CN207706485U - A kind of LED power - Google Patents
A kind of LED power Download PDFInfo
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- CN207706485U CN207706485U CN201721790555.6U CN201721790555U CN207706485U CN 207706485 U CN207706485 U CN 207706485U CN 201721790555 U CN201721790555 U CN 201721790555U CN 207706485 U CN207706485 U CN 207706485U
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Abstract
The utility model is related to a kind of LED powers, three firewires of three-phase alternating current are become any one firewire and zero curve by the first switch adjusted for three-phase phase to power to power-switching circuit, equilibrium is converted to two-phase alternating current between realizing three phase network phase, it is not required to distribution box three-phase electricity and is converted to two-phase electricity, reduce user cost and installation difficulty, the DALI signals of input are converted into light modulation by the second chip and switching signal exports, the light modulation of input and switching signal are converted to stable pwm signal and exported by the first chip, pwm signal passes through current rectifying and wave filtering circuit respectively, colour temperature adjusts circui and power-sensing circuit, which are realized, to be stablized without fluctuation, DALI intelligent controls, the function of adjustable color and power adjustable.
Description
Technical field
The utility model is related to lighting technical fields, and in particular to a kind of LED power.
Background technology
LED illumination has energy-efficient, and securely and reliably, installation is simple, powerful, it is environmentally friendly the advantages that and obtained the whole world
Wideling popularize for various countries is universal, and LED illumination is widely used in public place and domestic lighting, is a kind of eyeshield light of the health of green
Source, the requirement of client the next high at present, and function also requires more and more, such as large-scale luxury stores's requirement multiple productions of bar shaped panel light
Product are seamlessly connected, low harmony wave, are stablized without fluctuation, and DALI intelligent controls, adjustable color are integrated, and power adjustable etc. realizes circuit ratio
It is more complex cumbersome, and existing product can not provide it is a kind of by low harmony wave, without stroboscopic, DALI controls, adjustable color and power
The adjustable multifunctional efficient LED switch power supply being integrated in one.
Utility model content
Technical problem to be solved in the utility model is：A kind of stabilization is provided without fluctuation, DALI intelligent controls, colour temperature can
The multifunctional efficient LED switch power supply that tune and power adjustable are integrated in one.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of LED power, including first
Switch, second switch, third switch, power-switching circuit, the first chip, the second chip, the first triode, transformer, rectification
Filter circuit, colour temperature adjusts circui and power-sensing circuit；
The input terminal of the first switch is connected with three-phase alternating current input, the output end of the first switch and the electricity
The input terminal of power-switching circuit is connected；
The output end of the power-switching circuit is connected with the first chip and the second chip respectively；
The input terminal of second chip is connected with the input of DALI signals, the output end of first chip and the one or three pole
The grid of pipe is connected, and the source electrode of first triode is connected with the input terminal of power-sensing circuit, first triode
Drain electrode is connected with the input terminal of transformer, and first triode is used to generate switching current signal according to PWM signals, will open
It closes current signal and is transferred to power-sensing circuit and transformer respectively；
The first output end and second output terminal of the power-sensing circuit respectively with the second input terminal of the first chip and
The input terminal of second switch is connected, and the output end of the second switch is connected with the third input terminal of the first chip；
The output end of the transformer is connected with the input terminal of current rectifying and wave filtering circuit, the output end of the current rectifying and wave filtering circuit
It is connected with the input terminal of third switch, the output end of the third switch is connected with colour temperature adjusts circui；
The output end of second chip is connected with the first input end of the first chip.
Further, the first switch is phase change-over switch.
Further, further include driving circuit for driving the first triode, the driving circuit include first resistor,
Second resistance, 3rd resistor and the first diode, one end of the first resistor are connected with the first chip, the first resistor
The other end is connected with the negative terminal of one end of second resistance and the first diode respectively, the other end of second resistance and the first triode
Grid be connected, the anode of the first diode is connected with one end of 3rd resistor, the second resistance and the first diodes in parallel,
The other end of the 3rd resistor is connected with the source electrode of the first triode.
Further, the power-sensing circuit includes the detection resistance of multi-channel parallel.
Further, the current rectifying and wave filtering circuit includes the second diode, third diode, the four or two pole being sequentially connected
Pipe and the 5th diode, further include the 4th resistance, the 5th resistance, the 6th resistance, the first capacitance, the second capacitance and the two or three pole
Pipe, one end of first capacitance are connected with transformer, and the other end of first capacitance is connected with the second diode, and the five or two
One end of pole pipe is connected with one end of one end of the second capacitance and the 6th resistance respectively, the other end and transformation of second capacitance
Device is connected, and the other end of the 6th resistance is connected with the grid of the second triode, one end of the 6th resistance and the 4th electricity
One end of resistance is connected, and the other end of the 4th resistance is connected with one end of the 5th resistance, the other end of the 5th resistance and
The drain electrode of second triode is connected.
Further, the colour temperature adjusts circui includes multichannel different colours and the LED of parallel connection.
The beneficial effects of the utility model are：By the first switch that is adjusted for three-phase phase by three-phase alternating current
Three firewires become any one firewire and zero curve and power to power-switching circuit, are not required to distribution box three-phase electricity and are converted to two-phase
Electricity realizes equilibrium between three phase network phase and is converted to two-phase alternating current, reduces user cost and installation difficulty, pass through the second core
The DALI signals of input are converted to light modulation to piece and switching signal exports, and the first chip converts the light modulation of input and switching signal
It is exported for stable pwm signal, it is real that pwm signal passes through current rectifying and wave filtering circuit, colour temperature adjusts circui and power-sensing circuit respectively
Now stablize the function without fluctuation, DALI intelligent controls, adjustable color and power adjustable, the utility model is reliable and stable, cost
Low and high efficiency.
Description of the drawings
Fig. 1 is the schematic diagram according to a kind of LED power of the utility model；
Fig. 2 is the circuit diagram according to the power-switching circuit and the first chip of a kind of LED power of the utility model；
Fig. 3 is according to the electricity of a kind of the first triode of LED power of the utility model, transformer and current rectifying and wave filtering circuit
Lu Tu；
Fig. 4 is the circuit diagram according to a kind of the second chip of LED power of the utility model；
Label declaration：
1, first switch；2, second switch；3, third switchs；4, power-switching circuit；
5, the first chip；6, the second chip；7, the first triode；8, transformer；
9, current rectifying and wave filtering circuit；10, colour temperature adjusts circui；11, power-sensing circuit.
Specific implementation mode
For technology contents, the objects and the effects of the utility model are described in detail, below in conjunction with embodiment and match
Attached drawing is closed to be explained.
The design of the utility model most critical is：Balanced conversion between realizing three phase network phase is switched by phase adjusted
For two-phase alternating current, DALI signals are converted into light modulation and switching signal exports, stabilization is converted to by light modulation and switching signal
Pwm signal output, pwm signal passes through current rectifying and wave filtering circuit respectively, colour temperature adjusts circui and power-sensing circuit are realized and stablized
Function without fluctuation, DALI intelligent controls, adjustable color and power adjustable.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are please referred to,
A kind of LED power, including first switch 1, second switch 2, third switch 3, power-switching circuit 4, the first chip
5, the second chip 6, the first triode 7, transformer 8, current rectifying and wave filtering circuit 9, colour temperature adjusts circui 10 and power-sensing circuit 11；
The input of the input terminal of the first switch 1 and three-phase alternating current is connected, the output end of the first switch 1 with it is described
The input terminal of power-switching circuit 4 is connected, and the first switch 1 is used to input progress phase adjusted to three-phase alternating current and be converted to
Two-phase alternating current exports；
The output end of the power-switching circuit 4 is connected with the first chip 5 and the second chip 6 respectively, for intersecting two
Galvanic electricity input is converted to the DC power supply needed for the first chip 5 and the second chip 6；
The input terminal of second chip 6 is connected with the input of DALI signals, the output end and the first core of second chip 6
The first input end of piece 5 is connected, and the output end of first chip 5 is connected with the grid of the first triode 7, the one or three pole
The source electrode of pipe 7 is connected with the input terminal of power-sensing circuit 11, the input terminal of the drain electrode and transformer 8 of first triode 7
It is connected, first triode 7 is used to generate switching current signal according to the pwm signal that the first chip 5 generates, by switching current
Signal is transferred to power-sensing circuit 11 and transformer 8 respectively；
The first output end and second output terminal of the power-sensing circuit 11 the second input terminal with the first chip 5 respectively
It is connected with the input terminal of second switch 2, the output end of the second switch 2 is connected with the third input terminal of the first chip 5, described
Power-sensing circuit 11 is used to switching current signal being converted to current signal transfer to the first chip 5, and according to required
Output power size and the switching for controlling second switch 2；
The output end of the transformer 8 is connected with the input terminal of current rectifying and wave filtering circuit 9, the current rectifying and wave filtering circuit 9 it is defeated
Outlet is connected with the input terminal of third switch 3, and the output end of the third switch 3 is connected with colour temperature adjusts circui 10；The change
Depressor 8 is used to switching current signal being converted to direct voltage output to current rectifying and wave filtering circuit 9；The current rectifying and wave filtering circuit 9 is used
In the ripple current for the DC voltage for inhibiting input；
First chip 5 is used to the light modulation of input and switching signal being converted to stable pwm signal and export；
Second chip 6 is used to the DALI signals of input being converted to light modulation and switching signal exports.
As can be seen from the above description, the beneficial effects of the utility model are：It is opened by adjusted for three-phase phase first
Close becomes any one firewire and zero curve by three firewires of three-phase alternating current powers to power-switching circuit, is not required to distribution box three
Phase electricity is converted to two-phase electricity, realizes equilibrium between three phase network phase and is converted to two-phase alternating current, reduces user cost and installation
The DALI signals of input are converted to light modulation and switching signal by the second chip and exported by difficulty, and the first chip is by the tune of input
Light and switching signal are converted to stable pwm signal output, and pwm signal passes through current rectifying and wave filtering circuit, colour temperature adjusts circui respectively
It is realized with power-sensing circuit and stablizes the function without fluctuation, DALI intelligent controls, adjustable color and power adjustable, this practicality is new
Type is reliable and stable, at low cost and high efficiency.
Further, the first switch is phase change-over switch.
Seen from the above description, three firewires of three-phase alternating current are become by any one firewire by phase change-over switch
Power-switching circuit power supply is given with zero curve, distribution box three-phase electricity is not required to and is converted to two-phase electricity, realize between three phase network phase
Weighing apparatus is converted to two-phase alternating current, reduces user cost and installation difficulty.
Further, further include driving circuit for driving the first triode, the driving circuit include first resistor,
Second resistance, 3rd resistor and the first diode, one end of the first resistor are connected with the first chip, the first resistor
The other end is connected with the negative terminal of one end of second resistance and the first diode respectively, the other end of second resistance and with the one or three pole
The grid of pipe is connected, and the anode of the first diode is connected with one end of 3rd resistor, and the second resistance and the first diode are simultaneously
Connection, the other end of the 3rd resistor are connected with the source electrode of the first triode.
Seen from the above description, the driving circuit is for driving the first triode so that the first triode generates switch
Electric current.
Further, the power-sensing circuit includes the detection resistance of multi-channel parallel.
Seen from the above description, by the detection resistance of multi-channel parallel, the output of different capacity may be implemented.
Further, the current rectifying and wave filtering circuit includes the second diode, third diode, the four or two pole being sequentially connected
Pipe and the 5th diode, further include the 4th resistance, the 5th resistance, the 6th resistance, the first capacitance, the second capacitance and the two or three pole
Pipe, one end of first capacitance are connected with transformer, and the other end of first capacitance is connected with the second diode, and the five or two
One end of pole pipe is connected with one end of one end of the second capacitance and the 6th resistance respectively, the other end and transformation of second capacitance
Device is connected, and the other end of the 6th resistance is connected with the grid of the second triode, one end of the 6th resistance and the 4th electricity
One end of resistance is connected, and the other end of the 4th resistance is connected with one end of the 5th resistance, the other end of the 5th resistance and
The drain electrode of second triode is connected.
Seen from the above description, the current rectifying and wave filtering circuit is used to inhibit the ripple current of the DC voltage of input.
Further, the colour temperature adjusts circui includes multichannel different colours and the LED of parallel connection.
Seen from the above description, the output of different-colour may be implemented in multichannel different colours and the LED of parallel connection.
Fig. 1-Fig. 4 is please referred to, the embodiments of the present invention one are：
In the present embodiment, mark, a kind of LED power, including first switch SW1, second switch as shown in Fig. 2-Fig. 4
It is SW2, third switch SW3, power-switching circuit 4, the first chip U1, the second chip U2, the first triode Q2, transformer T1, whole
Flow filter circuit 9, colour temperature adjusts circui 10 and power-sensing circuit 11；
The input terminal of the first switch SW1 is connected with three-phase alternating current input, the output end of the first switch SW1
It is connected with the input terminal of the power-switching circuit 4, the first switch SW1 is phase change-over switch, the first switch SW1
Two-phase alternating current output is converted to for inputting progress phase adjusted to three-phase alternating current；
The output end of the power-switching circuit 4 is connected with the first chip U1 and the second chip U2 respectively, is used for two-phase
Alternating current input is converted to the DC power supply needed for the first chip U1 and the second chip U2；
The input terminal of the second chip U2 is connected with the input of DALI signals, the output end and first of the second chip U2
The first input end of chip U1 is connected, and the output end of the first chip U1 is connected with the grid of the first triode Q2, and described the
The source electrode of one triode Q2 is connected with the input terminal of power-sensing circuit 11, drain electrode and the transformer T1 of the first triode Q2
Input terminal be connected, the first triode Q2 is used to generate switching current signal according to the pwm signal that the first chip U1 is generated,
Switching current signal is transferred to power-sensing circuit 11 and transformer T1 respectively；
The input of DALI signals is produced after the protection circuit that R31 and ZNR5 is formed by the constant-current circuit that Q4 and Q5 is formed
After raw constant current signal, constant current signal is provided to optocoupler SIC2 by D14, the constant current signal is entered by optocoupler SIC2 by R12
Second chip U2 processing, the second chip U2 processing generate light modulation and switching signal, and light modulation and switching signal are sent out by the second chip U2
Go out, be transferred to the first chip U1, stable pwm signal the first triode of secondary control again is generated by the first chip U1 internal arithmetics
Q2, which is generated, stablizes output.
The first output end and second output terminal of the power-sensing circuit 11 are inputted with the second of the first chip U1 respectively
End is connected with the input terminal of second switch SW2, the third input terminal phase of the output end of the second switch SW2 and the first chip U1
Even, the power-sensing circuit 11 is used to switching current signal being converted to current signal transfer to the first chip U1, Yi Jigen
The switching of second switch SW2 is controlled according to required output power size；
The output end of the transformer T1 is connected with the input terminal of current rectifying and wave filtering circuit 9, the current rectifying and wave filtering circuit 9 it is defeated
Outlet is connected with the input terminal of third switch SW3, and the output end of the third switch SW3 is connected with colour temperature adjusts circui 10；Institute
Transformer T1 is stated for switching current signal to be converted to direct voltage output to current rectifying and wave filtering circuit 9；The rectifying and wave-filtering electricity
Road 9 is used to inhibit the ripple current of the DC voltage of input；
The first chip U1 is used to the light modulation of input and switching signal being converted to stable pwm signal and export；
The second chip U2 is used to the DALI signals of input being converted to light modulation and switching signal exports；
Further include the driving circuit for driving the first triode Q2, the driving circuit includes first resistor R25,
Two resistance R26,3rd resistor R27 and the first diode D22, one end of the first resistor R25 are connected with the first chip U1, institute
The other end for stating first resistor R25 is connected with the negative terminal of one end of second resistance R26 and the first diode D22 respectively, the second electricity
The grid of the other end and the first triode Q2 that hinder R26 is connected, one end of the anode and 3rd resistor R27 of the first diode D22
It is connected, the second resistance R26 and the first diode D22 are in parallel, the other end of the 3rd resistor R27 and the first triode Q2
Source electrode be connected；
Power-switching circuit 4 provides stable direct-current working volts, the first core by start-up resistor R4 to the first chip U1
Pwm signal is generated after piece U1 work, pwm signal passes through first resistor R25, second resistance R26,3rd resistor R27 and first
Diode D22 forms the driving circuit of the first triode Q2, and the first triode Q2, which starts to work, generates switching current, described to open
Powered-down stream flows through first via detection resistance R15 by Q2 and obtains current signal, and the current signal enters the first chip by R16
U1, the first chip U1 generate the stable output of the first triode of secondary control Q2 generations again of stable pwm signal by internal arithmetic, if
It needs to increase output power, then can be obtained after increasing output by adjusting the second tunnel detection resistance R17 of change-over switch SW2 connections
Current signal enter the first chip U1 by R16, the first chip U1 generates stable PWM signals again by internal arithmetic
It controls the first triode Q2 and generates and stablize output, if also needing to increase output power, can be connect by adjusting change-over switch SW2
Logical third road detection resistance R14 obtains increasing the current signal after output power, and the current signal enters first by R16
Chip U1, the first chip U1 by internal arithmetic generate stable pwm signal again the first triode of secondary control Q2 generations stablize it is defeated
Go out.
The power-sensing circuit includes the detection resistance of multi-channel parallel, in fig. 2, has three tunnel detection resistances, is respectively
R15, R14 and R17；
The current rectifying and wave filtering circuit includes the second diode D6, third diode D7, the 4th diode D8 being sequentially connected
Further include the 4th resistance R34, the 5th resistance R35, the 6th resistance R6, the first capacitance C5, the second capacitance with the 5th diode D9
C8 and the second triode Q3, one end of the first capacitance C5 are connected with transformer T1, the other end of the first capacitance C5 with
Second diode D6 is connected, one end of the 5th diode D9 one end phase with one end and the 6th resistance R6 of the second capacitance C8 respectively
Even, the other end of the second capacitance C8 is connected with transformer T1, the other end and the second triode Q3 of the 6th resistance R6
Grid be connected, one end of the 6th resistance R6 is connected with one end of the 4th resistance R34, the 4th resistance R34 it is another
End is connected with one end of the 5th resistance R35, and the other end of the 5th resistance R35 is connected with the drain electrode of the second triode Q3；
The colour temperature adjusts circui includes multichannel different colours and the LED of parallel connection, such as Fig. 3, and the utility model uses 3 tunnels
LED, respectively LED+, LEDY- and LEDW-.
In conclusion a kind of LED power provided by the utility model, it will by the first switch adjusted for three-phase phase
Three firewires of three-phase alternating current become any one firewire and zero curve and power to power-switching circuit, are not required to distribution box three-phase electricity
Two-phase electricity is converted to, equilibrium between three phase network phase is realized and is converted to two-phase alternating current, reduce user cost and installation difficulty,
The DALI signals of input are converted into light modulation by the second chip and switching signal exports, the first chip is by the light modulation of input and opens
OFF signal is converted to stable pwm signal output, and pwm signal passes through current rectifying and wave filtering circuit, colour temperature adjusts circui and power respectively
Detection circuit realizes that the function of stablizing without fluctuation, DALI intelligent controls, adjustable color and power adjustable, the utility model are stablized
Reliably, at low cost and high efficiency.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalents made based on the specification and figures of the utility model are applied directly or indirectly in relevant technology neck
Domain is equally included in the patent within the scope of the utility model.
Claims (6)
1. a kind of LED power, which is characterized in that including first switch, second switch, third switch, power-switching circuit, first
Chip, the second chip, the first triode, transformer, current rectifying and wave filtering circuit, colour temperature adjusts circui and power-sensing circuit；
The input terminal of the first switch is connected with three-phase alternating current input, and the output end of the first switch turns with the power supply
The input terminal for changing circuit is connected；
The output end of the power-switching circuit is connected with the first chip and the second chip respectively；
The input of the input terminal of second chip and DALI signals is connected, the output end of first chip and the first triode
Grid is connected, and the source electrode of first triode is connected with the input terminal of power-sensing circuit, the drain electrode of first triode
It is connected with the input terminal of transformer, first triode is used to generate switching current signal according to pwm signal, by switching current
Signal is transferred to power-sensing circuit and transformer respectively；
The first output end and second output terminal of the power-sensing circuit respectively with the second input terminal of the first chip and second
The input terminal of switch is connected, and the output end of the second switch is connected with the third input terminal of the first chip；
The output end of the transformer is connected with the input terminal of current rectifying and wave filtering circuit, the output end of the current rectifying and wave filtering circuit and
The input terminal of three switches is connected, and the output end of the third switch is connected with colour temperature adjusts circui；
The output end of second chip is connected with the first input end of the first chip.
2. a kind of LED power according to claim 1, which is characterized in that the first switch is phase change-over switch.
3. a kind of LED power according to claim 1, which is characterized in that further include the drive for driving the first triode
Dynamic circuit, the driving circuit include first resistor, second resistance, 3rd resistor and the first diode, the first resistor
One end is connected with the first chip, the other end of the first resistor negative terminal with one end of second resistance and the first diode respectively
It is connected, the grid of the other end of second resistance and the first triode is connected, the anode of the first diode and one end of 3rd resistor
It is connected, the second resistance and the first diodes in parallel, the other end of the 3rd resistor are connected with the source electrode of the first triode.
4. a kind of LED power according to claim 1, which is characterized in that the power-sensing circuit includes multi-channel parallel
Detection resistance.
5. a kind of LED power according to claim 1, which is characterized in that the current rectifying and wave filtering circuit includes being sequentially connected
The second diode, third diode, the 4th diode and the 5th diode, further include the 4th resistance, the 5th resistance, the 6th electricity
Resistance, the first capacitance, the second capacitance and the second triode, one end of first capacitance are connected with transformer, first capacitance
The other end be connected with the second diode, one end of the 5th diode one end with one end of the second capacitance and the 6th resistance respectively
It is connected, the other end of second capacitance is connected with transformer, the grid of the other end and the second triode of the 6th resistance
It is connected, one end of the 6th resistance is connected with one end of the 4th resistance, the other end of the 4th resistance and the 5th resistance
One end is connected, and the other end of the 5th resistance is connected with the drain electrode of the second triode.
6. a kind of LED power according to claim 1, which is characterized in that the colour temperature adjusts circui includes multichannel difference
Color and the LED of parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721790555.6U CN207706485U (en) | 2017-12-20 | 2017-12-20 | A kind of LED power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721790555.6U CN207706485U (en) | 2017-12-20 | 2017-12-20 | A kind of LED power |
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| Publication Number | Publication Date |
|---|---|
| CN207706485U true CN207706485U (en) | 2018-08-07 |
Family
ID=63027246
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721790555.6U Active CN207706485U (en) | 2017-12-20 | 2017-12-20 | A kind of LED power |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107896403A (en) * | 2017-12-20 | 2018-04-10 | 广东恒润光电有限公司 | A kind of LED power |
| CN114173452A (en) * | 2021-11-03 | 2022-03-11 | 广东艾迪明电子有限公司 | Compound dimming control system |
-
2017
- 2017-12-20 CN CN201721790555.6U patent/CN207706485U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107896403A (en) * | 2017-12-20 | 2018-04-10 | 广东恒润光电有限公司 | A kind of LED power |
| CN107896403B (en) * | 2017-12-20 | 2024-03-12 | 广东恒润光电有限公司 | LED power supply |
| CN114173452A (en) * | 2021-11-03 | 2022-03-11 | 广东艾迪明电子有限公司 | Compound dimming control system |
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