CN205029908U - Integrated package formula LED control circuit - Google Patents
Integrated package formula LED control circuit Download PDFInfo
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- CN205029908U CN205029908U CN201520345064.5U CN201520345064U CN205029908U CN 205029908 U CN205029908 U CN 205029908U CN 201520345064 U CN201520345064 U CN 201520345064U CN 205029908 U CN205029908 U CN 205029908U
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Abstract
The utility model provides an integrated package formula LED control circuit, including power supply unit and LED the control unit, LED the control unit includes integrated package U1, integrated package U1's 1 foot and 4 feet are continuous with electric capacity C1's one end respectively, electric capacity C1's the other end links to each other with integrated package U1's 8 feet, cyclic variation's PWM control signal is applyed to integrated package U1's 5 feet to MOS pipe Q1's grid through resistance R5, MOS pipe Q1's drain electrode links to each other with resistance R3 and R4's an one end and an output of power supply unit respectively through the LED banks, MOS pipe Q1's source electrode is continuous with another output of the anodal of zener diode DZ1 and power supply unit respectively, the LED banks includes a plurality of LED emitting diode, and the resistance R1 and the R2 that concatenate with a plurality of LED emitting diode, zener diode D1's negative pole respectively with integrated package U1's 1 foot and 4 feet, resistance R3 and R4's the other end links to each other. The utility model discloses circuit structure is simple, can realize the gradually bright formula control or the gradually bright formula control of gradually going out of LED banks, still can reduce integrated circuit's manufacturing cost.
Description
Technical field
The utility model relates to a kind of control circuit, specifically a kind of manifold type LED control circuit.
Background technology
Along with the development of society, the requirement of people to quality of the life is more and more higher.Gradually lit LED lamp has unique advantage in the illuminating product of household electrical appliance or other classifications! Application such as on refrigerator: awake from sleep when the late into the night, wants that getting one glass of beverage quenches one's thirst, and generally in order to let alone household, can not go to turn on light! When refrigerator doors is opened in a flash, sleepy sleeping eyes are arrived by the thorn of refrigerator light source mercilessness, sleepiness completely without! If there is LED lamp in a refrigerator, gradually light when can open, whether can give the sensation of a kind of warmth of people! Therefore, gradually the raising of lit LED illumination control circuit to quality of the life has vital effect, also will inevitably produce far-reaching influence to the household electrical appliances market in future.
Breath light refers to and carries out gradually bright process of gradually going out by control system to LED lamp.As its name suggests, breath light is the breath rhythm according to people, is equivalent to LED gradually bright during people's air-breathing, is equivalent to LED and gradually goes out during people's expiratory air.Extinguish point in the most bright spot of air-breathing top and expiration top and LED and LED and carry out brief stay process.Be below sequential chart:
Breath light is widely used on mobile phone, and becomes one of attraction of each famous brand Mobile phone.If have untreated notice inside your mobile phone, such as missed call, note of not checking and accepting etc., breath light by secretly to bright change, so will have rhythm, plays the effect of a reminder announced as breathing.Breath light is also applied to the indicator light of computer display screen, and when computer standby, much high-end display also can make breathing indicator light, for a moment brightly goes out, to the sensation that people is very warm for a moment.After breath light adds light guide plate, just can be made into respiratory surface light source lamp, can be arranged on outdoor lamp box or other devices, not only attractive in appearance but also warm.But existing gradually bright its driving circuit structure complexity of formula LED control circuit of gradually going out, scale are large, high to the manufacture process requirement of integrated circuit, and chip area is large, and cost is high.
Summary of the invention
Technical assignment of the present utility model is for the deficiencies in the prior art, provides a kind of manifold type LED control circuit, passes through.
The utility model solves the technical scheme that its technical problem adopts:
A kind of manifold type LED control circuit, the power supply unit comprising LED control unit and be connected with LED control unit, described LED control unit comprises integrated package U1, electric capacity C1, metal-oxide-semiconductor Q1, current-limiting resistance R1 ~ R5, LED group and voltage stabilizing didoe DZ1, 1 pin of described integrated package U1 is connected with one end of electric capacity C1 respectively with 4 pin, the other end of electric capacity C1 is connected with 8 pin of integrated package U1, 5 pin of integrated package U1 are GPIO pin, periodically variable pwm control signal is applied to the grid of metal-oxide-semiconductor Q1 by current-limiting resistance R5, the drain electrode of metal-oxide-semiconductor Q1 is connected with one end of current-limiting resistance R3 with R4 and an output of power supply unit respectively through LED group, the source electrode of metal-oxide-semiconductor Q1 is connected with another output of power supply unit with the positive pole of voltage stabilizing didoe DZ1 respectively, LED group comprises the LED light-emitting diode that multiple both positive and negative polarity head and the tail are connected in series successively, and current-limiting resistance R1 and R2 to be connected in series with multiple LED light-emitting diode, the negative pole of voltage stabilizing didoe D1 respectively with 1 pin and 4 pin of integrated package U1, the other end of current-limiting resistance R3 with R4 is connected.
Above-mentioned manifold type LED control circuit also comprises one for the switch S 1 for controlling whole connecting and disconnecting of the circuit, and described integrated package U1 is controlled to export by dark to bright gradually lit pwm control signal by its corresponding software program.
Described integrated package U1 by its corresponding software program control to export by dark to bright and by bright to the dark gradually bright formula pwm control signal that gradually goes out.
Described power supply unit comprises AC power, AC power after reduction voltage circuit, current rectifying and wave filtering circuit are converted into DC power supply for LED control unit is powered.
Described power supply unit is DC power supply, and DC power supply is directly for LED control unit is powered.
The model of described integrated package U1 is SN8P2501B.
A kind of manifold type LED control circuit of the present utility model compared with prior art, the beneficial effect produced is, the utility model is using integrated package U1 as the core of control circuit, the GPIO pin of integrated package U1 applies periodically variable pwm control signal by current-limiting resistance to the grid of metal-oxide-semiconductor, to realize controlling the gradually lit of LED group or gradually bright formula control of gradually going out, its circuit structure is simple, operation and easy to use, also effectively can reduce the production cost of integrated circuit.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model embodiment one;
Accompanying drawing 2 is the structural representation of the utility model embodiment two;
Accompanying drawing 3 is the structural representation of the utility model embodiment three;
Accompanying drawing 4 is the structural representation of the utility model embodiment four.
Embodiment
Below in conjunction with accompanying drawing 1-4, a kind of manifold type LED control circuit of the present utility model is described in detail below.
Embodiment one
As shown in Figure 1, the utility model provides a kind of manifold type LED control circuit, the gradually lit that this control circuit is mainly used in LED illuminating lamp of refrigerator group controls, and its structure comprises the power supply unit that refrigerator LED illumination switch S 1 controls and the LED illumination control unit be connected with power supply unit.
Above-mentioned power supply unit comprises 220V AC power, and 220V AC power is whole circuit supply through refrigerator LED illumination switch S 1, reduction voltage circuit, current rectifying and wave filtering circuit after being converted into 12V DC power supply.
Above-mentioned LED illumination control unit comprises integrated package U1, electric capacity C1, metal-oxide-semiconductor Q1, current-limiting resistance R1 ~ R5, LED illumination lamp group and voltage stabilizing didoe DZ1.The model of integrated package U1 is SN8P2501B, 1 pin of integrated package U1 is connected with one end of electric capacity C1 respectively with 4 pin, the other end of electric capacity C1 is connected with 8 pin of integrated package U1, 5 pin of integrated package U1 are GPIO pin, its corresponding software program is coordinated by current-limiting resistance R5, grid to metal-oxide-semiconductor Q1 applies by dark to bright gradually lit pwm control signal, the drain electrode of metal-oxide-semiconductor Q1 is connected with one end of current-limiting resistance R3 with R4 and an output of 12V DC power supply respectively through LED illumination lamp group, the source electrode of metal-oxide-semiconductor Q1 is connected with another output of 12V DC power supply with the positive pole of voltage stabilizing didoe DZ1 respectively, LED illumination lamp group comprises LED LED 1 ~ LED3 that three both positive and negative polarity head and the tail are connected in series successively, and current-limiting resistance R1 and R2 to be connected in series with three LED LED 1 ~ LED3, the negative pole of voltage stabilizing didoe D1 respectively with 1 pin and 4 pin of integrated package U1, the other end of current-limiting resistance R3 with R4 is connected.
A kind of manifold type LED illumination control circuit being applicable to LED illuminating lamp of refrigerator group of the present utility model, when refrigerator doors is opened, the conducting of refrigerator LED illumination switch S 1, after the energising of LED illumination lamp group, after 1 ~ 3 second, form brightening process, after 3 seconds, LED illumination lamp group reaches normal brightness.
Embodiment two
As shown in Figure 2, the utility model provides a kind of manifold type LED control circuit, the gradually lit that this control circuit is mainly used in LED illuminating lamp of refrigerator group controls, and its structure comprises the LED illumination control unit that refrigerator LED illumination switch S 1 controls and the power supply unit be connected with LED illumination control unit.
Above-mentioned power supply unit is 12V DC power supply, and 12V DC power supply is directly whole circuit supply.
Above-mentioned LED illumination control unit comprises integrated package U1, electric capacity C1, metal-oxide-semiconductor Q1, current-limiting resistance R1 ~ R5, LED illumination lamp group and voltage stabilizing didoe DZ1.The model of integrated package U1 is SN8P2501B, 1 pin of integrated package U1 is connected with one end of electric capacity C1 respectively with 4 pin, the other end of electric capacity C1 is connected with 8 pin of integrated package U1, 5 pin of integrated package U1 are GPIO pin, its corresponding software program is coordinated by current-limiting resistance R5, grid to metal-oxide-semiconductor Q1 apply by dark to bright gradually lit pwm control signal (as), the drain electrode of metal-oxide-semiconductor Q1 is connected with one end of current-limiting resistance R3 with R4 and an output of 12V DC power supply respectively through LED illumination lamp group, the source electrode of metal-oxide-semiconductor Q1 is connected with another output of 12V DC power supply with the positive pole of voltage stabilizing didoe DZ1 respectively, LED illumination lamp group comprises LED LED 1 ~ LED3 that three both positive and negative polarity head and the tail are connected in series successively, current-limiting resistance R1 and R2 be connected in series with three LED LED 1 ~ LED3, and for controlling the refrigerator LED illumination switch S 1 of LED illumination lamp group break-make, the negative pole of voltage stabilizing didoe D1 respectively with 1 pin and 4 pin of integrated package U1, the other end of current-limiting resistance R3 with R4 is connected.
Embodiment three
As shown in Figure 3, the utility model provides a kind of manifold type LED control circuit, the gradually bright formula of gradually going out that this control circuit is mainly used in mobile phone or computer display screen LED light group controls, the LED light control unit that its structure comprises power supply unit and is connected with power supply unit.
Above-mentioned power supply unit comprises 220V AC power, and 220V AC power is whole circuit supply through reduction voltage circuit, current rectifying and wave filtering circuit after being converted into 12V DC power supply.
Above-mentioned LED light control unit comprises integrated package U1, electric capacity C1, metal-oxide-semiconductor Q1, current-limiting resistance R1 ~ R5, LED light group and voltage stabilizing didoe DZ1.The model of integrated package U1 is SN8P2501B, 1 pin of integrated package U1 is connected with one end of electric capacity C1 respectively with 4 pin, the other end of electric capacity C1 is connected with 8 pin of integrated package U1, 5 pin of integrated package U1 are GPIO pin, its corresponding software program is coordinated by current-limiting resistance R5, grid to metal-oxide-semiconductor Q1 applies by dark to bright, and by bright to the dark gradually bright formula pwm control signal that gradually goes out (as), the drain electrode of metal-oxide-semiconductor Q1 is connected with one end of current-limiting resistance R3 with R4 and an output of 12V DC power supply respectively through LED light group, the source electrode of metal-oxide-semiconductor Q1 is connected with another output of 12V DC power supply with the positive pole of voltage stabilizing didoe DZ1 respectively, LED light group comprises LED LED 1 ~ LED3 that three both positive and negative polarity head and the tail are connected in series successively, and current-limiting resistance R1 and R2 to be connected in series with three LED LED 1 ~ LED3, the negative pole of voltage stabilizing didoe D1 respectively with 1 pin and 4 pin of integrated package U1, the other end of current-limiting resistance R3 with R4 is connected.
A kind of manifold type LED control circuit being applicable to mobile phone or computer display screen LED light group of the present utility model, after powering on, LED light group was evenly lighted the time of 1.5 seconds, the complete conducting of metal-oxide-semiconductor Q1 after 1.5 seconds, between 1.5 seconds to 2 seconds, metal-oxide-semiconductor Q1 is in complete conducting, LED light group electric current reaches normal maximum size, then between 2 seconds to 3.5 seconds, LED light group electric current is by maximum continuous decrease, until 3.5 seconds time extinguish completely, between 3.5 seconds to 4.0 seconds, LED light group is in OFF state, one-period circulation terminates, within 4.0 seconds, entered brightening process again by 5.5 seconds, go down successively, unless power supply unit power-off, otherwise effect of breathing continues.
Embodiment four
As shown in Figure 4, embodiment four is with embodiment three, and difference is above-mentioned power supply unit is 12V DC power supply, and 12V DC power supply is directly whole circuit supply.
A kind of its processing and fabricating of manifold type LED illumination control circuit of the present utility model is simple and convenient, processing and fabricating shown in by specification accompanying drawing.
Except the technical characteristic described in specification, be the known technology of those skilled in the art.
Claims (5)
1. a manifold type LED control circuit, the power supply unit comprising LED control unit and be connected with LED control unit, is characterized in that,
Described LED control unit comprises integrated package U1, electric capacity C1, metal-oxide-semiconductor Q1, current-limiting resistance R1 ~ R5, LED group and voltage stabilizing didoe DZ1, and the model of integrated package U1 is SN8P2501B, 1 pin of described integrated package U1 is connected with one end of electric capacity C1 respectively with 4 pin, the other end of electric capacity C1 is connected with 8 pin of integrated package U1, 5 pin of integrated package U1 are GPIO pin, periodically variable pwm control signal is applied to the grid of metal-oxide-semiconductor Q1 by current-limiting resistance R5, the drain electrode of metal-oxide-semiconductor Q1 is connected with one end of current-limiting resistance R3 with R4 and an output of power supply unit respectively through LED group, the source electrode of metal-oxide-semiconductor Q1 is connected with another output of power supply unit with the positive pole of voltage stabilizing didoe DZ1 respectively, LED group comprises the LED light-emitting diode that multiple both positive and negative polarity head and the tail are connected in series successively, and current-limiting resistance R1 and R2 to be connected in series with multiple LED light-emitting diode, the negative pole of voltage stabilizing didoe D1 respectively with 1 pin and 4 pin of integrated package U1, the other end of current-limiting resistance R3 with R4 is connected.
2. a kind of manifold type LED control circuit according to claim 1, it is characterized in that, also comprise one for the switch S 1 for controlling whole connecting and disconnecting of the circuit, described integrated package U1 is controlled to export by dark to bright gradually lit pwm control signal by its corresponding software program.
3. a kind of manifold type LED control circuit according to claim 1, is characterized in that, described integrated package U1 by its corresponding software program control to export by dark to bright and by bright to the dark gradually bright formula pwm control signal that gradually goes out.
4. according to a kind of manifold type LED control circuit in claims 1 to 3 described in any one claim, it is characterized in that, described power supply unit comprises AC power, AC power after reduction voltage circuit, current rectifying and wave filtering circuit are converted into DC power supply for LED control unit is powered.
5. according to a kind of manifold type LED control circuit in claims 1 to 3 described in any one claim, it is characterized in that, described power supply unit is DC power supply, and DC power supply is directly for LED control unit is powered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345064.5U CN205029908U (en) | 2015-05-26 | 2015-05-26 | Integrated package formula LED control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345064.5U CN205029908U (en) | 2015-05-26 | 2015-05-26 | Integrated package formula LED control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205029908U true CN205029908U (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520345064.5U Expired - Fee Related CN205029908U (en) | 2015-05-26 | 2015-05-26 | Integrated package formula LED control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205029908U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107801275A (en) * | 2017-11-20 | 2018-03-13 | 中山驰马灯饰照明设计工程有限公司 | A kind of warm white anti-dazzling LED |
| CN111629476A (en) * | 2020-07-28 | 2020-09-04 | 广东奥马冰箱有限公司 | Refrigeration appliance LED lamp control circuit |
-
2015
- 2015-05-26 CN CN201520345064.5U patent/CN205029908U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107801275A (en) * | 2017-11-20 | 2018-03-13 | 中山驰马灯饰照明设计工程有限公司 | A kind of warm white anti-dazzling LED |
| CN111629476A (en) * | 2020-07-28 | 2020-09-04 | 广东奥马冰箱有限公司 | Refrigeration appliance LED lamp control circuit |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 |