CN207531130U - A kind of LED light engine of the integrated sensor based on high-voltage linear driving circuit - Google Patents
A kind of LED light engine of the integrated sensor based on high-voltage linear driving circuit Download PDFInfo
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- CN207531130U CN207531130U CN201721602415.1U CN201721602415U CN207531130U CN 207531130 U CN207531130 U CN 207531130U CN 201721602415 U CN201721602415 U CN 201721602415U CN 207531130 U CN207531130 U CN 207531130U
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Abstract
The utility model discloses a kind of LED light engine of the integrated sensor based on high-voltage linear driving circuit, including：LED illumination circuit, sensor circuit and wiring board carrier, LED illumination circuit and sensor circuit are integrated on wiring board carrier；LED illumination circuit includes LED light source and LED light source drive device, LED light source drive device includes rectifier bridge and high-voltage linear driving circuit, the ac input end connection AC power of rectifier bridge, the DC output end anode of rectifier bridge connects high-voltage linear driving circuit, the DC output end cathode connection high-voltage linear driving circuit of rectifier bridge by LED light source；Sensor circuit includes sensor assembly and sensor feed circuit, and sensor assembly is connect respectively with the DC output end cathode of sensor feed circuit, high-voltage linear driving circuit and rectifier bridge.Using the utility model, sensor circuit with LED illumination circuit is combined, greatly improves the performance of LED light engine.
Description
Technical field
The present invention relates to LED electric light source technologies field more particularly to a kind of integrated biographies based on high-voltage linear driving circuit
The LED light engine of sensor.
Background technology
Traditional LED lamp is made of the part such as light source, driving circuit, radiator and optical device, and each part is
Independent separate.
Existing " light engine " is with SMT (Surface by elements such as LED lamp bead, driving circuit component, integrated IC
Mount Technology surface mounting technologies) pattern is assembled into light source module group, there is integrated, miniaturization, multi-functional, low
The features such as cost is the trend of following LED package applications.
In recent years, numerous international line lighting brand enterprises have begun the necks such as layout sensing, communication, intelligentized control method
Domain.More focus on intelligentized experience in illumination applications, especially carry out big quantity sensor and its control in light source drive part point
The processing and integration of technology had both increased the volume and complexity of lamps and lanterns driving in this way, considered that sensing control is driven with light source again
Dynamic connection, it is also higher and higher for power requirement and cost.
Invention content
The technical problems to be solved by the invention are, provide it is a kind of it is simple in structure, easy to assembly, flexibility is strong, is based on
The LED light engine of the integrated sensor of high-voltage linear driving circuit can greatly improve the performance of LED light engine.
In order to solve the above technical problem, the present invention provides a kind of integrated sensors based on high-voltage linear driving circuit
LED light engine, including LED illumination circuit, sensor circuit and wiring board carrier, the LED illumination circuit and sensor electricity
Road is integrated on wiring board carrier；The LED illumination circuit includes LED light source and LED light source drive device, the LED light source
Driving device includes rectifier bridge and high-voltage linear driving circuit, and the ac input end connection AC power of the rectifier bridge is described
The DC output end anode of rectifier bridge connects high-voltage linear driving circuit, the DC output end of the rectifier bridge by LED light source
Cathode connects high-voltage linear driving circuit；The sensor circuit includes sensor assembly and sensor feed circuit, described whole
Flow bridge DC output end connection sensor feed circuit, the sensor assembly respectively with sensor feed circuit, high-voltage line
Property driving circuit and rectifier bridge DC output end cathode connection.
As the improvement of said program, the sensor feed circuit and/or sensor assembly pass through grafting, absorption or weldering
The mode connect is integrated on wiring board carrier.
As the improvement of said program, the sensor assembly and sensor feed circuit are split structure, Huo Zhesuo
It states sensor assembly and sensor feed circuit becomes one formula structure.
As the improvement of said program, the LED light source includes multiple light emitting diodes mutually concatenated, the sensor
Module includes at least one sensor.
As the improvement of said program, the sensor assembly further includes the periphery auxiliary electricity being connect with the sensor
Road, the power input of the sensor are connect with sensor feed circuit, and output terminal passes through peripheral auxiliary circuits and high-voltage line
Property driving circuit connection.
As the improvement of said program, the sensor feed circuit includes the power supply chip being connected with each other, electrolytic capacitor
And zener diode, the power supply chip concatenate respectively with electrolytic capacitor and zener diode, the electrolytic capacitor and voltage stabilizing two
Pole pipe is in parallel and exports voltage stabilizing or constant current to sensor assembly.
As the improvement of said program, the sensor feed circuit further includes power supply auxiliary circuit, the power supply chip
By powering, auxiliary circuit connects sensor assembly.
As the improvement of said program, the LED light engine of the integrated sensor based on high-voltage linear driving circuit is also
Driving auxiliary circuit including being used to protect circuit, the rectifier bridge is by driving auxiliary circuit to connect LED light source and biography respectively
Sensor power supply circuit.
As the improvement of said program, the high-voltage linear driving circuit includes high-voltage linear chip and power regulation resistance
Group, the input terminal connection LED light source of the high-voltage linear chip, output terminal connection power regulation resistance group.
As the improvement of said program, connected between the high-voltage linear driving circuit and sensor assembly by field-effect tube
It connects.
Implement the present invention, have the advantages that：
The present invention is based on high-voltage linear driving circuit integrated sensor LED light engine by by sensor circuit with
LED illumination circuit is combined, and greatly improves the performance of LED light engine.Specifically, the present invention has the following advantages：
(1) sensor feed circuit is simple, and can both become one formula structure with sensor assembly, can also be with sensor
Module detaches, and is connected on wiring board carrier as independent sector, has no effect when not working to LED illumination circuit；
(2) sensor can both become one formula structure with sensor feed circuit, can also be with sensor feed circuit
Separation, is connected to as independent sector on wiring board carrier, can be replaced in application process according to different needs；
(3) it is onboard can be integrated in circuit by way of grafting, absorption or welding for sensor feed circuit and sensor
On body, the limitation of lamps and lanterns manufacturer and scheme provider can be effectively reduced；Inserting mode especially can be used, flexibility is strong.
(4) single unit system peripheral cell is few, simple in structure, easy to assembly, and different lamps can be mounted directly, and forms
Normal formula light engine device；
(5) output current of LED illumination circuit can be adjusted by power regulation resistance group, and flexibility ratio is high.
(6) auxiliary circuit is driven by increase, effectively reduces EMI defects, there is no complexity in structure and installation process
The problem of taking.
Description of the drawings
Fig. 1 is that the present invention is based on the circuit diagrams of the LED light engine of the integrated sensor of high-voltage linear driving circuit；
Fig. 2 is that the present invention is based on the first embodiment of the LED light engine of the integrated sensor of high-voltage linear driving circuit electricity
Lu Tu；
Fig. 3 is that the present invention is based on the second embodiment of the LED light engine of the integrated sensor of high-voltage linear driving circuit electricity
Lu Tu.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.Only this is stated, appearance in the text of the invention or the side such as the up, down, left, right, before and after that will occur, inside and outside
Position word is not the specific restriction to the present invention only on the basis of the attached drawing of the present invention.
Referring to Fig. 1, Fig. 1 shows that the present invention is based on the LED light engines of the integrated sensor of high-voltage linear driving circuit
Concrete structure can be directly fixedly mounted in lamp body, and external alternating current can work normally.Specifically, it is driven based on high-voltage linear
It is onboard that the LED light engine of the integrated sensor of dynamic circuit includes LED illumination circuit (1,2,3), sensor circuit (4,5) and circuit
Body, the LED illumination circuit (1,2,3) and sensor circuit (4,5) be integrated on wiring board carrier (i.e. LED illumination circuit (1,
2,3) and whole elements of sensor circuit (4,5) couple and are connected up on assist side carrier and electrically arranged).Therefore,
The present invention greatly improves the property of LED light engine by the way that sensor circuit (4,5) and LED illumination circuit (1,2,3) are combined
Can, adaptability is stronger.
The LED illumination circuit (1,2,3) includes LED light source 1 and LED light source drive device (2,3), the LED light source
Driving device (2,3) includes rectifier bridge 2 and high-voltage linear driving circuit 3, the ac input end AC connections exchange of the rectifier bridge 2
Power supply, the DC output end anode V+ of the rectifier bridge 2 connect high-voltage linear driving circuit 3, the rectification by LED light source 1
The DC output end cathode V- connection high-voltage linears driving circuit 3 of bridge 2.
During work, alternating current is by the ac input end AC input of rectifier bridge 2, and rectified bridge 2 is converted to direct current, by rectification
The DC output end anode V+ outputs of bridge 2, then enter LED high-voltage linear drive circuit 3 through LED light source 1, it finally exports to rectification
The DC output end cathode V- of bridge 2 forms LED illumination circuit.Under normal circumstances, LED illumination circuit (1,2,3) is solderable is connected to line
On the onboard body in road and work independently.
The sensor circuit (4,5) includes sensor assembly 4 and sensor feed circuit 5, the direct current of the rectifier bridge 2
Output terminal V+ connections sensor feed circuit 5, the sensor assembly 4 drive respectively with sensor feed circuit 5, high-voltage linear
The DC output end cathode V- connections of circuit 3 and rectifier bridge 2.
Specifically, the integration mode of sensor assembly 4 and sensor feed circuit 5 includes：
First, sensor assembly 4 and sensor feed circuit 5 become one formula structure, i.e., sensor circuit (4,5) is one
Body formula equipment.Wherein, sensor circuit (4,5) can be integrated on wiring board carrier by way of grafting, absorption or welding, when
When sensor circuit (4,5) is fixed using grafting or suction type, flexibility is stronger, it is easier to sensor circuit (4,5)
Entirety change more, dismounting.
2nd, sensor assembly 4 and sensor feed circuit 5 are split structure, i.e. sensor assembly 4 and sensor power supply
Circuit 5 is mutual indepedent, and sensor circuit (4,5) is split type equipment.Sensor assembly 4 and sensor feed circuit 5, which use, to be divided
Body formula structure so that sensor assembly 4 and sensor feed circuit 5 are mutual indepedent, have that heat dissipation performance is superior, manufacture cost
The advantages that low, using facilitating, user can replace the sensor of different function according to actual conditions, and flexibility is strong.Wherein, the biography
Sensor power supply circuit 5 can be integrated on wiring board carrier by way of grafting, absorption or welding；Meanwhile the sensor die
Block 4 can be also integrated on wiring board carrier by way of grafting, absorption or welding.
In order to further expand the function of LED light engine, the sensor assembly 4 includes at least one sensor, that is, uses
It family can be according to actual conditions grafting one or more sensors.
Therefore, the LED light engine the present invention is based on the integrated sensor of high-voltage linear driving circuit can directly be fixedly mounted
In lamp body, external alternating current can work normally.Specifically, the present invention has the following advantages：
(1) sensor feed circuit 5 is simple, can be connected on light engine as independent sector, to LED illumination when not working
Circuit (1,2,3) is had no effect；
(2) sensor can be used as independent sector, can be replaced in application process according to different needs；
(3) single unit system peripheral cell is few, simple in structure, easy to assembly, and different lamps can be mounted directly, and forms
Normal formula light engine device.
Referring to Fig. 2, Fig. 2 shows that the present invention is based on the LED light engines of the integrated sensor of high-voltage linear driving circuit
First embodiment.
As shown in Fig. 2, the LED light engine of the integrated sensor based on high-voltage linear driving circuit includes LED illumination circuit
(LED light source and LED light source drive device), sensor circuit (sensor assembly and sensor feed circuit 5) and circuit are onboard
Body, specifically：
The LED light source includes multiple light emitting diodes mutually concatenated.
The LED light source drive device includes rectifier bridge BD1 and high-voltage linear driving circuit 3；The high-voltage linear driving
Circuit includes high-voltage linear chip U2 and power regulation resistance group (R5, R6), and the input terminal of the high-voltage linear chip U2 connects
LED light source, output terminal connection power regulation resistance group (R5, R6).The power regulation resistance group (R5, R6) is preferably by two phases
Mutually power regulation resistance (R5, R6) in parallel composition.During work, the ac input end AC of the rectified bridge BD1 of alternating current enters, and leads to
Over commutation bridge BD1 is converted to direct current, is exported by the DC output end anode V+ of rectifier bridge BD1, successively through LED light source, high pressure
Linear chip U2 input terminals, high-voltage linear chip U2 output terminals, power regulation resistance group (R5, R6), the direct current of rectifier bridge BD1 are defeated
Outlet cathode V-, composition LED illumination circuit.Wherein, power regulation resistance (R5, R6) is adjusted available for modulating high-voltage linear chip
Economize on electricity road direct driving current.Preferably, the model of the high-voltage linear chip U2 can be RM90XX, MIK34XX or
JW1691, system that but not limited to this.
The sensor feed circuit 5 includes the power supply chip U1, electrolytic capacitor CE3 and the zener diode that are connected with each other
ZD1, the power supply chip U1 are concatenated respectively with electrolytic capacitor CE3 and zener diode ZD1, the electrolytic capacitor CE3 and voltage stabilizing
Diode ZD1 is in parallel and exports voltage stabilizing or constant current to sensor assembly, wherein, sensor can be ensured by zener diode ZD1
The input voltage of P1 keeps stablizing (such as 3.3V/5V/12V).In order to further improve the stability of sensor feed circuit 5,
Sensor feed circuit 5 further includes power supply auxiliary circuit, and the power supply chip U1 connects sensor die by auxiliary circuit of powering
Block.3rd resistor R3, third inductance L3, the first capacitance C1, the 4th diode D4 and the five or two are provided in power supply auxiliary circuit
Pole pipe D5 (can specifically be changed) according to practical circuit conditions；Power supply chip U1 and 3rd resistor R3 and third inductance L3 is successively
It concatenates and passes through 3rd resistor R3 and third inductance L3 is connect with electrolytic capacitor CE3 and zener diode ZD1；First capacitance
The output terminal of one end connection 3rd resistor R3 of C1, the power end VDD of other end connection power supply chip U1；4th diode
The output terminal of the cathode connection 3rd resistor R3 of D4, the cathode and zener diode ZD1 of anode connection electrolytic capacitor CE3 are just
Pole；The output terminal of the anode connection third inductance L3 of the 5th diode D5, the power end of cathode connection power supply chip U1
VDD.Preferably, the model of the power supply chip U1 can be RM90XX, WS9420 or WS7205, system that but not limited to this.
The sensor assembly include sensor P1 and peripheral auxiliary circuits 6, the power input VCC of the sensor with
Sensor feed circuit 5 connects, and output terminal OUT is connect by peripheral auxiliary circuits 6 with high-voltage linear driving circuit 3.It is described outer
It encloses auxiliary circuit 6 and includes the 4th resistance R4 and the second capacitance C2, the power supply of one end connection sensor P1 of the 4th resistance R4
Input terminal VCC, the output terminal OUT of other end connection sensor P1 simultaneously pass through the second capacitance C2 ground connection.
Correspondingly, it is connected between the high-voltage linear driving circuit 3 and sensor P1 by field-effect tube Q1, the field effect
Should the drain electrode of pipe Q1 connect with high-voltage linear driving circuit 3, grid and source electrode are connect respectively with sensor P1.Specifically, it is described
The drain electrode of field-effect tube Q1 by power regulation resistance group (R5, R6) access high-voltage linear chip U2, grid respectively with sensor
Output terminal OUT, the 4th resistance R4 of P1 and the second capacitance C2 connections, source electrode respectively with the ground terminal GND of sensor P1, second electricity
Hold the zener diode ZD1 connections of C2 and sensor feed circuit 5, and the ground terminal GND ground connection of sensor P1.
In order to further ensure the stability of LED light engine, driving auxiliary circuit, the rectifier bridge are additionally provided in the present invention
By driving, auxiliary circuit connects LED light source respectively and sensor feed circuit (can specifically be saved according to practical circuit conditions
Go), driving auxiliary circuit includes：In the ac input end AC of rectifier bridge BD1, fuse FUSE and varistor VAR is set,
In, fuse FUSE is set on firewire L, and the both ends of varistor VAR connect the ac input end AC of rectifier bridge BD1 respectively, is made
For the entire power supply of carrying out surge protection element protection；In ac input end AC setting X capacitances Cx1, X the capacitance Cx1 and pressure of rectifier bridge BD1
Quick resistance VAR is in parallel, inhibits electromagnetic interference as safe capacitance, eliminates DM EMI；In the DC output end (V of rectifier bridge BD1
+, V-) the second diode D2 of setting, the first electrolytic capacitor CE1 for mutually concatenating and the first diode D1, mutually concatenate second
Electrolytic capacitor CE2 and third diode D3, as PFC (PFC, Power Factor Correction) circuit
Main element, effect are not only raising system or the power factor of circuit, and help to solve electromagnetic interference (EMI) and electromagnetism
Compatible (EMC) problem；In the DC output end anode V+ of rectifier bridge BD1, first resistor R1 and the first inductance parallel with one another are set
L1 sets second resistance R2 and the second inductance L2 parallel with one another, for solving in the DC output end cathode V- of rectifier bridge BD1
Electromagnetic interference (EMI) and electromagnetic compatibility (EMC).
Referring to Fig. 3, Fig. 3 shows that the present invention is based on the LED light engines of the integrated sensor of high-voltage linear driving circuit
Second embodiment.Unlike the first embodiment described in Fig. 2, the sensor P1 in the present embodiment is specially microwave module,
And fuse FUSE, varistor VAR, X capacitance Cx1, the second diode D2, the first diode is omitted according to actual conditions
D1, the second electrolytic capacitor CE2, third diode D3, first resistor R1, the first inductance L1, second resistance R2 and the first capacitance C1
Wait elements.
From the foregoing, it will be observed that the present invention is based on high-voltage linear driving circuit integrated sensor LED light engine by that will sense
Device circuit is combined with LED illumination circuit, greatly improves the performance of LED light engine.Specifically, the present invention has following excellent
Point：
(1) sensor feed circuit 5 is simple, and can both become one formula structure with sensor assembly 4, can also be with sensing
Device module 4 detaches, and is connected on wiring board carrier as independent sector, has no effect when not working to LED illumination circuit；
(2) sensor can both become one formula structure with sensor feed circuit 5, can also be with sensor feed circuit
5 separation, are connected to as independent sector on wiring board carrier, can be replaced in application process according to different needs；
(3) it is onboard can be integrated in circuit by way of grafting, absorption or welding for sensor feed circuit 5 and sensor
On body, flexibility is strong, can effectively reduce the limitation of lamps and lanterns manufacturer and scheme provider；
(4) single unit system peripheral cell is few, simple in structure, easy to assembly, and different lamps can be mounted directly, and forms
Normal formula light engine device；
(5) output current of LED illumination circuit can be adjusted by power regulation resistance group (R5, R6), and flexibility ratio is high.
(6) auxiliary circuit is driven by increase, effectively reduces EMI defects, there is no complexity in structure and installation process
The problem of taking.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of LED light engine of the integrated sensor based on high-voltage linear driving circuit, which is characterized in that including LED illumination
Circuit, sensor circuit and wiring board carrier, the LED illumination circuit and sensor circuit are integrated on wiring board carrier；
The LED illumination circuit includes LED light source and LED light source drive device, and the LED light source drive device includes rectifier bridge
And high-voltage linear driving circuit, the ac input end connection AC power of the rectifier bridge, the DC output end of the rectifier bridge
Anode connects high-voltage linear driving circuit by LED light source, and the DC output end cathode connection high-voltage linear of the rectifier bridge drives
Dynamic circuit；
The sensor circuit includes sensor assembly and sensor feed circuit, and the DC output end connection of the rectifier bridge passes
Sensor power supply circuit, the sensor assembly are straight with sensor feed circuit, high-voltage linear driving circuit and rectifier bridge respectively
Flow negative pole of output end connection.
2. the LED light engine of the integrated sensor as described in claim 1 based on high-voltage linear driving circuit, feature exist
In the sensor feed circuit and/or sensor assembly are integrated in wiring board carrier by way of grafting, absorption or welding
On.
3. the LED light engine of the integrated sensor as described in claim 1 based on high-voltage linear driving circuit, feature exist
In the sensor assembly and sensor feed circuit are split structure or the power supply of the sensor assembly and sensor
Circuit becomes one formula structure.
4. the LED light engine of the integrated sensor as described in claim 1 based on high-voltage linear driving circuit, feature exist
In the LED light source includes multiple light emitting diodes mutually concatenated, and the sensor assembly includes at least one sensor.
5. the LED light engine of the integrated sensor as claimed in claim 4 based on high-voltage linear driving circuit, feature exist
In the sensor assembly further includes the peripheral auxiliary circuits being connect with the sensor, the power input of the sensor
It is connect with sensor feed circuit, output terminal is connect by peripheral auxiliary circuits with high-voltage linear driving circuit.
6. the LED light engine of the integrated sensor as described in claim 1 based on high-voltage linear driving circuit, feature exist
In the sensor feed circuit includes the power supply chip, electrolytic capacitor and the zener diode that are connected with each other, the power supply chip
It is concatenated respectively with electrolytic capacitor and zener diode, the electrolytic capacitor is in parallel with zener diode and is exported to sensor assembly
Voltage stabilizing or constant current.
7. the LED light engine of the integrated sensor as claimed in claim 6 based on high-voltage linear driving circuit, feature exist
In the sensor feed circuit further includes power supply auxiliary circuit, and the power supply chip passes through auxiliary circuit connection sensing of powering
Device module.
8. the LED light engine of the integrated sensor as described in claim 1 based on high-voltage linear driving circuit, feature exist
In further including the driving auxiliary circuit for protecting circuit, the rectifier bridge is by driving auxiliary circuit to connect LED light source respectively
And sensor feed circuit.
9. the LED light engine of the integrated sensor as described in claim 1 based on high-voltage linear driving circuit, feature exist
Include high-voltage linear chip and power regulation resistance group in, the high-voltage linear driving circuit, the high-voltage linear chip it is defeated
Enter end connection LED light source, output terminal connection power regulation resistance group.
10. the LED light engine of the integrated sensor as described in claim 1 based on high-voltage linear driving circuit, feature exist
In being connected between the high-voltage linear driving circuit and sensor assembly by field-effect tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721602415.1U CN207531130U (en) | 2017-11-24 | 2017-11-24 | A kind of LED light engine of the integrated sensor based on high-voltage linear driving circuit |
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| CN201721602415.1U CN207531130U (en) | 2017-11-24 | 2017-11-24 | A kind of LED light engine of the integrated sensor based on high-voltage linear driving circuit |
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| CN207531130U true CN207531130U (en) | 2018-06-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108184280A (en) * | 2017-11-24 | 2018-06-19 | 佛山市国星光电股份有限公司 | A kind of LED light engine of integrated sensor |
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2017
- 2017-11-24 CN CN201721602415.1U patent/CN207531130U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108184280A (en) * | 2017-11-24 | 2018-06-19 | 佛山市国星光电股份有限公司 | A kind of LED light engine of integrated sensor |
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