CN202759628U - LED illuminating lamp circuit - Google Patents
LED illuminating lamp circuit Download PDFInfo
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- CN202759628U CN202759628U CN2012202390272U CN201220239027U CN202759628U CN 202759628 U CN202759628 U CN 202759628U CN 2012202390272 U CN2012202390272 U CN 2012202390272U CN 201220239027 U CN201220239027 U CN 201220239027U CN 202759628 U CN202759628 U CN 202759628U
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses an LED illuminating lamp circuit which is applied to the LED lamp illumination technology field. The circuit includes an AC-DC rectifier circuit, a constant current control circuit, and an LED module group. The AC-DC rectifier circuit includes an alternating current input terminal, an overcurrent protection device and a full-bridge rectifier circuit BD1 which are connected in order, and the full-bridge rectifier circuit BD1 can convert the input power frequency alternating current into the pulsating direct current. The constant current control circuit includes a segment biasing circuit and a pulse constant current control circuit. The LED module group includes multiple LED modules, such as high voltage LEDs, COB packaged LEDs or self-construction LED modules. The LED illuminating lamp circuit converts the input alternating current into the frequency-doubled pulsating direct current, and then converts the pulsating direct current into the segmented DC constant currents, and next outputs the segmented DC constant currents, and finally keeps the segmented DC constant currents on a stable DC constant current output, so in an illumination adjusting scheme of the LED illuminating lamp, magnetic elements are saved, electrolysis and a driving cavity are avoided, the heat dissipating capacity is small, the PF is high, the harmonic wave is low and the service lifetime is long.
Description
Technical field
The utility model relates to the LED lighting technical field, relates in particular to a kind of LED lighting lamp circuit.
Background technology
The LED(light-emitting diode, Lighting Emitting Diode) is a kind of semiconductor solid luminescence device, it is to utilize the solid semiconductor chip as luminescent material, by charge carrier compound energy of emitting surplus occurs and cause photo emissions in semiconductor, and is directly luminous.The LED illuminating product utilizes LED as the produced ligthing paraphernalia of light source exactly, there are not ultraviolet ray and infrared ray in the spectrum of led light source, heat is low and without stroboscopic, radiationless, and discarded object is recyclable, does not pollute not contain mercury element, cold light source, can safe touch, therefore belong to typical green illumination light source; In addition, LED has the advantages such as energy-saving and environmental protection, the life-span is long, volume is little, can be widely used in the fields such as various indications, demonstration, decoration, backlight, general lighting and urban landscape.
Led light source adopts DC driven, and super low-power consumption (0.03 watt-1 watt of single tube) electric light power conversion rate is near 100%, and is more energy-conservation more than 80% than conventional light source.Led light source belongs to the solid cold light source, and epoxy encapsulation does not have loosening part yet in the lamp body, does not have the easily shortcomings such as burning, heat deposition, light decay of filament light-emitting, so can reach 50,000 to 100,000 hours useful life, and is longer more than 10 times than the conventional light source life-span.
Just because of LED all adopts DC driven at present, therefore between civil power and LED, need to add a constant-current driving power supply, electric main is converted to the direct current of suitable LED, because the existence of this constant-current driving power supply, an actuator chamber of placing this constant-current driving power supply must be provided in the LED light fixture, the radiator of LED light fixture must be the column of hollow like this, and owing to being subject to the criteria limit of lamp outer casing and outward appearance, the radiator of LED light fixture all is larger and heavy at present, thereby whole light fixture can weigh much than conventional lamp, cause installation reliability and fail safe to be had a strong impact on, and the light-emitting area of light fixture also can than conventional lamp become less, above drawbacks limit popularizing and the application scenario of LED light fixture.In addition, because this constant-current driving power supply exists a large amount of electrochemical capacitors and magnetic elements to improve harmonic wave and electromagnetic compatibility problem, so often cause whole LED lamp life to shorten, Electro Magnetic Compatibility is relatively poor.And this constant-current driving power supply generally is positioned in the actuator chamber, and heater members can't directly contact with radiator, causes the heat-sinking capability of this constant-current driving power supply relatively poor, indirectly makes the reliability variation of light fixture, lifetime, deterioration of efficiency.
The utility model content
The purpose of the utility model embodiment is the defects for existing LED light fixture technology, provide a kind of for the LED lighting lamp circuit, be transformed into the Rectified alternating current of frequency multiplication by the alternating current with input, Rectified alternating current is converted to the direct current continuous current output of segmentation, the direct current continuous current of segmentation is constant in a stable direct current constant current output, realization to the LED lighting without magnetic cell, without electrolysis, without actuator chamber, little radiator, high PF, low harmonic wave, the design of high life tunable optical scheme.
In order to realize aforementioned utility model purpose, a kind of LED lighting lamp circuit that the utility model proposes is achieved through the following technical solutions:
A kind of LED lighting lamp circuit is characterized in that, described circuit comprises and connects successively the AC-DC commutating circuit, constant current control loop and LED module, wherein:
Described AC-DC commutating circuit comprise successively the ac input end that connects, protection overcurrent device, will input the full bridge rectifier BD1 that industrial-frequency alternating current is converted to Rectified alternating current;
The described constant current control loop section of comprising biasing circuit and pulse constant current control circuit;
Described pulse constant current control circuit adopts chip U1, and described LED module comprises LED module 1; Described section biasing circuit is resistance R 2; The output of described full bridge rectifier BD1 connects the input of described resistance R 2 and the input of LED module 1, the output of described LED module 1 connects pin S1, the S2 of described chip U1, any pin among the S3, the output of described resistance R 2 connects the pin ST of chip U1, and through capacitor C 1 ground connection.
Further, described LED module also comprises LED module 2, the input of described LED module 2 connects the output of described LED module 1, and the output of described LED module 2 connects pin S1, the S2 of described chip, any pin in two the remaining pins among the S3.
Further, described LED module also comprises LED module 3, and the input of described LED module 3 connects the output of described LED module 2, and the output of described LED module 3 connects pin S1, the S2 of described chip, last the remaining pin among the S3.
Compared with prior art, the LED structure of the lighting lamp of the utility model embodiment is relatively simple, nonmagnetic components and parts, and electromagnetic interference is few, and more environmental protection is safer; Without electrolysis, lamp life is high, avoids electrolyte contamination, more environmental protection; Constant-current driving power supply without traditional has saved driver, therefore, demand motive chamber not just on housing, thus be conducive to heat radiation.High PF(0.99), low harmonic wave reduces the electric network reactive-load loss, disturbs little to electrical network; Adopt the high voltage-small current technology, reduce line loss, reduce the light fixture heating, raising efficiency improves the life-span; Driving is integrated with light source, and product modular is convenient to automated production, enhances productivity and the product versatility; Compatible silicon controlled light modulation is directly replaced by traditional illumination system and is promoted to the LED illuminator, and it is convenient to change, economy, and lamp luminescence face and lighting angle and whole light fixture freedom of design in configuration are large, more can be fit to various illumination occasions.
Description of drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the utility model will become apparent and easily understand.
Fig. 1 is the circuit diagram of the LED lamp of the utility model embodiment;
Fig. 2 is the structural representation of traditional LED bulb lamp;
Fig. 3 is the Structure Comparison figure of bulb lamp of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, LED lighting of the present utility model is applicable to the LED illumination of 10W, and its concrete structure comprises:
AC-DC commutating circuit 1, constant current control loop 2 and LED module, wherein:
AC-DC commutating circuit 1, comprise successively the ac input end that connects, protection overcurrent device R 1, will input the full bridge rectifier BD1 that industrial-frequency alternating current is converted to Rectified alternating current;
Constant current control loop 2 section of comprising biasing circuits and chip U1;
Described LED module comprises several LED modules, comprises high-voltage LED, COB packaged LED or the LED module of building voluntarily.The model of chip U1 is AIC6602.
Wherein, the ac input end AC_L﹠amp of AC-DC commutating circuit 1; AC_N comprises the L﹠amp of light fixture lamp holder or specific light fixture; The N ac input end.The section biasing circuit is resistance R 2, and the input of resistance R 2 connects the output of full bridge rectifier BD1, and the output of resistance R 2 connects the pin ST of chip U1, and through capacitor C 1 ground connection.The device R 1 of protection overcurrent can be fuse, insurance resistance, piezo-resistance or other protective devices.
In the present embodiment, the LED module comprises LED module 1, LED module 2 and LED module 3.LED module 1 comprises single high-voltage LED or COB packaged LED module or its combination in any, and the input of LED module 1 connects the output of described full bridge rectifier BD1, and its output connects the pin S1 of described chip U1; LED module 2 comprises single high-voltage LED or COB packaged LED module or its combination in any, and the input of LED module 2 connects the output of described LED module 1, and its output connects the pin S2 of described chip U1; And LED module 3 also comprises single high-voltage LED or COB packaged LED module or its combination in any, and the input of LED module 3 connects the output of described LED module 2, and its output connects the pin S3 of described chip U1.
Owing to having used above technical scheme, compared with prior art, this programme is transformed into the alternating current of input by full bridge rectifier the Rectified alternating current of frequency multiplication, convert Rectified alternating current to three sections direct current continuous current outputs by DC/DC pulse constant current circuit, by the pulse constant current control circuit that three sections direct current continuous currents are constant in a stable direct current constant current output, realized to the LED lighting without magnetic cell, without electrolysis, without actuator chamber, little radiator, high PF, low harmonic wave, the design of high life.
Simultaneously, consist of the control that constant current control loop 2 is realized the LED constant current by the linear element device, therefore the thyristor regulating photosystem in the complete compatible traditional lighting so that the LED light fixture advantage of light source is higher as an alternative, also greatly reduce the capital input that light source updates simultaneously.
In addition, because this scheme realizes that the components and parts of constant current control are few, and no electrolytic capacitor, therefore and fully consist of constant current control loop 2 by the linear element device and realize that the control of LED constant current need not circuit of power factor correction and filter circuit promotes PF and reduces harmonic wave, directly realize high PF, low harmonic wave.Therefore fully can be with the direct paster of components and parts of AC-DC commutating circuit 1 and constant current control loop 2 in the light source aluminium base, thereby realized the design without actuator chamber, therefore, in the scheme without traditional constant-current driving power supply, saved driver, therefore, demand motive chamber not just on housing, thus be conducive to heat radiation.
So the radiator of LED can be designed to solid starlike radiant body, greatly strengthen spreading heat energy power, so that the radiator of LED light fixture can design is very small and exquisite, finished the realization of little radiator light fixture.In addition, because the shape of radiator can be designed to various shapes and technique not being activated the restriction in chamber, improve the aesthetics of light fixture.
Show respectively the comparison diagram of traditional bulb lamp and the utility model embodiment bulb lamp such as Fig. 2 and Fig. 3, take bulb lamp as example, its configuration aspects is described, further the advantage of outstanding this scheme.
As shown in Figure 2, traditional bulb lamp tool need to arrange actuator chamber 102 at light source panel 101, the accounted for most space at light source panel 101 back sides of actuator chamber 102, this is so that only have a small amount of space to supply with radiator 103, thereby so that radiating effect have a greatly reduced quality.
And as shown in Figure 3, the bulb lamp tool of the utility model embodiment, just the direct paster of components and parts of AC-DC commutating circuit 1 and constant current control loop 2 is in the light source aluminium base, be that light source and chip can be integrated on the panel, form light source and chip panel 104, realized the design without actuator chamber, only need a very little lead channels 105 at light source and chip panel 104 back sides, this is just so that radiator 103 has been left in nearly all space at light source and chip panel 104 back sides for, and radiator 103 can be designed to use the starlike radiation without actuator chamber, this has not only increased the thermal radiation area significantly, also greatly saved the consumption of heat sink material, thereby alleviate light fixture weight, and reduce cost.
In addition, in order further to strengthen the heat-sinking capability of light fixture, radiator adopts the form of aluminium external pressure heat-conducting plastic to be shaped, further increase the external thermal radiation capability of light fixture, alleviate light fixture weight, also so that lamp outer casing adopts insulating material to realize fully, the fail safe aspect improves greatly, stops electric leakage danger.Owing to there not being actuator chamber, and radiator adopts starlike irradiation structure, and the very strong heat-conducting plastic of external heat radianting capacity is as outer surface, and therefore, it is very small and exquisite that this radiator can design, and realized the requirement of little radiator light fixture.
Under the very small and exquisite prerequisite that radiator can be done, it is larger that the lamp luminescence face of this bulb lamp scheme just can design, and near a spherical shape, the exiting surface of LED bulb lamp has been realized wide light struck design requirement near traditional incandescent lamp.
In addition, the utility model can be widely used in the LED lighting, such as the LED bulb lamp, and LED candle lamp, LED fluorescent lamp, LED Down lamp, LED shot-light, LED ceiling light, LED Ceiling light and LED Panel light etc.Without magnetic cell, without electrolysis, without actuator chamber, little radiator, high PF, low harmonic wave, high life tunable optical (multiple dimming mode is compatible).Power factor is up to 0.99, most effectively reaches 96%, harmonic wave 10%-25%.
The utility model one of ordinary skill in the art be appreciated that; the above embodiment of the utility model only is one of preferred embodiment of the present utility model; be the length restriction; here can not all execution modes of particularize; any enforcement that can embody the utility model claim technical scheme is all in protection range of the present utility model.
It should be noted that; above content is in conjunction with concrete execution mode further detailed description of the utility model; can not assert that embodiment of the present utility model only limits to this; under above-mentioned guidance of the present utility model; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion drop in the protection range of the present utility model.
Claims (4)
1. a LED lighting lamp circuit is characterized in that, described circuit comprises and connects successively the AC-DC commutating circuit, constant current control loop and LED module, wherein:
Described AC-DC commutating circuit comprise successively the ac input end that connects, protection overcurrent device, will input the full bridge rectifier BD1 that industrial-frequency alternating current is converted to Rectified alternating current;
The described constant current control loop section of comprising biasing circuit and pulse constant current control circuit;
Described pulse constant current control circuit adopts chip U1, and described LED module comprises LED module 1; Described section biasing circuit is resistance R 2;
The output of described full bridge rectifier BD1 connects the input of described resistance R 2 and the input of LED module 1, the output of described LED module 1 connects pin S1, the S2 of described chip U1, any pin among the S3, the output of described resistance R 2 connects the pin ST of chip U1, and through capacitor C 1 ground connection.
2. LED lighting lamp circuit according to claim 1, it is characterized in that, it is characterized in that: described LED module also comprises LED module 2, the input of described LED module 2 connects the output of described LED module 1, and the output of described LED module 2 connects pin S1, the S2 of described chip, any pin in two the remaining pins among the S3.
3. LED lighting lamp circuit according to claim 2, it is characterized in that, it is characterized in that: described LED module also comprises LED module 3, the input of described LED module 3 connects the output of described LED module 2, and the output of described LED module 3 connects pin S1, the S2 of described chip, last the remaining pin among the S3.
4. LED lighting lamp circuit as claimed in claim 3 is characterized in that, described LED module 1, LED module 2, LED module 3 comprise high-voltage LED, COB packaged LED or the LED module of building voluntarily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202390272U CN202759628U (en) | 2012-05-24 | 2012-05-24 | LED illuminating lamp circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202390272U CN202759628U (en) | 2012-05-24 | 2012-05-24 | LED illuminating lamp circuit |
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| Publication Number | Publication Date |
|---|---|
| CN202759628U true CN202759628U (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012202390272U Expired - Fee Related CN202759628U (en) | 2012-05-24 | 2012-05-24 | LED illuminating lamp circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313477A (en) * | 2013-06-09 | 2013-09-18 | 易美芯光（北京）科技有限公司 | LED light source module integrated with IC (integrated circuit) drive |
| CN104837234A (en) * | 2014-02-11 | 2015-08-12 | 罗森照明股份有限公司 | Light-emitting diode driving device with dimming and flicker suppression functions |
| CN114593376A (en) * | 2021-11-25 | 2022-06-07 | 浙江凯耀照明有限责任公司 | A New Type of Driverless LED Filament Lamp |
-
2012
- 2012-05-24 CN CN2012202390272U patent/CN202759628U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313477A (en) * | 2013-06-09 | 2013-09-18 | 易美芯光（北京）科技有限公司 | LED light source module integrated with IC (integrated circuit) drive |
| CN104837234A (en) * | 2014-02-11 | 2015-08-12 | 罗森照明股份有限公司 | Light-emitting diode driving device with dimming and flicker suppression functions |
| CN114593376A (en) * | 2021-11-25 | 2022-06-07 | 浙江凯耀照明有限责任公司 | A New Type of Driverless LED Filament Lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20170524 |
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| CF01 | Termination of patent right due to non-payment of annual fee |