CN103596339A - Full-chip integrated AC LED light source - Google Patents
Full-chip integrated AC LED light source Download PDFInfo
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- CN103596339A CN103596339A CN201310607977.5A CN201310607977A CN103596339A CN 103596339 A CN103596339 A CN 103596339A CN 201310607977 A CN201310607977 A CN 201310607977A CN 103596339 A CN103596339 A CN 103596339A
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Abstract
The invention relates to the illumination field, in particular to a full-chip integrated AC LED light source. The full-chip integrated AC LED light source comprises a bridge rectifier circuit, a constant current tube, multiple LED chips and a substrate. A power contract is arranged on the substrate. The input end of the bridge rectifier circuit is connected with an alternating current power supply through the power contact. The output end of the bridge rectifier circuit is electrically connected with the input end of the constant current tube. The output end of the constant current tube is electrically connected with the LED chips. The bridge rectifier circuit, the constant current tube and the LED chips are all unpacked chips and are arranged on the substrate by means of a WB technology. The substrate is an aluminum oxide ceramic substrate. According to the full-chip integrated AC LED light source, good heat dissipation performance and pressure-resistant performance can be realized, and the safety performance is more reliable.
Description
Technical field
The present invention relates to lighting field, particularly, relate to a kind of full integrated chip AC LED light source, this full integrated chip AC LED light source need not additional any element, directly uses the LED(Light Emitting Diode of High Level AC Voltage (220/230V)) full integrated chip light source.Realized DC(Direct Current) LED is to AC(Alternating Current) technological break-through of LED.
Background technology
Could be normally luminous because the LED chip in common LED light source must be supplied with suitable direct current, supply power voltage value is between 3.0-3.3V conventionally, and voltage is higher than 3.5V, and electric current can sharply increase, and causes LED to burn out.So first the alternating current AC adopting in daily life cannot must be converted to direct current DC by additional power control part by alternating current, and be converted to low pressure by high pressure directly for LED light source power supply, just can the normal operation of driving LED chip.Volume is larger like this, and cost is higher, assembling trouble.More, because power supply has been used electrochemical capacitor (the measured life-span of matter is generally 3000 hours, and price is more expensive), life-span and LED chip differ greatly, and have had a strong impact on LED illumination popularizing in domestic environments.
Summary of the invention
The object of the present invention is to provide a kind of full integrated chip AC LED light source, can drive by alternating current 220V, its chip all adopts semiconductor element, and the life-span is long, and can pass through CE Safety Approval, and Anti-surging 600V lightning test, installs simple and practical.
A kind of full integrated chip AC LED light source is provided in an embodiment of the present invention, has comprised bridge rectifier, constant current tube, a plurality of LED chip and substrate;
On substrate, be provided with power contact, the input of bridge rectifier connects AC power by power contact;
The output of bridge rectifier is electrically connected to the input of constant current tube;
The output of constant current tube is electrically connected to LED chip;
Bridge rectifier, constant current tube and LED chip are bare chip, and engage by WB(Wire Bonding routing) technology is arranged on substrate;
Described substrate is alundum (Al2O3) ceramic substrate.
The full integrated chip AC LED light source of the above embodiment of the present invention, when concrete use, the alternating current of 50-60Hz is the circuit supply on substrate by the power contact on substrate, alternating current obtains direct current after bridge rectifier rectification, constant current tube is further to after direct current current limliting, driving LED chip light emitting.
Because of the diode comprising in bridge rectifier, it (is chip nude film (die) that constant current tube and LED chip all adopt bare chip, at process plants chip out, the wafer chip that process does not encapsulate after cutting test), and engaging by WB(Wire Bonding routing) technology is arranged on substrate, so, bridge rectifier, the electronic component of the power control parts such as constant current tube can be integrated on a substrate with LED chip with very little volume, make all elements set on substrate can form an area source, realize good illuminating effect.Full integrated chip AC LED light source only includes a substrate that is provided with area source, no longer includes other independently power control part, has reduced the volume of LED light source, makes postorder easy to assembly, and shell design is more simple, and cost significantly reduces; On the other hand, substrate is alundum (Al2O3) ceramic substrate, alundum (Al2O3) ceramic substrate not only can be supported by WB technology by bare chip setting thereon, can also realize this full integrated chip AC LED light source preferably heat dispersion and withstand voltage properties, and security performance is more reliable.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the full integrated chip AC LED light source that provides of the embodiment of the present invention;
Fig. 2 is the configuration schematic diagram of the full integrated chip AC LED light source that provides of the embodiment of the present invention one;
Fig. 3 is the schematic diagram of the full integrated chip AC LED light source that provides of the embodiment of the present invention one;
Fig. 4 is the configuration schematic diagram of the full integrated chip AC LED light source that provides of the embodiment of the present invention two;
Fig. 5 is the schematic diagram of the full integrated chip AC LED light source that provides of the embodiment of the present invention two.
Embodiment
Below by specific embodiment, also by reference to the accompanying drawings the present invention is described in further detail.
Please refer to Fig. 1-5, wherein, Fig. 1 is the circuit theory diagrams of the full integrated chip AC LED light source that provides of the embodiment of the present invention; Fig. 2 is the configuration schematic diagram of the full integrated chip AC LED light source that provides of the embodiment of the present invention one; Fig. 3 is the schematic diagram of the full integrated chip AC LED light source that provides of the embodiment of the present invention one; Fig. 4 is the configuration schematic diagram of the full integrated chip AC LED light source that provides of the embodiment of the present invention two; Fig. 5 is the schematic diagram of the full integrated chip AC LED light source that provides of the embodiment of the present invention two.
This full integrated chip AC LED light source comprises: bridge rectifier 7, constant current tube 4, a plurality of LED chip 5 and substrate 8,
On substrate 8, be provided with power contact 1, the input of bridge rectifier 7 connects AC power by power contact 1;
The output of bridge rectifier 7 is electrically connected to the input of constant current tube 4;
The output of constant current tube 4 is electrically connected to LED chip 5;
The diode 3, constant current tube 4 and the LED chip 5 that form bridge rectifier 7 are bare chip, and engage by WB(Wire Bonding routing) technology is arranged on substrate 8, and WB technology is the prior art of chip process field herein, therefore do not repeat.
This full integrated chip AC LED light source comprises a plurality of LED chips 5.When actual fabrication, by changing the number of constant current tube 4 in parallel, can realize the different LED chip of driving number luminous, thereby change luminous intensity and the power of this full integrated chip AC LED light source.
Adopt above-mentioned full integrated chip AC LED light source provided by the present invention, when concrete use, the alternating current of 50-60Hz is the circuit supply on substrate by the power contact on substrate, alternating current obtains direct current after bridge rectifier rectification, constant current tube is further to after direct current current limliting, driving LED chip light emitting.
Because of the diode comprising in bridge rectifier, it (is chip nude film (die) that constant current tube and LED chip all adopt bare chip, at process plants chip out, the wafer chip that process does not encapsulate after cutting test), and engaging by WB(Wire Bonding routing) technology is arranged on substrate, so, bridge rectifier, the electronic component of the power control parts such as constant current tube can be integrated on a substrate with LED chip with very little volume, make all elements set on substrate can form an area source, realize good illuminating effect.Full integrated chip AC LED light source only includes a substrate that is provided with area source, no longer comprises other independently power control part, has realized the full integrated chip AC LED light source of full integrated chip, and it can directly be connected to live and light with alternating current on the one hand; On the other hand on the ceramic substrate of full integrated chip AC LED light source except light-emitting area, peripheral without other element, as shown in Fig. 3, Fig. 5.
In addition, substrate is alundum (Al2O3) ceramic substrate, and alundum (Al2O3) ceramic substrate not only can be supported by WB technology by bare chip setting thereon, reduce thermoresistance layer, can realize this full integrated chip AC LED light source preferably heat dispersion and withstand voltage properties, safer.
Preferably, this full integrated chip AC LED light source can also comprise TVS(Transient Voltage Suppressors) Transient Voltage Suppressor, TVS Transient Voltage Suppressor is a kind of high-effect lightening surge preventing protection device, also referred to as TVS surge protection pipe, TVS surge protection pipe 2 is bare chip, and TVS surge protection pipe 2 is arranged on substrate 8 by WB technology; TVS surge protection pipe 2 is in parallel with power contact 1.
By TVS surge protection pipe is set on substrate; when the two poles of the earth of TVS are subject to transient state high energy impact events; TVS surge protection pipe can become Low ESR by the high resistant of its two interpolar, absorbs the surge power up to multikilowatt, thereby effectively reduces the damage of lightning surge to LED chip.On the other hand, TVS surge protection pipe adopts bare chip and is arranged on substrate by WB technology, is also in order to realize the good integrated result of electronic component on substrate.
Certainly, the surge protection pipe that other any type is set on substrate is also fine, and for example, adopts MOV(Metal Oxide Varistors metal-oxide varistor) surge protection pipe.
Preferably, as Figure 2-3, a plurality of LED chips 5 of this full integrated chip AC LED light source can be divided into a plurality of LED chip groups, and each LED chip group can comprise 3-150 LED chip 5,
Wherein, each LED chip group is arranged with array way,
A plurality of LED chip groups are arranged on the middle part of a border circular areas of substrate 8; This border circular areas is positioned at the middle part of substrate 8.
Preferably, as shown in Fig. 4-5, a plurality of LED chips 5 of this full integrated chip AC LED light source are divided into a plurality of LED chip groups, and each LED chip group comprises 3-150 LED chip 5,
Wherein, each LED chip group is arranged with array way,
A plurality of LED chip groups are arranged in a circular annular region of substrate 8; This circular annular region is positioned at the middle part of substrate 8.
Can make the illuminating effect of full integrated chip AC LED light source more even arrange rounded or annular of each chip on this full integrated chip AC LED light source substrate.
Preferably, the bridge rectifier 7 of this full integrated chip AC LED light source is converted to the alternating current of 50-60Hz the Rectified alternating current of 100-120Hz, because of be people's eyes when 75Hz substantially with regard to imperceptible stroboscopic, therefore, bridge rectifier is converted to the alternating current of 50-60Hz the Rectified alternating current of 100-120Hz, can realize preferably eyeshield effect.
In a specific embodiment of the present invention, all power supply control elements adopt the bare chip of semi-conducting material to be directly encapsulated on ceramic substrate, no electrolytic capacitor, and the life-span is high, and increases coating at chip surface, to guarantee the reliable welding of Wire Bonding.Welding had both reduced thermoresistance layer like this, made its performance more reliable, made again making more simple, and price also reduces 2-3 doubly than SMD surface mount elements, and economic benefit is obvious.And full integrated chip ACLED light source only includes a substrate that is provided with area source, no longer includes other independently power control part, makes postorder easy to assembly, and shell design is also more simple.
When concrete this full integrated chip AC LED light source of use, 50-60Hz AC alternating current, by the power contact on ceramic substrate, after bridge rectifier rectification, obtains the direct current of 100-120Hz; Luminous by a plurality of LED chips of constant current tube current limliting rear drive again.On ceramic substrate, embedding, with the silica gel 6 of fluorescent material, makes blue-ray LED send white light.TVS surge protection pipe is in parallel with power contact; By the different constant current tube of number in parallel, change the power of full integrated chip AC LED light source.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. a full integrated chip AC LED light source, is characterized in that, comprising: bridge rectifier, constant current tube, a plurality of LED chip and substrate,
On described substrate, be provided with power contact, the input of described bridge rectifier connects AC power by described power contact;
The output of described bridge rectifier is electrically connected to the input of described constant current tube;
The output of described constant current tube is electrically connected to described LED chip;
Described bridge rectifier, described constant current tube and described LED chip are bare chip, and are arranged on described substrate by WB technology;
Described substrate is alundum (Al2O3) ceramic substrate.
2. full integrated chip AC LED light source according to claim 1, is characterized in that, also comprises: TVS surge protection pipe, and described TVS surge protection pipe is bare chip, described TVS surge protection pipe is arranged on described substrate by WB technology; Described TVS surge protection pipe is in parallel with described power contact.
3. full integrated chip AC LED light source according to claim 2, is characterized in that, described a plurality of LED chips are divided into a plurality of LED chip groups, and described in each, LED chip group comprises 3-150 described LED chip,
Wherein, described in each, LED chip group is arranged with array way,
Described a plurality of LED chip group is arranged on the middle part of a border circular areas of described substrate;
Described bridge rectifier, described constant current tube and described TVS surge protection pipe are positioned at the inside of described border circular areas, and are arranged on described a plurality of LED chip group around.
4. full integrated chip AC LED light source according to claim 2, is characterized in that, described a plurality of LED chips are divided into a plurality of LED chip groups, and described in each, LED chip group comprises 3-150 described LED chip,
Wherein, described in each, LED chip group is arranged with array way,
Described a plurality of LED chip group is arranged in a circular annular region of described substrate;
Described power contact is positioned at the central area of described annular;
Described bridge rectifier, described constant current tube and described TVS surge protection pipe are positioned at the inside of described circular annular region.
5. according to the full integrated chip AC LED light source described in claim 1-4, it is characterized in that, described bridge rectifier is converted to the alternating current of 50-60Hz the Rectified alternating current of 100-120Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310607977.5A CN103596339A (en) | 2013-11-25 | 2013-11-25 | Full-chip integrated AC LED light source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310607977.5A CN103596339A (en) | 2013-11-25 | 2013-11-25 | Full-chip integrated AC LED light source |
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| CN103596339A true CN103596339A (en) | 2014-02-19 |
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| CN201310607977.5A Pending CN103596339A (en) | 2013-11-25 | 2013-11-25 | Full-chip integrated AC LED light source |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104039042A (en) * | 2014-06-03 | 2014-09-10 | 佛山市金帮光电科技股份有限公司 | LED integrated encapsulation COB light source with power supply drive IC |
| CN104682731A (en) * | 2015-03-11 | 2015-06-03 | 禾邦电子（中国）有限公司 | Protection type bridge rectifier circuit and module comprising the same |
| CN106066004A (en) * | 2016-05-31 | 2016-11-02 | 鸿利智汇集团股份有限公司 | A kind of AC LED manufacture method |
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| KR20090117850A (en) * | 2008-05-10 | 2009-11-13 | 심현섭 | Led lighting system using ac power sources having constant-current supply function |
| CN201869398U (en) * | 2010-12-03 | 2011-06-15 | 贵阳世纪天元科技有限公司 | LED (light-emitting diode) lighting integrated chip |
| CN201887987U (en) * | 2010-11-30 | 2011-06-29 | 贵阳世纪天元科技有限公司 | Alternating-current and direct-current dual-purpose LED lighting circuit |
| CN102679195A (en) * | 2011-03-14 | 2012-09-19 | 英特明光能股份有限公司 | Light emitting device |
| CN203675368U (en) * | 2013-11-25 | 2014-06-25 | 深圳市红日光电有限公司 | All-chip integrated AC LED light source |
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2013
- 2013-11-25 CN CN201310607977.5A patent/CN103596339A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20090117850A (en) * | 2008-05-10 | 2009-11-13 | 심현섭 | Led lighting system using ac power sources having constant-current supply function |
| CN201887987U (en) * | 2010-11-30 | 2011-06-29 | 贵阳世纪天元科技有限公司 | Alternating-current and direct-current dual-purpose LED lighting circuit |
| CN201869398U (en) * | 2010-12-03 | 2011-06-15 | 贵阳世纪天元科技有限公司 | LED (light-emitting diode) lighting integrated chip |
| CN102679195A (en) * | 2011-03-14 | 2012-09-19 | 英特明光能股份有限公司 | Light emitting device |
| CN203675368U (en) * | 2013-11-25 | 2014-06-25 | 深圳市红日光电有限公司 | All-chip integrated AC LED light source |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104039042A (en) * | 2014-06-03 | 2014-09-10 | 佛山市金帮光电科技股份有限公司 | LED integrated encapsulation COB light source with power supply drive IC |
| CN104682731A (en) * | 2015-03-11 | 2015-06-03 | 禾邦电子（中国）有限公司 | Protection type bridge rectifier circuit and module comprising the same |
| CN106066004A (en) * | 2016-05-31 | 2016-11-02 | 鸿利智汇集团股份有限公司 | A kind of AC LED manufacture method |
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Application publication date: 20140219 |