CN204157141U - Based on the multistage aperture LED control circuit of CRC π type filtering - Google Patents
Based on the multistage aperture LED control circuit of CRC π type filtering Download PDFInfo
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- CN204157141U CN204157141U CN201420661762.1U CN201420661762U CN204157141U CN 204157141 U CN204157141 U CN 204157141U CN 201420661762 U CN201420661762 U CN 201420661762U CN 204157141 U CN204157141 U CN 204157141U
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Abstract
The utility model discloses a kind of multistage aperture LED control circuit based on the filtering of CRC π type, multistage aperture LED comprises at least two ring-type LED-baseplate (1), and each ring-type LED-baseplate (1) stretches out successively; The ac input end of described AC-DC converter connects mains supply, the DC output end of AC-DC converter is connected with one end of resistance R, the other end of resistance R is connected with the power input of single pole multiple throw, electric capacity C1 and electric capacity C2 is connected in parallel on the two ends of resistance R respectively, and electric capacity C1 and electric capacity C2 altogether; The enable signal input connecting valve drive singal of single pole multiple throw, the output of single pole multiple throw is connected with each LED string respectively.The AC ripple ripple coefficient that the utility model CRC π type filter circuit exports after effectively can reducing AC-DC conversion, makes the output of DC source more smooth-going; Support the adjustment of multistage different radii aperture, can need the luminous aperture of free adjustment according to user, illuminating effect is good and effectively can reduce electric energy loss.
Description
Technical field
The utility model relates to a kind of multistage aperture LED control circuit based on the filtering of CRC π type.
Background technology
Comparatively conventional incandescent and electricity-saving lamp have energy-conserving and environment-protective to LED, long service life, employing solid encapsulation be convenient to the advantages such as transport and installation, under the guide of the strategy of sustainable development, energy-saving and emission-reduction thought is constantly promoted, current country more and more payes attention to lighting energy saving and environmental issue, carrying out energetically using LED bulb, along with the development of LED technology, electricity-saving lamp and incandescent lamp will be replaced by LED in the near future.LED is in application placed in the middle also more and more extensively, has been widely used in pendent lamp, ceiling light, bathroom lamp, cabinet lamp etc. at present.
Because rectification effect is limited, the power supply of traditional LED lamp is easily mingled with interchange, and export smooth-going not, the stability of photoluminescence of LED is poor and fragile.And usually can only realize overall Kai Heguan, optionally cannot light the bulb of certain part specified quantity, easily cause the waste of electric energy.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of multistage aperture LED control circuit based on the filtering of CRC π type that can carry out effective filtering to DC source, that support multistage different radii aperture to regulate.
The purpose of this utility model is achieved through the following technical solutions: based on the multistage aperture LED control circuit of CRC π type filtering, comprise AC-DC converter, CRC π type filter circuit, single pole multiple throw and multistage aperture LED, described multistage aperture LED comprises at least two ring-type LED-baseplate, each ring-type LED-baseplate stretches out successively, each ring-type LED-baseplate is provided with a LED string, each LED string comprises multiple LED bulb; The ac input end of described AC-DC converter connects mains supply, the DC output end of AC-DC converter is connected with one end of resistance R, the other end of resistance R is connected with the power input of single pole multiple throw, electric capacity C1 and electric capacity C2 is connected in parallel on the two ends of resistance R respectively, and electric capacity C1 and electric capacity C2 altogether; The enable signal input connecting valve drive singal of single pole multiple throw, the output of single pole multiple throw is connected with each LED string respectively.
The surface of described ring-type LED-baseplate is provided with reflector.
Described LED string is made up of the blue-ray LED bulb of spaced setting and red-light LED bulb.
The beneficial effects of the utility model are:
1) CRC π type filter circuit effectively can reduce the rear AC ripple ripple coefficient exported of AC-DC conversion, makes the output of DC source more smooth-going;
2) support the adjustment of multistage different radii aperture, can need the luminous aperture of free adjustment according to user, illuminating effect is good and effectively can reduce electric energy loss;
3) reflector that LED-baseplate surface is arranged effectively can strengthen illumination intensity, improves luminous efficiency;
4) adopt single pole multiple throw to realize multi channel selecting, structure is simple and stability is strong, long service life;
5) each LED string is made up of spaced blue-ray LED bulb and red-light LED bulb, effectively can improve the color rendering index of light source, reduces light decay.
Accompanying drawing explanation
Fig. 1 is the utility model circuit structure block diagram;
Fig. 2 is the utility model multistage aperture LED lamp structure schematic diagram;
In figure, 1-ring-type LED-baseplate, 2-LED bulb.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection range of the present utility model is not limited to the following stated.
As shown in Figure 1 and Figure 2, based on the multistage aperture LED control circuit of CRC π type filtering, comprise AC-DC converter, CRC π type filter circuit, single pole multiple throw and multistage aperture LED, described multistage aperture LED comprises at least two ring-type LED-baseplate 1, each ring-type LED-baseplate 1 stretches out successively, each ring-type LED-baseplate 1 is provided with a LED string, each LED string comprises multiple LED bulb 2, LED string is made up of the blue-ray LED bulb of spaced setting and red-light LED bulb, effectively can improve the color rendering index of light source, reduce light decay.
The ac input end of described AC-DC converter connects mains supply, the DC output end of AC-DC converter is connected with one end of resistance R, the other end of resistance R is connected with the power input of single pole multiple throw, electric capacity C1 and electric capacity C2 is connected in parallel on the two ends of resistance R respectively, and electric capacity C1 and electric capacity C2 altogether; The CRC π type filter circuit that DC power signal consists of resistance R, electric capacity C1, electric capacity C2, power supply signal is through the most interchange clutter of filtering filtering of C1, voltage after C1 is added in the RC filter circuit of R and C2 formation, C2 carries out filtering to alternating component further, C1 capacitive reactance is very little, High-frequency Interference composition easily switches to ground by small capacitances C1, fine to high-frequency ac interference filter effect, C2 capacity is large, what flow through C2 is low-frequency ac composition, also fine to low-frequency ac interference filter effect.
The enable signal input connecting valve drive singal of single pole multiple throw, the output of single pole multiple throw is connected with each LED string respectively.Can control single pole multiple throw gating by switching drive signal, the corresponding LED string of conducting, thus achieve the control of multistage aperture, the LED string luminescence of different iris radius can form different illuminating effects.
In the present embodiment, the surface of described ring-type LED-baseplate 1 is provided with reflector, can increase luminous efficiency.
The above is only preferred implementation of the present utility model, be to be understood that the utility model is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from spirit and scope of the present utility model, then all should in the protection range of the utility model claims.
Claims (3)
1. based on the multistage aperture LED control circuit of CRC π type filtering, it is characterized in that: comprise AC-DC converter, CRC π type filter circuit, single pole multiple throw and multistage aperture LED, described multistage aperture LED comprises at least two ring-type LED-baseplate (1), each ring-type LED-baseplate (1) stretches out successively, each ring-type LED-baseplate (1) is provided with a LED string, and each LED string comprises multiple LED bulb (2); The ac input end of described AC-DC converter connects mains supply, the DC output end of AC-DC converter is connected with one end of resistance R, the other end of resistance R is connected with the power input of single pole multiple throw, electric capacity C1 and electric capacity C2 is connected in parallel on the two ends of resistance R respectively, and electric capacity C1 and electric capacity C2 altogether; The enable signal input connecting valve drive singal of single pole multiple throw, the output of single pole multiple throw is connected with each LED string respectively.
2. the multistage aperture LED control circuit based on the filtering of CRC π type according to claim 1, is characterized in that: the surface of described ring-type LED-baseplate (1) is provided with reflector.
3. the multistage aperture LED control circuit based on the filtering of CRC π type according to claim 1, is characterized in that: described LED string is made up of the blue-ray LED bulb of spaced setting and red-light LED bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661762.1U CN204157141U (en) | 2014-11-07 | 2014-11-07 | Based on the multistage aperture LED control circuit of CRC π type filtering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661762.1U CN204157141U (en) | 2014-11-07 | 2014-11-07 | Based on the multistage aperture LED control circuit of CRC π type filtering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204157141U true CN204157141U (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420661762.1U Expired - Fee Related CN204157141U (en) | 2014-11-07 | 2014-11-07 | Based on the multistage aperture LED control circuit of CRC π type filtering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204157141U (en) |
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2014
- 2014-11-07 CN CN201420661762.1U patent/CN204157141U/en not_active Expired - Fee Related
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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: 20150211 Termination date: 20171107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |