CN217011243U - Hand-sweeping induction circuit - Google Patents
Hand-sweeping induction circuit Download PDFInfo
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- CN217011243U CN217011243U CN202220667421.XU CN202220667421U CN217011243U CN 217011243 U CN217011243 U CN 217011243U CN 202220667421 U CN202220667421 U CN 202220667421U CN 217011243 U CN217011243 U CN 217011243U
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- control element
- hand
- tube
- power supply
- infrared transmitting
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Abstract
The utility model discloses a hand-sweeping sensing circuit, which comprises a control element (U1) serving as a main control IC; the power supply (H1), the power supply (H1) is connected with a linear voltage regulator (U2), the high voltage VIN of the power supply (H1) is converted into the low voltage VDD, and the power is supplied to the control element (U1); the infrared transmitting and receiving tube, the control element (U1) is connected with the infrared transmitting and receiving tube through the MOS tube, the infrared transmitting tube is connected with a variable resistor (R2) in series and is used for adjusting the output power of the infrared transmitting tube; the two LED indicator lamps are used for displaying the state of the hand sweep, the control element (U1) is respectively connected with one LED load lamp through two PWM ports by MOS tubes, and the brightness of the LED load lamp is adjusted through the duty ratio of PWM. The utility model is suitable for a non-contact control circuit, the infrared receiving and transmitting tube is controlled by the arranged control element (U1), the non-contact control of electronic products can be realized, the hand scanning sensing circuit can be embedded into the products, the decoration is beautiful, and the use effect is improved.
Description
Technical Field
The utility model belongs to the technical field of induction circuits, and particularly relates to a hand-sweeping induction circuit.
Background
Along with the improvement of the level of people, the requirements of people on intelligent home furnishing are higher and higher, the home furnishing is taken as a platform, facilities related to home living are integrated by utilizing a comprehensive wiring technology, a network communication technology, a safety precaution technology, an automatic control technology and an audio and video technology, an efficient management system of home facilities and family schedule affairs is constructed, the home furnishing safety, convenience, comfortableness and artistry are improved, and the environment-friendly and energy-saving living environment is realized;
the hand scanning induction circuit can realize non-contact and realize the purpose of controlling the electronic product through the induction control circuit;
general switch in the market now needs externally, influences pleasing to the eye on the wall, and most of touch switch can leave the fingerprint on furniture, and the hand is swept induction circuit and can be applied to various furniture that need the switch, can embedded furniture in, realizes contactless turning on light, still can switch light colour and luminance according to the demand.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solve the problems of the prior art and to provide a hand-scanning sensing circuit.
The technical scheme adopted by the utility model is as follows:
a hand sweep sensing circuit comprising:
a control element (U1) as a master IC;
the power supply (H1), the power supply (H1) is connected with a linear voltage regulator (U2), the high voltage VIN of the power supply (H1) is converted into the low voltage VDD, and power is supplied to the control element (U1);
the infrared transmitting and receiving tube comprises an infrared transmitting tube and an infrared receiving tube, a control element (U1) is connected with the infrared transmitting and receiving tube through an MOS tube, and the infrared transmitting tube is connected with a variable resistor (R2) in series and used for adjusting the output power of the infrared transmitting tube;
the two LED indicator lamps are electrically connected with the control element (U1) and used for displaying the state of the hand sweep;
the LED load lamp comprises two external ports, a control element (U1) is connected with one external port through two PWM ports by MOS tubes respectively, and the brightness of the LED load lamp is adjusted through the duty ratio of PWM.
Preferably, the control unit (U1) is provided with an interface PA0, and the interface PA0 is coupled to the negative electrode of the infrared receiving tube through a capacitor (C4).
Preferably, the control unit (U1) further comprises interfaces PA5 and PA7, the PA5 and PA7 are respectively connected with the LED lamp through wires, and a resistor (R9) and a resistor (R8) are respectively connected in series between the PA5, PA7 and the LED lamp.
Preferably, a resistor (R6) and a resistor (R7) are connected in series between the two PWM ports and the two external ports, respectively.
Preferably, a capacitor (C1) is connected in parallel between the power supply (H1) and the linear voltage regulator (U2), and one end of the capacitor (C1) far away from the power supply (H1) is grounded.
Preferably, the linear voltage stabilizing device (U2) is connected with a capacitor (C3) in parallel.
In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:
in the utility model, a linear voltage stabilizing device U2 of a power supply voltage reducing circuit converts a high voltage VIN of a power supply H1 into a low voltage VDD to supply power to a control element U1, the control element U1 drives an infrared transmitting and receiving tube through an MOS tube, the output power of the infrared transmitting tube is adjusted by changing the size of a resistor R2, then the received signal is fed back to the control element U1 through the infrared receiving tube according to the voltage value, when a hand sweeps from the right front, the signal transmitted by the infrared transmitting tube is received by the infrared receiving tube through the reflection of the hand, and the control element U1 judges the hand sweeping action by adjusting the threshold setting of the received signal.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the utility model.
Referring to fig. 1, a hand sweep sensing circuit includes:
a control element U1 as a master IC;
the power supply H1 is connected with the power supply H1 and is connected with a linear voltage regulator U2, and the high voltage VIN of the power supply H1 is converted into the low voltage VDD to supply power to the control element U1;
the infrared transmitting and receiving tube comprises an infrared transmitting tube and an infrared receiving tube, the control element U1 is connected with the infrared transmitting and receiving tube through an MOS tube, and the infrared transmitting tube is connected with a variable resistor R2 in series and used for adjusting the output power of the infrared transmitting tube;
the two LED indicator lamps are electrically connected with the control element U1 and used for displaying the state of the hand sweep;
the control element U1 is respectively connected with an external port through two PWM ports by MOS tubes, and the brightness of the LED load lamp is adjusted through the duty ratio of PWM.
The control element U1 is provided with an interface PA0, the interface PA0 is coupled to the negative electrode of the infrared receiving tube through a capacitor C4, the control element U1 is further provided with interfaces PA5 and PA7, the PA5 and PA7 are respectively connected with an LED lamp through conducting wires, a resistor R9 and a resistor R8 are respectively connected in series between the PA5, the PA7 and the LED lamp, a resistor R6 and a resistor R7 are respectively connected in series between the two PWM ports and the two external ports, a capacitor C1 is connected in parallel between the power supply H1 and the linear voltage regulator U2, one end of the capacitor C1, far away from the power supply H1, is grounded, and a capacitor C3 is connected in parallel to the linear voltage regulator U2.
By adopting the technical scheme:
a linear voltage stabilizing device U2 of a power supply voltage reducing circuit converts a high voltage VIN of a power supply H1 into a low voltage VDD to supply power to a control element U1, the control element U1 drives an infrared transmitting and receiving tube through an MOS tube, the output power of the infrared transmitting tube is adjusted by changing the size of a resistor R2, then a received signal is fed back to the control element U1 through the infrared receiving tube according to the voltage value, when a hand sweeps from the right front, the signal transmitted by the infrared transmitting tube is received by the infrared receiving tube through the reflection of the hand, and the control element U1 judges the hand sweeping action by adjusting the threshold setting of the received signal;
finally, two LED indicator lights controlled by the control element U1 are displayed as a status of the hand sweep; meanwhile, the LED load lamp load is driven by the two PWM ports through the driving MOS tube, and the brightness of the illuminating lamp is adjusted through the duty ratio of PWM.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the utility model, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (6)
1. A hand sweep sensing circuit, comprising:
a control element (U1) as a master IC;
the power supply (H1), the power supply (H1) is connected with a linear voltage regulator (U2), the high voltage VIN of the power supply (H1) is converted into the low voltage VDD, and power is supplied to the control element (U1);
the infrared transmitting and receiving tube comprises an infrared transmitting tube and an infrared receiving tube, a control element (U1) is connected with the infrared transmitting and receiving tube through an MOS tube, and the infrared transmitting tube is connected with a variable resistor (R2) in series and used for adjusting the output power of the infrared transmitting tube;
the two LED indicator lamps are electrically connected with the control element (U1) and used for displaying the state of the hand sweep;
the LED load lamp comprises two external ports, a control element (U1) is respectively connected with one external port through two PWM ports and an MOS tube, and the brightness of the LED load lamp is adjusted through the duty ratio of PWM.
2. A hand-sweep sensing circuit as defined in claim 1, wherein: the control element (U1) is provided with an interface PA0, and the interface PA0 is coupled into the negative electrode of the infrared receiving tube through a capacitor (C4).
3. A hand-sweep sensing circuit as defined in claim 1, wherein: the control element (U1) is further provided with interfaces PA5 and PA7, the PA5 and PA7 are respectively connected with an LED lamp through leads, and a resistor (R9) and a resistor (R8) are respectively connected in series between the PA5 and PA7 and the LED lamp.
4. A hand sweep sensing circuit as defined in claim 1, wherein: and a resistor (R6) and a resistor (R7) are respectively connected in series between the two PWM ports and the two external ports.
5. A hand sweep sensing circuit as defined in claim 1, wherein: a capacitor (C1) is connected in parallel between the power supply (H1) and the linear voltage regulator (U2), and one end, far away from the power supply (H1), of the capacitor (C1) is grounded.
6. A hand-sweep sensing circuit as defined in claim 1, wherein: the linear voltage stabilizing device (U2) is connected with a capacitor (C3) in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220667421.XU CN217011243U (en) | 2022-03-25 | 2022-03-25 | Hand-sweeping induction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220667421.XU CN217011243U (en) | 2022-03-25 | 2022-03-25 | Hand-sweeping induction circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217011243U true CN217011243U (en) | 2022-07-19 |
Family
ID=82372843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220667421.XU Active CN217011243U (en) | 2022-03-25 | 2022-03-25 | Hand-sweeping induction circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217011243U (en) |
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2022
- 2022-03-25 CN CN202220667421.XU patent/CN217011243U/en active Active
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