CN210225835U - High-power solar lamp control circuit based on microwave human body induction - Google Patents
High-power solar lamp control circuit based on microwave human body induction Download PDFInfo
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- CN210225835U CN210225835U CN201921143252.4U CN201921143252U CN210225835U CN 210225835 U CN210225835 U CN 210225835U CN 201921143252 U CN201921143252 U CN 201921143252U CN 210225835 U CN210225835 U CN 210225835U
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- 230000006698 induction Effects 0.000 title claims description 20
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 49
- 238000005070 sampling Methods 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
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Abstract
The utility model discloses a high-power solar lamp control circuit based on human response of microwave, including control circuit, power supply circuit, the human response circuit of microwave, output circuit, solar cell, lithium cell, control circuit is connected with power supply circuit, radio frequency circuit, output circuit respectively for control power supply circuit, output circuit, receive the detected signal of the human response circuit output of microwave, the human response circuit of microwave is connected with power supply circuit, output circuit is connected with the lithium cell, solar cell, lithium cell parallel connection, the lithium cell is used for providing the electric energy to power supply circuit, output circuit, power supply circuit is used for providing the electric energy for control circuit, the human response circuit of microwave. This application provides the power of chip through the mode of stepping up earlier afterwards step down, has guaranteed the stability of chip voltage, has avoided the power fluctuation to bring the interference for the chip, has improved the degree of accuracy that the radar detected.
Description
Technical Field
The utility model belongs to the technical field of the solar lamp technique and specifically relates to a high-power solar lamp control circuit based on human response of microwave.
Background
With the increase of environmental awareness of people, the concept of reasonable utilization of resources is gradually accepted and strengthened. The microwave radar induction solar lamp is also a product which is energy-saving and reasonably utilizes resources, in the existing radar induction solar lamp product, the power supply of a radar antenna part and the input of chip power supply are directly connected from lithium battery input, the general power is 2-5W, but under the condition of the power, the control module can generate the phenomena of higher temperature, damage of elements and the like. Under the condition of high power, when a load (a lamp group) is in full-scale operation, the input voltage of the lithium battery is pulled down by the load; or, when the lithium battery voltage has a so-called power supply shortage, the voltage collected by the AD port on the periphery of the chip may fluctuate, but since the RF signal collected by the chip has a small magnitude deviation of 10/65535 v, such fluctuation may cause the chip to interfere with the judgment of the RF signal. The jitter of MOS pipe in the module can influence the operating condition of radar antenna, produce and not respond to the phenomenon.
Therefore, how to reduce the change of the working state of the radar antenna caused by the change of the voltage of the lithium battery and influence the detection of the human body in the environment is a problem to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-power solar lamp control circuit based on human response of microwave, through setting up control circuit, break off the human response circuit of microwave and its power during the daytime, put through the human response circuit of microwave and be used for detecting whether there is the human body to exist in the certain limit when dark, its power adopts the mode of stepping up the back step-down, has guaranteed that the power does not have undulant, improves the detection accuracy, practices thrift the electric energy.
The above technical scheme of the utility model can be realized through following technical scheme to the purpose:
the utility model provides a high-power solar lamp control circuit based on human response of microwave, includes control circuit, power supply circuit, the human response circuit of microwave, output circuit, solar cell, lithium cell, and control circuit is connected with power supply circuit, radio frequency circuit, output circuit respectively for control power supply circuit, output circuit, receive the detection signal of the human response circuit output of microwave, the human response circuit of microwave is connected with power supply circuit, output circuit is connected with the lithium cell, solar cell, lithium cell parallel connection, the lithium cell is used for providing the electric energy to power supply circuit, output circuit, power supply circuit is used for providing the electric energy for control circuit, the human response circuit of microwave.
The utility model discloses further set up to: the power supply circuit comprises a power supply control circuit, a boosting circuit and a voltage reduction circuit which are connected in sequence, wherein the input end of the power supply control circuit is connected with the output end of the lithium battery.
The utility model discloses further set up to: the microwave human body induction circuit is connected with the output end of the booster circuit, and the booster circuit is used for providing electric energy for the microwave human body induction circuit.
The utility model discloses further set up to: the control circuit is connected with the output end of the voltage reduction circuit and used for providing electric energy for the control circuit.
The utility model discloses further set up to: the power control circuit comprises a triode and a first switch tube, the base of the triode is connected with the first output end of the control circuit through a first resistor, the emitting electrode of the triode is connected with the negative electrode of the lithium battery, the collecting electrode of the triode is connected with the control end of the first switch tube and one end of a second resistor, the second end of the second resistor is connected with the input end of the first switch tube and the positive electrode of the lithium battery, and the output end of the first switch tube is connected with the booster circuit.
The utility model discloses further set up to: the boost circuit comprises an inductor and a three-terminal power supply circuit, wherein one end of the inductor is connected with the output of the power supply control circuit, the other end of the inductor is connected with the input end of the three-terminal power supply circuit, the second end of the three-terminal power supply circuit is connected with the cathode of the lithium battery, and the output end of the three-terminal power supply circuit is connected with the step-down circuit.
The utility model discloses further set up to: the microwave human body induction circuit comprises a high-frequency triode, an antenna, a filter circuit 1 and a filter circuit 2, wherein the base of the high-frequency triode is connected with the transmitting end of the antenna and one end of a third resistor, the other end of the third resistor and the collector of the high-frequency triode are connected with the output end of a booster circuit, the emitter of the high-frequency triode is connected with the receiving end of the antenna, the receiving end of the antenna is connected with the filter circuit 2, the output end of the filter circuit 2 is connected with a control circuit, the filter circuit 1 is connected with the output end of the booster circuit and used for filtering the output of the booster circuit, and the filter circuit 1 and the filter circuit 2 share.
The utility model discloses further set up to: the output circuit comprises a second switching tube and a third switching tube and is used for driving the large-function solar lamp.
The utility model discloses further set up to: the solar cell sampling circuit is connected with the solar cell and the control circuit and used for collecting the voltage of the solar cell and transmitting the collected voltage to the control circuit.
The utility model discloses further set up to: the lithium battery sampling circuit is connected with the lithium battery and the control circuit and used for collecting the voltage of the lithium battery and transmitting the collected voltage to the control circuit.
Compared with the prior art, the utility model has the beneficial technical effects that:
1. the power supply of the chip is provided by a mode of firstly boosting and then reducing voltage, so that the stability of the voltage of the chip is ensured, the interference of power supply fluctuation on the chip is avoided, and the accuracy of radar detection is improved;
2. furthermore, the power supply mode of not supplying power to the chip in daytime and supplying power to the chip only in dark is adopted, and electric energy is saved.
Drawings
Fig. 1 is a schematic circuit diagram of an embodiment of the present invention;
fig. 2 is a schematic diagram of a power circuit according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a specific power circuit structure according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a microwave human body induction circuit according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an output circuit according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a control circuit according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Detailed description of the invention
The utility model discloses a high-power solar lamp control circuit based on microwave human body induction, as shown in figure 1, including control circuit, power supply circuit, microwave human body induction circuit, output circuit, solar cell, lithium cell, control circuit is connected with power supply circuit, microwave human body induction circuit, output circuit respectively for control power supply circuit, output circuit, receive the detection signal of microwave human body induction circuit output; the human response circuit of microwave is connected with power supply circuit, output circuit is connected with the lithium cell, solar cell, lithium cell parallel connection, the lithium cell is used for providing the electric energy to power supply circuit, output circuit, power supply circuit is used for providing the electric energy for control circuit, the human response circuit of microwave.
The solar lamp control circuit also comprises a lithium battery voltage sampling circuit and a solar battery voltage sampling circuit, wherein the lithium battery is used for storing electric energy generated by the solar battery, and the lithium battery voltage sampling circuit is used for sampling the voltage of the lithium battery and transmitting the voltage to the control circuit; the solar cell voltage sampling circuit is used for sampling the voltage of the lithium battery and transmitting the voltage to the control circuit.
As shown in fig. 2, the power circuit comprises a power control circuit, a boost circuit and a buck circuit which are connected in sequence, wherein the input end of the power control circuit is connected with the lithium battery, the microwave human body induction circuit is connected with the output end of the boost circuit, and the control circuit is connected with the output end of the buck circuit.
The power control circuit is used for controlling whether the boost circuit enters a working state or not, when the power control circuit is switched on, the boost circuit is connected with the lithium battery and used for boosting the voltage of the lithium battery and then providing the boosted voltage for the microwave human body induction circuit and the voltage reduction circuit, and when the power control circuit is switched off, the boost circuit is disconnected with the lithium battery and used for reducing the power consumption of the boost circuit.
The voltage reduction circuit is used for providing stable voltage for the control circuit after reducing the voltage after being boosted.
After the voltage of lithium cell passed through boost circuit, improved the stability of voltage, reduced the shake, furtherly, again through the step-down circuit, make voltage more steady, make control circuit can not influence the degree of accuracy that detects because of mains voltage's shake produces the interference, realize accurate detection.
The microwave human body induction circuit transmits radio frequency signals, receives the reflected radio frequency signals, detects whether human body moves within a certain range according to the difference between the transmitted radio frequency signals and the received radio frequency signals, transmits a detection result to the control circuit, and the control circuit controls whether the output circuit enters a working state according to the detection result.
The output circuit is used for switching on or off the illuminating lamp according to the control signal of the control circuit, and is used for illuminating when a human body approaches and switching off the illuminating lamp when no human body approaches, so that energy is saved.
Detailed description of the invention
As shown in fig. 3, the power control circuit includes a transistor Q2 and a switch Q1, a base of the transistor Q2 is connected to an output terminal SENS of the control circuit through a resistor R4, an emitter thereof is connected to a negative electrode of the lithium battery, a collector thereof is connected to a control terminal of the switch Q1 and one end of a resistor R3, the other end of the resistor R3 is connected to an input terminal of the switch Q1 and a positive electrode of the lithium battery, and an output terminal of the switch Q1 is connected to the boost circuit.
The boost circuit comprises an inductor L1 and a three-terminal power circuit U2, wherein one end of the inductor L1 is connected with the output of the power control circuit, the other end of the inductor L1 is connected with the input end of the three-terminal power circuit U2, the second end of the three-terminal power circuit U2 is connected with the negative electrode of the lithium battery, the output end of the three-terminal power circuit U2 is connected with the filter capacitors C1 and C3 and the step-down circuit, and the boost circuit is used for boosting.
The voltage reduction circuit is composed of a three-terminal voltage regulator U3, the output end of the voltage reduction circuit is connected with filter capacitors C4 and C5, and the voltage reduction circuit is used for reducing the boosted 5V voltage to 3.3V voltage and providing the voltage for the control circuit.
Detailed description of the invention
As shown in fig. 4, the microwave human body induction circuit includes a triode Q3, an antenna, a filter circuit 1 and a filter circuit 2, wherein the base of the triode Q3 is connected with the transmitting terminal of the antenna and one end of a resistor R7, the other end of the resistor R7 and the collector of the triode Q3 are connected with the output terminal of the boost circuit, i.e. the positive pole of the 5V power supply, the emitting electrode of the triode Q3 is connected with the receiving terminal of the antenna, the receiving terminal of the antenna is connected with the filter circuit 2, and the output terminal of the filter circuit 2 is connected with the control circuit.
The triac Q3 is placed in an unstable state for forming an oscillation that transmits radio frequency signals through the antenna radiating end. The antenna receiving end receives the reflected radio frequency signal and the transmitted radio frequency signal, the reflected radio frequency signal and the transmitted radio frequency signal are superposed, and the superposed radio frequency signal passes through the filter circuit 2 and then is transmitted to the control circuit.
The filter circuit 1 is connected with the output end of the booster circuit and used for filtering the output of the booster circuit, and comprises filter capacitors C6, C7, C8 and C9.
The filter circuit 2 comprises a filter capacitor C11, resistors R12, R10, R9 and a capacitor C10. The capacitor C11 and the resistor R12 are connected in parallel with the antenna receiving end and used for filtering signals at the antenna receiving end, and the resistor R10 and the capacitor C10 form an integrating circuit which is connected with the antenna receiving end and used for filtering the signals at the antenna receiving end again. The resistor R9 is used for connection between the filter circuit 2 and the control circuit.
The filter circuit 1 and the filter circuit 2 share a radio frequency ground.
As shown in fig. 5, the output circuit includes switching tubes Q4, Q5, and the control poles of the switching tubes Q4, Q5 are connected with each other, the output ends thereof are connected with each other, and the input ends thereof are connected with each other, that is, the current of the illuminating lamp is expanded for driving the solar lamp with large function. The output ends of the switching tubes Q4 and Q5 are connected with the negative electrode of the LED lamp, and the positive electrode of the LED lamp is connected with the positive electrode of the lithium battery through the current-limiting resistors RS1 and RS 2. The current limiting resistors RS1 and RS2 are connected in parallel.
As shown in fig. 6, the control circuit includes a control integrated circuit U1.
The control circuit controls the on or off of the power supply circuit by controlling the on or off of a switching tube in the power supply control circuit.
The control circuit judges whether the solar cell is in the daytime or not according to the sampling voltage of the solar cell. And in the daytime, the booster circuit is disconnected from the lithium battery, and in the dark, the booster circuit is connected with the lithium battery.
The solar cell adopts a solar photovoltaic panel.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. A high-power solar lamp control circuit based on microwave human body induction is characterized in that: including control circuit, power supply circuit, the human response circuit of microwave, output circuit, solar cell, lithium cell, control circuit is connected with power supply circuit, radio frequency circuit, output circuit respectively for control power supply circuit, output circuit, receive the detected signal of the human response circuit output of microwave, the human response circuit of microwave is connected with power supply circuit, output circuit is connected with the lithium cell, solar cell, lithium cell parallel connection.
2. The control circuit of claim 1, wherein: the power supply circuit comprises a power supply control circuit, a boosting circuit and a voltage reduction circuit which are connected in sequence, wherein the input end of the power supply control circuit is connected with the output end of the lithium battery.
3. The control circuit of claim 2, wherein: the microwave human body induction circuit is connected with the output end of the booster circuit, and the booster circuit is used for providing electric energy for the microwave human body induction circuit.
4. The control circuit of claim 2, wherein: the control circuit is connected with the output end of the voltage reduction circuit and used for providing electric energy for the control circuit.
5. The control circuit of claim 2, wherein: the power control circuit comprises a triode and a first switch tube, the base of the triode is connected with the first output end of the control circuit through a first resistor, the emitting electrode of the triode is connected with the negative electrode of the lithium battery, the collecting electrode of the triode is connected with the control end of the first switch tube and one end of a second resistor, the second end of the second resistor is connected with the input end of the first switch tube and the positive electrode of the lithium battery, and the output end of the first switch tube is connected with the booster circuit.
6. The control circuit of claim 2, wherein: the boost circuit comprises an inductor and a three-terminal power supply circuit, wherein one end of the inductor is connected with the output of the power supply control circuit, the other end of the inductor is connected with the input end of the three-terminal power supply circuit, the second end of the three-terminal power supply circuit is connected with the cathode of the lithium battery, and the output end of the three-terminal power supply circuit is connected with the step-down circuit.
7. The control circuit of claim 1, wherein: the microwave human body induction circuit comprises a high-frequency triode, an antenna, a filter circuit 1 and a filter circuit 2, wherein the base of the high-frequency triode is connected with the transmitting end of the antenna and one end of a third resistor, the other end of the third resistor and the collector of the high-frequency triode are connected with the output end of a booster circuit, the emitter of the high-frequency triode is connected with the receiving end of the antenna, the receiving end of the antenna is connected with the filter circuit 2, the output end of the filter circuit 2 is connected with a control circuit, the filter circuit 1 is connected with the output end of the booster circuit and used for filtering the output of the booster circuit, and the filter circuit 1 and the filter circuit 2 share.
8. The control circuit of claim 1, wherein: the output circuit comprises a second third switching tube used for driving the high-power solar lamp.
9. The control circuit of claim 1, wherein: the solar cell sampling circuit is connected with the solar cell and the control circuit and used for collecting the voltage of the solar cell and transmitting the collected voltage to the control circuit.
10. The control circuit of claim 1, wherein: the lithium battery sampling circuit is connected with the lithium battery and the control circuit and used for collecting the voltage of the lithium battery and transmitting the collected voltage to the control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921143252.4U CN210225835U (en) | 2019-07-20 | 2019-07-20 | High-power solar lamp control circuit based on microwave human body induction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921143252.4U CN210225835U (en) | 2019-07-20 | 2019-07-20 | High-power solar lamp control circuit based on microwave human body induction |
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| Publication Number | Publication Date |
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| CN210225835U true CN210225835U (en) | 2020-03-31 |
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| CN201921143252.4U Active CN210225835U (en) | 2019-07-20 | 2019-07-20 | High-power solar lamp control circuit based on microwave human body induction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110290620A (en) * | 2019-07-20 | 2019-09-27 | 瑞德探测技术（深圳）有限公司 | A kind of big-power solar lamp control circuit and method based on microwave human body sensing |
-
2019
- 2019-07-20 CN CN201921143252.4U patent/CN210225835U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110290620A (en) * | 2019-07-20 | 2019-09-27 | 瑞德探测技术（深圳）有限公司 | A kind of big-power solar lamp control circuit and method based on microwave human body sensing |
| CN110290620B (en) * | 2019-07-20 | 2024-02-20 | 深圳市全智芯科技有限公司 | High-power solar lamp control circuit and method based on microwave human body induction |
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Effective date of registration: 20200423 Address after: 518000 Block 301, Tsinghua Ziguang Information Port A, Langshan Road, Xili Street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN ASCHIP TECH Co.,Ltd. Address before: 518055 Block 315, Tsinghua Ziguang Information Port A, Langshan Road, Xili Street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: RUIDE DETECTION TECHNOLOGY (SHENZHEN) Co.,Ltd. |