CN215452787U - Human body sensing module direct current power supply adaptive circuit and power supply device - Google Patents
Human body sensing module direct current power supply adaptive circuit and power supply device Download PDFInfo
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- CN215452787U CN215452787U CN202120366873.XU CN202120366873U CN215452787U CN 215452787 U CN215452787 U CN 215452787U CN 202120366873 U CN202120366873 U CN 202120366873U CN 215452787 U CN215452787 U CN 215452787U
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Abstract
The utility model relates to a direct current power supply adaptive circuit and a power supply device of a human body sensing module, wherein the direct current power supply adaptive circuit comprises an interference peak suppression unit, a voltage fluctuation clamping unit and a line voltage stabilization output unit; the interference peak suppression unit and the line voltage-stabilizing output unit are connected in series, the interference peak suppression unit is connected with the input end of the adaptation circuit, and the line voltage-stabilizing output unit is connected with the output end of the adaptation circuit; one end of the voltage fluctuation clamping unit is electrically connected between the interference peak suppression unit and the line voltage stabilization output unit, and the other end of the voltage fluctuation clamping unit is electrically connected to the negative electrode of the power supply; the interference peak suppression unit or the combination of the interference peak suppression unit and the voltage fluctuation clamping unit suppresses peaks and noises generated at the input end of the adaptation circuit; the voltage fluctuation clamping unit clamps the voltage at the input end of the line voltage stabilization output unit to keep stable without being influenced by the voltage fluctuation at the input end; and the stable human body sensing module power supply voltage output by the line voltage-stabilizing output unit is ensured.
Description
Technical Field
The utility model relates to the field of human body sensing, in particular to a direct-current power supply adaptive circuit and a power supply device of a human body sensing module.
Background
At present, space recognition of whether people enter a space, the number of people, behavior patterns of people, postures/states of people and the like becomes an essential part for intellectualization of intelligent homes, intelligent buildings and the like. The control of intelligent related equipment such as intelligent home and intelligent buildings is centered on people, so that the detection of people, the existence of human bodies and how to accurately detect and identify the people is an essential link for realizing the intelligence.
Unlike the traditional control of single product or single device, because many current systems, especially intelligent control systems, integrate different devices to form a set of multifunctional or multi-device cooperative intelligent systems.
With the intelligence and the higher integration level, they often only need to transmit related signals to the control center without specific action parts of themselves, so that they can generally simplify wiring, improve installation efficiency and reduce related implementation cost by adopting a centralized power supply mode or a shared power supply mode. The human body induction module or the human body inductor and other equipment or systems are often connected by direct current power distribution.
The direct current power supply in the prior art is a five-flower eight-door power supply with 5V power supply, 12V power supply and 24V power supply, and based on energy conservation, a switch power supply is generally adopted to output isolated and safe low-voltage power supply. Each system, each power supply manufacturer, and the designed switching power supply have different relevant quality, performance or parameters, and the stability of the output voltage and the voltage level are different, so that fluctuation is generated; in addition, the switching power supply can generate certain noise and ripples, and for the human body sensor, no matter the signal that microwave human body sensor, still PIR human body sensor detected, the signal of output all is millivolt level, and the stability of so power supply and the noise signal of stack on direct current supply all can cause harmful effects to the operating condition of human body sensor, stability. Instability and noise of the power supply terminal are one of sources which interfere with detection of the human body sensor and affect detection performance.
Particularly, the power supply of the intelligent induction LED lamp and the human body induction module in the lighting industry is provided by the LED driving power supply branch circuit, and the LED driving power supply is not a direct current voltage stabilization power supply, so that the power supply provided for the human body induction module is very unstable, and the normal and stable work of the human body induction module is seriously influenced by the overlarge ripples and noises.
SUMMERY OF THE UTILITY MODEL
The present invention provides a human body sensing module dc power supply adaptive circuit and a power supply device, aiming at the above-mentioned defects of the prior art.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the direct-current power supply adaptive circuit of the human body sensing module is constructed and is characterized by comprising an interference peak suppression unit, a voltage fluctuation clamping unit and a line voltage stabilization output unit;
the circuit comprises an interference peak suppression unit, a circuit voltage-stabilizing output unit, an adaptive circuit and a control unit, wherein the interference peak suppression unit and the circuit voltage-stabilizing output unit are connected in series, the interference peak suppression unit is connected with the input end of the adaptive circuit, and the circuit voltage-stabilizing output unit is connected with the output end of the adaptive circuit;
one end of the voltage fluctuation clamping unit is electrically connected between the interference peak suppression unit and the line voltage stabilization output unit, and the other end of the voltage fluctuation clamping unit is electrically connected to the negative electrode of the power supply;
the interference spike suppression unit suppresses spikes and noise generated at the input end of the adaptation circuit; or the combination of the interference spike suppression unit and the voltage fluctuation clamping unit suppresses spikes and noise generated at the input end of the adaptation circuit;
the voltage fluctuation clamping unit clamps the voltage at the input end of the line voltage stabilization output unit to keep stable without being influenced by the fluctuation of the input end of the adaptive circuit; and the voltage-stabilizing pressure difference of input to output required by the line voltage-stabilizing output unit is ensured;
the line voltage stabilization output unit outputs stable human body sensing module power supply voltage.
Preferably, the voltage ripple clamping unit may be configured as a capacitor C2 or TVS tube.
Preferably, the human body sensing module dc supply adapter circuit further comprises a capacitor C3 connected to the input end of the adapter circuit.
Preferably, the line voltage stabilization output unit is a three-terminal regulator, one end of the line voltage stabilization output unit is connected with the interference peak suppression unit, the other end of the line voltage stabilization output unit is connected with the output end of the adaptive circuit, and the other end of the line voltage stabilization output unit is connected with the negative electrode of the power supply.
Preferably, the line voltage-stabilizing output unit has a clamping voltage V at its input terminalD≥Vo+ Voltage-stabilizing Difference, VoIs the output voltage of the three-terminal voltage regulator.
Preferably, the shunt current I of the voltage fluctuation clamping unitPSet as the total current I of the input circuitt5% -50%.
Preferably, the interference spike suppression unit is provided as a resistor R1 or/and an inductor L1.
Preferably, the resistor R1 is a thermistor.
Preferably, the interference spike suppression unit includes at least one equivalent resistor; the voltage fluctuation clamping unit comprises a voltage stabilizing diode.
Preferably, the equivalent resistance comprises a resistance R1; or, the interference spike suppression unit comprises an inductor L1; or, the interference spike suppression unit comprises a resistor R1 and an inductor L1 which are connected in series.
Preferably, the human body sensing module dc power supply adapting circuit further comprises a resistor R2 connected in series with the zener diode.
Preferably, the human body sensing module dc power supply adapting circuit further comprises a capacitor C4 connected in parallel with the zener diode.
Preferably, the human body sensing module dc power supply adapting circuit further includes a triode arranged between the input terminal of the three-terminal regulator, the rear end of the resistor R1 and one end of the zener diode, and a resistor R3 connected between the rear end of the resistor R1 and one end of the zener diode.
Preferably, the human body sensing module dc power supply adapting circuit further includes an MOS transistor disposed between the input terminal of the three-terminal regulator, the rear end of the resistor R1, and one end of the zener diode.
Preferably, the voltage fluctuation clamping unit further comprises a triode connected in parallel with the zener diode.
A power supply device for a human body sensing module comprises a direct current power supply adaptive circuit of the human body sensing module and a human body sensing module connected with the output end of the adaptive circuit.
Preferably, the human body sensing module comprises at least one of a PIR and a microwave sensing module.
The human body sensing module power supply device and the human body sensing module direct current power supply adaptive circuit have the following beneficial effects that: at the front end of the line voltage-stabilizing output unit, the front end voltage of the line voltage-stabilizing output unit is stable through the clamping action of the voltage fluctuation clamping unit, so that the normal voltage-stabilizing differential pressure and stable work of the line voltage-stabilizing output unit can be ensured.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic circuit diagram of a power supply device of a human body sensing module according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a first embodiment of a power supply circuit of the human body sensing module;
FIG. 3 is a schematic circuit diagram of an expanded embodiment of the embodiment of FIG. 2;
FIG. 4 is a schematic circuit diagram of a second embodiment of a power supply circuit for a human body sensing module;
FIG. 5 is a schematic circuit diagram of a third embodiment of the power supply circuit of the human body sensing module;
FIG. 6 is a schematic circuit diagram of a fourth embodiment of the human body sensing module DC power supply adaptive circuit according to the present invention, wherein the voltage ripple clamping unit is a zener diode;
FIG. 7 is a schematic circuit diagram of a fifth embodiment of the voltage fluctuation clamping unit of the direct current power supply adaptive circuit of the human body sensing module of the present invention, which is a zener diode;
FIG. 8 is a schematic circuit diagram of a sixth embodiment of the voltage fluctuation clamping unit of the direct current power supply adaptive circuit of the human body sensing module of the present invention, which is a zener diode;
FIG. 9 is a circuit diagram of a seventh embodiment of the human body sensing module DC power supply adaptive circuit of the present invention when the voltage ripple clamping unit is a zener diode;
FIG. 10 is a schematic circuit diagram of an eighth embodiment of the voltage ripple clamping unit of the DC power supply adaptor circuit of the human body sensing module of the present invention, which is a Zener diode;
FIG. 11 is a schematic circuit diagram of a ninth embodiment of the present invention when the voltage ripple clamping unit of the human body sensing module DC power supply adaptive circuit is a voltage regulator diode;
FIG. 12 is a schematic circuit diagram of a tenth embodiment of the voltage ripple clamping unit of the DC power supply adaptive circuit of the human body sensing module of the present invention, which is a Zener diode;
FIG. 13 is a schematic circuit diagram of an eleventh embodiment of the human body sensing module DC power supply adaptive circuit of the present invention when the voltage ripple clamping unit is a zener diode;
fig. 14 is a circuit diagram of a twelfth embodiment of the human body sensing module dc power supply adapting circuit of the present invention, when the voltage fluctuation clamping unit is a zener diode.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the power supply apparatus for a human body sensing module in a preferred embodiment of the present invention includes a human body sensing module dc power supply adapting circuit and a human body sensing module connected to an output terminal of the adapting circuit, the human body sensing module dc power supply adapting circuit includes an interference spike suppression unit 1, a voltage fluctuation clamping unit 2 and a line voltage stabilization output unit 3, and the human body sensing module includes at least one of a PIR and a microwave sensing module.
The interference spike suppression unit 1 and the line voltage stabilization output unit 3 are connected in series, the interference spike suppression unit 1 is connected with the input end of the adaptation circuit, and the line voltage stabilization output unit 3 is connected with the output end of the adaptation circuit.
One end of the voltage fluctuation clamping unit 2 is connected to the line between the interference peak suppression unit 1 and the line voltage stabilization output unit 3, and the other end is electrically connected to the negative electrode of the power supply. The interference spike suppression unit 1 suppresses spikes and noise generated at the input end of the adaptation circuit, or the combination of the interference spike suppression unit 1 and the voltage fluctuation clamping unit 2 suppresses spikes and noise generated at the input end of the adaptation circuit.
The voltage fluctuation clamping unit 2 clamps the voltage of the input end of the line voltage stabilization output unit 3 to keep stable without being influenced by the fluctuation of the input end of the adaptive circuit and the discreteness of the input voltage of different manufacturers; and ensure the voltage-stabilizing pressure difference of input to output required by the line voltage-stabilizing output unit 3; the line voltage stabilization output unit 3 outputs a stable human body sensing module power supply voltage.
Because the voltage fluctuation clamping unit 2 is added at the front end of the line voltage stabilization output unit 3, although an external direct current power supply has fluctuation or spike and noise are doped, the front end of the line voltage stabilization output unit 3 is stable through the clamping action of the voltage fluctuation clamping unit 2, so that the normal voltage stabilization differential pressure of the line voltage stabilization output unit 3 can be ensured, and the stable work can be realized.
For direct current power supplies of different manufacturers, due to the fact that the direct current power supplies of different manufacturers have different performances and the power supply voltage inevitably has slight difference or fluctuation, redundant voltage can be isolated to the clamping voltage through the arrangement of the voltage fluctuation clamping unit 2, adaptation can be well carried out on the power supplies of different performances, and the influence of power supply fluctuation on the rear end is avoided.
And for the larger deviation of the power supply voltage, only the voltage fluctuation clamping unit 2 and the interference spike suppression unit 1 need to be adjusted, and the redundant voltage is isolated to the front of the clamping voltage by a clamping means, so that the clamping voltage at the front end of the line voltage stabilization output unit 3 is ensured to be stable and unchanged, and the subsequent line voltage stabilization output unit 3 does not need to be changed, thereby simplifying the design and standardization of the power supply circuit of the human body sensing module.
The clamping voltage V at the front end of the line voltage-stabilizing output unit 3D≥Vo+ steady pressure differential, such as: input voltage VI5V, the output voltage V of the electric line voltage stabilizing unitoAt 3.3V, the regulated voltage difference (i.e. conduction voltage drop) is 1 point several V, and the clamping voltage VD4.5 volts can be selected; such as: vIIs 12V, Vo5 volts and the regulated voltage difference (i.e., the conduction voltage drop) is 2.5 volts, so the clamp voltage VDOptionally 7.5 volts, etc.
Shunt current I of voltage ripple clamping unit 2P(i.e. clamp shunt current) is set to the input circuit total current It5% -50%, so that the conditions are satisfied when the selection voltage fluctuation clamping unit 2 and the interference spike suppression unit 1 are used.
In addition, due to the addition of the interference spike suppression unit 1, the disturbed spike suppression unit 1 consumes the energy of the spike and the high frequency noise in the interference spike suppression unit 1, or in a shielding or buffering manner, especially in an energy consumption manner, so that the energy transmitted to the rear end is greatly reduced, and even the energy cannot reach the line voltage stabilization output unit 3 at all.
Therefore, high-frequency fluctuation formed by high-frequency adjustment of the line voltage-stabilizing output unit 3 for responding to high-frequency noise can be reduced or avoided, the interference of the peak and the high-frequency noise of the direct-current power supply to a detection result and the interference to the working stability of the human body sensing module are ingeniously avoided, and the reliability of the detection result and the working stability of the human body sensing module are improved.
As shown in fig. 2 to 6, in some embodiments, the interference spike suppression unit 1 is provided as a resistor R1; further, in other embodiments, the interference spike suppression unit 1 is provided with a resistor R1 and an inductor L1 connected in series, or the interference spike suppression unit 1 is configured as an inductor L1. Preferably, the resistor R1 is a thermistor.
In some embodiments, the voltage ripple clamping unit 2 may be configured as a capacitor C2, which is charged or discharged to absorb or filter the voltage ripple noise to stabilize the clamping voltage. In other embodiments, the voltage ripple clamping unit 2 may be configured as a TVS transistor.
Preferably, the human body sensing module direct current supply adapting circuit further comprises a capacitor C3 connected between the input end and the negative electrode of the adapting circuit.
The line voltage-stabilizing output unit 3 is a three-terminal voltage stabilizer, one end of the line voltage-stabilizing output unit is connected with the interference peak suppression unit 1, the other end of the line voltage-stabilizing output unit is connected with the output end of the adaptive circuit, and the other end of the line voltage-stabilizing output unit is connected with the negative electrode.
Preferably, the clamping voltage V of the front end of the line-stabilized output unit 3D≥Vo+ Voltage-stabilizing Difference, VoIs the output voltage of the three-terminal voltage regulator. Stabilized current I of voltage ripple clamping unit 2PAccount for total input circuit current It5% -50% of the total weight of the composition.
Specifically, as shown in fig. 2, in the first embodiment, the interference spike suppression unit 1 is a resistor R1, the voltage ripple clamping unit 2 is a capacitor C2, and the line voltage stabilization output unit 3 is a three-terminal regulator, so that the energy of the spike and the high-frequency noise of the dc power supply is quickly consumed through the resistor R1. The clamping voltage is stabilized by absorbing or filtering voltage fluctuation noise through the charging and discharging of the capacitor C2.
In addition, as shown in fig. 3, on the basis of the first embodiment, the interference spike suppression unit 1 may be provided with a capacitor C3.
As shown in fig. 5, in the second embodiment, the interference spike suppression unit 1 is an inductor L1, the voltage fluctuation clamping unit 2 is a capacitor C2, and the line voltage stabilization output unit 3 is a three-terminal regulator.
As shown in fig. 6, in the third embodiment, the interference spike suppression unit 1 is a resistor R1 and an inductor L1 connected in series, the voltage fluctuation clamping unit 2 is a capacitor C2, and the line voltage stabilization output unit 3 is a three-terminal regulator.
Further, as shown in fig. 6 to 12, in other embodiments, the interference spike suppression unit 1 includes at least one equivalent resistor; the voltage fluctuation clamping unit 2 comprises a voltage stabilizing diode. The line voltage stabilization output unit 3 is a three-terminal regulator, and is the same as the above.
As shown in fig. 6, in some embodiments, the equivalent resistor includes a resistor R1, further, as shown in fig. 7, in other embodiments, the interference spike suppression unit 1 includes an inductor L1, or, as shown in fig. 8, the interference spike suppression unit 1 may also include a resistor R1 and an inductor L1 connected in series.
As shown in fig. 9, further, the human body sensing module dc power supply adapting circuit further includes a resistor R2 connected in series with the zener diode, so as to further improve the consumption of noise or fluctuation energy.
As shown in fig. 10, fig. 11 and fig. 12, in other embodiments, the human body sensing module dc power supply adapting circuit further includes a capacitor C4 connected in parallel with the zener diode, so as to stabilize the clamping voltage by dual means of voltage stabilization and filtering.
As shown in fig. 12, the human body sensing module dc power supply adapting circuit further includes a transistor Q1 disposed between the input terminal of the three-terminal regulator, the rear end of the resistor R1, and one end of the zener diode, and a resistor R3 connected between the rear end of the resistor R1 and one end of the zener diode, to increase the control of clamping.
Or, the human body sensing module direct current supply adaptation circuit further comprises an MOS tube arranged among the input end of the three-terminal voltage regulator, the rear end of the resistor R1 and one end of the voltage stabilizing diode, so that the clamping control is increased.
As shown in fig. 13 and 14, the voltage fluctuation clamping unit 2 further includes a transistor connected in parallel with the zener diode, the zener diode is connected to a base of the transistor, and the transistor may also be implemented as a Mos transistor.
The present application solves the following problems:
the problems that the fluctuation and the noise of direct current power supply interfere human body sensing and influence the stability of the human body sensing work are solved;
the problem of the adaptation of different direct current power supply performance of different producers, different parameters is solved.
The stability of human body sensing is improved from the power supply end.
Through the setting of the voltage fluctuation clamping unit 2, the clamp voltage is isolated from redundant voltage, the stability of the input voltage of the line voltage stabilization output unit 3 (three-terminal regulator) is ensured, the influence of the difference of the power supply voltage of the direct current power supplies with different performances of different manufacturers or the fluctuation isolation on the modules of the human body is eliminated, and the adaptability is good.
Through the combination of the voltage fluctuation clamping unit 2 and the interference peak suppression unit 1, noise of a direct current power supply or external equipment, especially high-frequency noise can be absorbed and consumed, the noise can not be transmitted to the line voltage stabilization output unit 3 (three-terminal regulator), and high-frequency fluctuation formed by high-frequency adjustment of the existing line voltage stabilization output unit 3 (three-terminal regulator) for responding to the high-frequency noise is avoided, the problem that the high-frequency fluctuation influences the detection result and the working stability of human body sensing is solved, power supply noise is eliminated from the power supply head end, the influence of the voltage fluctuation on the human body sensing is eliminated, and the stability of the human body sensing and the reliability of the detection structure are improved.
The direct-current power supply of each manufacturer to the human body sensing module is not required to be redesigned and adapted, the human body sensing research and development efficiency is improved, the research and development cost is reduced, and the standardization of the power supply scheme of the human body sensing module is facilitated.
It is to be understood that the above-described respective technical features may be used in any combination without limitation.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (17)
1. A human body sensing module direct current power supply adaptive circuit is characterized by comprising an interference peak suppression unit (1), a voltage fluctuation clamping unit (2) and a line voltage stabilization output unit (3);
the circuit comprises an interference spike suppression unit (1) and a circuit voltage stabilization output unit (3), wherein the interference spike suppression unit (1) is connected in series, the interference spike suppression unit (1) is connected with the input end of an adaptation circuit, and the circuit voltage stabilization output unit (3) is connected with the output end of the adaptation circuit;
one end of the voltage fluctuation clamping unit (2) is electrically connected between the interference spike suppression unit (1) and the line voltage stabilization output unit (3), and the other end of the voltage fluctuation clamping unit is electrically connected to the negative electrode of the power supply;
the interference spike suppression unit (1) suppresses spikes and noise generated at the input end of the adaptation circuit; or the combination of the interference spike suppression unit (1) and the voltage fluctuation clamping unit (2) suppresses spikes and noise generated at the input end of the adaptation circuit;
the voltage fluctuation clamping unit (2) clamps the voltage of the input end of the line voltage stabilization output unit (3) to be stable and is not influenced by the fluctuation of the input end of the adaptive circuit; and the voltage-stabilizing pressure difference of input to output required by the line voltage-stabilizing output unit (3) is ensured;
and the line voltage-stabilizing output unit (3) outputs stable human body sensing module power supply voltage.
2. The human body sensing module DC supply adapting circuit according to claim 1, wherein the voltage fluctuation clamping unit (2) can be configured as a capacitor C2 or TVS tube.
3. The human body sensing module DC supply adapting circuit according to claim 1, further comprising a capacitor C3 connected to the input terminal of the adapting circuit.
4. The human body sensing module DC supply adapting circuit according to claim 1, wherein the line voltage stabilization output unit (3) is a three-terminal regulator, one terminal of the line voltage stabilization output unit is connected with the interference peak suppression unit (1), the other terminal of the line voltage stabilization output unit is connected with the output terminal of the adapting circuit, and the other terminal of the line voltage stabilization output unit is connected with the negative pole of a power supply.
5. The human body sensing module DC supply adapting circuit according to claim 1, characterized in that the clamping voltage V of the input end of the line voltage-stabilizing output unit (3)D≥Vo+ Voltage-stabilizing Difference, VoIs the output voltage of the three-terminal voltage regulator.
6. Human body sensing module DC supply adaptation circuit according to claim 5, characterized in that the voltage ripple clamping unit (2) shunted current IPSet as the total current I of the input circuitt5% -50%.
7. Human body sensing module DC supply adaptation circuit according to any of claims 1 to 6, characterized in that the interference spike suppression unit (1) is arranged as a resistor R1 or/and an inductor L1.
8. The human body sensing module DC supply adapting circuit according to claim 7, wherein the resistor R1 is a thermistor.
9. The human body sensing module DC supply adapting circuit according to any one of claims 4 to 6, wherein the interference spike suppression unit (1) comprises at least an equivalent resistance; the voltage fluctuation clamping unit (2) comprises a voltage stabilizing diode.
10. The human body sensing module DC supply adapting circuit according to claim 9, wherein the equivalent resistance comprises a resistance R1; or, the interference spike suppression unit (1) comprises an inductance L1; or, the interference spike suppression unit (1) comprises a resistor R1 and an inductor L1 which are connected in series.
11. The human body sensing module DC power supply adaptation circuit according to claim 9, characterized in that, the human body sensing module DC power supply adaptation circuit further comprises a resistor R2 connected in series with the Zener diode.
12. The human body sensing module DC power supply adaptation circuit according to claim 9, characterized in that, the human body sensing module DC power supply adaptation circuit further comprises a capacitor C4 connected in parallel with the zener diode.
13. The human body sensing module DC power supply adapting circuit according to claim 9, further comprising a triode disposed between the input terminal of the three-terminal regulator, the rear end of the resistor R1 and one end of the zener diode, and a resistor R3 connected between the rear end of the resistor R1 and one end of the zener diode.
14. The human body sensing module DC power supply adapting circuit according to claim 9, further comprising MOS transistors disposed between the input terminal of the three-terminal regulator, the rear terminal of the resistor R1, and one terminal of the Zener diode.
15. The human body sensing module DC supply adapting circuit according to claim 9, wherein the voltage fluctuation clamping unit (2) further comprises a triode connected in parallel with the Zener diode.
16. A human body sensing module power supply device, characterized in that, it comprises the human body sensing module dc power supply adapter circuit of any claim 1 to 15, and the human body sensing module connected with the output end of the adapter circuit.
17. The device of claim 16, wherein the human body sensor module comprises at least one of a PIR and a microwave sensor module.
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| CN202120366873.XU CN215452787U (en) | 2021-02-09 | 2021-02-09 | Human body sensing module direct current power supply adaptive circuit and power supply device |
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| CN202120366873.XU CN215452787U (en) | 2021-02-09 | 2021-02-09 | Human body sensing module direct current power supply adaptive circuit and power supply device |
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