Diode) driving power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202310226U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793342A (en) * | 2017-02-15 | 2017-05-31 | 江南大学 | A kind of long-life LED drive power based on ripple compensation |
| 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 |
-
2011
- 2011-11-01 CN CN2011204255497U patent/CN202310226U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793342A (en) * | 2017-02-15 | 2017-05-31 | 江南大学 | A kind of long-life LED drive power based on ripple compensation |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN CHUANGREN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LI DONG Effective date: 20121122 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121122 Address after: 518000 Guangdong province Shenzhen Guangming New District Gongming Street Community Mashan head third Dong Industrial Zone 31A Patentee after: Shenzhen Chuangren Technology Co., Ltd. Address before: 518000 Guangdong province Shenzhen Guangming New District Gongming Street Community Mashan head third Dong Industrial Zone 31A Patentee before: Li Dong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20141101 |
|
| EXPY | Termination of patent right or utility model |