CN110582151B - Intelligent inductor - Google Patents
Intelligent inductor Download PDFInfo
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- CN110582151B CN110582151B CN201910853856.6A CN201910853856A CN110582151B CN 110582151 B CN110582151 B CN 110582151B CN 201910853856 A CN201910853856 A CN 201910853856A CN 110582151 B CN110582151 B CN 110582151B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses an intelligent inductor which comprises a driving circuit, a constant current source circuit and an induction circuit, wherein the driving circuit and the constant current source circuit are electrically connected with the induction circuit; according to the invention, the voltage signal reflecting the current temperature is obtained by utilizing the thermosensitive element and the constant current source circuit based on operational amplifier, and the voltage is connected to the sensitivity setting pin SENS of the induction chip, so that the sensitivity of the induction chip is controlled.
Description
Technical Field
The invention relates to the technical field of induction devices, in particular to an intelligent inductor.
Background
Common PIR inductor (human pyroelectric infrared sensor) in the market at present triggers by mistake easily when ambient temperature is higher, and all probably causes the inductor malfunction when wind, leaf fall, so, when this PIR inductor is used in lamps and lanterns, can cause lamps and lanterns to be lighted frequently to can waste the energy, and can reduce user's experience and feel.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an intelligent sensor which adopts a temperature sensor to detect the ambient temperature, and when the ambient temperature rises, the sensitivity of the sensor can be properly reduced, so that the false triggering of the sensor can be reduced, the waste of energy can be further avoided, and the experience of a user can be improved.
The invention discloses an intelligent inductor which comprises a driving circuit, a constant current source circuit and an induction circuit, wherein the driving circuit and the constant current source circuit are electrically connected with the induction circuit.
The invention discloses an intelligent inductor, wherein a driving circuit comprises resistors R1, R2, R3, R4, R5, R6, R7, a piezoresistor ZV1, a fuse F1, a bulb L2, a bridge rectifier block BD1, a field effect transistor Q1, a triode Q2, Q3, a zener diode ZD1, a diode D1, a capacitor C1, C2, EC2, a zener chip U2, wherein the cathode of the zener diode ZD 2 is electrically connected with a terminal N after being sequentially connected in series with the capacitor C2 and the resistor R2, the anode of the zener diode ZD 2 is electrically connected with the terminal N after being sequentially connected in series with the capacitor C2 and the piezoresistor ZV 2, the resistor R2 is electrically connected in parallel with the capacitor C2, the cathode of the zener diode ZD 2 is electrically connected with the anode of the diode ZD 2 and the anode of the diode ZD 2, the anode of the diode is electrically connected with the anode of the diode D2 and the diode D2, and the cathode of the diode ZD 2 are electrically connected with the power terminal D2, the negative electrode of a capacitor EC1 is grounded, a capacitor C2 is connected with the capacitor EC1 in parallel, a pin 2 of a voltage stabilizing chip U1 is grounded, a pin 3 of a voltage stabilizing chip U1 leads out a power supply terminal 3V, the positive electrode of the capacitor EC2 is electrically connected with a pin 3 of a voltage stabilizing chip U1, the negative electrode of a capacitor EC2 is grounded, a capacitor C3 is connected with a capacitor EC2 in parallel, one input end of a bridge rectifier block BD1 is electrically connected with a terminal L after being connected with a fuse F1 in series, one input end of a bridge rectifier block BD1 is electrically connected with one end of a piezoresistor ZV1 far away from the terminal N, the other input end of the bridge rectifier block BD1 is electrically connected with a terminal S, two ends of a bulb L2 are respectively electrically connected with the terminal N and the terminal S, the negative output end of the bridge rectifier block BD1 is grounded, the positive output end of the bridge rectifier block 1 is electrically connected with the drain electrode of a field effect transistor Q1, the source electrode of the, One end of a capacitor C5 and one end of a resistor R6 are electrically connected with a collector of a triode Q2, the other end of a resistor R4 is electrically connected with a power supply end 12V, the other end of a capacitor C5 and the other end of a resistor R6 are both grounded, an emitter of the triode Q2 is grounded, a base of the triode Q2 is electrically connected with the power supply end 12V after being connected with a resistor R5 in series, a collector of the triode Q3 is electrically connected with a base of the triode Q2, an emitter of the triode Q3 is grounded, and one end of a resistor R7 is electrically connected with a base of the triode Q.
The invention discloses an intelligent inductor, wherein an induction circuit comprises an induction chip U2, capacitors EC3, C8 and C9, resistors R9, R12, R8, R11 and R10, potentiometers LUX and TIME, a photosensitive diode Q4, a pin 4 of the induction chip U2 is electrically connected with a power supply end 3V, a pin 3 of the induction chip U2 is grounded, the anode of the capacitor EC3 is electrically connected with a power supply 3V, the cathode of the capacitor EC3 is grounded, a capacitor C3 is connected with the capacitor EC3 in parallel, a pin 5 of the induction chip U3 is electrically connected with the other end of the resistor R3, a pin 2 of the induction chip U3 is connected with the capacitor C3 in series and then grounded, a pin 2 of the induction chip U3 is electrically connected with the cathode of the photosensitive diode Q3 in series after being connected with the resistor R3 in series, one end and an adjustable end of the potentiometer LUX are electrically connected with the power supply end 3V, the other end of the photosensitive chip LUX is electrically connected with the photosensitive diode Q3 in series and the photosensitive chip 3 in series after being connected with the photosensitive diode LUX, the pin 6 of the sensing chip U2 is connected with the resistor R8 in series and then electrically connected with the power supply 3V, the pin 6 of the sensing chip U2 is connected with the resistor R11 and the resistor R10 in series in sequence and then grounded, one end and the adjustable end of the potentiometer TIME are electrically connected with one end of the resistor R10, and the other end of the potentiometer TIME is grounded.
The invention discloses an intelligent sensor, wherein the model of a sensing chip U2 is BS 612.
The invention discloses an intelligent inductor, wherein a constant current source circuit comprises a thermistor NTC1, resistors R10, R11, R12, R13 and RL, an operational amplifier OP, a field effect tube Q5 and a capacitor C11, wherein the non-inverting input end of the operational amplifier OP is electrically connected with one end of a resistor R13 and one end of a thermistor NTC1 after being connected in series with a resistor R12, the other end of the resistor R13 is grounded, the other end of the thermistor NTC1 is electrically connected with a reference end Vref, the non-inverting input end of the operational amplifier OP is electrically connected with a capacitor C11 after being connected in series with the capacitor C11, the inverting input end of the operational amplifier OP is electrically connected with the source of the field effect tube Q5, one end of the resistor RL and the pin 1 of an induction chip U2, the other end of the resistor RL is grounded, the gate of the field effect tube Q5 is electrically connected with the output end of the operational amplifier OP after being connected in series with a resistor R11, the, the 4-pin of the operational amplifier OP is grounded.
According to the invention, the voltage signal reflecting the current temperature is obtained by utilizing the thermosensitive element and the constant current source circuit based on operational amplifier, and the voltage is connected to the sensitivity setting pin SENS of the induction chip, so that the sensitivity of the induction chip is controlled.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a circuit schematic of a driver circuit;
FIG. 2 is a circuit schematic of the sensing circuit;
fig. 3 is a circuit schematic diagram of a constant current source circuit.
Detailed Description
In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The intelligent inductor comprises a driving circuit, a constant current source circuit and an induction circuit, wherein the driving circuit and the constant current source circuit are electrically connected with the induction circuit.
The driving circuit comprises resistors R1, R2, R3, R4, R5, R6, R7, a piezoresistor ZV1, a fuse F1, a bulb L2, a bridge rectifier block BD1, a field effect transistor Q1, triodes Q2 and Q3, a zener diode ZD1, a diode D1, capacitors C1, EC1 and EC1, a zener chip U1, a cathode of the zener diode ZD1 is electrically connected with a terminal N after being sequentially connected in series with the capacitor C1 and the resistor R1, an anode of the zener diode ZD1 is electrically connected with the capacitor C1 and the piezoresistor ZV1 in series, the resistor R1 is electrically connected with the capacitor C1 in parallel, the resistor R1 is connected with the capacitor C1 in parallel, a cathode of the zener diode ZD1 is electrically connected with a power terminal N after being sequentially connected in series with the diode D1, a cathode of the anode of the ZD1 is electrically connected with a power terminal of the diode ZD1, a cathode of the diode ZD1 and a power terminal of the capacitor D1 is electrically connected with a power terminal of the anode of the capacitor D1, and a, a capacitor C2 is connected with a capacitor EC1 in parallel, a pin 2 of a voltage stabilizing chip U1 is grounded, a pin 3 of the voltage stabilizing chip U1 leads out a power supply terminal of 3V, the positive electrode of a capacitor EC2 is electrically connected with a pin 3 of a voltage stabilizing chip U1, the negative electrode of the capacitor EC2 is grounded, a capacitor C3 is connected with a capacitor EC2 in parallel, one input end of a bridge rectifier block BD1 is electrically connected with a terminal L after being connected with a fuse F1 in series, one input end of the bridge rectifier block BD1 is electrically connected with one end of a piezoresistor ZV1 far away from the terminal N, the other input end of the bridge rectifier block BD1 is electrically connected with a terminal S, two ends of a bulb L2 are electrically connected with the terminal N and the terminal S respectively, the negative output end of the bridge rectifier block BD1 is grounded, the positive output end of the bridge rectifier block BD1 is electrically connected with the drain of a field effect transistor Q1, the source of the field effect transistor Q1 is grounded, the gate of a triode Q686Q 9 is electrically connected with one end of a, the other end of the resistor R4 is electrically connected with a power supply end 12V, the other end of the capacitor C5 and the other end of the resistor R6 are both grounded, the emitter of the triode Q2 is grounded, the base of the triode Q2 is connected with the resistor R5 in series and then is electrically connected with the power supply end 12V, the collector of the triode Q3 is electrically connected with the base of the triode Q2, the emitter of the triode Q3 is grounded, and one end of the resistor R7 is electrically connected with the base of the triode Q3.
The sensing circuit comprises a sensing chip U2, capacitors EC3, C8 and C9, resistors R9, R12, R8, R11 and R10, potentiometers LUX and TIME, a photodiode Q4, a pin 4 of the sensing chip U4 is electrically connected with a power supply terminal 3V, a pin 3 of the sensing chip U4 is grounded, the anode of the capacitor EC 4 is electrically connected with a power supply terminal 3V, the cathode of the capacitor EC 4 is grounded, the capacitor C4 is connected with the capacitor EC 4 in parallel, a pin 5 of the sensing chip U4 is electrically connected with the other end of the resistor R4, a pin 2 of the sensing chip U4 is connected with the capacitor C4 in series and then grounded, the pin 2 of the sensing chip U4 is electrically connected with the cathode of the photodiode Q4 after being connected with the resistor R4 in series, the anode of the photodiode Q4 is connected with the resistor R4 after being grounded, one end and the adjustable end of the potentiometer LUX are electrically connected with the power supply terminal of the sensing chip U4 in series, the sensing chip LUX is electrically connected with the power supply terminal 366 and the power supply terminal of the sensing chip U4 in series, the pin 6 of the induction chip U2 is connected in series with the resistor R11 and the resistor R10 in sequence and then grounded, one end and the adjustable end of the potentiometer TIME are electrically connected with one end of the resistor R10, and the other end of the potentiometer TIME is grounded.
The model number of the sensing chip U2 is BS 612.
The constant current source circuit comprises a thermistor NTC1, resistors R10, R11 and R12, r13 and RL, an operational amplifier OP, a field effect transistor Q5 and a capacitor C11, wherein the non-inverting input end of the operational amplifier OP is connected with a resistor R12 in series and then is electrically connected with one end of a resistor R13 and one end of a thermistor NTC1, the other end of the resistor R13 is grounded, the other end of the thermistor NTC1 is electrically connected with a reference terminal Vref, the non-inverting input end of the operational amplifier OP is connected with a capacitor C11 in series and then is grounded, the inverting input end of the operational amplifier OP is electrically connected with the source of the field effect transistor Q5, one end of the resistor RL and the pin 1 of the sensing chip U2, the other end of the resistor RL is grounded, the gate series resistor R11 of the field effect transistor Q5 is electrically connected with the output end of the operational amplifier, the drain series resistor OP 10 of the field effect transistor Q5 is electrically connected with a power.
The invention is a constant current source circuit based on operational amplifier, the thermistor NTC1 is a precise negative temperature coefficient thermistor, when the temperature rises, the resistance will decrease, the thermistor NTC1 and the resistor R3 form a voltage dividing circuit, the reference end Vref provides a reference voltage, the voltage at Vsi in the figure will increase along with the rise of the temperature, the voltage is connected to the non-inverting input end of the operational amplifier through the filter circuit formed by the resistor R2 and the capacitor C1, the voltage at Vso is output and connected to the inverting input end of the operational amplifier, because the operational amplifier OP has high amplification factor, high input resistance and low output resistance, the voltage at Vso and the voltage at Vsi can be considered to be equal, namely the temperature signal can be converted into a voltage signal, and the temperature rise voltage; the response chip U2 is main control IC for set for each item parameter of inductor work, wherein the sensitivity that No. 1 pin SENS of response chip U2 was used for adjusting the inductor, the voltage is less, sensitivity is higher, this pin receives Vso department back, gain by the voltage signal of temperature sensing circuit collection, processing, ambient temperature risees, arouse the rising of SENS pin upper voltage, response chip U2 reduces sensitivity automatically, thereby reduce the false trigger, and then can avoid the waste of the energy, and can improve user's experience and sense.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (1)
1. An intelligent sensor, its characterized in that: the device comprises a driving circuit, a constant current source circuit and an induction circuit, wherein the driving circuit and the constant current source circuit are electrically connected with the induction circuit;
the driving circuit comprises resistors R1, R2, R3, R4, R5, R6, R7, a piezoresistor ZV1, a fuse F1, a bulb L2, a bridge rectifier block BD1, a field effect transistor Q1, a triode Q2, Q3, a zener diode ZD1, a diode D1, a capacitor C1, a capacitor C2, a C2, an EC2, a zener chip U2, wherein the cathode of the zener diode ZD 2 is electrically connected with a terminal N after being sequentially connected in series with the capacitor C2 and the resistor R2, the anode of the zener diode ZV 2 is electrically connected with the capacitor C2 after being sequentially connected in series with the capacitor C2 and the piezoresistor ZV 2, the resistor R2 is connected in parallel with the capacitor C2, the cathode of the ZD 2 of the zener diode ZV 2 is electrically connected with the anode of the ZD 2 after being connected in series with the diode ZD 2, the anode of the ZD 2 and the diode ZD 2 is electrically connected with a power supply terminal of the diode ZD 3612, the negative electrode of the capacitor EC1 is grounded, the capacitor C2 is connected in parallel with the capacitor EC1, the pin 2 of the voltage stabilizing chip U1 is grounded, the pin 3 of the voltage stabilizing chip U1 leads out a power supply terminal 3V, the positive electrode of the capacitor EC2 is electrically connected with the pin 3 of the voltage stabilizing chip U1, the negative electrode of the capacitor EC2 is grounded, the capacitor C3 is connected in parallel with the capacitor EC2, one input end of the bridge rectifier block BD1 is electrically connected with the terminal L after being connected in series with the fuse F1, one input end of the bridge rectifier block BD1 is electrically connected with the end of the piezoresistor ZV1 far away from the terminal N, the other input end of the bridge rectifier block BD1 is electrically connected with the terminal S, two ends of the bulb L2 are electrically connected with the terminal N and the terminal S respectively, the negative output end of the bridge rectifier block BD1 is grounded, and the positive output end of the rectifier block BD1 is electrically connected with the drain of the field, the source of the field effect transistor Q1 is grounded, the gate of the field effect transistor Q1 is electrically connected with one end of a resistor R4, one end of a capacitor C5, one end of a resistor R6 and the collector of a triode Q2, the other end of the resistor R4 is electrically connected with a power supply end 12V, the other end of the capacitor C5 and the other end of the resistor R6 are both grounded, the emitter of the triode Q2 is grounded, the base of the triode Q2 is electrically connected with the power supply end 12V after being connected in series with a resistor R5, the collector of the triode Q3 is electrically connected with the base of a triode Q2, the emitter of the triode Q3 is grounded, and one end of the resistor R7 is electrically connected with the base of the triode Q;
the sensing circuit comprises a sensing chip U2, capacitors EC3, C8 and C9, resistors R9, R12, R8, R11 and R10, potentiometers LUX and TIME, and a photosensitive diode Q4, wherein 4 feet of the sensing chip U2 are electrically connected with a power supply end 3V, 3 feet of the sensing chip U2 are grounded, the anode of the capacitor EC3 is electrically connected with a power supply end 3V, the cathode of the capacitor EC3 is grounded, the capacitor C3 is connected with a capacitor EC3 in parallel, 5 feet of the sensing chip U2 is electrically connected with the other end of the resistor R7, 2 feet of the sensing chip U2 is connected with a capacitor C9 in series and then grounded, 2 feet of the sensing chip U2 is connected with a resistor R9 in series and then electrically connected with the cathode of the photosensitive diode Q9, the anode of the photosensitive diode Q9 is connected with a resistor R9 in series and then grounded, one end of the potentiometer LUX is electrically connected with the power supply end 3V, and the other end of the photosensitive diode LUX is electrically connected with the cathode of the photosensitive diode LU, the 6-pin series capacitor C10 of the sensing chip U2 is grounded, the 6-pin series resistor R8 of the sensing chip U2 is electrically connected with a power supply 3V, the 6-pin of the sensing chip U2 is sequentially connected with a resistor R11 and a resistor R10 in series and then grounded, one end and an adjustable end of the potentiometer TIME are electrically connected with one end of a resistor R10, and the other end of the potentiometer TIME is grounded;
the model of the induction chip U2 is BS 612;
the constant current source circuit comprises a thermistor NTC1, resistors R10, R11, R12, R13 and RL, an operational amplifier OP, a field effect tube Q5 and a capacitor C11, wherein a non-inverting input end of the operational amplifier OP is electrically connected with one end of a resistor R13 and one end of a thermistor NTC1 after being connected in series with a resistor R12, the other end of the resistor R13 is grounded, the other end of the thermistor NTC1 is electrically connected with a reference end Vref, a non-inverting input end of the operational amplifier OP is electrically connected with one end of a resistor RL and a pin 1 of a sensing chip U2 after being connected in series with a capacitor C11, an inverting input end of the operational amplifier OP is electrically connected with a source of the field effect tube Q5, one end of the resistor RL and a pin 1 of the sensing chip U2, the other end of the resistor RL is grounded, a grid of the field effect tube Q5 is electrically connected with an output end of the operational amplifier OP after being connected with a resistor R, the 4-pin of the operational amplifier OP is grounded.
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| CN111698820B (en) * | 2020-05-21 | 2022-11-01 | 广州市番禺奥莱照明电器有限公司 | Signal processing method and device of infrared induction lighting lamp and lighting lamp |
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