CN111132419A - LED circuit capable of suppressing harmonic waves and lamp using same - Google Patents
LED circuit capable of suppressing harmonic waves and lamp using same Download PDFInfo
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- CN111132419A CN111132419A CN202010013023.1A CN202010013023A CN111132419A CN 111132419 A CN111132419 A CN 111132419A CN 202010013023 A CN202010013023 A CN 202010013023A CN 111132419 A CN111132419 A CN 111132419A
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Abstract
The invention discloses an LED circuit capable of suppressing harmonic waves and a lamp applying the same, and the LED circuit comprises a first LED lamp group, a second LED lamp group, a resistor R1, a resistor R2 and a one-way element, wherein the anode of the one-way element is electrically connected with the cathode of the first LED lamp group and one end of the resistor R1 respectively; the cathode of the unidirectional element is electrically connected with the anode of the second LED lamp group and one end of the resistor R2 respectively; the positive pole of outside power supply can respectively with the positive pole of first LED banks, resistance R2's other end electric connection, the negative pole of outside power supply can respectively with the negative pole of second LED banks the other end electric connection of resistance R1 for can be under the input of multiple harmonic, LED circuit also can stable work, reduces the stroboscopic, has better luminous effect.
Description
Technical Field
The invention relates to the field of illumination, in particular to an LED circuit capable of inhibiting harmonic waves and a lamp applying the LED circuit.
Background
The traditional LED circuit is generally formed by connecting a plurality of LED lamp beads in series, because of the inherent characteristic of the starting voltage of the LED lamp beads, the voltage applied to two ends of the LED lamp beads is required to be larger than the starting voltage of the LED lamp beads, and the LED lamp beads can be triggered to light, therefore, an external power supply supplies power for the LED circuit, when the external power supply has noise interference (such as third harmonic), the fluctuation is large, the voltage and the current applied to two ends of the LED circuit are distorted in different degrees, the time of the input voltage at a lower value is possibly long, when the input voltage is at the lower value, all LED lamp banks in the LED circuit are in a mutually-connected state, the input voltage is insufficient, the terminal voltage distributed to the LED lamp beads is too low, partial terminal voltage on the LED lamp beads does not reach the standard of the starting voltage, the LED lamp beads cannot light, the LED circuit is unstable and has serious stroboscop, the luminous efficiency is poor, the product can not be verified, and the use requirement can not be met.
Disclosure of Invention
The invention aims to solve at least one of the technical problems in the prior art, and provides an LED circuit capable of inhibiting harmonic waves and a lamp applying the LED circuit.
The technical scheme adopted by the invention is as follows:
an LED circuit capable of suppressing harmonic waves comprises a first LED lamp group, a second LED lamp group, a resistor R1, a resistor R2 and a one-way element, wherein the positive electrode of the one-way element is electrically connected with the negative electrode of the first LED lamp group and one end of the resistor R1 respectively; the cathode of the unidirectional element is electrically connected with the anode of the second LED lamp group and one end of the resistor R2 respectively; the positive electrode of the external power supply can be electrically connected with the positive electrode of the first LED lamp group and the other end of the resistor R2 respectively, and the negative electrode of the external power supply can be electrically connected with the negative electrode of the second LED lamp group and the other end of the resistor R1 respectively.
The unidirectional element is a diode.
The first LED lamp group comprises a plurality of LED lamp beads which are connected in series.
The second LED lamp group comprises a plurality of LED lamp beads which are connected in series.
The LED lamp further comprises a third LED lamp group, the negative electrode of the third LED lamp group is electrically connected with the positive electrode of the first LED lamp group and the other end of the resistor R2 respectively, and the positive electrode of an external power supply can be electrically connected with the positive electrode of the third LED lamp group.
The LED lamp further comprises a fourth LED lamp group, the anode of the fourth LED lamp group is electrically connected with the cathode of the second LED lamp group and the other end of the resistor R1 respectively, and the cathode of an external power supply can be electrically connected with the cathode of the fourth LED lamp group.
The LED circuit capable of suppressing harmonic waves according to the embodiment of the invention has at least the following beneficial effects:
the LED circuit of the invention has noise interference of input voltage, when the input voltage is at a lower value, a resistor R1 and a first LED lamp group form a first series branch, a resistor R2 and a second LED lamp group form a second series branch, the first series branch is connected with the second series branch in parallel, so that the voltage applied to the first LED lamp group and the voltage applied to the second LED lamp group are higher relative to the voltage distributed when the first LED lamp group and the second LED lamp group are connected in series, the first LED lamp group and the second LED lamp group are sufficiently lightened even when the input voltage is at a lower value, and when the input voltage is increased to a higher value, the input voltage is sufficient to support the series starting of the first LED lamp group and the second LED lamp group, the power supply current basically flows through the branches of the first LED lamp group, the unidirectional element and the second LED lamp group, and partial current can flow through the resistor R1 and then flows out due to the unidirectional element, and partial current also can flow in from resistance R2, then gets into second LED banks, but can not flow in back entering resistance R1 from resistance R2, and this design utilizes resistive property and unidirectional component to improve traditional LED circuit ingeniously for under the input of multiple harmonics, LED circuit also can stable work, reduces the stroboscopic, has better luminous effect.
The specific embodiment of the invention also discloses a lamp which comprises the LED circuit capable of inhibiting harmonic waves disclosed by any one of the embodiments.
The lamp provided by the embodiment of the invention at least has the following beneficial effects:
according to the lamp, the traditional LED circuit is improved by skillfully utilizing the resistance characteristic and the unidirectional element, so that the LED circuit can stably work under the input of multiple harmonic waves, the stroboflash is reduced, and the lamp has a good luminous effect.
Drawings
The following further describes embodiments of the present invention with reference to the drawings.
Fig. 1 is a schematic diagram of an LED circuit of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
As shown in fig. 1, an LED circuit capable of suppressing harmonics includes a first LED lamp set 1, a second LED lamp set 2, a resistor R1, a resistor R2, and a unidirectional element, wherein a positive electrode of the unidirectional element 3 is electrically connected to a negative electrode of the first LED lamp set 1 and one end of the resistor R1, respectively; the cathode of the unidirectional element 3 is electrically connected with the anode of the second LED lamp set 2 and one end of the resistor R2 respectively; the positive electrode of the external power supply can be electrically connected with the positive electrode of the first LED lamp group 1 and the other end of the resistor R2, respectively, and the negative electrode of the external power supply can be electrically connected with the negative electrode of the second LED lamp group 2 and the other end of the resistor R1, respectively.
Wherein, resistance R1 or resistance R2 can be formed by one or how many resistance series connections, and first LED banks 1 can include an LED lamp pearl, or first LED banks 1 includes a plurality of LED lamp pearls that establish ties each other, or includes a plurality of LED lamp pearls that establish ties each other.
Similarly, the second LED lamp set 2 may include one LED lamp bead, or the second LED lamp set 2 includes a plurality of LED lamp beads connected in series, or includes a plurality of LED lamp beads connected in series and parallel
The unidirectional element 3 of the design can be a diode, and can also be a silicon controlled rectifier, a triode and the like.
The LED circuit is designed, the input voltage has noise interference, when the input voltage is at a lower value, the resistor R1 and the first LED lamp group 1 form a first series branch, the resistor R2 and the second LED lamp group 2 form a second series branch, the first series branch is connected with the second series branch in parallel, so that the voltage applied to the first LED lamp group 1 and the voltage applied to the second LED lamp group 2 are higher relative to the voltage distributed when the first LED lamp group 1 and the second LED lamp group 2 are connected in series, even when the input voltage is at a lower value, the first LED lamp group 1 and the second LED lamp group 2 are enough to be lightened, and when the input voltage rises to a higher value, the input voltage is enough to support the series starting of the first LED lamp group 1 and the second LED lamp group 2, the supply current basically flows through the branches of the first LED lamp group 1, the unidirectional element and the second LED lamp group 2, and the unidirectional element 3 exists, at this moment, partial current can flow through the resistor R1 and then flow out after flowing through the first LED lamp group 1, and partial current can also flow in from the resistor R2 and then enter the second LED lamp group 2, but can not flow in from the resistor R2 and then enter the resistor R1, the design ingeniously utilizes the resistance characteristic and the one-way element to improve the traditional LED circuit, so that under the input of multiple harmonics, the LED circuit can also work stably, stroboflash is reduced, and the LED lamp group has a better light-emitting effect.
In some embodiments, the LED lighting device further includes a third LED lamp group 4, a cathode of the third LED lamp group 4 is electrically connected to an anode of the first LED lamp group 1 and another end of the resistor R2, respectively, and an anode of the external power supply can be electrically connected to an anode of the third LED lamp group 4.
Similarly, in some embodiments, a fourth LED lamp set 5 is further included, an anode of the fourth LED lamp set 5 is electrically connected to a cathode of the second LED lamp set 2 and the other end of the resistor R1, respectively, and a cathode of the external power supply can be electrically connected to a cathode of the fourth LED lamp set 5.
The third LED lamp group 4 and the fourth LED lamp group 5 can both comprise one LED lamp bead, or comprise a plurality of LED lamp beads connected in series and in series.
The specific embodiment of the invention also discloses a lamp which comprises the LED circuit capable of inhibiting harmonic waves disclosed by any one of the embodiments.
The lamp can comprise a lamp belt, a wall washing lamp, a wall lamp and the like, and can be additionally provided with a driving circuit board, wherein the driving circuit board is electrically connected with external alternating current and outputs direct current to supply power for the LED circuit.
According to the lamp, the traditional LED circuit is improved by skillfully utilizing the resistance characteristic and the unidirectional element, so that the LED circuit can stably work under the input of multiple harmonic waves, the stroboflash is reduced, and the lamp has a good luminous effect.
It is readily understood by those skilled in the art that the above-described preferred modes can be freely combined and superimposed without conflict.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (7)
1. An LED circuit capable of suppressing harmonic waves comprises a first LED lamp group, a second LED lamp group, a resistor R1, a resistor R2 and a one-way element, wherein the positive electrode of the one-way element is electrically connected with the negative electrode of the first LED lamp group and one end of the resistor R1 respectively; the cathode of the unidirectional element is electrically connected with the anode of the second LED lamp group and one end of the resistor R2 respectively;
the positive electrode of the external power supply can be electrically connected with the positive electrode of the first LED lamp group and the other end of the resistor R2 respectively, and the negative electrode of the external power supply can be electrically connected with the negative electrode of the second LED lamp group and the other end of the resistor R1 respectively.
2. An LED circuit capable of suppressing harmonics according to claim 1, wherein: the unidirectional element is a diode.
3. An LED circuit capable of suppressing harmonics according to claim 1, wherein: the first LED lamp group comprises a plurality of LED lamp beads which are connected in series.
4. An LED circuit capable of suppressing harmonics according to claim 1, wherein: the second LED lamp group comprises a plurality of LED lamp beads which are connected in series.
5. An LED circuit capable of suppressing harmonics according to claim 1, wherein: the LED lamp further comprises a third LED lamp group, the negative electrode of the third LED lamp group is electrically connected with the positive electrode of the first LED lamp group and the other end of the resistor R2 respectively, and the positive electrode of an external power supply can be electrically connected with the positive electrode of the third LED lamp group.
6. An LED circuit capable of suppressing harmonics according to claim 1 or 5, wherein: the LED lamp further comprises a fourth LED lamp group, the anode of the fourth LED lamp group is electrically connected with the cathode of the second LED lamp group and the other end of the resistor R1 respectively, and the cathode of an external power supply can be electrically connected with the cathode of the fourth LED lamp group.
7. A luminaire comprising an LED circuit capable of suppressing harmonics as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010013023.1A CN111132419A (en) | 2020-01-07 | 2020-01-07 | LED circuit capable of suppressing harmonic waves and lamp using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010013023.1A CN111132419A (en) | 2020-01-07 | 2020-01-07 | LED circuit capable of suppressing harmonic waves and lamp using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111132419A true CN111132419A (en) | 2020-05-08 |
Family
ID=70487172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010013023.1A Pending CN111132419A (en) | 2020-01-07 | 2020-01-07 | LED circuit capable of suppressing harmonic waves and lamp using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111132419A (en) |
-
2020
- 2020-01-07 CN CN202010013023.1A patent/CN111132419A/en active Pending
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