CN201119052Y - A LED power and current constant source integrated circuit board - Google Patents
A LED power and current constant source integrated circuit board Download PDFInfo
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- CN201119052Y CN201119052Y CNU2007201733363U CN200720173336U CN201119052Y CN 201119052 Y CN201119052 Y CN 201119052Y CN U2007201733363 U CNU2007201733363 U CN U2007201733363U CN 200720173336 U CN200720173336 U CN 200720173336U CN 201119052 Y CN201119052 Y CN 201119052Y
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Abstract
The utility model relates to a power supply used for an LED lamp, and a constant current source integrated circuit board, wherein, the anode of an LED luminophor is connected with the power supply, and the cathode connected with a Q2 and a Q3 is connected with the power supply to form a constant current source; pins 1 and 2 of a T1 are connected with positive and negative 220V, a pin 3 is connected with a pin 1 of a D1 through a RT, a pin 4 is connected with the pin 3 of the D1, the pin 2 of the D1 is connected with a pin 1 of a T2, and is connected with the pin 2 of the T2 through connected D2 and D3, the pin 2 of the T2 is connected with a pin 3 of a U2 through a Q1, the pin 5 of the T2 is connected with the pin 4 of the U2 through a D4, the pin 3 of the T2 is connected with an L1 through a D5, the pin 1 of the U2 is connected with the L1, the pins 1 and 2 are connected with a U1 through a D7, the L1 is connected with the power supply, and the U1 is connected with the power supply through a R3 to form a power supply; the circuit reduces the volume of the LED lamp, also simplifies and reduces the structure and the volume of the heat removal system, ensures the installation convenient and versatile, saves the cost and solves the problem that the cost of the LED lamp is expensive.
Description
Technical field
The utility model relates to a kind of power supply and constant-current source integrated circuit plate with semiconductor LED (the Lingt emitting diode) lamp in cross-ventilation storehouse.
Background technology
LED lamp power consumption is low, huge energy-saving effect is arranged.A 100W is 8 meters apart from ground level, and illumination is 30LUX, and light is well-illuminated to be the electricity-saving lamp of 4800LM, with the LED lamp ratio of same index, LED lamp power consumption only be electricity-saving lamp 1/5th, common tungsten lamp 1/20th to a thirtieth.LED also have the life-span long, volume is little, can design strong advantages such as (promptly realizing the random layout of illumination light).Over past ten years,, there are many countries not stint the input huge fund in the world for the potential advantages of further developing LED, aspect industrialization technology of realizing high-power, high-efficiency LED chip production technology or the like.In 1998, the U.S. started " national semiconductor lighting plan " in succession in 2000 as Japan.The project verification of China calendar year 2001 863 Program, in June, 2003 emergency start " national semiconductor lighting engineering ".Now, owing to cracked gradually and grasped in chip-count, the excitaton source of charge carrier injection generation different color and technical processs such as proportion relation, the manufacture difficulty of brightness, make the LED lamp realize the advantage that working voltage is low, usefulness is high, volume is little, stability is strong, the response time is short, color can be changeable.As the power source of LED luminous element, promptly voltage and current then is the key of LED lamp.Power supply, constant-current source are made up of many electronic devices, and the heat that they distribute in the work causes the electronic device damage, and even directly influences the system-wide service behaviour life-span.The LED lamp of former instinct operate as normal more than 50,000 hours just can't be discharged because of high heat in the work, be difficult to break through 10,000 hours in actual applications, and the hundreds of of can only working that has is hour just no longer luminous.For solve heat that the LED lamp come out and the heat that comes out for LED illuminating circuit system in luminescence process, basically all be that power supply, constant-current source, LED are divided into three partly assemblings to the above high-powered LED lamp of 10W in the world at present, spread heat is handled.On the solution heat dissipation problem, nearly all adopt the way of dispelling the heat by fin in the arc mode at the back side of LED luminous element.Make volume very big and weight is very heavy in order to reach certain area of dissipation.Not only the cost height uses inconvenience, and volume is big, also fundamentally solves as how enough area of dissipations or radiating mode and realizes that whole circuit is in the problem of working under the normal temperature.This defective has limited the extensive use of LED lamp to a great extent.This is to cause the LED lamp particularly high-powered LED lamp can not widespread usage and one of the reason of popularization.Former two is that the LED lamp costs an arm and a leg therefore, this is because LED luminous element self price height, in addition in light fixture manufacturing and assembling process for reducing heat build-up then with power supply with constant-current source independently is made and assemble, cost of manufacture height not only, the special installation apparatus of employing also makes and holds at high price.
The utility model content
The purpose of this utility model is the power supply and the constant-current source integrated circuit plate of a kind of LED of being used for lamp of design, be convenient to the heat dissipating method that the LED lamp uses the air flows storehouse, heat is focused on, reduce the volume of LED lamp, reduce cost of manufacture, solve the power supply and the difficult problem of constant-current source heat radiation of LED lamp in limited range.
Power supply and constant-current source integrated circuit plate are made of constant-current source and power supply two parts circuit;
Constant-current source circuit is as follows:
1 pin of resistance R 2 is connected with the positive pole of LED luminous element, and is connected with+24V positive source; 2 pin of resistance R 2 are connected with the tie point of 1 pin of 2 pin of triode Q2 and triode Q3; 1 pin of triode Q2 is connected the back and is connected with 3 pin of triode Q3 with 1 pin of resistance R 6,1 pin of resistance R 7 is connected with the tie point of 3 pin of 1 pin of triode Q2 and triode Q3; 2 pin ground connection of 3 pin of triode Q2,2 pin of resistance R 6, resistance R 7; 2 pin of triode Q3 are connected with the negative pole of LED luminous element;
Power circuit as:
1 pin of capacitor C 1 is connected with civil power+220V with 1 pin of eddy current circle T1 respectively; 2 pin of capacitor C 1 are connected with civil power-220V with 2 pin of eddy current circle T1 respectively; 3 pin of eddy current circle T1 are connected with 1 pin of temperature and resistance RT; 2 pin of temperature and resistance RT are connected with 1 pin of rectifier D1; 4 pin of eddy current circle T1 are connected with 3 pin of rectifier D1; The 4 pin ground connection of rectifier D1; Be connected 2 pin ground connection of capacitor C 2 with 1 pin of capacitor C 2 behind 2 pin of the 2 pin connection voltage-stabiliser tube D2 of rectifier D1 and 1 pin of transformer T2; 1 pin of voltage-stabiliser tube D2 is connected with 2 pin of fast recovery diode D3; Be connected with 1 pin of pulse width modulated inverter Q1 behind 2 pin of the 1 pin connection transformer T2 of fast recovery diode D3; The 2 pin ground connection of pulse width modulated inverter Q1; Be connected the 2 pin ground connection of diode D6 with 1 pin of diode D6 behind 3 pin that 3 pin of pulse width modulated inverter Q1 connect optocoupler U2 and the tie point of 1 pin of resistance R 5; 2 pin of resistance R 5 connect 1 pin of capacitor C 8; 2 pin of 2 pin of capacitor C 8,1 pin of capacitor C 7, capacitor C 5, the 6 pin ground connection of transformer T2; 3 pin of transformer T2 are connected with 1 pin of fast recovery diode D5; 2 pin of fast recovery diode D5 are connected with 1 pin of 1 pin of capacitor C 3, L1,1 pin of optocoupler U2,1 pin of diode D7; 2 pin ground connection of 4 pin of transformer T2,2 pin of capacitor C 3, capacitor C 4; 5 pin of transformer T2 are connected with 1 pin of diode D4; 4 pin of 2 pin of diode D4,1 pin of capacitor C 5, optocoupler U2 connect; 2 pin ground connection of 6 pin of transformer T2, capacitor C 5; 2 pin of optocoupler U2 are connected with an end of resistance R 1; 1 pin of 3 pin of the other end of resistance R 1, voltage reference U1,2 pin of diode D7, capacitor C 6 connects; 2 pin of 2 pin of voltage reference U1,2 pin of capacitor C 7, resistance R 4 are connected with ground; . be connected with 2 pin of resistance R 3 behind 2 pin of the 1 pin connection capacitor C 6 of voltage reference U1 and 1 pin of resistance R 4; 2 pin of inductance L 1 connect 1 pin of resistance R 3 and 1 pin of capacitor C 4 is connected, and are connected 2 pin ground connection of capacitor C 4 with+24V positive source again.
Power supply and constant-current source integrated circuit plate that this circuit is formed are placed in the place position that is made of heating panel, the air flows storehouse that constitutes by heating panel and radiating shell, the cooling system that air flow passage and circulation of air hole and air manhole appendix constitute surrounds it wherein, because outside cold air enters this cooling system, the heat that power supply and constant-current source integrated circuit shed is taken out of outside the housing through after the heat exchange, because the convection current of air, constantly hot gas is taken out of, heat can be along with the build-up effect of the increase of operating time when luminous effectively to have controlled the LED lamp, improved the useful life of electric elements, simultaneously because power supply and constant-current source are integrated, not only dwindled the volume of LED lamp, also dwindled the volume of cooling system, made easy for installation, general, save cost, solved the expensive problem of LED lamp cost.
Description of drawings
Fig. 1 LED lamp power supply and constant-current source integrated circuit figure.
Concrete real-time mode
Constant-current source circuit is as follows:
1 pin of resistance R 2 is connected with the positive pole of LED luminous element, and is connected with+24V positive source; 2 pin of resistance R 2 are connected with the tie point of 1 pin of 2 pin of triode Q2 and triode Q3; 1 pin of triode Q2 is connected the back and is connected with 3 pin of triode Q3 with 1 pin of resistance R 6,1 pin of resistance R 7 is connected with the tie point of 3 pin of 1 pin of triode Q2 and triode Q3; 2 pin ground connection of 3 pin of triode Q2,2 pin of resistance R 6, resistance R 7; 2 pin of triode Q3 are connected with the negative pole of LED luminous element;
Power circuit is as follows:
1 pin of capacitor C 1 is connected with civil power+220V with 1 pin of eddy current circle T1 respectively; 2 pin of capacitor C 1 are connected with civil power-220V with 2 pin of eddy current circle T1 respectively; 3 pin of eddy current circle T1 are connected with 1 pin of temperature and resistance RT; 2 pin of temperature and resistance RT are connected with 1 pin of rectifier D1; 4 pin of eddy current circle T1 are connected with 3 pin of rectifier D1; The 4 pin ground connection of rectifier D1; Be connected 2 pin ground connection of capacitor C 2 with 1 pin of capacitor C 2 behind 2 pin of the 2 pin connection voltage-stabiliser tube D2 of rectifier D1 and 1 pin of transformer T2; 1 pin of voltage-stabiliser tube D2 is connected with 2 pin of fast recovery diode D3; Be connected with 1 pin of pulse width modulated inverter Q1 behind 2 pin of the 1 pin connection transformer T2 of fast recovery diode D3; The 2 pin ground connection of pulse width modulated inverter Q1; Be connected the 2 pin ground connection of diode D6 with 1 pin of diode D6 behind 3 pin that 3 pin of pulse width modulated inverter Q1 connect optocoupler U2 and the tie point of 1 pin of resistance R 5; 2 pin of resistance R 5 connect 1 pin of capacitor C 8; 2 pin of 2 pin of capacitor C 8,1 pin of capacitor C 7, capacitor C 5, the 6 pin ground connection of transformer T2; 3 pin of transformer T2 are connected with 1 pin of fast recovery diode D5; 2 pin of fast recovery diode D5 are connected with 1 pin of 1 pin of capacitor C 3, L1,1 pin of optocoupler U2,1 pin of diode D7; 2 pin ground connection of 4 pin of transformer T2,2 pin of capacitor C 3, capacitor C 4; 5 pin of transformer T2 are connected with 1 pin of diode D4; 4 pin of 2 pin of diode D4,1 pin of capacitor C 5, optocoupler U2 connect; 2 pin ground connection of 6 pin of transformer T2, capacitor C 5; 2 pin of optocoupler U2 are connected with an end of resistance R 1; 1 pin of 3 pin of the other end of resistance R 1, voltage reference U1,2 pin of diode D7, capacitor C 6 connects; 2 pin of 2 pin of voltage reference U1,2 pin of capacitor C 7, resistance R 4 are connected with ground; . be connected with 2 pin of resistance R 3 behind 2 pin of the 1 pin connection capacitor C 6 of voltage reference U1 and 1 pin of resistance R 4; 2 pin of inductance L 1 connect 1 pin of resistance R 3 and 1 pin of capacitor C 4 is connected, and are connected 2 pin ground connection of capacitor C 4 with+24V positive source again.
Wherein: power supply: C1 (electric capacity 104), T1 (eddy current circle), RT (temperature and resistance), D1 (rectifier IBQ20), C2 (electric capacity 10 μ F/400v), D2 (voltage-stabiliser tube P6KE200), D3 (fast recovery diode BYV26), T2 (transformer), Q1 (pulse width modulated inverter TOP223), D4 (diode IN4148), D5 ((fast recovery diode BYV28), D6 (diode IN4148), C3 (electric capacity 220 μ F/35v), C4 (electric capacity 220 μ F/35v), C5 (electric capacity 104), C5 (electric capacity 104), C (electric capacity 102 μ F/1000v), C8 (electric capacity 47 μ F/16v), R5 (resistance), U1 (voltage reference TL431), U2 (optocoupler TLP181), D7 (diode DIODE) L1 (inductance 27 μ H), R1 (resistance), R3 resistance), R4 (resistance) forms.
2, constant-current source: by R2 (resistance), R6 resistance), R7 (resistance), Q2 (triode 2N2222), Q3 (triode 880) forms.
Claims (1)
1. a power supply and constant-current source integrated circuit plate that is used for the LED lamp is characterized in that:
Constant-current source circuit is as follows:
1 pin of resistance R 2 is connected with the positive pole of LED luminous element, and is connected with+24V positive source; 2 pin of resistance R 2 are connected with the tie point of 1 pin of 2 pin of triode Q2 and triode Q3; 1 pin of triode Q2 is connected the back and is connected with 3 pin of triode Q3 with 1 pin of resistance R 6,1 pin of resistance R 7 is connected with the tie point of 3 pin of 1 pin of triode Q2 and triode Q3; 2 pin ground connection of 3 pin of triode Q2,2 pin of resistance R 6, resistance R 7; 2 pin of triode Q3 are connected with the negative pole of LED luminous element;
Power circuit is as follows:
1 pin of capacitor C 1 is connected with civil power+220V with 1 pin of eddy current circle T1 respectively; 2 pin of capacitor C 1 are connected with civil power-220V with 2 pin of eddy current circle T1 respectively; 3 pin of eddy current circle T1 are connected with 1 pin of temperature and resistance RT; 2 pin of temperature and resistance RT are connected with 1 pin of rectifier D1; 4 pin of eddy current circle T1 are connected with 3 pin of rectifier D1; The 4 pin ground connection of rectifier D1; Be connected 2 pin ground connection of capacitor C 2 with 1 pin of capacitor C 2 behind 2 pin of the 2 pin connection voltage-stabiliser tube D2 of rectifier D1 and 1 pin of transformer T2; 1 pin of voltage-stabiliser tube D2 is connected with 2 pin of fast recovery diode D3; Be connected with 1 pin of pulse width modulated inverter Q1 behind 2 pin of the 1 pin connection transformer T2 of fast recovery diode D3; The 2 pin ground connection of pulse width modulated inverter Q1; Be connected the 2 pin ground connection of diode D6 with 1 pin of diode D6 behind 3 pin that 3 pin of pulse width modulated inverter Q1 connect optocoupler U2 and the tie point of 1 pin of resistance R 5; 2 pin of resistance R 5 connect 1 pin of capacitor C 8; 2 pin of 2 pin of capacitor C 8,1 pin of capacitor C 7, capacitor C 5, the 6 pin ground connection of transformer T2; 3 pin of transformer T2 are connected with 1 pin of fast recovery diode D5; 2 pin of fast recovery diode D5 are connected with 1 pin of 1 pin of capacitor C 3, L1,1 pin of optocoupler U2,1 pin of diode D7; 2 pin ground connection of 4 pin of transformer T2,2 pin of capacitor C 3, capacitor C 4; 5 pin of transformer T2 are connected with 1 pin of diode D4; 4 pin of 2 pin of diode D4,1 pin of capacitor C 5, optocoupler U2 connect; 2 pin ground connection of 6 pin of transformer T2, capacitor C 5; 2 pin of optocoupler U2 are connected with an end of resistance R 1; 1 pin of 3 pin of the other end of resistance R 1, voltage reference U1,2 pin of diode D7, capacitor C 6 connects; 2 pin of 2 pin of voltage reference U1,2 pin of capacitor C 7, resistance R 4 are connected with ground; . be connected with 2 pin of resistance R 3 behind 2 pin of the 1 pin connection capacitor C 6 of voltage reference U1 and 1 pin of resistance R 4; 2 pin of inductance L 1 connect 1 pin of resistance R 3 and 1 pin of capacitor C 4 is connected, and are connected 2 pin ground connection of capacitor C 4 with+24V positive source again.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201733363U CN201119052Y (en) | 2007-09-25 | 2007-09-25 | A LED power and current constant source integrated circuit board |
| PCT/CN2008/000375 WO2009039715A1 (en) | 2007-09-25 | 2008-02-21 | A heat dissipating method for led lamp by use of air pressure and wind tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201733363U CN201119052Y (en) | 2007-09-25 | 2007-09-25 | A LED power and current constant source integrated circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201119052Y true CN201119052Y (en) | 2008-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201733363U Expired - Fee Related CN201119052Y (en) | 2007-09-25 | 2007-09-25 | A LED power and current constant source integrated circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201119052Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011082670A1 (en) * | 2010-01-07 | 2011-07-14 | Liu Changgui | Led daylight lamp |
| CN103856092A (en) * | 2014-02-21 | 2014-06-11 | 清华大学 | Secondary inversion recrudescence arc voltage generating circuit of polarity-changing welding power supply and application of secondary inversion recrudescence arc voltage generating circuit |
-
2007
- 2007-09-25 CN CNU2007201733363U patent/CN201119052Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011082670A1 (en) * | 2010-01-07 | 2011-07-14 | Liu Changgui | Led daylight lamp |
| CN103856092A (en) * | 2014-02-21 | 2014-06-11 | 清华大学 | Secondary inversion recrudescence arc voltage generating circuit of polarity-changing welding power supply and application of secondary inversion recrudescence arc voltage generating circuit |
| CN103856092B (en) * | 2014-02-21 | 2016-09-21 | 清华大学 | The secondary inverting of variable polarity welding power supply burning voltage again produces circuit |
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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: 20080917 Termination date: 20091026 |