CN219678712U - LED lamp control circuit and lamp - Google Patents
LED lamp control circuit and lamp Download PDFInfo
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- CN219678712U CN219678712U CN202321138960.5U CN202321138960U CN219678712U CN 219678712 U CN219678712 U CN 219678712U CN 202321138960 U CN202321138960 U CN 202321138960U CN 219678712 U CN219678712 U CN 219678712U
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- control circuit
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- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides an LED lamp control circuit, which comprises a controller, wherein the controller comprises: the LED power supply comprises a main load circuit and a diode circuit, wherein the main load circuit is electrically connected with a power supply circuit, a first LED lamp and a second LED lamp are arranged in series in the main load circuit, and the first LED lamp and the second LED lamp are arranged in the same direction; the output end of the controller is electrically connected between the negative electrode end of the first LED lamp and the positive electrode end of the second LED lamp and is used for inputting signals to the main load circuit; the positive electrode end of the diode circuit is connected in parallel with the positive electrode end of the first LED lamp, and the negative electrode end of the diode circuit is connected in parallel with the negative electrode end of the second LED lamp. The utility model further provides a lamp. The utility model has the advantages of simple control circuit structure, effective saving of I/O port resources and reduction of manufacturing cost.
Description
Technical Field
The utility model relates to the technical field of control circuits, in particular to an LED lamp control circuit.
Background
The control of LED lamp always can use the singlechip, in the current control mode, every LED lamp all need have a control circuit, control the on-off of LED lamp through control circuit output different signals, two LED lamps need correspond to set up two signal output parts and output the signal respectively and just can control the on-off of two LED lamps respectively, when controlling the LED lamp through the singlechip, although the singlechip includes a plurality of I/O mouthfuls, the LED lamp is all adopted single line control, the I/O mouth of every singlechip can only correspond the control one LED lamp, can not adjust two LED lamps simultaneously through an I/O mouth, cause the waste of interface. Although a combined circuit control mode exists at present, the use of an I/O port of a singlechip can be reduced, and the control requirement of a plurality of LED lamps still cannot be met.
Disclosure of Invention
Accordingly, the present utility model is directed to an LED lamp control circuit, which solves the problem that the existing circuit requires multiple I/O ports to control multiple LED lamps.
The utility model adopts the following scheme: an LED lamp control circuit comprising a controller comprising: the LED power supply comprises a main load circuit and a diode circuit, wherein the main load circuit is electrically connected with a power supply circuit, a first LED lamp and a second LED lamp are arranged in series in the main load circuit, and the first LED lamp and the second LED lamp are arranged in the same direction; the output end of the controller is electrically connected between the negative electrode end of the first LED lamp and the positive electrode end of the second LED lamp and is used for inputting signals to the main load circuit; the positive electrode end of the diode circuit is connected in parallel with the positive electrode end of the first LED lamp, and the negative electrode end of the diode circuit is connected in parallel with the negative electrode end of the second LED lamp.
Further, a first resistor is arranged between the positive electrode end of the first LED lamp and the power supply end.
Further, the negative electrode end of the second LED lamp is connected to the grounding end, and a second resistor is arranged between the second LED lamp and the grounding end.
Further, the positive electrode end of the diode circuit is connected between the first resistor and the first LED lamp, and the negative electrode end of the diode circuit is connected between the second resistor and the second LED lamp.
Further, the controller is a singlechip.
Further, the first LED lamp and the second LED lamp are both light emitting diodes.
The utility model also provides a lamp, which comprises the LED lamp control circuit.
The beneficial effects are that:
according to the utility model, the controller is connected in parallel between the first LED lamp and the second LED lamp through the optimized circuit arrangement, high-level, low-level or high-resistance situations are provided, and the diode circuit is connected in parallel between the input end of the first LED lamp and the output end of the second LED lamp, so that only one lamp can be lightened when the controller outputs high-level or low-level, both lamps are extinguished when the controller is in a high-resistance state, and both lamps can be lightened when the controller is in high-low conversion of a certain frequency. Therefore, the two LED lamps can be controlled to be turned on and off through a single controller, I/O port resources can be saved, meanwhile, transistors of a working switch can be saved, and the manufacturing cost is reduced.
Drawings
FIG. 1 is a schematic circuit diagram of an LED lamp control circuit according to an embodiment of the utility model;
icon: the LED lamp comprises a power supply end VDD, a first resistor R1, a first LED lamp LED1, a second LED lamp LED2, a second resistor R2, a ground end GND, a controller I/OPort and a diode circuit D1.
Detailed Description
Examples
With reference to fig. 1, this embodiment provides a lamp, and an LED lamp control circuit. The LED lamp control circuit comprises a controller I/OPort and comprises: the LED lamp comprises a main load circuit and a diode circuit D1, wherein the main load circuit is electrically connected with a power supply circuit, a first LED lamp LED1 and a second LED lamp LED2 are arranged in series in the main load circuit, and the first LED lamp LED1 and the second LED lamp LED2 are arranged in the same direction; the output end of the controller I/OPort is electrically connected between the negative electrode end of the first LED lamp LED1 and the positive electrode end of the second LED lamp LED2 and is used for inputting signals to the main load circuit; the positive terminal of the diode circuit DI is connected in parallel with the positive terminal of the first LED lamp LED1, and the negative terminal is connected in parallel with the negative terminal of the second LED lamp LED 2.
In this embodiment, the main load circuit includes a power supply terminal VDD, a first resistor R1, a first LED lamp LED1, a second LED lamp LED2, a second resistor R2, and a ground terminal GND, and in fig. 1, a positive electrode is denoted by 1 at an electrical component, and a negative electrode is denoted by 2. The resistance values of the first resistor R1 and the second resistor R2 are not particularly limited, and may be 500 ohms, 1000 ohms, or the like. The first LED lamp LED1 and the second LED lamp LED2 are arranged in the same direction, so that the negative electrode end of the first LED lamp is connected with the positive electrode end of the second LED lamp LED2, namely, the electrode directions are consistent. The first LED lamp LED1 and the second LED lamp LED2 are both light emitting diodes, i.e. LED tubes.
The controller I/OPort adopts the existing singlechip to control, can output signals with different high level, low level and high resistance states, can realize the conversion of high level and low level, and can adjust and set conversion frequency. The model of the singlechip is not particularly limited here.
The diode circuit D1 is provided with a diode, the positive electrode end of the diode circuit D1 is connected between the first resistor R1 and the positive electrode of the first LED lamp LED1, and the negative electrode end of the diode circuit D is arranged between the second resistor R2 and the negative electrode end of the second LED lamp LED 2.
The working principle of the utility model is as follows: when the single I/O port of the controller I/OPort outputs a high level, the second LED lamp LED2 is turned on, and the first LED lamp LED1 is turned off; when a single I/O port of the controller I/OPort outputs a low level, the first LED lamp LED1 is turned on, and the second LED lamp LED2 is turned off; when a single I/O port of the controller I/OPort outputs a high resistance state, the first LED lamp LED1 and the second LED lamp LED2 are turned off; when the I/O port of the controller I/OPort alternately outputs a high level and a low level at a certain frequency, the first LED lamp LED1 and the second LED lamp LED2 are alternately turned on, and when the lower turn-on frequency is higher than 60HZ, the human eye cannot distinguish whether to turn off, so that the first LED lamp LED1 and the second LED lamp LED2 are turned on at the same time from the visual effect.
According to the scheme of the utility model, the circuit is simple and convenient to control, and the independent on-off and simultaneous on-off functions of the two light emitting parts can be controlled by adopting a single I/O port, so that the resources of the I/O port of the singlechip are effectively saved, the transistors used as switches can be saved, and the manufacturing cost is reduced.
It should be understood that: the above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model.
The description of the drawings in the embodiments above illustrates only certain embodiments of the utility model and should not be taken as limiting the scope, since other related drawings may be made by those of ordinary skill in the art without the benefit of the inventive faculty.
Claims (7)
1. An LED lamp control circuit comprising a controller, comprising: the LED power supply comprises a main load circuit and a diode circuit, wherein the main load circuit is electrically connected with a power supply circuit, a first LED lamp and a second LED lamp are arranged in series in the main load circuit, and the first LED lamp and the second LED lamp are arranged in the same direction; the output end of the controller is electrically connected between the negative electrode end of the first LED lamp and the positive electrode end of the second LED lamp and is used for inputting signals to the main load circuit; the positive electrode end of the diode circuit is connected in parallel with the positive electrode end of the first LED lamp, and the negative electrode end of the diode circuit is connected in parallel with the negative electrode end of the second LED lamp.
2. The LED lamp control circuit of claim 1 wherein,the main load circuit includes a power supply terminal,a first resistor is arranged between the positive end of the first LED lamp and the power end.
3. The LED lamp control circuit of claim 2, wherein the negative terminal of the second LED lamp is connected to ground and a second resistor is disposed between the second LED lamp and the ground.
4. The LED lamp control circuit of claim 3, wherein the positive terminal of the diode circuit is connected between the first resistor and the first LED lamp and the negative terminal of the diode circuit is connected between the second resistor and the second LED lamp.
5. The LED lamp control circuit of claim 1, wherein the controller is a single chip microcomputer.
6. The LED lamp control circuit of claim 1, wherein the first LED lamp and the second LED lamp are both light emitting diodes.
7. A luminaire comprising the LED lamp control circuit of any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321138960.5U CN219678712U (en) | 2023-05-12 | 2023-05-12 | LED lamp control circuit and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321138960.5U CN219678712U (en) | 2023-05-12 | 2023-05-12 | LED lamp control circuit and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219678712U true CN219678712U (en) | 2023-09-12 |
Family
ID=87897137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321138960.5U Active CN219678712U (en) | 2023-05-12 | 2023-05-12 | LED lamp control circuit and lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219678712U (en) |
-
2023
- 2023-05-12 CN CN202321138960.5U patent/CN219678712U/en active Active
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