CN216565664U - Infrared remote control night lamp circuit and night lamp - Google Patents
Infrared remote control night lamp circuit and night lamp Download PDFInfo
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- CN216565664U CN216565664U CN202121648533.2U CN202121648533U CN216565664U CN 216565664 U CN216565664 U CN 216565664U CN 202121648533 U CN202121648533 U CN 202121648533U CN 216565664 U CN216565664 U CN 216565664U
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Abstract
The utility model discloses an infrared remote control small night lamp circuit and a small night lamp, and relates to the technical field of illumination. The infrared remote control small night lamp circuit comprises a remote control receiving circuit, an MCU control circuit and an LED drive circuit. According to the utility model, the remote control receiving circuit receives the infrared remote control signal of the remote controller, the infrared remote control signal is converted into the first electric signal, the MCU control circuit converts the first electric signal into the second electric signal to control the LED driving circuit, so that the LED driving circuit can be switched on or switched off according to the requirements of people, and therefore, the small night lamp can be conveniently turned on or off by the remote controller under the condition that the small night lamp is far away from people, especially under the condition that the small night lamp cannot be found due to the fact that the surrounding is dark.
Description
Technical Field
The utility model relates to the technical field of illumination, in particular to an infrared remote control small night lamp circuit and a small night lamp.
Background
At present, people usually adopt a small night lamp to illuminate in life under the condition of not needing large-area illumination. In controlling a small night light, the small night light is typically controlled by manually adjusting control buttons located on the small night light.
Keep away from little night-light when people, need open little night-light and throw light on or turn off little night-light, often need walk before little night-light, the control button of manual little night-light of pressing accomplishes, unusual inconvenient, especially opens little night-light in needs and throws light on, and when can't find little night-light again in the dark on every side.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide the infrared remote control small night lamp circuit for controlling the small night lamp, so that people can conveniently use the small night lamp even under the condition of being far away from the small night lamp, and particularly under the condition that the small night lamp cannot be found when the periphery is painted black.
According to a first aspect of the utility model, an infrared remote control small night lamp circuit is provided, which comprises a remote control receiving circuit, an MCU control circuit and an LED drive circuit;
the remote control receiving circuit comprises a first signal output end and is used for converting a received external control signal into a first electric signal and outputting the first electric signal through the first signal output end;
the MCU control circuit comprises a first signal input end and a second signal output end, the first signal input end is connected with the first signal output end, and the MCU control circuit is used for converting the first electric signal into a second electric signal and outputting the second electric signal through the second signal output end;
the LED drive circuit is connected between the second signal output end and the LED lamp, and the LED drive circuit switches on or off the LED lamp according to the second electric signal.
According to the infrared remote control small night lamp circuit, the remote control receiving circuit receives an infrared remote control signal of the remote controller, the infrared remote control signal is converted into a first electric signal, the MCU control circuit converts the first electric signal into a second electric signal to control the LED driving circuit, so that the LED driving circuit can be switched on or off according to the requirements of people, the small night lamp can be conveniently turned on or turned off through the remote controller under the condition that people are far away from the small night lamp, and particularly under the condition that the small night lamp cannot be found due to the fact that the surrounding is dark.
In some embodiments, the remote control receiving circuit comprises an infrared remote control receiving head, a first capacitor and a first resistor;
VCC end, GND end and the first electric capacity of infrared remote control receiving head are parallelly connected, and VCC end and the first end of first resistance of infrared remote control receiving head are connected, and GND end ground connection of infrared remote control receiving head. Specifically, the remote control receiving circuit can be formed by an infrared remote control receiving head, a first capacitor and a first resistor through the connection mode, and mainly functions to receive an infrared remote control signal sent by a remote controller and convert the infrared remote control signal into a first electric signal which can be identified by the MCU control circuit.
In some embodiments, the MCU control circuit includes a control chip;
the VCC end of the control chip is connected with the second end of the first resistor, the VCC end of the control chip is connected with the NC end of the control chip and is grounded through the second capacitor, the signal end of the control chip is connected with the OUT end of the infrared remote control receiving head, and the GND of the control chip is grounded. Specifically, the MCU control circuit may be formed by the control chip through the above connection method, and mainly functions to convert the first electrical signal into a second electrical signal that can be recognized by the LED driving circuit.
In some embodiments, the LED driver circuit comprises a triode;
the emitting electrode of the triode is connected with the negative electrode of the LED lamp, the base electrode of the triode is connected with the output end of the control chip through the second resistor, and the collecting electrode of the triode is grounded. Specifically, the LED driving circuit may be formed by a triode in the above connection manner, and mainly functions to recognize the second electrical signal and control the LED lamp to be turned on or off according to the second electrical signal. The number of the triodes can be single or multiple, and when the number of the triodes is multiple, other triodes can be connected with other output ends of the control chip; the corresponding triode can be connected with a single or a plurality of LED lamps in series or in parallel, and can also be combined in series and in parallel.
In some embodiments, the circuit further comprises a first stabilizing circuit, wherein the first stabilizing circuit comprises a third resistor and a first stabilizing diode;
the first end of the third resistor is connected with the cathode of the first voltage stabilizing diode, and the anode of the first voltage stabilizing diode is grounded. Specifically, the first voltage stabilizing circuit may be formed by the third resistor and the first voltage stabilizing diode through the above connection manner, and mainly functions to provide a stable and appropriate voltage for the remote control receiving circuit and the MCU control circuit.
In some embodiments, the device further comprises a second stabilizing circuit, wherein the second stabilizing circuit comprises a second stabilizing diode;
the cathode of the second voltage stabilizing diode is connected with the second end of the third resistor, and the anode of the second voltage stabilizing diode is grounded. Specifically, the second voltage stabilizing circuit can be formed by a second voltage stabilizing diode through the connection mode, and mainly has the function of providing stable and proper voltage for the LED lamp.
In some embodiments, the current limiting circuit further comprises a fourth resistor;
the first end of the fourth resistor is connected with the positive electrode of the LED lamp, and the second end of the fourth resistor is connected with the second end of the third resistor. Specifically, the current limiting circuit may be formed by the fourth resistor through the above connection method, and mainly functions to prevent the LED lamp from being damaged due to an excessive current.
In some embodiments, the power supply further comprises a rectifying and filtering circuit, wherein the rectifying and filtering circuit comprises a rectifying bridge and a third capacitor;
the positive pole of rectifier bridge is connected with the positive pole of third electric capacity, and the negative pole of rectifier bridge is connected with the negative pole of third electric capacity, and the first alternating current end and the first alternating current of rectifier bridge connect to be connected, and the positive pole of third electric capacity is connected with the second end of third resistance, and the negative pole of third electric capacity ground connection. Specifically, the rectifying and filtering circuit can be formed by a rectifying bridge and a third capacitor through the above connection mode, and mainly functions to rectify and filter the alternating current so as to form stable direct current. The third capacitor can be connected with a sixth resistor in parallel to serve as a charge leakage resistor of the third capacitor.
In some embodiments, the voltage reducing circuit further comprises a fourth capacitor and a fifth resistor;
the fifth resistor is connected with the fourth capacitor in parallel, the first end of the fourth capacitor is connected with the second alternating current end of the rectifier bridge, and the first end of the fourth capacitor is connected with the second alternating current connector. Specifically, the voltage reduction circuit can be formed by the fourth capacitor and the fifth resistor in the above connection mode, and mainly functions to reduce the voltage of the 220V alternating current so that the voltage reduction circuit can meet the power voltage standard of the LED lamp. The fifth resistor can be used as a charge release resistor of the fourth capacitor after the mains supply is switched off; in order to protect the whole circuit, a safety resistor can be connected in series between the voltage reduction circuit and the alternating current connector.
According to a second aspect of the present invention, there is provided a small night light comprising the infrared remote control small night light circuit described above.
Compared with the prior art, the infrared remote control small night lamp circuit and the small night lamp are convenient for people to turn on or turn off the small night lamp through the remote controller under the condition of being far away from the small night lamp, and especially under the condition that the small night lamp cannot be found when the surroundings are dark.
Drawings
Fig. 1 is a schematic diagram of a module of an infrared remote control night light circuit according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of an infrared remote control night light circuit according to an embodiment of the present invention.
The reference numbers illustrate: the LED lamp comprises a voltage reduction circuit 10, a rectifying and filtering circuit 20, a first voltage stabilizing circuit 30, a remote control receiving circuit 40, an MCU control circuit 50, an LED drive circuit 60, a second voltage stabilizing circuit 70, a current limiting circuit 80 and an LED lamp 90.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1-2 schematically illustrate an infrared remote-controlled small night light circuit according to one embodiment of the present invention. As shown in fig. 1-2, the circuit includes a voltage reduction circuit 10, a rectification filter circuit 20, a first voltage stabilizing circuit 30, a remote control receiving circuit 40, an MCU control circuit 50, an LED driving circuit 60, a second voltage stabilizing circuit 70 and a current limiting circuit 80;
the voltage reduction circuit 10 is connected with external alternating current and used for reducing the voltage of the commercial power to the working voltage of the circuit;
the rectification filter circuit 20 is connected with the voltage reduction circuit 10 and is used for converting the alternating current after voltage reduction into direct current;
the first voltage stabilizing circuit 30 is connected with the rectifying and filtering circuit 20 and is used for providing stable working voltage for the remote control receiving circuit 40 and the MCU control circuit 50;
the remote control receiving circuit 40 comprises a first signal output end, and the remote control receiving circuit 40 is used for converting the received external control signal into a first electric signal and outputting the first electric signal by the first signal output end;
the MCU control circuit 50 comprises a first signal input end and a second signal output end, the first signal input end is connected with the first signal output end, and the MCU control circuit 50 is used for converting the first electric signal into a second electric signal and outputting the second electric signal by the second signal output end;
the LED driving circuit 60 is connected between the second signal output terminal and the LED lamp 90, and the LED driving circuit 60 turns on or off the LED lamp 90 according to the second electrical signal;
the second voltage stabilizing circuit 70 is connected to the rectifying and filtering circuit 20, and is configured to provide a stable operating voltage to the LED lamp 90;
the current limiting circuit 80 is connected to the LED lamp 90 for preventing the LED lamp 90 from being damaged due to excessive current.
According to the infrared remote control small night lamp circuit, the remote control receiving circuit 40 receives an infrared remote control signal of a remote controller, the infrared remote control signal is converted into a first electric signal, the MCU control circuit 50 converts the first electric signal into a second electric signal to control the LED driving circuit 60, so that the LED driving circuit 60 can be switched on or switched off according to the requirements of people, the small night lamp can be conveniently switched on or switched off through the remote controller under the condition that people are far away from the small night lamp, and particularly under the condition that the small night lamp cannot be found by the surrounding dark.
The voltage reduction circuit 10 comprises a fourth capacitor C1 and a fifth resistor R1;
the fifth resistor R1 is connected in parallel with the fourth capacitor C1, and the first terminal of the fourth capacitor C1 is AC connected to the second AC electrical connector. Specifically, the voltage dropping circuit 80 may be formed by the fourth capacitor C1 and the fifth resistor R1 connected in the above manner, and mainly functions to drop the voltage of the 220V ac power, so that the voltage drops can meet the power voltage standard of the LED lamp 90. The fifth resistor R1 can be used as a charge-discharging resistor of the fourth capacitor C1 after the mains supply is turned off; meanwhile, in order to protect the whole circuit, a safety resistor F1 may be connected in series between the voltage reduction circuit 10 and the AC power connector AC.
The rectifying and filtering circuit 20 comprises a rectifying bridge DB1 and a third capacitor C2;
the positive electrode of the rectifier bridge DB1 is connected with the positive electrode of the third capacitor C2, the negative electrode of the rectifier bridge DB1 is connected with the negative electrode of the third capacitor C2, the first alternating current end of the rectifier bridge DB1 is connected with the first alternating current connector AC, the second alternating current end of the rectifier bridge DB1 is connected with the first end of the fourth capacitor C1, and the negative electrode of the third capacitor C2 is grounded. Specifically, the rectifying-smoothing circuit 20 may be formed by the rectifying bridge DB1 and the third capacitor C2 through the above connection, and mainly functions to rectify and smooth the alternating current to form a stable direct current. The third capacitor C2 may also be connected in parallel with a sixth resistor R4 to serve as a charge discharging resistor of the third capacitor C2.
The first voltage stabilizing circuit 30 comprises a third resistor R7 and a first voltage stabilizing diode D2;
the first end of the third resistor R7 is connected to the cathode of the first zener diode D2, the second end of the third resistor R7 is connected to the anode of the third capacitor C2, and the anode of the first zener diode D2 is grounded. Specifically, the first voltage regulator circuit 40 may be formed by the third resistor R7 and the first voltage regulator diode D2 through the above connection manner, and mainly functions to provide a stable and appropriate voltage for the remote control receiving circuit 40 and the MCU control circuit 50.
The remote control receiving circuit 40 comprises an infrared remote control receiving head FR, a first capacitor C4 and a first resistor R6;
the model of infrared remote control receiving head FR is LF0038QHLL-2, has VCC end (3 rd foot), GND end (2 nd foot) and OUT end (1 st foot), and the VCC end, the GND end and the first electric capacity C4 of infrared remote control receiving head FR are parallelly connected, and the VCC end and the first end of first resistance R6 of infrared remote control receiving head FR are connected, and the GND end ground connection of infrared remote control receiving head FR. Specifically, the remote control receiving circuit 40 may be formed by the infrared remote control receiving head FR, the first capacitor C4 and the first resistor R6 through the above connection manner, and mainly functions to receive an infrared remote control signal sent by the remote controller and convert the infrared remote control signal into a first electrical signal that can be identified by the MCU control circuit 50.
The MCU control circuit 50 comprises a control chip U1, the model of the control chip U1 is HT6167/SOP-8, and the MCU control circuit comprises 8 pins, wherein the 4 th pin is a signal pin, the 6 th pin and the 8 th pin are output pins, and the 7 th pin is a blank pin;
the VCC end of the control chip U1 is connected with the second end of the first resistor R6, the 1 st pin (VCC end) of the control chip U1 is connected with the 7 th pin (NC end) of the control chip U1 and is grounded through the second capacitor C3, the 4 th pin (first signal input end) of the signal end of the control chip U1 is connected with the OUT end (first signal output end) of the infrared remote control receiving head FR, and the 2 nd pin (GND end) of the control chip U1 is grounded. Specifically, the MCU control circuit 50 may be formed by the control chip U1 through the above connection manner, and mainly functions to convert the first electrical signal into a second electrical signal that can be recognized by the LED driving circuit 60, where the second electrical signal is a high-level or low-level signal.
The LED driving circuit 60 includes a first transistor Q1 and a second transistor Q2, and the LED lamp 90 includes a first LED lamp W and a second LED lamp Y;
an emitting electrode of the first triode Q1 is connected with a negative electrode of the LED lamp W, a base electrode of the first triode Q1 is connected with a 6 th pin (a second output end) of an output end of the control chip U1 through a second resistor R3, and a collector electrode of the first triode Q1 is grounded;
an emitting electrode of the second triode Q2 is connected with a negative electrode of the LED lamp Y, a base electrode of the second triode Q2 is connected with a pin 8 of the control chip U1 through a resistor R2, and a collector electrode of the second triode Q2 is grounded. The pin 8 of the control chip U1 is a third output terminal, and has the same function as the second output terminal, and accordingly generates a third electrical signal, specifically, the LED driving circuit 60 may be formed by the first triode Q1 and the second triode Q2 through the above connection manner, and mainly functions to identify the second electrical signal and the third electrical signal, and control the first LED lamp W to be turned on or off according to the second electrical signal, and control the second LED lamp Y to be turned on or off according to the third electrical signal, that is, when the second electrical signal is a high level signal, the Q1 is turned on, the first LED lamp W is bright, when the second electrical signal is a low level signal, the Q1 is cut off, the LED lamp W is off, when the third electrical signal is a high level signal, the Q2 is turned on, the first LED lamp Y is bright, when the third electrical signal is a low level signal, the Q2 is cut off, and the LED lamp Y is off. The number of the triodes can be single or multiple, and when the number of the triodes is multiple, other triodes can be connected with other pins with the same function as the pin 6 or the pin 8 of the control chip; the corresponding triode can be connected with a single or a plurality of LED lamps in series or in parallel, and can also be combined in series and in parallel.
The second stabilizing circuit 70 includes a second stabilizing diode D1;
the cathode of the second zener diode D1 is connected to the second end of the third resistor R7, and the anode of the second zener diode D1 is grounded. Specifically, the second voltage regulator circuit may be formed by the second voltage regulator diode D1 connected in the above manner, and mainly functions to provide a stable and appropriate voltage for the first LED lamp W and the second LED lamp Y.
The current limiting circuit 80 includes a fourth resistor R5;
the first end of the fourth resistor R5 is connected with the anode of the LED lamp W, and the second end of the fourth resistor R5 is connected with the second end of the third resistor R7. Specifically, the current limiting circuit 60 may be formed by the fourth resistor R5 through the above connection method, and mainly functions to prevent the LED lamp W from being damaged due to an excessive current.
According to a second aspect of the present invention, there is provided a small night light comprising the infrared remote control small night light circuit described above. The night lamp has the advantages that people can conveniently turn on or turn off the night lamp through the remote controller under the condition of being far away from the night lamp, and particularly under the condition that the night lamp cannot be found when the surrounding is painted black.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.
Claims (9)
1. An infrared remote control night light circuit, comprising:
the remote control receiving circuit comprises a first signal output end, and is used for converting a received external control signal into a first electric signal and outputting the first electric signal through the first signal output end; the remote control receiving circuit comprises an infrared remote control receiving head, a first capacitor and a first resistor; the VCC end and the GND end of the infrared remote control receiving head are connected with the first capacitor in parallel, the VCC end of the infrared remote control receiving head is connected with the first end of the first resistor, and the GND end of the infrared remote control receiving head is grounded;
the MCU control circuit comprises a first signal input end and a second signal output end, the first signal input end is connected with the first signal output end, and the MCU control circuit is used for converting the first electric signal into a second electric signal and outputting the second electric signal through the second signal output end;
and the LED driving circuit is connected between the second signal output end and the LED lamp, and the LED driving circuit switches on or off the LED lamp according to the second electric signal.
2. The infrared remote control small night lamp circuit of claim 1, wherein the MCU control circuit comprises a control chip;
the VCC end of the control chip is connected with the second end of the first resistor, the VCC end of the control chip is connected with the NC end of the control chip and is grounded through a second capacitor, the signal end of the control chip is connected with the OUT end of the infrared remote control receiving head, and the GND end of the control chip is grounded.
3. The infrared remote small night light circuit of claim 2, wherein the LED driver circuit comprises a triode;
the emitting electrode of the triode is connected with the negative electrode of the LED lamp, the base electrode of the triode is connected with the output end of the control chip through a second resistor, and the collecting electrode of the triode is grounded.
4. The infrared remote control night light circuit as set forth in any one of claims 1 to 3 further comprising a first voltage regulator circuit, the first voltage regulator circuit comprising a third resistor and a first zener diode;
the first end of the third resistor is connected with the negative electrode of the first voltage stabilizing diode, and the positive electrode of the first voltage stabilizing diode is grounded.
5. The infrared remote controlled small night light circuit of claim 4 further comprising a second voltage regulator circuit, the second voltage regulator circuit comprising a second voltage regulator diode;
and the cathode of the second voltage stabilizing diode is connected with the second end of the third resistor, and the anode of the second voltage stabilizing diode is grounded.
6. The infrared remote control night light circuit of claim 4 further comprising a current limiting circuit, the current limiting circuit comprising a fourth resistor;
the first end of the fourth resistor is connected with the anode of the LED lamp, and the second end of the fourth resistor is connected with the second end of the third resistor.
7. The infrared remote control small night lamp circuit as claimed in any one of claims 5 to 6, further comprising a rectifying and filtering circuit, wherein the rectifying and filtering circuit comprises a rectifying bridge and a third capacitor;
the positive pole of the rectifier bridge is connected with the positive pole of the third capacitor, the negative pole of the rectifier bridge is connected with the negative pole of the third capacitor, the first alternating current end of the rectifier bridge is connected with the first alternating current connector, the positive pole of the third capacitor is connected with the second end of the third resistor, and the negative pole of the third capacitor is grounded.
8. The infrared remote control night light circuit of claim 7 further comprising a voltage dropping circuit, the voltage dropping circuit comprising a fourth capacitor and a fifth resistor;
the fifth resistor is connected with the fourth capacitor in parallel, the first end of the fourth capacitor is connected with the second alternating current end of the rectifier bridge, and the first end of the fourth capacitor is connected with the second alternating current connector.
9. A small night light comprising the infrared remote small night light circuit of any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121648533.2U CN216565664U (en) | 2021-07-19 | 2021-07-19 | Infrared remote control night lamp circuit and night lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121648533.2U CN216565664U (en) | 2021-07-19 | 2021-07-19 | Infrared remote control night lamp circuit and night lamp |
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| Publication Number | Publication Date |
|---|---|
| CN216565664U true CN216565664U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121648533.2U Active CN216565664U (en) | 2021-07-19 | 2021-07-19 | Infrared remote control night lamp circuit and night lamp |
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| Country | Link |
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| CN (1) | CN216565664U (en) |
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2021
- 2021-07-19 CN CN202121648533.2U patent/CN216565664U/en active Active
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