CN208572495U - A kind of quick microwave radar induction driving power of LED light - Google Patents
A kind of quick microwave radar induction driving power of LED light Download PDFInfo
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- CN208572495U CN208572495U CN201821046083.8U CN201821046083U CN208572495U CN 208572495 U CN208572495 U CN 208572495U CN 201821046083 U CN201821046083 U CN 201821046083U CN 208572495 U CN208572495 U CN 208572495U
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Abstract
The utility model relates to power supply control fields, disclose a kind of quick microwave radar induction driving power of LED light, including rectification circuit, voltage stabilizing power supplying circuit, microwave radar sensor circuit and LED drive power circuit；The AC rectification of input is supplied voltage stabilizing power supplying circuit and LED drive power circuit at direct current by rectification circuit；The voltage stabilizing power supplying circuit is connect with microwave radar sensor circuit, provides stable DC source for it；The output end of the microwave radar sensor circuit is connect with LED drive power circuit；The external LED light of LED drive power circuit；The microwave radar sensor circuit includes radar signal receiving unit, infrared thermal releasing electrical chip and filter unit.The quick microwave radar induction driving power of this LED light realizes the intelligentized control method of lamps and lanterns, and supply voltage is stable, structure is simple, energy saving, at low cost.
Description
Technical field
The utility model relates to power supply control technology fields, drive more particularly, to a kind of quick microwave radar induction of LED light
Dynamic power supply.
Background technique
The driving power of general ordinary lamp and lantern at present, it is generally following several.
1, it needs artificially to carry out opening and closing by switch, operate more troublesome.
2, acousto-optic control lamp encounters certain sound, will bright light, more waste of energy, at the same reduce lamps and lanterns use the longevity
Life.
3, the power supply incuded using microwave radar, such as application No. is 2015100242753 to disclose a kind of inductive lightning dress
It sets: including microwave radar sensor circuit, passing through sensing target object motion state and generate the first inductive signal；Light-inductive electricity
Road passes through sense ambient light brightness and generates the second inductive signal；Signal detection control circuit, respectively with the microwave radar sense
Answer circuit and the light-inductive circuit connection；Lighting apparatus is connect with the signal detection control circuit；Signal detection control
Circuit receives and the closure or openness of the lighting apparatus according to first inductive signal and second actuated signal control.
The inductive lighting device has following defect: (1) when sensed conductive body mobile when, lamps and lanterns will bright light, work as arrival
The lighting time of system default, lamps and lanterns will turn off the light；It is this triggering after realize bright light duration by timing by way of, may
People is caused to have been moved off the waste of energy situation that lamp does not go out also；Or people is caused not leave, the case where lamp has gone out, object is needed at this time
Body moves again, could retriggered radar induction lamps and lanterns bright light；The situation that just will appear a moment dark between in this way, gives
A kind of uncomfortable impression of the eyes of people；(2) induction power supply spread of voltage influences inducing function；(3) circuit structure is complicated,
It is at high cost.
Utility model content
The utility model in order to overcome at least one of the drawbacks of the prior art described above, provides a kind of quick microwave thunder of LED light
Up to induction driving power, the supply voltage is stable, inductive effects are good, structure is simple, at low cost.
A kind of quick microwave radar induction driving power of LED light, including rectification circuit, voltage stabilizing power supplying circuit, microwave thunder are provided
Up to sensor circuit and LED drive power circuit；Rectification circuit is by the AC rectification of input at direct current supply pressure stabilizing power supply
Circuit and LED drive power circuit；The voltage stabilizing power supplying circuit is connect with microwave radar sensor circuit, is provided for it stable straight
Galvanic electricity source；The output end of the microwave radar sensor circuit is connect with LED drive power circuit；The LED drive power circuit
External LED light；
The microwave radar sensor circuit includes that radar signal receiving unit, infrared thermal releasing electrical chip and filtering are single
Member；The radar signal receiving unit for emitting microwave signal and sense object signal, and transmits signals to infrared
Pyroelectricity chip；The infrared thermal releasing electrical chip, for receiving the transducing signal of radar signal receiving unit transmission, to it
After amplifying and handling, control signal is sent to LED drive power circuit；The filter unit, for filtering out signal transmitting
Interference signal in the process.
In the present solution, voltage stabilizing power supplying circuit, which can incude driving power for microwave radar, provides stable power supply, guarantee microwave
The normal work of radar induction driving power；Microwave radar sensor circuit can incude ambient enviroment, single by filtering
Member further increases the reliability of microwave radar sensor circuit induction, passes through radar signal receiving unit, infrared thermal release electric
The induction of chip and signal processing can be realized and incude to the object in induction range, and pass through control according to induction result
LED drive power circuit processed realizes the control that flickers to LED lamp.This programme is without signal detection in the prior art control electricity
Road, while circuit structure is succinct, inducing function is stable, inductive effects are good.
Further, the rectification circuit includes sequentially connected protective tube F1, rectifier bridge stack DB1, filter capacitor C1, filter
The other end of wave capacitor C1 is grounded, and the ungrounded end of filter capacitor is separately connected pressure stabilizing power supply electricity as the output end of rectification circuit
Road, LED drive power circuit.
Further, the voltage stabilizing power supplying circuit uses BP8519C chip；The pin D connection of the BP8519C chip is whole
The output end of current circuit, pin VCC are connected by capacitor C4 with pin GND, pin GND connection diode D2 cathode, diode
Plus earth, while pin GND is connect with one end of inductance L1, and the other end of inductance L1 is grounded by electrolytic capacitor C5, electricity
Solution capacitor C5 is connected in parallel to resistance R4；Pin GND is connected by resistance R5 with pin FB；Pin FB passes through resistance R6 and inductance
L1 is connected with the common point of electrolytic capacitor C5 connection；The common point that inductance L1 is connected with electrolytic capacitor C5 is powered defeated as pressure stabilizing
Outlet is connect with microwave radar sensor circuit.
Further, the LED drive power circuit includes constant-current driven chip U1, and microwave radar sensor circuit passes through
Metal-oxide-semiconductor Q1 is connect with constant-current driven chip.
Further, the constant-current driven chip U1 uses BP2866 chip；BP2866 chip passes through electricity parallel with one another
Stream sampling resistor R1 and current sampling resistor R2 is connected with the drain electrode of metal-oxide-semiconductor, and the source electrode ground connection of metal-oxide-semiconductor, grid passes through capacitor C3
Ground connection, while grid is connect with the output end of microwave radar sensor circuit；The pin GND of BP2866 chip is grounded, and pin VH connects
The output end of rectification circuit；Two pin D are connected, and are connected by the output end of fast recovery diode D1 and rectification circuit, and
Pin D is connect with one end of switch transformer T1 coil, and the other end of switch transformer is defeated as bearing for LED drive power circuit
Positive output end external lamps and lanterns of the cathode of outlet and fast recovery diode D1 as LED drive power circuit；Positive output end with
Filter capacitor C2 and dummy resistance R3 parallel with one another are connected between negative output terminal.
Further, radar signal receiving unit includes high-frequency triode and connects with the emitter of high-frequency triode
The S type antenna connect, the S type antenna are connect with infrared thermal releasing electrical chip.
In order to further increase the sensitivity of microwave radar sensor circuit, the high-frequency triode be characterized frequency be greater than or
High-frequency triode equal to 9GHZ.
In order to further increase the reliability of microwave radar sensor circuit, the filter unit includes
Filter unit one is connect with infrared thermal releasing electrical chip, for filtering out the interference signal of infrared thermal releasing electrical chip；
Filter unit two, the S type antenna is connect by filter unit two with infrared thermal releasing electrical chip, for filtering out antenna
Receive the interference signal in signal.
Further, the filter unit one include resistance R8, capacitor C6 and capacitor C9 parallel with one another, capacitor C10,
Capacitor C11, capacitor C12；+ the 3.3V that a termination of capacitor C9 is provided by voltage stabilizing power supplying circuit, other end ground connection；The one of resistance R8
Termination+3.3V, the other end are grounded by capacitor C6；Filter unit two includes resistance R17, resistance R16 parallel with one another, capacitor
C13, capacitor C14 and resistance R12 parallel with one another, capacitor C15, capacitor C16；One end of capacitor C14 and the one of capacitor C15
End is connected by resistance R17；The common point that resistance R17 is connect with capacitor C15 is connect with the output end of S type antenna；Resistance R17 with
The common point of capacitor C14 connection is connect with infrared thermal releasing electrical chip；One end that capacitor C14 is not connect with resistance R17, capacitor C15
The one end not connecting with resistance R17 is grounded.
One of preferably, the infrared thermal releasing electrical chip uses EG4002 chip；The pin VDD of EG4002 chip
The output end of voltage stabilizing power supplying circuit is connect, pin CT connect with the points of common connection of the capacitor C6 of filter unit one and resistance R8, draws
Foot OUT is connect with LED drive power circuit, pin GND ground connection；Pin 1OUT is connect with pin 1IN- by resistance R14；Resistance
R14 is parallel with capacitor C7, and pin 1IN- is connect by concatenated resistance R15 and capacitor C8 with filter unit two；Pin VC passes through
Resistance R13 connects the output end of voltage stabilizing power supplying circuit, and is grounded by photo resistance CDS1；Pin A ground connection.This programme may be implemented
Strong and weak according to intensity of illumination carries out automatic shutter to lamps and lanterns.
Preferably two, in order to further increase the intelligence of induction, the infrared thermal releasing electrical chip is used
EG4002 chip；The pin VDD of EG4002 chip connects the output end of voltage stabilizing power supplying circuit, the capacitor of pin CT and filter unit one
C6 is connected with the points of common connection of resistance R8, and pin OUT is connect with LED drive power circuit, pin GND ground connection；Pin 1OUT
It is connect with pin 1IN- by resistance R14；Resistance R14 is parallel with capacitor C7, and pin 1IN- passes through concatenated resistance R15 and capacitor
C8 is connect with filter unit two；Pin VC connects the output end of voltage stabilizing power supplying circuit by resistance R13, and passes through photo resistance CDS1
Ground connection；Pin A connects power supply.The case where this programme can be avoided people and not leave, and lamp has gone out.
Compared with prior art, the utility model has the following beneficial effects:
(1) the quick microwave radar of this LED light incudes driving power, can be realized when intensity of illumination is strong, lamps and lanterns are automatically closed,
It is just opened when intensity of illumination is weak, is effectively saved electric energy；
(2) after sensing mobile people or object for the first time and triggering control switch, if people or object are still in induction range
It is interior, it can persistently sense the people or object, so that lamps and lanterns are always maintained at bright state, overcome the prior art in people and do not leave lamp
It has been gone out that, object must move the defect of ability retriggered radar induction lamps and lanterns bright light again, and control effect is good, further increases
The intelligence of lamps and lanterns control.
(3) power good incudes high reliablity；
(4) circuit structure is simple, and circuit element is few, connection is succinct；It is at low cost.
This LED light quick microwave radar induction driving power while realizing good result, circuit structure simply, cost
It is low.The utility model can be applied in lighting area, it is to be understood that also can be widely applied to other desired field.
Detailed description of the invention
Fig. 1 is the system structure diagram of embodiment 1.
Fig. 2 is the microwave radar sensor circuit schematic illustration of embodiment 1.
Fig. 3 is that the quick microwave radar of LED light of embodiment 2 incudes driving power circuit theory schematic diagram.
Fig. 4 is the microwave radar sensor circuit schematic illustration of embodiment 3.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；In order to better illustrate this embodiment, attached
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；" connection " herein can be direct
Connection, or be indirectly connected with；To those skilled in the art, certain known features and its explanation may save in attached drawing
Slightly it will be understood by.For the ordinary skill in the art, it can understand that above-mentioned term is practical at this with concrete condition
Novel concrete meaning.The technical solution of the utility model is described further with reference to the accompanying drawings and examples.
Embodiment 1
As shown in Figure 1, incude driving power the present embodiment provides a kind of quick microwave radar of LED light, including it is rectification circuit, steady
Press power supply circuit, microwave radar sensor circuit and LED drive power circuit；Rectification circuit is by the AC rectification Cheng Zhi of input
Galvanic electricity supplies voltage stabilizing power supplying circuit and LED drive power circuit；The voltage stabilizing power supplying circuit is connect with microwave radar sensor circuit,
Stable 3.3V DC power supply is provided for it；The output end of the microwave radar sensor circuit is connect with LED drive power circuit；
The external LED light of LED drive power circuit；
The microwave radar sensor circuit includes that radar signal receiving unit, infrared thermal releasing electrical chip and filtering are single
Member；The radar signal receiving unit is passed for emitting microwave signal and sense object signal, and by the signal sensed
It send to infrared thermal releasing electrical chip；The infrared thermal releasing electrical chip, for receiving the sensing of radar signal receiving unit transmission
Signal after it is amplified and is handled, sends control signal to LED drive power circuit；The filter unit, for filtering out
Interference signal in signal transduction process.
As shown in Fig. 2, radar signal receiving unit includes high-frequency triode and the emitter with high-frequency triode
The S type antenna of connection, S type antenna are connect with infrared thermal releasing electrical chip.Wherein, the collector of high-frequency triode Q2 passes through resistance R9
Connect the output end of voltage stabilizing power supplying circuit；The base stage of high-frequency triode Q2 is connect by biasing resistor R10 with collector；Base stage passes through
Biasing resistor R11 ground connection；Collector is grounded by capacitor C19.According to Doppler effect, the microwave signal of transmitting encounters fixation
Object back reflection return signal there is no phase shift, encounter mobile object emission return signal have phase shift.
Filter unit includes filter unit one, is connect with infrared thermal releasing electrical chip, for filtering out infrared thermal releasing electrical chip
Interference signal；Filter unit two, S type antenna are connect with infrared thermal releasing electrical chip by filter unit two, are connect for filtering out antenna
Interference signal in the collection of letters number.Filter unit one and filter unit one are RC filter unit.
As a specific embodiment of the present embodiment, filter unit one includes resistance R8, capacitor C6 and mutually simultaneously
Capacitor C9, capacitor C10, capacitor C11, the capacitor C12 of connection；+ the 3.3V that a termination of capacitor C9 is provided by voltage stabilizing power supplying circuit, separately
One end ground connection；A termination+3.3V of resistance R8, the other end are grounded by capacitor C6；
As a specific embodiment of the present embodiment, filter unit two includes resistance R17, resistance parallel with one another
R16, capacitor C13, capacitor C14 and resistance R12 parallel with one another, capacitor C15, capacitor C16；One end of capacitor C14 and capacitor
One end of C15 is connected by resistance R17；The common point that resistance R17 is connect with capacitor C15 is connect with the output end of S type antenna；Electricity
The common point that resistance R17 is connect with capacitor C14 is connect with infrared thermal releasing electrical chip；One end that capacitor C14 is not connect with resistance R17,
One end that capacitor C15 is not connect with resistance R17 is grounded.
The present embodiment infrared thermal releasing electrical chip uses EG4002 chip U1.EG4002 chip is the infrared thermal releasing of a classics
Electrical chip, the settable single triggering of this chip or repeated trigger function.
The specific connection of EG4002 chip U1 are as follows: the pin VDD of EG4002 chip U1 connects the output end of voltage stabilizing power supplying circuit；
Pin CT is connect with capacitor C6 with the common point of resistance R8；Pin OUT is connect by resistance R7 with LED drive power circuit；Draw
Foot GND ground connection；Pin 1OUT is connect with pin 1IN- by resistance R14, and resistance R14 is parallel with capacitor C7, and pin 1IN- passes through
Concatenated resistance R15 and capacitor C8 are connect with filter unit two；Pin VC meets+3.3V by resistance R3, and passes through photosensitive point event
Hinder CDS1 ground connection；Pin A ground connection.The amplifier of EG4002 chip U1 may be implemented in resistance value by adjusting resistance R14 and resistance R15
The adjusting of gain, appropriate according to gain adjust the distance that can change microwave radar and incude.
The working principle of the present embodiment is as follows:
Microwave radar incudes driving power, and connect power supply is 3.3V, and power consumption is extremely low, about 0.5W or so.When circuit connects electricity
After the voltage of source, EG4002 chip U1 starts work, and all elements are in standby；When microwave radar induction driving power induction
When to nearby about 5 meters or so, there are objects moving, it will have on the S type antenna of emitter of the signal reflex to high-frequency triode Q1, S
There is an induced voltage and gives chip U1 in type antenna, so that EG4002 chip U1 pin OUT be made to export high level, this high level
It is transferred to resistance R1, the control of the switch to control lamps and lanterns is realized by resistance R1.At this time if people or object are always in microwave thunder
Up within about 5 meters of driving power of induction, EG4002 chip U1 pin OUT just exports always high level, lamps and lanterns bright light always；Work as people
Or object leaves and incudes except about 5 meters of driving power in microwave radar, EG4002 chip U1 pin OUT exports low level, and lamps and lanterns go out
Lamp.
It is understood that the distance of reaction of induction driving power can specifically be set according to specific requirements.
When intensity of illumination is big, photo resistance CDS1 is strong with the change of illumination and resistance value becomes smaller, when the pin of EG4002 chip
When VC input voltage is less than 0.2VDD, internal Vc comparator has blocked Vs trigger signal and has kept input signal invalid, pin OUT terminal
It is constantly in low level output.Microwave induced driving power does not work at this time.
When the illumination of environment dies down, photo resistance CDS1 resistance value increase with dying down for illumination, when EG4002 chip
When pin VC input voltage is greater than 0.2VDD, internal Vc comparator opens Vs trigger signal, so that EG4002 enters standby shape
State；When the rising edge of trigger signal Vs is come, EG4002 chip enter triggering along when timing and triggering block timing stage simultaneously
Pin OUT terminal exports high level.Microwave induced driving power work at this time.
The quick microwave radar induction driving power of the LED light of the present embodiment can be realized when intensity of illumination is strong, be automatically closed
Lamps and lanterns are just opened when intensity of illumination is weak, are effectively saved electric energy；Inductive effects are good, and high to the induction sensitivity of object,
Improve the reliability of induction result；And circuit structure is succinct, is easy to Project Realization, is at low cost.
Embodiment 2
As shown in figure 3, in place of the difference of the present embodiment and embodiment 1 as described below.
Rectification circuit uses bridge rectifier.As a specific embodiment of the present embodiment, rectification circuit includes successively
The other end of protective tube F1, rectifier bridge stack DB1, the filter capacitor C1 of connection, filter capacitor C1 is grounded, filter capacitor it is ungrounded
The output end as rectification circuit is held to be separately connected voltage stabilizing power supplying circuit, LED drive power circuit.
Voltage stabilizing power supplying circuit uses BP8519C chip；This chip can accurate constant voltage output, without in addition plus LDO it is linearly steady
Depressor.The output end of the pin D connection rectification circuit of the BP8519C chip, pin VCC pass through capacitor C4 and pin GND phase
Even, pin GND connection diode D2 cathode, the plus earth of diode, while pin GND is connect with one end of inductance L1, electricity
The other end of sense L1 is grounded by electrolytic capacitor C5, and electrolytic capacitor C5 is connected in parallel to resistance R4；Pin GND by resistance R5 with
Pin FB is connected；Pin FB is connected by the common point that resistance R6 is connect with inductance L1 and electrolytic capacitor C5；Inductance L1 and electrolysis
The output end that the common point of capacitor C5 connection is powered as pressure stabilizing is connect with microwave radar sensor circuit.Pass through BP8519C chip
With the inter-working of surrounding component, the both ends of electrolytic capacitor C5 export stable 3.3V voltage, supply microwave radar sensor circuit.
LED drive power circuit includes constant-current driven chip U1, and microwave radar sensor circuit is driven by metal-oxide-semiconductor Q1 and constant current
Dynamic chip connection.As a specific embodiment of the present embodiment, constant-current driven chip U1 uses BP2866 chip；BP2866
Chip is connected by current sampling resistor R1 and current sampling resistor R2 parallel with one another with the drain electrode of metal-oxide-semiconductor, the source electrode of metal-oxide-semiconductor
Ground connection, grid is grounded by capacitor C3, while grid is connect with the output end of microwave radar sensor circuit；BP2866 chip draws
Foot GND ground connection, pin VH connect the output end of rectification circuit；Two pin D are connected, and pass through fast recovery diode D1 and rectified current
The output end on road connects, and pin D is connect with one end of switch transformer T1 coil, and the other end of switch transformer is as LED
The negative output terminal of driving power circuit and the cathode of fast recovery diode D1 as the positive output end of LED drive power circuit outside
Connect lamps and lanterns；Filter capacitor C2 and dummy resistance R3 parallel with one another are connected between positive output end and negative output terminal.Wherein, electric
Stream sampling resistor R1 and current sampling resistor R2 is for adjusting driving power output electric current.BP2866 core is used in the present embodiment
Piece, this chip are not necessarily to VCC start-up capacitance, and route is simple, and maximum power can accomplish 20W, and it is wide to be applicable in lamps and lanterns range.
The working principle of the present embodiment is as follows: when circuit works, alternating current 220V alternating current is through protective tube F1, then through bridge heap
DB1 rectification, forms stable DC voltage on filter capacitor C1.The cathode voltage of filter capacitor C1 supplies electricity to BP2866 all the way
Pin HV, BP2866 the chip U1 of chip U1 starts to work, and reaches transformer T1's from two pin D output switching pulse voltages
Coil, the anode of the cathode voltage connection LED light source of filter capacitor C1, the one of the cathode connection transformer T1 coil of LED light source
End.The pin GND that the cathode voltage of filter capacitor C1 supplies electricity to pin D, the BP8519 chip U2 of BP8519 chip U2 all the way is defeated
Switching pulse voltage reaches inductance L1 out, and inductance L1 other end exports 3.3V voltage, and 3.3 power voltage supplies give infrared thermal releasing battery core
Piece U3, infrared thermal releasing electrical chip U3 start to work, when microwave radar sensor circuit senses that 5 meters or so range objects are mobile,
The pin OUT of infrared thermal releasing electrical chip U3 can export a high level, this high level triggers the grid of metal-oxide-semiconductor Q1 by resistance R7
Pole, Q1 closure, LED drive power circuit drive LED light source bright light；When microwave radar sensor circuit no longer senses that object is mobile
When, the pin OUT of infrared thermal releasing electrical chip U3 can export a low level, this low level triggers metal-oxide-semiconductor Q1 by resistance R7
Grid, Q1 disconnects, and LED light source turns off the light.
The quick microwave radar induction driving power power good of the LED light of the present embodiment, structure are simple, at low cost.
Embodiment 3
As shown in figure 4, the present embodiment and embodiment 3 the difference is that, the pyroelectricity in microwave radar sensor circuit
The pin A of chip EG4002C connects power supply, so that pin A output is high level, so that EG4002 chip U1 allows repeated trigger.
When sensing mobile people or object, microwave radar incudes driving power and passes through the control switch of connection lamps and lanterns, control
Lamps and lanterns processed are bright, and still in induction range, microwave radar induction driving power can sense that lamps and lanterns can be always for very important person or object
Bright state is kept, the prior art is overcome and does not leave lamp in people and gone out, object must move again could retriggered radar
Incude the defect of lamps and lanterns bright light.
Described in attached drawing positional relationship for only for illustration, should not be understood as the limitation to this patent.It is aobvious
So, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and is not to this
The restriction of the embodiment of utility model.For those of ordinary skill in the art, on the basis of the above description also
It can make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all
It is practical new to should be included in this for made any modifications, equivalent replacements, and improvements etc. within the spirit and principles of the utility model
Within type scope of protection of the claims.
Claims (10)
1. a kind of quick microwave radar of LED light incudes driving power, including rectification circuit, which is characterized in that further include
Voltage stabilizing power supplying circuit, microwave radar sensor circuit and LED drive power circuit；Rectification circuit is whole by the alternating current of input
Flow into direct current supply voltage stabilizing power supplying circuit and LED drive power circuit；The voltage stabilizing power supplying circuit and microwave radar induced electricity
Road connection, provides stable DC source for it；The output end and LED drive power circuit of the microwave radar sensor circuit connect
It connects；The external LED light of LED drive power circuit；
The microwave radar sensor circuit includes radar signal receiving unit, infrared thermal releasing electrical chip and filter unit；
The radar signal receiving unit for emitting microwave signal and sense object signal, and transmits signals to infrared heat
Release electrical chip；The infrared thermal releasing electrical chip, for receive radar signal receiving unit transmission transducing signal, to its into
After row amplification and processing, control signal is sent to LED drive power circuit；The filter unit was transmitted for filtering out signal
Interference signal in journey.
2. the quick microwave radar of LED light according to claim 1 incudes driving power, which is characterized in that the rectification circuit
Including sequentially connected protective tube F1, rectifier bridge stack DB1, filter capacitor C1, the other end of filter capacitor C1 is grounded, filter capacitor
Ungrounded end be separately connected voltage stabilizing power supplying circuit, LED drive power circuit as the output end of rectification circuit.
3. the quick microwave radar of LED light according to claim 1 or 2 incudes driving power, which is characterized in that the pressure stabilizing supplies
Circuit uses BP8519C chip；The output end of the pin D connection rectification circuit of the BP8519C chip, pin VCC pass through
Capacitor C4 is connected with pin GND, pin GND connection diode D2 cathode, the plus earth of diode, while pin GND and electricity
Feel one end connection of L1, the other end of inductance L1 is grounded by electrolytic capacitor C5, and electrolytic capacitor C5 is connected in parallel to resistance R4；Draw
Foot GND is connected by resistance R5 with pin FB；Pin FB passes through the common point that resistance R6 is connect with inductance L1 and electrolytic capacitor C5
It is connected；The output end that inductance L1 and the common point of electrolytic capacitor C5 connection are powered as pressure stabilizing connects with microwave radar sensor circuit
It connects.
4. the quick microwave radar of LED light according to claim 3 incudes driving power, which is characterized in that the LED driving electricity
Source circuit includes constant-current driven chip U1, and microwave radar sensor circuit is connect by metal-oxide-semiconductor Q1 with constant-current driven chip.
5. the quick microwave radar of LED light according to claim 4 incudes driving power, which is characterized in that the constant current driving
Chip U1 uses BP2866 chip；BP2866 chip by current sampling resistor R1 and current sampling resistor R2 parallel with one another with
The drain electrode of metal-oxide-semiconductor is connected, and the source electrode ground connection of metal-oxide-semiconductor, grid is grounded by capacitor C3, while grid and microwave radar sensor circuit
Output end connection；The pin GND of BP2866 chip is grounded, and pin VH connects the output end of rectification circuit；Two pin D are connected,
And it is connected by the output end of fast recovery diode D1 and rectification circuit, and one end of pin D and switch transformer T1 coil connects
It connects, the other end of switch transformer is made as the negative output terminal of LED drive power circuit and the cathode of fast recovery diode D1
For the external lamps and lanterns of positive output end of LED drive power circuit；Filter parallel with one another is connected between positive output end and negative output terminal
Wave capacitor C2 and dummy resistance R3.
6. the quick microwave radar of LED light described according to claim 1 or 2 or 4 or 5 incudes driving power, which is characterized in that radar
It includes high-frequency triode and the S type antenna connecting with the emitter of high-frequency triode, S type day that signal, which emits receiving unit,
Line is connect with infrared thermal releasing electrical chip；The high-frequency triode is characterized the high-frequency triode that frequency is greater than or equal to 9GHZ.
7. the quick microwave radar of LED light according to claim 6 incudes driving power, which is characterized in that the filter unit
Including
Filter unit one is connect with infrared thermal releasing electrical chip, for filtering out the interference signal of infrared thermal releasing electrical chip；
Filter unit two, the S type antenna are connect by filter unit two with infrared thermal releasing electrical chip, are received for filtering out antenna
Interference signal in signal.
8. the quick microwave radar of LED light according to claim 7 incudes driving power, which is characterized in that the filter unit
One includes resistance R8, capacitor C6 and capacitor C9 parallel with one another, capacitor C10, capacitor C11, capacitor C12；One end of capacitor C9
+ the 3.3V provided by voltage stabilizing power supplying circuit, other end ground connection are provided；A termination+3.3V of resistance R8, the other end are connect by capacitor C6
Ground；Filter unit two includes resistance R17, resistance R16 parallel with one another, capacitor C13, capacitor C14 and resistance parallel with one another
R12, capacitor C15, capacitor C16；One end of capacitor C14 is connect with one end of capacitor C15 by resistance R17；Resistance R17 and capacitor
The common point of C15 connection is connect with the output end of S type antenna；Resistance R17 and the capacitor C14 common point connecting and infrared thermal release electric
Chip connection；One end that one end that capacitor C14 is not connect with resistance R17, capacitor C15 are not connect with resistance R17 is grounded.
9. the quick microwave radar of LED light according to claim 1 or 8 incudes driving power, which is characterized in that the infrared heat
Electrical chip is released using EG4002 chip；The pin VDD of EG4002 chip connects the output end of voltage stabilizing power supplying circuit, pin CT and filtering
The capacitor C6 of unit one is connected with the points of common connection of resistance R8, and pin OUT is connect with LED drive power circuit, and pin GND connects
Ground；Pin 1OUT is connect with pin 1IN- by resistance R14；Resistance R14 is parallel with capacitor C7, and pin 1IN- passes through concatenated electricity
Resistance R15 and capacitor C8 is connect with filter unit two；Pin VC connects the output end of voltage stabilizing power supplying circuit by resistance R13, and passes through
Photo resistance CDS1 ground connection；Pin A ground connection.
10. the quick microwave radar of LED light according to claim 1 or 8 incudes driving power, which is characterized in that described infrared
Pyroelectricity chip uses EG4002 chip；The pin VDD of EG4002 chip connects the output end of voltage stabilizing power supplying circuit, pin CT and filter
The capacitor C6 of wave unit one is connected with the points of common connection of resistance R8, and pin OUT is connect with LED drive power circuit, pin GND
Ground connection；Pin 1OUT is connect with pin 1IN- by resistance R14；Resistance R14 is parallel with capacitor C7, and pin 1IN- passes through concatenated
Resistance R15 and capacitor C8 are connect with filter unit two；Pin VC connects the output end of voltage stabilizing power supplying circuit by resistance R13, and leads to
Cross photo resistance CDS1 ground connection；Pin A connects power supply.
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| CN201821046083.8U CN208572495U (en) | 2018-07-03 | 2018-07-03 | A kind of quick microwave radar induction driving power of LED light |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024017066A1 (en) * | 2022-07-19 | 2024-01-25 | 佛山市威得士智能照明科技有限公司 | Led modular intelligent driving circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024017066A1 (en) * | 2022-07-19 | 2024-01-25 | 佛山市威得士智能照明科技有限公司 | Led modular intelligent driving circuit |
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