CN204836663U - High pressure EL lamp driving circuit based on SP4403 driver chip - Google Patents
High pressure EL lamp driving circuit based on SP4403 driver chip Download PDFInfo
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- CN204836663U CN204836663U CN201520461405.5U CN201520461405U CN204836663U CN 204836663 U CN204836663 U CN 204836663U CN 201520461405 U CN201520461405 U CN 201520461405U CN 204836663 U CN204836663 U CN 204836663U
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Abstract
The utility model discloses a high pressure EL lamp driving circuit based on SP4403 driver chip, specific circuit design include interconnect's SP4403 driver chip, resistance, and the inductance, the diode, it is first to third resistance and high -pressure EL lamp. The utility model discloses simple structure, control performance is stable, low cost, application scope is extensive.
Description
Technical field
The utility model discloses a kind of high pressure EL lamp drive circuit based on SP4403 driving chip, relate to power electronic equipment technical field.
Background technology
Cold light lamp adopts 21 century following principal light source material cold light panel.Cold light (EL) full name electroluminescence (ElectroLuminescent), the phenomenon of its to be a kind of converting electrical energy be luminous energy, produces light source in conjunction with many kinds of substance, the low temperature light source that it can not generate heat in the process of running.Because its power is little, illumination is high, colour temperature does not produce heat energy time good, luminous substantially, people also from the energy-conservation angle with health, to its hat with diminutive: " green illumination lamp ".In the modern times, it is applied to the every field of society at a terrific speed and enters huge numbers of families.
Cold light lamp divides two kinds, and one is that (standard type) can not light modulation, and another kind is (DMX) adjustable light type.The aspects such as cold light lamp is mainly used in meeting room, engineering, use also very convenient.
Cold light lamp is a kind of small-power tungsten halogen lamp, and between 25-50W, assembling reflection shield throws light on towards certain orientation, emits white light, and be used in decorative lighting occasion in a large number and arrange as show window or StoreFront, low-tension supply, with electronic transformer as lamp power supply.Light fixture turns to developing direction with diversification, miniaturization, Portable energy-saving, adopts light light source three-color fluorescent lamp.TV cold light lamp is exactly a kind of in base.
Cold light lamp is flat film (an all neat and well spaced luminescence) cold light source of a kind of advanced person, ultra-thin (thickness 0.2mm), volume little it can produce any size and figure, high resilience, flexible, paste and hang, brightness-adjustable, it is power saving very, and it is easy to carry not produce any heat energy time luminous, anti-crushing, can curl, application is simple, alternating current-direct current, environmental protection and energy saving, green product light is soft, not dazzling, can not damage the eyes of people, color is various, multiple color, be applicable to different grade Man's Demands (particularly convenient to protanopia anerythrochloropsia person).
Existing cold light lamp drive circuit, project organization is complicated, the poor stability of driving, also has the space of improving further.
Summary of the invention
Technical problem to be solved in the utility model is: for the defect of prior art, provides a kind of high pressure EL lamp drive circuit based on SP4403 driving chip.
The utility model is for solving the problems of the technologies described above by the following technical solutions:
Based on a high pressure EL lamp drive circuit for SP4403 driving chip, comprise SP4403 driving chip, resistance, inductance, diode, the first to the 3rd resistance and high pressure EL lamp, wherein,
The external enable control signal end of pin 1 of described SP4403 driving chip, pin 2 ground connection of SP4403 driving chip, the pin 3 of SP4403 driving chip respectively with one end of inductance, the positive pole of diode is connected, the other end of inductance respectively with the pin 6 of SP4403 driving chip, one end of resistance, one end of first electric capacity is connected, the other end ground connection of the first electric capacity, the other end of resistance respectively with one end of the second electric capacity, the pin 8 of SP4403 driving chip is connected, the other end ground connection of the second electric capacity, the pin 4 of SP4403 driving chip is connected with one end of high pressure EL lamp, the other end of high pressure EL lamp is connected with the pin 5 of SP4403 driving chip, the pin seven of SP4403 driving chip respectively with the negative pole of diode, one end of 3rd electric capacity is connected, the other end ground connection of the 3rd electric capacity.
As further preferred version of the present utility model, the pin 6 of described SP4403 driving chip is also connected with Input voltage terminal, and the input voltage of Input voltage terminal is 1.8-6 volt.
As further preferred version of the present utility model, the concrete model of described diode is IN4148.
As further preferred version of the present utility model, the size of described resistance is 150 kilo-ohms.
As further preferred version of the present utility model, the concrete model of described inductance is 470 μ H/12 Ω.
As further preferred version of the present utility model, described first electric capacity and the 3rd electric capacity are polar capacitor.
The utility model adopts above technical scheme compared with prior art, has following technique effect: the utility model structure is simple, and control performance is stablized, and with low cost, applicable situation is extensive.
Accompanying drawing explanation
Fig. 1 is circuit connection diagram of the present utility model,
Wherein: R is resistance, L is inductance, and D is diode, and C1 to C3 is respectively the first to the 3rd resistance, and E is high pressure EL lamp.
Embodiment
Be described below in detail execution mode of the present utility model, the example of described execution mode is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the execution mode be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail:
As shown in Figure 1, the described high pressure EL lamp drive circuit based on SP4403 driving chip, comprises SP4403 driving chip, resistance, inductance, diode to circuit connection diagram of the present utility model, the first to the 3rd resistance and high pressure EL lamp, wherein,
The external enable control signal end of pin 1 of described SP4403 driving chip, pin 2 ground connection of SP4403 driving chip, the pin 3 of SP4403 driving chip respectively with one end of inductance, the positive pole of diode is connected, the other end of inductance respectively with the pin 6 of SP4403 driving chip, one end of resistance, one end of first electric capacity is connected, the other end ground connection of the first electric capacity, the other end of resistance respectively with one end of the second electric capacity, the pin 8 of SP4403 driving chip is connected, the other end ground connection of the second electric capacity, the pin 4 of SP4403 driving chip is connected with one end of high pressure EL lamp, the other end of high pressure EL lamp is connected with the pin 5 of SP4403 driving chip, the pin seven of SP4403 driving chip respectively with the negative pole of diode, one end of 3rd electric capacity is connected, the other end ground connection of the 3rd electric capacity.
In a specific embodiment of the present utility model, the pin 6 of described SP4403 driving chip is also connected with Input voltage terminal, and the input voltage of Input voltage terminal is 1.8-6 volt; The concrete model of described diode is IN4148; The size of described resistance is 150 kilo-ohms; The concrete model of described inductance is 470 μ H/12 Ω; Described first electric capacity and the 3rd electric capacity are polar capacitor.
SP4403 is a high pressure EL lamp driver that sipex company produces.Its input voltage is direct current 1.8 ~ 6v, exports as ac high-voltage, is exclusively used in and drives the back lighting high pressure EL lamp drive circuit such as LCD, portable digital processor.
SP4403 can provide the supply voltage of more than 160P, is specially adapted to drive cold light film lamp.It only needs the inductance of an external 470pH to produce high pressure, and an external resistance just can regulate the frequency of oscillator, and the electric current of stopped status is less than 110hA.SP4403 inside comprises a DC/AC converter, and the ac output voltage that it can produce the highest about 220Vp-p drives the EL fluorescent tube needing high voltage supply.SP4403 has 8 pin PSOIC and SOP.8, two kinds of packing forms.
The SP4403 that the utility model adopts can be widely used in PDA, beep-pager, mobile phone and other need use in the more weak occasion of light and adopt in the low power portable product of hand-hold type of lcd screen.
Cold light lamp structure is light, kind is easily selected, and erecting by overhang is convenient, install simple, be adapted at working in any environment, not only can have an arteries and veins of one's own, but also other light fixture compatibilities that can be identical with colour temperature is with it coordinated; Both be applicable to indoor, and be also applicable to outdoor shooting, the fluorescent tube that only needs the more corresponding colour temperature of adapted just, achieves the lamp integrated of inside and outside scape; Yin Luli consumes little, in the place that power supply capacity is limited, and its advantage extremely aobvious; Both can control without Control Console, work of directly connecting with the mains, also can as required, access Control Console program control system accepts control.
By reference to the accompanying drawings execution mode of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned execution mode, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solutions of the utility model content, according to technical spirit of the present utility model, within spirit of the present utility model and principle, to any simple amendment that above embodiment is done, equivalent replacement and improvement etc., within the protection range all still belonging to technical solutions of the utility model.
Claims (6)
1. based on a high pressure EL lamp drive circuit for SP4403 driving chip, it is characterized in that: comprise SP4403 driving chip, resistance, inductance, diode, the first to the 3rd resistance and high pressure EL lamp, wherein,
The external enable control signal end of pin 1 of described SP4403 driving chip, pin 2 ground connection of SP4403 driving chip, the pin 3 of SP4403 driving chip respectively with one end of inductance, the positive pole of diode is connected, the other end of inductance respectively with the pin 6 of SP4403 driving chip, one end of resistance, one end of first electric capacity is connected, the other end ground connection of the first electric capacity, the other end of resistance respectively with one end of the second electric capacity, the pin 8 of SP4403 driving chip is connected, the other end ground connection of the second electric capacity, the pin 4 of SP4403 driving chip is connected with one end of high pressure EL lamp, the other end of high pressure EL lamp is connected with the pin 5 of SP4403 driving chip, the pin seven of SP4403 driving chip respectively with the negative pole of diode, one end of 3rd electric capacity is connected, the other end ground connection of the 3rd electric capacity.
2. a kind of high pressure EL lamp drive circuit based on SP4403 driving chip as claimed in claim 1, it is characterized in that: the pin 6 of described SP4403 driving chip is also connected with Input voltage terminal, the input voltage of Input voltage terminal is 1.8-6 volt.
3. a kind of high pressure EL lamp drive circuit based on SP4403 driving chip as claimed in claim 1, is characterized in that: the concrete model of described diode is IN4148.
4. a kind of high pressure EL lamp drive circuit based on SP4403 driving chip as claimed in claim 1, is characterized in that: the size of described resistance is 150 kilo-ohms.
5. a kind of high pressure EL lamp drive circuit based on SP4403 driving chip as claimed in claim 1, is characterized in that: the concrete model of described inductance is 470 μ H/12 Ω.
6. a kind of high pressure EL lamp drive circuit based on SP4403 driving chip as claimed in claim 1, is characterized in that: described first electric capacity and the 3rd electric capacity are polar capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520461405.5U CN204836663U (en) | 2015-06-30 | 2015-06-30 | High pressure EL lamp driving circuit based on SP4403 driver chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520461405.5U CN204836663U (en) | 2015-06-30 | 2015-06-30 | High pressure EL lamp driving circuit based on SP4403 driver chip |
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| CN204836663U true CN204836663U (en) | 2015-12-02 |
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| CN201520461405.5U Expired - Fee Related CN204836663U (en) | 2015-06-30 | 2015-06-30 | High pressure EL lamp driving circuit based on SP4403 driver chip |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104968104A (en) * | 2015-06-30 | 2015-10-07 | 傅明尧 | High voltage EL lamp drive circuit based on SP4403 drive chip |
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2015
- 2015-06-30 CN CN201520461405.5U patent/CN204836663U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104968104A (en) * | 2015-06-30 | 2015-10-07 | 傅明尧 | High voltage EL lamp drive circuit based on SP4403 drive chip |
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| Date | Code | Title | Description |
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| 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: 20151202 Termination date: 20170630 |
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| CF01 | Termination of patent right due to non-payment of annual fee |