CN107517516A - A kind of double bright control systems of radar induction LED driving - Google Patents
A kind of double bright control systems of radar induction LED driving Download PDFInfo
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- CN107517516A CN107517516A CN201710694544.6A CN201710694544A CN107517516A CN 107517516 A CN107517516 A CN 107517516A CN 201710694544 A CN201710694544 A CN 201710694544A CN 107517516 A CN107517516 A CN 107517516A
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- 238000001914 filtration Methods 0.000 claims abstract description 35
- 239000004065 semiconductor Substances 0.000 claims abstract description 28
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- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000003534 oscillatory effect Effects 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention relates to a kind of double bright control systems of radar induction LED driving, including AC input module, EMI modules, rectification filtering module, IC integrated control module, current-limiting resistance R, metal-oxide-semiconductor, inductor module, rectification filtering module, LED load module and radar control module, in addition to module A and module B.This control system can meet the actual demand of the design in high-power such as street lamp Tunnel Lamp parking lot place, will not damage equipment；Can be with two of independent control LED different power brightness, so that LED drivings can reliably realize folk art term difference brightness in any power bracket, and not by two power luminance differences away from size perplex so that product integrated design uses more convenient and reliable and relatively low manufacturing cost.
Description
Technical field
The invention belongs to double bright control systems of LED light control technology field, more particularly to a kind of driving of radar induction LED
System.
Background technology
It is known that LED radars sensing driving power is exactly to realize the control of different capacity brightness.Work as detections of radar
Someone and LED high brightness during vehicle, low-light level state is in when object to be detected leaves detection range LED in the range of arriving, can
Save energy and can and be adjusted to low bright suitable small visibility, beneficial to the normal use of monitoring device.This is within small-power 20W
Product on easily realize, it is and relatively difficult to achieve in relatively high power.Because low power highlighted and low light current power phase
Difference is too big, typically in 100%-15% or so.What one below 20W driving can be achieved on.But if it is required that product power compared with
It is big it require that the differences of two output brightness powers of this driving are also big, as 200W highlight 3W it is low it is bright be 1.5%, from 100% to
1.5% so big gap makes LED cisco unity malfunctions.Subtract low power gap can make again low bright power too it is high cause it is unnecessary
Waste.If also once having reached manufacturing cost using the double loads of dual power supply are not only cumbersome for installation, use is also inconvenient.Just must for this
Must solve existing practical problem.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of double bright control systems of radar induction LED driving, this control
System processed can meet the actual demand of the design in high-power such as street lamp Tunnel Lamp parking lot place, will not damage and set
It is standby；Can be with two of independent control LED different power brightness so that LED drivings can be reliable in any power bracket
Realize folk art term difference brightness, and not by two power luminance differences away from size perplex so that product integrated design uses
More convenient and reliable and relatively low manufacturing cost.
The present invention is achieved through the following technical solutions, there is provided a kind of double bright control systems of radar induction LED driving,
Including main circuit, main circuit be sequentially connected electrically AC input module, EMI modules, rectification filtering module, the integrated control moulds of IC
Group, current-limiting resistance R, metal-oxide-semiconductor, inductor module, rectification filtering module and LED load module；Also include radar control module, it is described
The integrated control modules of IC include IC integrated manipulators, supply voltage VCC, control metal-oxide-semiconductor Q and constant current adjustment resistance RS, power supply electricity
Pressure VCC is derived from inductor module；IC integrated manipulators electrically connect with current-limiting resistance R and constant current adjustment resistance RS respectively, control metal-oxide-semiconductor
Q input electrically connects with supply voltage VCC, and control metal-oxide-semiconductor Q output electrically connects with IC integrated manipulators；Radar control module
It is grounded altogether with main circuit, output end is with controlling metal-oxide-semiconductor Q control terminal to electrically connect control IC integrated control modules.
Preferably, also including module A, the module A includes chip IC 2, inductance coil L, diode D, supplying resistance
R1 and constant current resistance RA；The feeder ear of module A and the power electric connection of rectification filtering module, the input and inductor wire of module A
The electrical connection of L primary one end is enclosed, output end electrically connects with LED load module；The power output end of rectification filtering module is through power supply electricity
R1 access chip IC2 are hindered, an output pin connecting resistance RA of chip IC 2 adjusts low bright output current, the input of chip IC 2 to ground
Pin connects inductance coil L primary one end, and the power supply that another end primary inductance coil L connects rectification filtering module completes oscillatory work, electricity
Feel L level level of coil and export access LED load module through diode D.
Preferably, also including module B, the module B includes supplying resistance RB, triode Q1, triode Q2, diode
DA, voltage-reference diode DZ and resistance RC；Module B input and the power electric connection of rectification filtering module, output end are born with LED
Carry module electrical connection；The power output end of rectification filtering module connects triode Q1 base stages through supplying resistance RB while connects voltage stabilizing benchmark
Voltage-stabiliser tube DZ to establish reference voltage, triode Q1 colelctor electrode amplification output turns it on to pliotron Q2, rectification
The power output end of filtration module accesses LED load module by triode Q2 through diode DA constant currents, then is passed through by LED load module
Constant current resistance RC flows into ground terminal.
Preferably, the module A or B circuits completed with main circuit design on same circuit board it is integrated.
The main circuit of radar sensing control and increase module A or B circuits each complete independent control work and make two grades
Brightness arbitrary size is not involved.
Beneficial effects of the present invention are：
1）A kind of double bright control systems of radar induction LED driving of the present invention can meet high-power as street lamp Tunnel Lamp stops
The actual demand of the design in the place such as field, will not damage equipment.
2）A kind of double bright control systems of present invention radar induction LED driving can be different with two of independent control LED
Power brightness so that LED drivings can reliably realize folk art term difference brightness in any power bracket, and not by two work(
Rate luminance difference away from size puzzlement so that product design use more convenient and reliable and relatively low manufacturing cost.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the fundamental diagram of prior art；
Fig. 2 is the fundamental diagram of the embodiment of the present invention 1.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Below in conjunction with the accompanying drawings and specific embodiment is further described to the application principle of the present invention.
Prior art, such as Fig. 1, high-power more than the 20W of scheme of existing market popularity uses the product of two different capacities, more light
Degree is sensed by radar to be controlled, and it is double bright to realize that less brightness is not sensed control by radar.It is required that the place of low-power is then universal
Using other integrated isolation or non-isolated scheme, a kind of double bright control systems of radar induction LED driving, including main electricity
Road and radar control module 10, main circuit include the integrated control mould of AC input module 1, EMI modules 2, rectification filtering module 3, IC
Group 4, current-limiting resistance R5, metal-oxide-semiconductor 6, inductor module 7, rectification filtering module 8, LED load module 9；The AC input module 1 with
EMI modules 2 electrically connect, and EMI modules 2 electrically connect with rectification filtering module 3, rectification filtering module 3 and the electricity of IC integrated control modules 4
Connection, IC integrated control modules 4 electrically connect with current-limiting resistance R5, and current-limiting resistance R5 electrically connects with metal-oxide-semiconductor 6, metal-oxide-semiconductor 6 and inductance
Module 7 electrically connects, and inductor module 7 electrically connects with rectification filtering module 8, and rectification filtering module 8 electrically connects with LED load module 9,
The integrated control modules 4 of the IC include IC integrated manipulators, supply voltage VCC, control metal-oxide-semiconductor Q and constant current adjustment resistance RS, supply
Piezoelectric voltage VCC is derived from inductor module 7；IC integrated manipulators electrically connect with current-limiting resistance R and constant current adjustment resistance RS respectively, control
Metal-oxide-semiconductor Q input electrically connects with constant current adjustment resistance RS, and control metal-oxide-semiconductor Q output electrically connects with IC integrated manipulators；Radar
Control module 10 is grounded altogether with main circuit, and output end is with controlling metal-oxide-semiconductor Q control terminal to electrically connect control IC integrated control modules
4。
Operation principle is as shown in Figure 1.
Civil power flows into rectification filtering module 3 from AC input module 1 through EMI modules 2, and IC collection is flowed into by the module of rectifying and wave-filtering 3
Current-limiting resistance R5 is flowed into control module 4, then by IC integrated control modules 4, metal-oxide-semiconductor 6 is flowed into by current-limiting resistance R5, then by MOS
Pipe 6 flows into inductor module 7, flows into rectification filtering module 8 by the module of inductance 7, then drives LED load module 9；Radar control mould
Block 10 is that the number of winning the confidence is inputted again after being exported by inductor module 7, is controlled by the inside of radar control module 10 output positive signal
Control metal-oxide-semiconductor Q conductings are realized a constant current adjustment resistance RS ground connection highlighted in IC integrated control modules 4, when radar output is born
Signal is low bright to control in IC integrated control modules 4 constant current adjustment resistance RS to disconnect to realize, is so reduced and increases power
Output.
This can only be the double bright difference powers of below 20W away from small product, if requiring high-power as street lamp Tunnel Lamp stops
This local design such as field cannot meet actual demand；Such as low bright 3W of highlighted 200W, then need to design in 3W just by 200W
It can not light or even burn out light fixture.
Embodiment 1, the present invention are to increase module A or module B on the basis of intrinsic to overcome above mentioned problem, see Fig. 2,
A kind of double bright control systems of radar induction LED driving, including main circuit, main circuit be sequentially connected electrically AC input module 1,
The integrated control module 4 of EMI modules 2, rectification filtering module 3, IC, current-limiting resistance R5, metal-oxide-semiconductor 6, inductor module 7, rectifying and wave-filtering mould
Block 8 and LED load module 9；Also include radar control module 10, the integrated control modules 4 of the IC include IC integrated manipulators, supplied
Piezoelectric voltage VCC, control metal-oxide-semiconductor Q and constant current adjustment resistance RS, supply voltage VCC are derived from inductor module 7；IC integrated manipulators point
Do not electrically connected with current-limiting resistance R and constant current adjustment resistance RS, control metal-oxide-semiconductor Q input electrically connects with supply voltage VCC, controls
Metal-oxide-semiconductor Q output electrically connects with IC integrated manipulators；Radar control module 10 is grounded altogether with main circuit, output end and control MOS
Pipe Q control terminal electrical connection goes to control IC integrated control modules 4.
Also include module A, the module A includes chip IC 2, inductance coil L, diode D, supplying resistance R1 and Constant Electric Current
Hinder RA；The feeder ear of module A and the power electric connection of rectification filtering module 3, input and the inductance coil L primary one of module A
End electrical connection, output end electrically connect with LED load module 9；The power output end of rectification filtering module 3 accesses through supplying resistance R1
Chip IC 2, an output pin connecting resistance RA of chip IC 2 adjust low bright output current to ground, and the input pin of chip IC 2 connects inductance
Coil L primary one end, the power supply that another end primary inductance coil L connects rectification filtering module 3 complete oscillatory work, inductance coil L
Secondary level exports access LED load module 9 through diode D.
Also include module B（Alternative module A）, the module B include supplying resistance RB, triode Q1, triode Q2, two
Pole pipe DA, voltage-reference diode DZ and resistance RC；Module B input and the power electric connection of rectification filtering module 3, output end with
LED load module 9 electrically connects；The power output end of rectification filtering module 3 connects triode Q1 base stages through supplying resistance RB while connect
Voltage stabilizing voltage-reference diode DZ to establish reference voltage, triode Q1 colelctor electrode amplification output leads it to pliotron Q2
Logical, the power output end of rectification filtering module 3 accesses LED load module 9 by triode Q2 through diode DA constant currents, then by LED
Load blocks 9 flow into ground terminal through constant current resistance RC.
The module A or B circuits are completed on same circuit board integrated with main circuit design.
Operation principle is as follows：
Other parts and Fig. 1 are essentially identical in addition to the connected mode of radar control module 10 and increase module A or module B, herein
The output of the signal of radar control module 10 goes control control metal-oxide-semiconductor Q to be gone to control the integrated control modules 4 of IC by control metal-oxide-semiconductor Q
VCC power supplies are not control shunt resistance RS, but control supply voltage VCC break-make, will not destroy master because resistance RS is cut off
Circuit working state and the integrated control modules 4 of damage IC, make its holding circuit control metal-oxide-semiconductor Q when radar induced signal arrives
Conducting makes the supply voltage VCC of the integrated control modules 4 of IC obtain electricity, makes the integrated control normal works of module 4 of IC, and now light fixture is high
The single gear of bright constant current output；Metal-oxide-semiconductor Q is controlled to block then IC is integrated to control module 4 to lose power supply when radar signal loses
Voltage VCC and the high brightness that is stopped fail, and this design for allowing for original parameter keeps constant, enhances the reliable of drive circuit
Property.
Other product it is low it is bright be to carry out complete independently by module A or B, do not influence highlighted design performance, avoid driving
Two grades of difference powers away from it is big the problem of.
First method is to use module A, and the power supply of chip IC 2 of module A is to take prime rectification out-put supply；Chip IC 2
Electricity work supply load LED after inductance coil L and diode rectification is obtained, adjusts the RA and inductance coil L parameters in this module A
It is set to obtain required low bright power.
Another method is to replace module A with module B, and module B working power is identical with module A, adjusts RB ginseng
Number turns on triode Q1, and triode Q1 conducting causes triode Q2 to turn on electric current after triode Q2 is turned on and arrived through power supply again
Triode Q2 through diode forward flow into load LED again through resistance RC flow into power supply negative terminal, due to triode Q1 base stage to send out
Penetrate base and be connected to voltage-reference diode DZ for keeping the constant of output current, adjustment RC and voltage-reference diode DZ parameter obtains it
Required low bright power.
The integrated design requirement with the same same load of driving is realized through this design.Using this patent design side
Case fundamentally solve the problems, such as integrated high-power radar sensing product can not control the larger two grades of brightness of gap.
This patent is independent not interfere with each other and can overcome design parameter will not be because due to two grades of output control circuit
Conversion gear destroys its optimum state.Due to being that the interference that two independent loops it also avoid radar module ensure that radar sense
Answer the stability of module, it is ensured that the high reliability of product and Geng Gao service life.
Certainly, described above is also not limited to the example above, the technical characteristic of the invention without description can by or
Realized, will not be repeated here using prior art；Above example and accompanying drawing are merely to illustrate technical scheme
It is limitation of the present invention, the present invention is described in detail with reference to preferred embodiment, the ordinary skill people of this area
Member is it should be appreciated that change, remodeling, the addition that those skilled in the art are made in the essential scope of the present invention
Or replace the claims that without departure from spirit of the invention, should also belong to the present invention.
Claims (4)
1. a kind of double bright control systems of radar induction LED driving, including main circuit, main circuit are the AC input being sequentially connected electrically
Module（1）, EMI modules（2）, rectification filtering module（3）, the integrated control modules of IC（4）, current-limiting resistance R (5), metal-oxide-semiconductor（6）, electricity
Feel module（7）, rectification filtering module（8）With LED load module（9）；It is characterized in that：Also include radar control module（10）,
The integrated control modules of the IC（4）Including IC integrated manipulators, supply voltage VCC, control metal-oxide-semiconductor Q and constant current adjustment resistance RS,
Supply voltage VCC is derived from inductor module（7）；IC integrated manipulators electrically connect with current-limiting resistance R and constant current adjustment resistance RS respectively,
Control metal-oxide-semiconductor Q input electrically connects with supply voltage VCC, and control metal-oxide-semiconductor Q output electrically connects with IC integrated manipulators；Radar
Control module（10）It is grounded altogether with main circuit, output end is with controlling metal-oxide-semiconductor Q control terminal to electrically connect the integrated control moulds of control IC
Block（4）.
A kind of 2. double bright control systems of radar induction LED driving according to claim 1, it is characterised in that：Also include
Module A, the module A include chip IC 2, inductance coil L, diode D, supplying resistance R1 and constant current resistance RA；The confession of module A
Electric end and rectification filtering module（3）Power electric connection, the input of module A electrically connects with inductance coil L primary one end, exports
End and LED load module（9）Electrical connection；Rectification filtering module（3）Power output end through supplying resistance R1 access chip IC2,
One output pin connecting resistance RA of chip IC 2 adjusts low bright output current to ground, at the beginning of the input pin of chip IC 2 meets inductance coil L
Level one end, another end primary inductance coil L connect rectification filtering module（3）Power supply complete oscillatory work, L level level of inductance coil
Access LED load module is exported through diode D（9）.
A kind of 3. double bright control systems of radar induction LED driving according to claim 2, it is characterised in that：Also include
Module B, the module B include supplying resistance RB, triode Q1, triode Q2, diode DA, voltage-reference diode DZ and resistance
RC；Module B input and rectification filtering module（3）Power electric connection, output end and LED load module（9）Electrical connection；It is whole
Flow filtration module（3）Power output end connect triode Q1 base stages through supplying resistance RB and meanwhile connect voltage stabilizing voltage-reference diode DZ to ground
Reference voltage is established, triode Q1 colelctor electrode amplification output turns it on to pliotron Q2, rectification filtering module（3）'s
Power output end accesses LED load module by triode Q2 through diode DA constant currents（9）, then by LED load module（9）Through constant current
Resistance RC flows into ground terminal.
A kind of 4. double bright control systems of radar induction LED driving according to Claims 2 or 3, it is characterised in that：It is described
Module A or B circuits are completed on same circuit board integrated with main circuit design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694544.6A CN107517516B (en) | 2017-08-15 | 2017-08-15 | Radar induction LED driven double-brightness control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694544.6A CN107517516B (en) | 2017-08-15 | 2017-08-15 | Radar induction LED driven double-brightness control system |
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| Publication Number | Publication Date |
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| CN107517516A true CN107517516A (en) | 2017-12-26 |
| CN107517516B CN107517516B (en) | 2023-10-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113844A (en) * | 2019-05-31 | 2019-08-09 | 重庆励华芯微电子有限公司 | A kind of control circuit and its monitoring camera, monitoring system of LED |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107517516B (en) | 2023-10-27 |
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