CN208175049U - A kind of linear constant current LED light with radar inducing function - Google Patents
A kind of linear constant current LED light with radar inducing function Download PDFInfo
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- CN208175049U CN208175049U CN201820653025.5U CN201820653025U CN208175049U CN 208175049 U CN208175049 U CN 208175049U CN 201820653025 U CN201820653025 U CN 201820653025U CN 208175049 U CN208175049 U CN 208175049U
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Abstract
The utility model discloses a kind of linear constant current LED light with radar inducing function,Including AC to DC converter circuit,Radar sensor,Linear constant current circuit,LED illuminating circuit,Resistance-capacitance depressurization type power supply and signal circuit,The output end of AC to DC converter circuit,The positive input terminal of LED circuit,The power input of linear constant current circuit is connected with the positive input terminal of signal circuit,The output end of resistance-capacitance depressurization type power supply is connected with the input terminal of radar sensor,The ground terminal of resistance-capacitance depressurization type power supply,The ground terminal of radar sensor is connected with the negative input end of signal circuit,The output end of radar sensor is connected with the control signal input of signal circuit,The output end of signal circuit is connected with the control signal input of linear constant current circuit,The output end of linear constant current circuit is connected with the negative input end of LED illuminating circuit；Advantage is on the basis of power supply conversion efficiency with higher, and circuit structure is simple, and cost is relatively low.
Description
Technical field
The utility model relates to a kind of linear constant current LED light, more particularly, to a kind of with the linear of radar inducing function
Constant current LED lamp.
Background technique
With being widely used for linear constant current LED light, market also propose other than illumination to function other higher want
It asks, the linear constant current LED light with radar inducing function is come into being.Linear constant current LED light with radar inducing function is logical
It crosses the radar sensor being arranged inside and emits, receives and compare microwave signal constantly to determine linear constant current LED light nearby and be
No someone's activity, then at corresponding lighting mode.Microwave signal has the characteristic for penetrating nonmetallic substance, radar sensor
It may be mounted in closed space, will not influence the overall appearance design of linear constant current LED light, there is radar induction as a result,
The linear constant current LED light of function is used more and more widely.
The existing linear constant current LED light with radar inducing function includes AC to DC converter circuit, switching type power supply, thunder
It is as shown in Figure 1 up to sensor, linear constant current circuit and LED illuminating circuit, structural principle block diagram, wherein exchange turns direct current
There are four ports for road tool：Firewire input terminal AC-L, zero curve input terminal AC-N, output end HV+ and ground terminal, switching type power supply have
Three ports：Input, output end and ground terminal, there are three ports for radar sensor tool：Input, output end and ground terminal,
There are four ports for linear constant current circuit tool：Power input, output end, control signal input and ground terminal, LED illuminating circuit
With positive input terminal and negative input end.The firewire input terminal of AC to DC converter circuit is used to access the firewire of alternating current, zero curve input
Hold the zero curve for accessing alternating current, the output end of AC to DC converter circuit, the positive input terminal of LED illuminating circuit, switching type power supply
Input terminal connected with the power input of linear constant current circuit, the output end of switching type power supply and the input terminal of radar sensor
Connection, the output end of radar sensor are connected with the control signal input of linear constant current circuit, the output of linear constant current circuit
End is connected with the negative input end V- of LED illuminating circuit, the ground terminal of AC to DC converter circuit, the ground terminal of switching type power supply, thunder
The ground terminal of ground terminal and linear constant current circuit up to sensor connects.
But the existing linear constant current LED light with radar inducing function has the following problems：The switch being arranged inside
Type power supply is a kind of circuit for DC high voltage being converted to the circuit theory of step-down switching power supply DC low-voltage, although its
Power supply conversion efficiency with higher, but in order to reduce EMI interference, meet EMI standard, which needs additional increase
Add anti-jamming circuit, component used is more, and circuit structure is complicated, and cost is also higher.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of bases in power supply conversion efficiency with higher
On, circuit structure is simple, the relatively low linear constant current LED light with radar inducing function of cost.
The utility model solves technical solution used by above-mentioned technical problem：A kind of line with radar inducing function
Property constant current LED lamp, including AC to DC converter circuit, radar sensor, linear constant current circuit and LED illuminating circuit, the friendship
The DC circuit that circulates has firewire input terminal, zero curve input, output end and ground terminal, and the radar sensor has input
End, output and ground, the linear constant current circuit have power input, output end, control signal input and connect
Ground terminal, the LED illuminating circuit have positive input terminal and negative input end, and the linear constant current LED light further includes capacitance-resistance drop
Die mould power supply and signal circuit, the resistance-capacitance depressurization type power supply have firewire input terminal, zero curve input terminal, ground terminal and
Output end, the signal circuit have positive input terminal, control signal positive input terminal, control signal negative input end, output
End and ground terminal, the firewire input terminal of the firewire input terminal of the AC to DC converter circuit and the resistance-capacitance depressurization type power supply
Connection and its connecting pin are the firewire input terminal of the linear constant current LED light, described for accessing the firewire input terminal of alternating current
The zero curve input terminal of AC to DC converter circuit connected with the zero curve input terminal of the resistance-capacitance depressurization type power supply and its connecting pin
For the zero curve input terminal of the linear constant current LED light, for accessing the zero curve input terminal of alternating current, the exchange turns direct current
The output end on road, the positive input terminal of the LED circuit, the linear constant current circuit power input and the signal
The positive input terminal of transmission circuit connects, the ground connection of the ground terminal of the AC to DC converter circuit, the signal circuit
End is connected with the ground terminal of the linear constant current circuit；The output end of the resistance-capacitance depressurization type power supply and the radar pass
The input terminal of sensor connects, the ground terminal of resistance-capacitance depressurization type power supply, the ground terminal of the radar sensor and described
Signal circuit control signal negative input end connection, the output end of the radar sensor and the signal transmission
The control signal positive input terminal of circuit connects, the control of the output end of the signal circuit and the linear constant current circuit
Signal input part connection processed, the output end of the linear constant current circuit are connected with the negative input end of the LED illuminating circuit.
The resistance-capacitance depressurization type power supply includes full-bridge rectifier, first capacitor, the second capacitor and first diode, described
The second capacitor be electrolytic capacitor, one end of the first capacitor is the firewire input terminal of the resistance-capacitance depressurization type power supply,
3rd foot of the full-bridge rectifier be the resistance-capacitance depressurization type power supply zero curve input terminal, the first capacitor it is another
One end is connected with the 1st foot of the full-bridge rectifier, and the 2nd foot of the full-bridge rectifier, second capacitor are just
Pole is connected with the cathode of the first diode and its connecting pin is the output end of the resistance-capacitance depressurization type power supply, described
The anode of 4th foot of full-bridge rectifier, the cathode of second capacitor and the first diode connects and its connecting pin
For the ground terminal of the resistance-capacitance depressurization type power supply.
The signal circuit includes photoelectrical coupler, first resistor and the second diode of model EL817, institute
1st foot of the photoelectrical coupler stated is the control signal positive input terminal of the signal circuit, the photoelectrical coupler
The 2nd foot be the signal circuit control signal negative input end, the 3rd foot of the photoelectrical coupler is described
The output end of signal circuit, one end and described second of the 4th foot of the photoelectrical coupler, the first resistor
The cathode of diode connects, and the other end of the first resistor is the positive input terminal of the signal circuit, described
The ground terminal of the just extremely described signal circuit of second diode.
The linear constant current circuit includes the constant current chip of model SM2083, second resistance, 3rd resistor and the 4th
Resistance；1st foot of the constant current chip is connected with one end of the second resistance, and the other end of the second resistance is
The power input of the linear constant current circuit, the 3rd foot of the constant current chip, one end of the 3rd resistor and institute
The one end for the 4th resistance stated connects and its connecting pin is the ground terminal of the linear constant current circuit, the 3rd resistor
The other end is connected with the 4th foot of the constant current chip and its connecting pin is the control signal input of the linear constant current circuit
End, the 5th foot of the constant current chip are connected with the other end of the 4th resistance, and the 8th foot of the constant current chip is
The output end of the linear constant current circuit.
Compared with prior art, the utility model has the advantage of taken by resistance-capacitance depressurization type power supply and signal circuit
For existing switching type power supply, resistance-capacitance depressurization type power supply is based on resistance-capacitance depressurization working principle, high voltage alternating current is converted to low
The DC voltage of voltage provides control power supply for linear constant current LED light, on the basis of power supply conversion efficiency with higher, no
There are EMI interference problem, do not need additionally to increase anti-jamming circuit, component used is less, and circuit structure is simple, cost
It is lower.
Detailed description of the invention
Fig. 1 is the structural block diagram of the existing linear constant current LED light with radar inducing function；
Fig. 2 is the structural block diagram of the linear constant current LED light with radar inducing function of the utility model；
Fig. 3 is the circuit structure diagram of the linear constant current LED light with radar inducing function of the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
Embodiment one：As shown in Fig. 2, a kind of linear constant current LED light with radar inducing function, including exchange turn direct current
Circuit, radar sensor, linear constant current circuit and LED illuminating circuit, AC to DC converter circuit have firewire input terminal, zero curve defeated
Enter end, output and ground, radar sensor has input, output end and ground terminal, and linear constant current circuit has power supply
Input, output end, control signal input and ground terminal, LED illuminating circuit has positive input terminal and negative input end, linear permanent
Stream LED light further includes resistance-capacitance depressurization type power supply and signal circuit, and resistance-capacitance depressurization type power supply has firewire input terminal, zero curve defeated
Enter end, ground terminal and output end, signal circuit has positive input terminal, control signal positive input terminal, control signal negative input
End, output and ground, the firewire input terminal of AC to DC converter circuit are connected with the firewire input terminal of resistance-capacitance depressurization type power supply
And its connecting pin is the firewire input terminal of linear constant current LED light, for accessing the firewire input terminal of alternating current, AC to DC converter circuit
Zero curve input terminal connected with the zero curve input terminal of resistance-capacitance depressurization type power supply and its connecting pin be linear constant current LED light zero curve it is defeated
Enter end, for accessing the zero curve input terminal of alternating current, the output end of AC to DC converter circuit, the positive input terminal of LED circuit, linear perseverance
The power input of current circuit is connected with the positive input terminal of signal circuit, and ground terminal, the signal of AC to DC converter circuit pass
The ground terminal on transmission of electricity road is connected with the ground terminal of linear constant current circuit；The output end of resistance-capacitance depressurization type power supply and radar sensor
Input terminal connection, the control signal of the ground terminal of resistance-capacitance depressurization type power supply, the ground terminal of radar sensor and signal circuit
Negative input end connection, the output end of radar sensor are connected with the control signal positive input terminal of signal circuit, signal transmission
The output end of circuit is connected with the control signal input of linear constant current circuit, and the output end and LED of linear constant current circuit shine
The negative input end of circuit connects.
Embodiment two：As shown in Fig. 2, a kind of linear constant current LED light with radar inducing function, including exchange turn direct current
Circuit, radar sensor, linear constant current circuit and LED illuminating circuit, AC to DC converter circuit have firewire input terminal, zero curve defeated
Enter end, output and ground, radar sensor has input, output end and ground terminal, and linear constant current circuit has power supply
Input, output end, control signal input and ground terminal, LED illuminating circuit has positive input terminal and negative input end, linear permanent
Stream LED light further includes resistance-capacitance depressurization type power supply and signal circuit, and resistance-capacitance depressurization type power supply has firewire input terminal, zero curve defeated
Enter end, ground terminal and output end, signal circuit has positive input terminal, control signal positive input terminal, control signal negative input
End, output and ground, the firewire input terminal of AC to DC converter circuit are connected with the firewire input terminal of resistance-capacitance depressurization type power supply
And its connecting pin is the firewire input terminal of linear constant current LED light, for accessing the firewire input terminal of alternating current, AC to DC converter circuit
Zero curve input terminal connected with the zero curve input terminal of resistance-capacitance depressurization type power supply and its connecting pin be linear constant current LED light zero curve it is defeated
Enter end, for accessing the zero curve input terminal of alternating current, the output end of AC to DC converter circuit, the positive input terminal of LED circuit, linear perseverance
The power input of current circuit is connected with the positive input terminal of signal circuit, and ground terminal, the signal of AC to DC converter circuit pass
The ground terminal on transmission of electricity road is connected with the ground terminal of linear constant current circuit；The output end of resistance-capacitance depressurization type power supply and radar sensor
Input terminal connection, the control signal of the ground terminal of resistance-capacitance depressurization type power supply, the ground terminal of radar sensor and signal circuit
Negative input end connection, the output end of radar sensor are connected with the control signal positive input terminal of signal circuit, signal transmission
The output end of circuit is connected with the control signal input of linear constant current circuit, and the output end and LED of linear constant current circuit shine
The negative input end of circuit connects.
In the present embodiment, as shown in figure 3, resistance-capacitance depressurization type power supply includes full-bridge rectifier DB1, first capacitor C1, second
Capacitor C2 and first diode D1, first capacitor C1 be thin-film capacitor, the second capacitor C2 be electrolytic capacitor, the one of first capacitor C1
End is the firewire input terminal of resistance-capacitance depressurization type power supply, and the 3rd foot of full-bridge rectifier DB1 is that the zero curve of resistance-capacitance depressurization type power supply inputs
End, the other end of first capacitor C1 are connected with the 1st foot of full-bridge rectifier DB1, the 2nd foot, the second capacitor of full-bridge rectifier DB1
The anode of C2 is connected with the cathode of first diode D1 and its connecting pin is the output end of resistance-capacitance depressurization type power supply, full-bridge rectifier
The anode of the 4th foot of DB1, the cathode of the second capacitor C2 and first diode D1 connects and its connecting pin is resistance-capacitance depressurization type power supply
Ground terminal.
In the present embodiment, as shown in figure 3, signal circuit includes the photoelectrical coupler U1 of model EL817, the first electricity
The 1st foot for hindering R1 and the second diode D2, photoelectrical coupler U1 is the control signal positive input terminal of signal circuit, photoelectricity coupling
The 2nd foot of clutch U1 is the control signal negative input end of signal circuit, and the 3rd foot of photoelectrical coupler U1 is signal transmission electricity
The output end on road, the 4th foot of photoelectrical coupler U1, one end of first resistor R1 are connected with the cathode of the second diode D2, and first
The other end of resistance R1 is the positive input terminal of signal circuit, the just extremely ground connection of signal circuit of the second diode D2
End.
In the present embodiment, as shown in figure 3, linear constant current circuit includes the constant current chip U2 of model SM2083, the second electricity
Hinder R2,3rd resistor R3 and the 4th resistance R4；The 1st foot of constant current chip U2 is connected with one end of second resistance R2, second resistance
The other end of R2 is the power input of linear constant current circuit, one end and the 4th of the 3rd foot of constant current chip U2,3rd resistor R3
One end of resistance R4 connects and its connecting pin is the ground terminal of linear constant current circuit, the other end and constant current chip of 3rd resistor R3
The 4th foot of U2 connects and its connecting pin is the control signal input of linear constant current circuit, the 5th foot of constant current chip U2 and the 4th
The other end of resistance R4 connects, and the 8th foot of constant current chip U2 is the output end of linear constant current circuit.
In the present embodiment, AC to DC converter circuit is realized using full-bridge rectifier DB2, and LED shines electric by n LED hair
Optical diode connects to be formed, and n is the integer more than or equal to 2.
Claims (4)
1. a kind of linear constant current LED light with radar inducing function, including it is AC to DC converter circuit, radar sensor, linear
Constant-current circuit and LED illuminating circuit, the AC to DC converter circuit have firewire input terminal, zero curve input, output end and
Ground terminal, the radar sensor have input, output end and ground terminal, and the linear constant current circuit has power supply defeated
Entering end, output end, control signal input and ground terminal, the LED illuminating circuit has positive input terminal and negative input end,
It is characterized in that the linear constant current LED light further includes resistance-capacitance depressurization type power supply and signal circuit, the resistance-capacitance depressurization
Type power supply has firewire input terminal, zero curve input terminal, ground terminal and output end, and the signal circuit has positive input
End, control signal positive input terminal, control signal negative input end, output and ground, the fire of the AC to DC converter circuit
Line input terminal is connected with the firewire input terminal of the resistance-capacitance depressurization type power supply and its connecting pin is the linear constant current LED light
Firewire input terminal, for accessing the firewire input terminal of alternating current, the zero curve input terminal of the AC to DC converter circuit and described
Resistance-capacitance depressurization type power supply zero curve input terminal connection and its connecting pin be the linear constant current LED light zero curve input terminal,
For accessing the zero curve input terminal of alternating current, the positive input of the output end of the AC to DC converter circuit, the LED circuit
It holds, the power input of the linear constant current circuit is connected with the positive input terminal of the signal circuit, the friendship
The ground terminal of the ground terminal of circulation DC circuit, the ground terminal of the signal circuit and the linear constant current circuit connects
It connects；The output end of the resistance-capacitance depressurization type power supply is connected with the input terminal of the radar sensor, the resistance-capacitance depressurization
The control signal negative input end of the ground terminal of type power supply, the ground terminal of the radar sensor and the signal circuit
Connection, the output end of the radar sensor is connected with the control signal input of the signal circuit, described
The output end of signal circuit is connected with the control signal input of the linear constant current circuit, the linear constant current electricity
The output end on road is connected with the negative input end of the LED illuminating circuit.
2. a kind of linear constant current LED light with radar inducing function according to claim 1, it is characterised in that described
Resistance-capacitance depressurization type power supply includes full-bridge rectifier, first capacitor, the second capacitor and first diode, and second capacitor is electricity
Capacitor is solved, one end of the first capacitor is the firewire input terminal of the resistance-capacitance depressurization type power supply, the full-bridge rectification
3rd foot of device is the zero curve input terminal of the resistance-capacitance depressurization type power supply, the other end of the first capacitor and described complete
1st foot of bridge rectifier connects, the anode and described first of the 2nd foot of the full-bridge rectifier, second capacitor
The cathode of diode connects and its connecting pin is the output end of the resistance-capacitance depressurization type power supply, and the of the full-bridge rectifier
The anode of 4 feet, the other end of second capacitor and the first diode connects and its connecting pin is the capacitance-resistance
The ground terminal of step down supplies.
3. a kind of linear constant current LED light with radar inducing function according to claim 1, it is characterised in that described
Signal circuit includes photoelectrical coupler, first resistor and the second diode of model EL817, the photoelectrical coupler
The 1st foot be the signal circuit control signal positive input terminal, the 2nd foot of the photoelectrical coupler is described
The control signal negative input end of signal circuit, the 3rd foot of the photoelectrical coupler are the signal circuit
The cathode of output end, the 4th foot of the photoelectrical coupler, one end of the first resistor and second diode connects
It connects, the other end of the first resistor is the positive input terminal of the signal circuit, and second diode is just
The extremely ground terminal of the signal circuit.
4. a kind of linear constant current LED light with radar inducing function according to claim 1, it is characterised in that described
Linear constant current circuit includes constant current chip, second resistance, 3rd resistor and the 4th resistance of model SM2083；The constant current
1st foot of chip is connected with one end of the second resistance, and the other end of the second resistance is the linear constant current
The power input of circuit, the 3rd foot of the constant current chip, one end of the 3rd resistor and the 4th resistance
One end connection and its connecting pin are the ground terminal of the linear constant current circuit, the other end of the 3rd resistor and described
4th foot of constant current chip connects and its connecting pin is the control signal input of the linear constant current circuit, the constant current
5th foot of chip is connected with the other end of the 4th resistance, and the 8th foot of the constant current chip is the linear constant current
The output end of circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820653025.5U CN208175049U (en) | 2018-05-03 | 2018-05-03 | A kind of linear constant current LED light with radar inducing function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820653025.5U CN208175049U (en) | 2018-05-03 | 2018-05-03 | A kind of linear constant current LED light with radar inducing function |
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| Publication Number | Publication Date |
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| CN208175049U true CN208175049U (en) | 2018-11-30 |
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| CN201820653025.5U Active CN208175049U (en) | 2018-05-03 | 2018-05-03 | A kind of linear constant current LED light with radar inducing function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630762A (en) * | 2020-11-27 | 2021-04-09 | 隔空微电子（广州）有限公司 | Radar response subassembly |
-
2018
- 2018-05-03 CN CN201820653025.5U patent/CN208175049U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630762A (en) * | 2020-11-27 | 2021-04-09 | 隔空微电子（广州）有限公司 | Radar response subassembly |
| CN112630762B (en) * | 2020-11-27 | 2024-03-01 | 隔空微电子（广州）有限公司 | Radar sensing assembly |
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Effective date of registration: 20200624 Address after: 322009 NO.901, Longqi Road, Suxi Town, Yiwu City, Jinhua City, Zhejiang Province Patentee after: Harmony Mingxin (Yiwu) Photoelectric Technology Co.,Ltd. Address before: 312071 Zhejiang province Shaoxing Paojiang Industrial Zone No. 308 North Road in the robe Patentee before: SUNNY WORLD (SHAOXING) GREEN LIGHTING Co.,Ltd. |