CN211297019U - Control circuit for LED illumination - Google Patents
Control circuit for LED illumination Download PDFInfo
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- CN211297019U CN211297019U CN201921657733.7U CN201921657733U CN211297019U CN 211297019 U CN211297019 U CN 211297019U CN 201921657733 U CN201921657733 U CN 201921657733U CN 211297019 U CN211297019 U CN 211297019U
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Abstract
The utility model relates to the technical field of circuits, in particular to a control circuit for LED illumination, which comprises a power module; the power input end of the control module is connected with the output end of the power module; the signal input end of the infrared induction module is connected with the first output end of the control module; the power end of the voice module is connected with the output end of the power module, and the signal input end of the voice module is connected with the second output end of the control module; and the power supply end of the output module is connected with the input end of the power supply module, and the signal input end of the output module is connected with the third output end of the control module. The technical scheme of the utility model beneficial effect lies in: a control circuit for LED lighting is provided, which is used for controlling LED lighting switch and dimming by a voice module beyond the distance which can not be identified by an infrared induction module.
Description
Technical Field
The utility model relates to the technical field of circuits, especially, relate to a control circuit for LED illumination.
Background
The LED lamp is a novel lamp, is being widely popularized and applied due to the characteristics of high brightness, long service life, low power consumption and the like, functions are continuously expanded, the rhythm of modern life and work is continuously accelerated, the demand for various intelligent controls is increasingly large, and the wide application of a household intelligent lighting system enables people to meet the demand for simple control of intelligent lamps.
The conventional intelligent lamp has been generally controlled to switch on and off and dim through an infrared sensor, but the distance problem sometimes has operation difficulty, so that the problem becomes a difficult problem to be solved urgently by a person skilled in the art.
Disclosure of Invention
In view of the above-mentioned problems in the prior art, a control circuit for LED lighting is now provided.
The specific technical scheme is as follows:
the utility model provides a control circuit for LED illumination, wherein, include:
a power module;
the power supply input end of the control module is connected with the output end of the power supply module;
the signal input end of the infrared induction module is connected with the first output end of the control module;
the power end of the voice module is connected with the output end of the power module, and the signal input end of the voice module is connected with the second output end of the control module;
and the power supply end of the output module is connected with the input end of the power supply module, and the signal input end of the output module is connected with the third output end of the control module.
Preferably, the power supply module includes:
an AC power supply;
the input end of the first voltage reduction subunit is connected to the input end of the alternating current power supply;
the input end of the second voltage reduction subunit is connected with the output end of the first voltage reduction subunit;
and the input end of the third voltage reduction subunit is connected with the output end of the second voltage reduction subunit.
Preferably, the control module is a control chip, the control chip at least includes thirteen pins, and the first pin of the control chip is connected to the output end of the power module.
Preferably, the infrared sensing module includes:
the input end of the transmitting unit is connected with the second pin of the control chip;
and the input end of the receiving unit is connected with the third pin of the control chip.
Preferably, the transmitting unit includes:
the anode of the infrared emitting diode is connected with the output end of the power supply module;
the first capacitor is connected between the anode and the cathode of the infrared emitting diode;
the first resistor is connected to the cathode of the infrared emitting diode;
the second resistor is connected in parallel with the first resistor;
and the collector of the first triode is connected to the first resistor, the emitter of the first triode is connected to the ground terminal, and the base of the first triode is connected to the second pin of the control chip through a third resistor.
Preferably, the receiving unit includes:
a collector of the second triode is connected with the third pin of the control chip through a fourth resistor, and an emitter of the second triode is connected with the third pin of the control chip through a second capacitor;
the third capacitor is connected to the base electrode of the second triode;
the fifth resistor is connected between the base electrode of the second triode and the collector electrode of the second triode;
the emitter of the infrared receiving triode is connected to the grounding end through a sixth resistor, and the collector of the infrared receiving triode is connected to the collector of the second triode through a seventh resistor;
and the fourth capacitor is connected in parallel with the sixth resistor.
Preferably, the voice module includes:
a first pin of the voice collection unit is connected to the ground terminal, a second pin of the voice collection unit is connected to the output terminal of the power module, a third pin of the voice collection unit is connected to a fourth pin of the control chip, and the fourth pin of the voice collection unit is connected to a fifth pin of the control chip;
a first pin of the processing unit is connected with an output end of the second buck subunit, a second pin of the processing unit is connected with the ground terminal, a third pin of the processing unit is connected with a sixth pin of the control chip, and a fourth pin of the processing unit is connected with a seventh pin of the control chip;
the fifth capacitor is connected between the first pin of the processing unit and the ground terminal;
the eighth resistor is connected between the output end of the power supply module and the fourth pin of the processing unit;
and the ninth resistor is connected between the output end of the power supply module and the third pin of the processing unit.
Preferably, the output module includes:
a first pin of the integrated chip is connected to the output end of the first voltage-reducing subunit, a second pin of the integrated chip is connected to the output end of the first voltage-reducing subunit through a sixth capacitor, a third pin of the integrated chip is connected to an eighth pin of the control chip through a tenth resistor, and a fourth pin of the integrated chip is connected to the ground end;
the grid electrode of the MOS tube is connected to a fifth pin of the integrated chip through an eleventh resistor, the source electrode of the MOS tube is connected to the grounding end, and the drain electrode of the MOS tube is connected to the input end of the alternating current power supply through a first interface;
and the twelfth resistor is connected between the eleventh resistor and the source electrode of the MOS tube.
The technical scheme of the utility model beneficial effect lies in: a control circuit for LED lighting is provided, which is used for controlling LED lighting switch and dimming by a voice module beyond the distance which can not be identified by an infrared induction module.
Drawings
Fig. 1 is an overall circuit configuration diagram of an embodiment of the present invention;
fig. 2 is a circuit diagram of a transmitting unit according to an embodiment of the present invention;
fig. 3 is a circuit diagram of an output module according to an embodiment of the present invention;
fig. 4 is a circuit diagram of a power module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
The invention provides a control circuit for LED illumination, which comprises:
a power module 1;
the power input end of the control module 2 is connected with the output end of the power module 1;
the signal input end of the infrared induction module 3 is connected with the first output end of the control module 2;
a power end of the voice module 4 is connected with an output end of the power module 1, and a signal input end of the voice module 4 is connected with a second output end of the control module 2;
and the power end of the output module 5 is connected with the input end of the power module 1, and the signal input end of the output module 5 is connected with the third output end of the control module 2.
The power module 1 includes:
an alternating current power supply VIN;
a first voltage-reducing subunit 10, wherein an input end of the first voltage-reducing subunit 10 is connected to an input end of the alternating-current power supply VIN;
the input end of the second voltage reduction subunit 11 is connected with the output end of the first voltage reduction subunit 10;
and the input end of the third voltage reduction subunit 12 is connected with the output end of the second voltage reduction subunit 11.
The control module 2 is a control chip MCU, the control chip MCU at least comprises thirteen pins, and a first pin of the control chip MCU is connected to the output end of the power module 1.
The infrared induction module 3 includes:
the input end of the transmitting unit 30 is connected with a second pin of the control chip MCU;
and the input end of the receiving unit 31 is connected with the third pin of the control chip MCU.
The voice module 4 includes:
a first pin of the voice collecting unit 40 is connected to a ground terminal GND, a second pin of the voice collecting unit 40 is connected to an output terminal of the power module 1, a third pin of the voice collecting unit 40 is connected to a fourth pin of the control chip MCU, and the fourth pin of the voice collecting unit 40 is connected to a fifth pin of the control chip MCU;
a processing unit 41, a first pin of the processing unit 41 is connected to the output end of the second step-down subunit 11, a second pin of the processing unit 41 is connected to a ground end GND, a third pin of the processing unit 41 is connected to a sixth pin of the control chip MCU, and a fourth pin of the processing unit 41 is connected to a seventh pin of the control chip MCU;
a fifth capacitor C5, the fifth capacitor C5 is connected between the first pin of the processing unit 41 and the ground GND;
an eighth resistor R8, the eighth resistor R8 is connected between the output terminal of the power module 1 and the fourth pin of the processing unit 41;
a ninth resistor R9, the ninth resistor R9 is connected between the output terminal of the power module 1 and the third pin of the processing unit 41.
Through the control circuit provided above, as shown in fig. 1 and 4, firstly, the power module 1 adopts a series voltage stabilizing circuit to provide a smaller voltage, and the power module 1 respectively passes through the first voltage-reducing subunit 10, the second voltage-reducing subunit 11 and the third voltage-reducing subunit 12, wherein the first voltage-reducing subunit 10 reduces the 24V dc voltage to 12V, the second voltage-reducing subunit 11 reduces the 12V dc voltage to 5V, and finally reduces the 5V dc voltage to 3.3V, so as to supply power to the control module 2 and the voice module 4.
Further, the control module 2 firstly controls the infrared sensing module 3, and when a hand approaches the infrared sensing module 3, a signal emitted by the emitting unit 30 in the infrared sensing module 3 is reflected to the receiving unit 31 in the infrared sensing module 3 by the hand.
Further, when the receiving unit 31 receives the signal transmitted by the transmitting unit 30 and determines that an object is approaching, the signal is transmitted to the control chip MCU, and the signal is analyzed by the control chip MCU to execute an instruction, which can be defined.
Further, the first approach and departure of the object is a signal 1, a high level command can be executed, the second approach and departure of the object is a signal 2, a low level command can be executed, the first approach and stay time of the object exceeds 1S and is a signal 3, PWM (pulse width modulation) duty ratio output can be increased, the second approach and stay time of the object exceeds 1S and is a signal 4, PWM duty ratio output can be decreased, and therefore switching and dimming of the LED illuminating lamp can be achieved in a short distance (within 10 cm).
Further, when the object is 10cm away from the LED lighting lamp, the infrared sensing module 3 cannot control the on/off dimming of the LED lighting lamp, so that the LED lighting lamp can be turned on/off and dimmed through the voice module 4.
Furthermore, the voice signal is collected by the voice collecting unit 40 in the voice module 4, and then is recognized by the control chip MCU through the voice algorithm, converted into the serial communication protocol, and transmitted to the processing unit in the voice module 4.
Further, the output PWM is changed by the control chip MCU recognizing the serial code of the serial communication protocol, for example, the serial code is YQ10, the output is high level, the serial code is YQ11, the PWM duty ratio output can be increased, the serial code is YQ12, the output is low level, the serial code is YQ11, and the PWM duty ratio output can be decreased.
Furthermore, the output module 5 is connected to the control chip MCU, and the control chip MCU outputs PWM to control the output module 5 to realize the on-off and dimming of the LED illuminating lamp.
In a preferred embodiment, the transmitting unit 30 comprises:
the anode of the infrared emitting diode D1 is connected with the output end of the power supply module 1;
the first capacitor C1, the first capacitor C1 is connected between the anode and the cathode of the infrared emitting diode D1;
a first resistor R1, the first resistor R1 is connected to the cathode of the IR emitting diode D1;
a second resistor R2, the second resistor R2 is connected in parallel with the first resistor R1;
a first triode Q1, wherein the collector of the first triode Q1 is connected to the first resistor R1, the emitter of the first triode Q1 is connected to the ground GND, and the base of the first triode Q1 is connected to the second pin of the control chip MCU through a third resistor R3.
Specifically, as shown in fig. 2, the transmitting unit 30 uses an infrared emitting diode D1 to send out a signal, in this embodiment, an anode of the infrared emitting diode D1 is connected to the output terminal of the power module 1, a first capacitor C1 is connected between the anode and the cathode of the infrared emitting diode D1, the first capacitor C1 is a non-polar capacitor, a first resistor R1 is connected to the cathode of the infrared emitting diode D1, and a second resistor R2 is connected in parallel to the first resistor R1.
Further, the transmitting unit 30 further includes a first transistor Q1, wherein a collector of the first transistor Q1 is connected to the first resistor R1, an emitter thereof is connected to the ground GND, and a base thereof is connected to the second pin of the control chip MCU through a third resistor R3.
In a preferred embodiment, the receiving unit 31 comprises:
a second triode Q2, wherein the collector of the second triode Q2 is connected with the third pin of the control chip MCU through a fourth resistor R4, and the emitter of the second triode Q2 is connected with the third pin of the control chip MCU through a second capacitor C2;
a third capacitor C3, the third capacitor C3 is connected to the base of the second transistor Q2;
a fifth resistor R5, the fifth resistor R5 is connected between the base of the second triode Q2 and the collector of the second triode Q2;
an infrared receiving triode Q3, wherein the emitter of the infrared receiving triode Q3 is connected to the ground GND through a sixth resistor R6, and the collector of the infrared receiving triode Q3 is connected to the collector of the second triode Q2 through a seventh resistor R7;
a fourth capacitor C4, the fourth capacitor C4 is connected in parallel to the sixth resistor R6.
Specifically, as shown in fig. 1, a collector of the second transistor Q2 is connected to the third pin of the control chip MCU through a fourth resistor R4, an emitter of the second transistor Q2 is connected to the third pin of the control chip MCU through a second capacitor C2, and the second capacitor C2 is a non-polar capacitor.
Further, the third capacitor C3 is connected to the base of the second transistor Q2, the fifth resistor R5 is connected between the base of the second transistor Q2 and the collector of the second transistor Q2, and the third capacitor C3 is a non-polar capacitor.
Further, the receiving unit 31 employs an infrared receiving transistor Q3 to receive the signal emitted by the infrared emitting diode D1, wherein an emitter of the infrared receiving transistor Q3 is connected to the ground GND through a sixth resistor R6, a collector of the infrared receiving transistor Q3 is connected to a collector of the second transistor Q2 through a seventh resistor R7, a fourth capacitor C4 is connected in parallel to the sixth resistor R6, and the fourth capacitor C4 is a non-polar capacitor.
In a preferred embodiment, the output module 5 comprises:
a first pin of the integrated chip U is connected to the output end of the first voltage-reducing subunit 10, a second pin of the integrated chip U is connected to the output end of the first voltage-reducing subunit 10 through a sixth capacitor C6, a third pin of the integrated chip U is connected to an eighth pin of the control chip MCU through a tenth resistor R10, and a fourth pin of the integrated chip U is connected to the ground GND;
a MOS transistor (field effect transistor) Q4, a gate of the MOS transistor Q4 is connected to the fifth pin of the integrated chip U through an eleventh resistor R11, a source of the MOS transistor Q4 is connected to the ground GND, and a drain of the MOS transistor Q4 is connected to the input terminal of the ac power supply VIN through a first interface CON 1;
a twelfth resistor R12, the twelfth resistor R12 is connected between the eleventh resistor R11 and the source of the MOS transistor Q4.
Specifically, as shown in fig. 3, the integrated chip U in the output module 5 includes at least five pins, wherein a first pin is connected to the output terminal of the first voltage-reducing subunit 10, a second pin is connected to the output terminal of the first voltage-reducing subunit 10 through a sixth capacitor C6, a third pin is connected to an eighth pin of the control chip MCU through a tenth resistor R10, and a fourth pin is connected to the ground GND.
Further, the MOS transistor Q4 in the output module 5 is used for being controlled by the control chip to output the PWM signal, so as to realize the switching and dimming of the LED lighting lamp, wherein the gate of the MOS transistor Q4 is connected to the fifth pin of the integrated chip U through an eleventh resistor R11, the source of the MOS transistor Q4 is connected to the ground GND, and the drain of the MOS transistor Q4 is connected to the input terminal of the ac power VIN through a first interface CON 1.
Further, the output module 5 further includes a twelfth resistor R12 connected between the eleventh resistor R11 and the source of the MOS transistor.
In a preferred embodiment, as shown in fig. 4, the first buck subunit 10 includes:
a diode D2, wherein the anode of the diode D2 is connected with the input end of the alternating current power supply VIN;
a thirteenth resistor R13, the thirteenth resistor R13 is connected to the cathode of the diode D2;
a seventh capacitor C7, the seventh capacitor C7 is connected between the thirteenth resistor R13 and the input terminal of the ac power VIN through a second interface CON 2;
an eighth capacitor C8, the eighth capacitor C8 is connected in parallel with the seventh capacitor C7;
a first three-terminal regulator U1, the input end of the first three-terminal regulator U1 is connected to the thirteenth resistor R13, and the grounding end of the first three-terminal regulator U1 is connected to the grounding end GND;
a ninth capacitor C9, wherein the anode of the ninth capacitor C9 is connected to the output terminal of the first three-terminal regulator U1, and the cathode of the ninth capacitor C9 is connected to the ground GND.
The second voltage dropping subunit 11 includes:
a tenth capacitor C10, the tenth capacitor C10 is connected between the positive and negative poles of the ninth capacitor C9;
the input end of the second three-terminal regulator U2 is connected with the output end of the first three-terminal regulator U1, and the ground end of the second three-terminal regulator U2 is connected to the ground end GND;
an eleventh capacitor C11, wherein the anode of the eleventh capacitor C11 is connected to the output terminal of the second three-terminal regulator U2, and the cathode of the eleventh capacitor C11 is connected to the ground GND.
The third voltage dropping subunit 12 includes:
the input end of the third three-terminal regulator U3 is connected with the output end of the second three-terminal regulator U2, and the ground end of the third three-terminal regulator U3 is connected to the ground end GND;
and the anode of the twelfth capacitor C12 and the anode of the twelfth capacitor C12 are connected with the output end of the third three-terminal regulator U3, and the cathode of the twelfth capacitor C12 is connected with the ground end GND.
In a preferred embodiment, as shown in fig. 1, the control circuit further comprises:
the fourteenth resistor R14 is connected to the ninth pin of the control chip MCU and the output end of the power module 1;
a thirteenth capacitor C13, which is a non-polar capacitor, connected between the ninth pin of the control chip MCU and the ground GND;
a light emitting diode D3, wherein the anode of the light emitting diode D3 is connected to the tenth pin of the control chip MCU through a fifteenth resistor R15, and the cathode of the light emitting diode D3 is connected to the ground GND;
a sixteenth resistor R16 connected between the eleventh pin of the control chip MCU and the ground GND;
a fourteenth capacitor C14, wherein the fourteenth capacitor C14 is a non-polar capacitor and is connected between the twelfth pin of the control chip MCU and the thirteenth pin of the control chip MCU;
a fifteenth capacitor C15, which is a non-polar capacitor, is connected in parallel to the fourteenth capacitor C14 and is connected between the output terminal of the power module 1 and the ground GND.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (8)
1. A control circuit for LED lighting, comprising:
a power module;
the power supply input end of the control module is connected with the output end of the power supply module;
the signal input end of the infrared induction module is connected with the first output end of the control module;
the power end of the voice module is connected with the output end of the power module, and the signal input end of the voice module is connected with the second output end of the control module;
and the power supply end of the output module is connected with the input end of the power supply module, and the signal input end of the output module is connected with the third output end of the control module.
2. The control circuit of claim 1, wherein the power module comprises:
an AC power supply;
the input end of the first voltage reduction subunit is connected to the input end of the alternating current power supply;
the input end of the second voltage reduction subunit is connected with the output end of the first voltage reduction subunit;
and the input end of the third voltage reduction subunit is connected with the output end of the second voltage reduction subunit.
3. The control circuit of claim 2, wherein the control module is a control chip, the control chip comprises at least thirteen pins, and the first pin of the control chip is connected to the output terminal of the power module.
4. The control circuit for LED lighting according to claim 3, wherein said infrared sensing module comprises:
the input end of the transmitting unit is connected with the second pin of the control chip;
and the input end of the receiving unit is connected with the third pin of the control chip.
5. The control circuit for LED lighting according to claim 4, wherein said emitting unit comprises:
the anode of the infrared emitting diode is connected with the output end of the power supply module;
the first capacitor is connected between the anode and the cathode of the infrared emitting diode;
the first resistor is connected to the cathode of the infrared emitting diode;
the second resistor is connected in parallel with the first resistor;
and the collector of the first triode is connected to the first resistor, the emitter of the first triode is connected to the ground terminal, and the base of the first triode is connected to the second pin of the control chip through a third resistor.
6. The control circuit for LED lighting according to claim 5, wherein said receiving unit comprises:
a collector of the second triode is connected with the third pin of the control chip through a fourth resistor, and an emitter of the second triode is connected with the third pin of the control chip through a second capacitor;
the third capacitor is connected to the base electrode of the second triode;
the fifth resistor is connected between the base electrode of the second triode and the collector electrode of the second triode;
the emitter of the infrared receiving triode is connected to the grounding end through a sixth resistor, and the collector of the infrared receiving triode is connected to the collector of the second triode through a seventh resistor;
and the fourth capacitor is connected in parallel with the sixth resistor.
7. The control circuit of claim 6, wherein the voice module comprises:
a first pin of the voice collection unit is connected to the ground terminal, a second pin of the voice collection unit is connected to the output terminal of the power module, a third pin of the voice collection unit is connected to a fourth pin of the control chip, and the fourth pin of the voice collection unit is connected to a fifth pin of the control chip;
a first pin of the processing unit is connected with an output end of the second buck subunit, a second pin of the processing unit is connected with the ground terminal, a third pin of the processing unit is connected with a sixth pin of the control chip, and a fourth pin of the processing unit is connected with a seventh pin of the control chip;
the fifth capacitor is connected between the first pin of the processing unit and the ground terminal;
the eighth resistor is connected between the output end of the power supply module and the fourth pin of the processing unit;
and the ninth resistor is connected between the output end of the power supply module and the third pin of the processing unit.
8. The control circuit of claim 5, wherein the output module comprises:
a first pin of the integrated chip is connected to the output end of the first voltage-reducing subunit, a second pin of the integrated chip is connected to the output end of the first voltage-reducing subunit through a sixth capacitor, a third pin of the integrated chip is connected to an eighth pin of the control chip through a tenth resistor, and a fourth pin of the integrated chip is connected to the ground end;
the grid electrode of the MOS tube is connected to a fifth pin of the integrated chip through an eleventh resistor, the source electrode of the MOS tube is connected to the grounding end, and the drain electrode of the MOS tube is connected to the input end of the alternating current power supply through a first interface;
and the twelfth resistor is connected between the eleventh resistor and the source electrode of the MOS tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921657733.7U CN211297019U (en) | 2019-09-30 | 2019-09-30 | Control circuit for LED illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921657733.7U CN211297019U (en) | 2019-09-30 | 2019-09-30 | Control circuit for LED illumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211297019U true CN211297019U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921657733.7U Active CN211297019U (en) | 2019-09-30 | 2019-09-30 | Control circuit for LED illumination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211297019U (en) |
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2019
- 2019-09-30 CN CN201921657733.7U patent/CN211297019U/en active Active
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Address after: No. 122315000 Jianlan Road, Gaoxin District, Ningbo, Zhejiang Patentee after: Ningbo sainaibi Photoelectric Technology Co.,Ltd. Address before: No.56 Keda Road, hi tech Zone, Ningbo City, Zhejiang Province, 315000 Patentee before: NINGBO SNAPPY OPTOELECTRONICS Co.,Ltd. |
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