CN214205903U - Low-voltage control circuit for multicolor lamp strip - Google Patents
Low-voltage control circuit for multicolor lamp strip Download PDFInfo
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- CN214205903U CN214205903U CN202023350773.2U CN202023350773U CN214205903U CN 214205903 U CN214205903 U CN 214205903U CN 202023350773 U CN202023350773 U CN 202023350773U CN 214205903 U CN214205903 U CN 214205903U
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Abstract
The utility model relates to the field of LED lamp belts, and provides a low-voltage control circuit for a multicolor lamp belt, which is used for solving the problems of dense circuits and high cost of a circuit board of the existing multicolor lamp belt control circuit; a low-voltage control circuit for a multicolor lamp strip comprises an LED lamp strip and control circuits connected to two ends of the LED lamp strip, wherein the LED lamp strip is provided with a first connection port, a second connection port and a third connection port; each connecting port is connected with two switch control units, wherein one switch control unit is connected with the positive pole of the power supply voltage, and the other switch control unit is connected with the negative pole of the power supply voltage; two switch control units connected with the same connecting port are controlled by the same signal output line, and all the signal output lines are controlled by the signal control device; the utility model is used for controlling the circuit structure in polychrome lamp area is simple, only needs to set up three connection port on the lamp area and can realize polychrome switching or the effect of polychrome while giving out light, etc..
Description
Technical Field
The utility model relates to a LED lamp area field, more specifically relates to a low-voltage control circuit for polychrome lamp area.
Background
The LED (light emitting diode) strip is a strip that is formed by assembling LEDs on a strip-shaped FPC (flexible printed circuit) or PCB (printed circuit board) hard board, and is named as a strip because the shape of the product is like a strip. Because the service life is long (the normal service life is generally 8-10 ten thousand hours), the energy is saved, the environment is protected, and the method gradually exposes the corners in various decoration industries.
According to the requirements of the existing decoration industry, the single-color LED lamp strip is difficult to meet the requirements of practical application, so that a plurality of LED lamp strips with double colors, three colors, four colors and five colors appear in the market. In order to realize that lamp beads with various colors can alternately emit light and emit light simultaneously, lamp strips with the same color are required to form a single loop respectively and are controlled by respective circuits respectively, so that the circuit density and the cost are high in the control circuit of the existing multicolor lamp strip.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at overcoming above-mentioned prior art's at least one defect (not enough), provide a low pressure control circuit for polychrome lamp area for it is intensive to solve circuit among the current polychrome lamp area control circuit, the problem that the circuit board is with high costs.
The utility model adopts the technical scheme that the low-voltage control circuit for the multicolor lamp strip comprises a LED lamp strip and a control circuit connected to two ends of the LED lamp strip and used for controlling the LED lamp strip, wherein the LED lamp strip is provided with a first connection port, a second connection port and a third connection port; the first connection port is connected with the first switch control unit and the fourth switch control unit, the second connection port is connected with the second switch control unit and the fifth switch control unit, and the third connection port is connected with the third switch control unit and the sixth switch control unit; the first switch control unit, the second switch control unit and the third switch control unit are connected with one pole of the power supply voltage, and the fourth switch control unit, the fifth switch control unit and the sixth switch control unit are connected with the other pole of the power supply voltage; the first switch control unit and the fourth switch control unit are connected to the signal control unit through a first signal output line, the second switch control unit and the fifth switch control unit are connected to the signal control device through a second signal output line, and the third switch control unit and the sixth switch control unit are connected to the signal control device through a third signal output line; at least one of the first signal output line, the second signal output line and the third signal output line is different when outputting signals simultaneously.
The utility model discloses in, LED lamp area is connected with mains voltage through first connection port, second connection port to and be connected with mains voltage through second connection port, third connection port, in LED lamp area, third connection port is sharing port. In the LED lamp strip, lamp beads adopted between a first connection port and a second connection port of the lamp strip and between a second connection port and a third connection port of the lamp strip can be lamp beads with double light-emitting chips connected in parallel, one lamp bead with the double light-emitting chips is a lamp bead with red light-emitting chips and green light-emitting chips, the other lamp bead with the double light-emitting chips is a lamp bead with blue light-emitting chips and white light-emitting chips, the positive poles and the negative poles of the red light-emitting chips and the negative poles of the green light-emitting chips are opposite, the positive poles and the negative poles of the blue light-emitting chips and the positive poles of the white light-emitting chips are opposite, the light-emitting chips with different colors can emit light by controlling the direction of current, and when the current switching frequency reaches 265H, naked eyes can feel that the lamp strip emits light with four colors simultaneously. Certainly, the lamp beads can be matched with red, green, blue and white, and can also be matched with any two colors.
Of course, the above method can also be used to control, and a multi-color light-emitting scheme such as two-color alternate light-emitting or three-color alternate light-emitting, and two-color simultaneous light-emitting, three-color simultaneous light-emitting, etc. can also be implemented. And the different colour chips of LED lamp area are luminous in turn or luminous effect simultaneously by the utility model discloses a control circuit controls. The utility model discloses a current flow direction circuit includes following four kinds: flowing from the first connection port to the second connection port, from the second connection port to the first connection port, from the second connection port to the third connection port, and from the third connection port to the first connection port; specifically, the flow direction of the current is controlled by each switch control unit, and whether each switch control unit is in an on or off state is determined by the signal output by its corresponding signal output line.
The utility model discloses a three signal output lines can control the luminous chip of the different colours in four-color lamp area and give out light in turn or give out light simultaneously, and whole circuit layout is simple, and the cost is lower.
Further, the first switch control unit, the second switch control unit, the third switch control unit, the fourth switch control unit, the fifth switch control unit and the sixth switch control unit are all transistors.
The transistor, which is a type of variable current switch, is capable of controlling an output current based on an input voltage. Unlike ordinary mechanical switches, the transistor controls the on/off of itself by using an electrical signal, so the switching speed can be very fast.
Furthermore, the first switch control unit, the second switch control unit and the third switch control unit are P-type MOS transistors, and the fourth switch control unit, the fifth switch control unit and the sixth switch control unit are N-type MOS transistors; at least one of the first signal output line, the second signal output line and the third signal output line is different when outputting signals simultaneously.
The first signal output line, the second signal output line and the third signal output line can output high-level or low-level signals; in order to enable the LED lamp to emit light normally, it is necessary to ensure that the switch control units connected to the first signal output line, the second signal output line and the third signal output line are a P-type MOS transistor and an N-type MOS transistor, and the signals output by the three signal output lines at the same time are not identical.
When the first switch control unit, the second switch control unit and the third switch control unit are P-type MOS tubes, and the fourth switch control unit, the fifth switch control unit and the sixth switch control unit are N-type MOS tubes, the signals output by the first switch control unit, the second switch control unit and the third switch control unit comprise the following four signals:
first, when the first signal output line outputs a high level signal and the second signal output line and the third signal output line output a low level signal, the second switch control unit, the third switch control unit and the fourth switch control unit are turned on, and a current flows from the second switch control unit to the fourth switch control unit, and at this time, the current flows from the second connection port to the first connection port.
Secondly, when the first signal output line outputs a low level signal and the second signal output line and the third signal output line output a high level signal, the first switch control unit, the fifth switch control unit and the sixth switch control unit are turned on, current flows from the first switch control unit to the fifth switch control unit, and at the moment, current flows from the first connection port to the second connection port.
Thirdly, when the third signal output line outputs a high level signal and the first signal output line and the second signal output line output a low level signal, the first switch control unit, the second switch control unit and the sixth switch control unit are turned on, and current flows from the second switch control unit to the sixth switch control unit, and at this time, current flows from the second connection port to the third connection port.
Fourthly, when the third signal output line outputs a low level signal and the first signal output line and the second signal output line output a high level signal, the third switch control unit, the fourth switch control unit and the fifth switch control unit are turned on, current flows from the third switch control unit to the fifth switch control unit, and at the moment, current flows from the third connection port to the second connection port.
When the flow direction switching frequency of the four currents reaches 265H, the naked eye can feel that the light-emitting chips of the four different colors emit light simultaneously.
Furthermore, the first switch control unit, the second switch control unit and the third switch control unit are N-type MOS transistors, and the fourth switch control unit, the fifth switch control unit and the sixth switch control unit are P-type MOS transistors; at least one of the first signal output line, the second signal output line and the third signal output line is different when outputting signals simultaneously.
The first switch control unit, the second switch control unit and the third switch control unit are N-type MOS tubes, the fourth switch control unit, the fifth switch control unit and the sixth switch control unit are designed to be P-type MOS tubes, and the method is another method capable of realizing four-color switching or four-color simultaneous light emitting of the lamp strip.
Preferably, the P-type field effect transistor is IRF4905, and the N-type field effect transistor is IRF 3205.
Further, the signal control device is a micro control unit.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model is used for controlling the circuit structure in polychrome lamp area is simple, only needs to set up three connection port on the lamp area and can realize polychrome switching or the effect of polychrome while giving out light, etc..
Drawings
Fig. 1 is a control circuit diagram of the present invention.
Fig. 2 is the working principle diagram of the power-on element lamp strip of the present invention.
In the drawings are labeled: a first switch control unit-110, a second switch control unit-120, a third switch control unit-130, a fourth switch control unit-140, a fifth switch control unit-150, a sixth switch control unit-160; signal control means-200, a first signal output line-210, a second signal output line-220, a third signal output line-230; a first connection port-310, a second connection port-320, and a third connection port-330.
Detailed Description
The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
As shown in fig. 1, a low-voltage control circuit for a multi-color light strip includes an LED light strip and a control circuit connected to two ends of the LED light strip for controlling the LED light strip, where the LED light strip has a first connection port 310, a second connection port 320, and a third connection port 330; the first connection port 310 is connected to the first switch control unit 110 and the fourth switch control unit 140, the second connection port 320 is connected to the second switch control unit 120 and the fifth switch control unit 150, and the third connection port 330 is connected to the third switch control unit 130 and the sixth switch control unit 160; the first switch control unit 110, the second switch control unit 120, and the third switch control unit 130 are connected to one pole of the power voltage, and the fourth switch control unit 140, the fifth switch control unit 150, and the sixth switch control unit 160 are connected to the other pole of the power voltage; the first switch control unit 110 and the fourth switch control unit 140 are connected to the signal control unit through a first signal output line 210, the second switch control unit 120 and the fifth switch control unit 150 are connected to the signal control device 200 through a second signal output line 220, and the third switch control unit 130 and the sixth switch control unit 160 are connected to the signal control device 200 through a third signal output line 230; at least one of the first signal output line 210, the second signal output line 220 and the third signal output line 230 outputs signals at the same time is different.
As shown in fig. 2, which is a working principle of the LED strip used in this embodiment, the LED strip is formed by connecting multiple short strips in parallel, taking one short strip as an example, as the first short strip in fig. 2, the first short strip shares the third connection port 330, wherein in a loop formed by the first connection port 310 and the third connection port 330, three double-light-emitting chip beads and a resistor are connected in series, and each double-light-emitting chip bead is formed by connecting a color light-emitting chip a and a color light-emitting chip B in parallel and has opposite polarities; in a loop formed by the second connection port 320 and the third connection port 330, three double-light-emitting chip lamp beads are also connected in series with a resistor, and each double-light-emitting chip lamp bead is formed by connecting a C-color light-emitting chip and a D-color light-emitting chip in parallel, wherein the positive and negative poles of the C-color light-emitting chip and the D-color light-emitting chip are opposite; the colors a, B, C and D are four completely different colors.
When the first connection port 310 is connected with the second connection port 320, if current enters the second connection port 320 from the first connection port 310, only the light-emitting chip with the color A in the lamp strip emits light; if the current enters the first connection port 310 from the second connection port 320, only the light emitting chip with the color B emits light in the lamp strip; when the second connection port 320 is connected to the third connection port 330, if the current enters the third connection port 330 from the second connection port 320, only the C color light emitting chip in the lamp strip emits light, and if the current enters the second connection port 320 from the third connection port 330, only the D color light emitting chip in the lamp strip emits light. Therefore, the light-emitting chips with the four colors in the lamp strip can be controlled to alternately emit light, when the four connection modes are switched at high frequency, the light-emitting chips with the four colors alternately emit light at a high speed, and the effect of simultaneously emitting light with the four colors can be visually created.
The four different current flow lines are controlled by the control circuit, and in the embodiment, the states of the switch control units are controlled by three signal output lines, so that the current flow is controlled.
As shown in fig. 1, in the present embodiment, the first switch control unit 110, the second switch control unit 120, and the third switch control unit 130 are P-type MOS transistors, and the fourth switch control unit 140, the fifth switch control unit 150, and the sixth switch control unit 160 are N-type MOS transistors; the output signals and the current flow direction comprise the following four types:
first, when the first signal output line 210 outputs a high level signal and the second signal output line 220 and the third signal output line 230 output a low level signal, the second switch control unit 120, the third switch control unit 130 and the fourth switch control unit 140 are turned on, and a current flows from the second switch control unit 120 to the fourth switch control unit 140, at this time, the current flows from the second connection port 320 to the first connection port 310, and in combination with fig. 1 and 2, the B color light emitting chip in the light strip emits light.
Secondly, when the first signal output line 210 outputs a low level signal and the second signal output line 220 and the third signal output line 230 output a high level signal, the first switch control unit 110, the fifth switch control unit 150 and the sixth switch control unit 160 are turned on, and a current flows from the first switch control unit 110 to the fifth switch control unit 150, and at this time, a current flows from the first connection port 310 to the second connection port 320, and in combination with fig. 1 and 2, the light emitting chip of color a in the light strip emits light.
Thirdly, when the third signal output line 230 outputs a high level signal and the first signal output line 210 and the second signal output line 220 output a low level signal, the first switch control unit 110, the second switch control unit 120 and the sixth switch control unit 160 are turned on, and a current flows from the second switch control unit 120 to the sixth switch control unit 160, and at this time, a current flows from the second connection port 320 to the third connection port 330, and in combination with fig. 1 and 2, the C color light emitting chip in the light strip emits light.
Fourthly, when the third signal output line 230 outputs a low level signal and the first signal output line 210 and the second signal output line 220 output a high level signal, the third switch control unit 130, the fourth switch control unit 140 and the fifth switch control unit 150 are turned on, and a current flows from the third switch control unit 130 to the fifth switch control unit 150, and at this time, a current flows from the third connection port 330 to the second connection port 320, and in combination with fig. 1 and 2, the light emitting chip of the color D in the light strip emits light.
When the flow direction switching frequency of the four currents reaches 265H, the naked eye can feel that the light-emitting chips of the four different colors emit light simultaneously.
Of course, the above description only exemplifies an embodiment in which six switching control units are N-type MOS transistors or P-type MOS transistors, and other embodiments in which other switching control units capable of achieving the above four current flows are N-type MOS transistors or P-type MOS transistors are also within the scope of the present application. For example, the first switch control unit 110, the second switch control unit 120, and the third switch control unit 130 may be N-type MOS transistors, and the fourth switch control unit 140, the fifth switch control unit 150, and the sixth switch control unit 160 may be P-type MOS transistors; at least one of the first signal output line 210, the second signal output line 220 and the third signal output line 230 outputs signals at the same time is different.
The first switch control unit 110, the second switch control unit 120, and the third switch control unit 130 are N-type MOS transistors, and the fourth switch control unit 140, the fifth switch control unit 150, and the sixth switch control unit 160 are P-type MOS transistors, which is another method capable of implementing four-color switching or four-color simultaneous light emission of the light strip.
In this embodiment, the P-type fet is IRF4905, and the N-type fet is IRF 3205; the signal control device 200 is a micro control unit.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (5)
1. A low-voltage control circuit for a multicolor lamp strip comprises an LED lamp strip and control circuits connected to two ends of the LED lamp strip and used for controlling the LED lamp strip, and is characterized in that the LED lamp strip is provided with a first connection port, a second connection port and a third connection port; the first connection port is connected with the first switch control unit and the fourth switch control unit, the second connection port is connected with the second switch control unit and the fifth switch control unit, and the third connection port is connected with the third switch control unit and the sixth switch control unit; the first switch control unit, the second switch control unit and the third switch control unit are connected with one pole of the power supply voltage, and the fourth switch control unit, the fifth switch control unit and the sixth switch control unit are connected with the other pole of the power supply voltage; the first switch control unit and the fourth switch control unit are connected to the signal control unit through a first signal output line, the second switch control unit and the fifth switch control unit are connected to the signal control device through a second signal output line, and the third switch control unit and the sixth switch control unit are connected to the signal control device through a third signal output line.
2. A low voltage control circuit for a multi-color light strip according to claim 1, wherein the first switch control unit, the second switch control unit, the third switch control unit, the fourth switch control unit, the fifth switch control unit and the sixth switch control unit are transistors.
3. The low-voltage control circuit for the multi-color lamp strip according to claim 2, wherein the first switch control unit, the second switch control unit and the third switch control unit are P-type MOS transistors, and the fourth switch control unit, the fifth switch control unit and the sixth switch control unit are N-type MOS transistors; at least one of the first signal output line, the second signal output line and the third signal output line is different when outputting signals simultaneously.
4. The low-voltage control circuit for the multi-color lamp strip according to claim 2, wherein the first switch control unit, the second switch control unit and the third switch control unit are N-type MOS transistors, and the fourth switch control unit, the fifth switch control unit and the sixth switch control unit are P-type MOS transistors; at least one of the first signal output line, the second signal output line and the third signal output line is different when outputting signals simultaneously.
5. A low voltage control circuit for a multicolored light strip as claimed in claim 1, wherein said signal control means is a micro control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023350773.2U CN214205903U (en) | 2020-12-31 | 2020-12-31 | Low-voltage control circuit for multicolor lamp strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023350773.2U CN214205903U (en) | 2020-12-31 | 2020-12-31 | Low-voltage control circuit for multicolor lamp strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214205903U true CN214205903U (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023350773.2U Active CN214205903U (en) | 2020-12-31 | 2020-12-31 | Low-voltage control circuit for multicolor lamp strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214205903U (en) |
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- 2020-12-31 CN CN202023350773.2U patent/CN214205903U/en active Active
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