CN108243534A - A kind of the automatic of LED lamp bead of more BIN loads in mixture method - Google Patents
A kind of the automatic of LED lamp bead of more BIN loads in mixture method Download PDFInfo
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- CN108243534A CN108243534A CN201611224626.6A CN201611224626A CN108243534A CN 108243534 A CN108243534 A CN 108243534A CN 201611224626 A CN201611224626 A CN 201611224626A CN 108243534 A CN108243534 A CN 108243534A
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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
- H05B44/00—Circuit arrangements for operating electroluminescent light sources
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Automatic the present invention relates to a kind of LED lamp bead of more BIN loads in mixture method, including three sections of selected on-off circuits, all the way rectification circuit, two alignment detection circuits, all the way constant-current control circuit and one group of LED light, alternating current connects rectification circuit by three sections of selected on-off circuits, constant-current control circuit is output to after rectification circuit AC-DC conversion, constant-current control circuit is exported powers to LED lamps, three sections of selected on-off circuit output termination two-way detection circuits, detection circuit output connect constant current chip current controling end in constant-current control circuit.By increasing detection circuit, the current controling end resistance value of adjustment constant current chip U1 a, it is only necessary to major loop, a paths of LEDs lamp, it is possible to complete the work of 3 sections of dimming LED (Light Emitting Diode) lamps, simplify circuit, reduce cost.This circuit also can be widely used in isolated power supply and non-isolated power supply, in primary control constant-current circuit.
Description
Technical field
The present invention relates to a kind of LED lighting sources technology, the automatic of more particularly to a kind of LED lamp bead of more BIN loads in mixture
Method.
Background technology
Existing three-stage dimming white heat modulated structure is shown in attached drawing 1, has used two segment filaments, low watt of filament 1 and in watt filament 3, one
Common segment 2, three input lines, using mechanical switch, different power-up sequences realizes different combinations, and reaches 3 kinds of light and lead to
2 wiring diagram of attached drawing is shown in the function of amount, explanation.LED lamps will substitute such incandescent lamp, and inside just needs to reach this with two power supplys
Kind function, circuit is complicated, of high cost, and occupancy lamp body space is larger, is unfavorable for assembling, is unfavorable for radiating.
Invention content
The problem of the present invention be directed to the controls of existing three-stage dimming incandescent lamp to need two-way power supply, and circuit is complicated, proposes one
The automatic of the LED lamp bead of the more BIN of kind loads in mixture method, simplifies circuit, reduces cost.
The technical scheme is that：A kind of the automatic of LED lamp bead of more BIN loads in mixture method, including three sections of selecting switch
Circuit, all the way rectification circuit, all the way two alignment detection circuits, constant-current control circuit and one group of LED lamp, alternating current is by three sections of choosings
It selects switching circuit and connects rectification circuit, constant-current control circuit, constant-current control circuit output are output to after rectification circuit AC-DC conversion
It powers to LED lamps, three sections of selected on-off circuit output termination two-way detection circuits, detection circuit output connects constant-current control circuit
Middle constant current chip current controling end.
Three sections of selected on-off circuits export two-way alternating current, wherein two sections are respectively turned on corresponding output two-way wherein
All the way, third section is is also turned on output two-way.It is defeated that two alignment detection circuit connects three sections of selected on-off circuit two-way respectively
Outlet, diode, sampling resistor, MOS pipes and feedback resistance are included per alignment detection circuit, and three sections of selected on-off circuit outputs are handed over
Diode and sampling resistor ground connection, sampling resistor of the galvanic electricity by the series connection of corresponding detection circuit power on force feed MOS management and control systems
End, the conducting of MOS pipes, feedback resistance access constant current chip current controling end.
The beneficial effects of the present invention are：The automatic of the LED lamp bead of the more BIN of the present invention is loaded in mixture method and is examined using exchange
It surveys, primary control mode, realizes three-stage dimming function with a set of main circuit, simplify circuit, reduce element composition, reduce into
This, reduces size of power.Isolated power supply and non-isolated power supply are can be widely used in, in primary control constant-current circuit.
Description of the drawings
Fig. 1 is existing three-stage dimming incandescent lamp structure diagram；
Fig. 2 is existing three-stage dimming incandescent lamp wiring diagram；
Fig. 3 is existing the first luminous flux of three-stage dimming incandescent lamp operating diagram；
Fig. 4 is existing the second luminous flux of three-stage dimming incandescent lamp operating diagram；
Fig. 5 is existing three-stage dimming incandescent lamp third luminous flux operating diagram；
Fig. 6 is that the automatic of the LED lamp bead of existing more BIN loads in mixture method and figure；
Fig. 7 is that the automatic of the LED lamp bead of the more BIN of the present invention loads in mixture method and figure.
Specific embodiment
If the traditional three-stage dimming incandescent lamps of Fig. 3-5 are in three kinds of luminous flux schematic diagrames, Fig. 6 is existing three-stage dimming LED lamps
The circuit diagram of control, two-way constant-current control circuit control two paths of LED lamp, principle and conventional incandescent one are realized with two-way power supply
Sample, by switching selected required luminous flux, two segment filaments originally add two paths of LED lamp to replace with two-way constant-current control circuit.
The present invention is worked using a set of main circuit, and two signal deteching circuits, two-way detection signal point are set in exchange side
Corresponding operating circuit is not controlled, and primary in power supply realizes the control of LED output currents, and it is non-that circuit can be applicable to decompression constant current
Isolation circuit is also applicable in flyback isolation constant-current circuit and the non-isolated constant-current circuit of boosting；Circuit current constant control in primary side,
With current sense resistor, detection resistance feeds back to control IC in a manner of voltage signal, to realize change output current.
Circuit has 2 key points, and first, detect signal in the exchange of 2 tunnels.Second, changed using the signal detected
The resistance value of circuit detection resistance.
The automatic of the LED lamp bead of more BIN loads in mixture method and figure as shown in Fig. 7, and circuit front-end is selecting switch, as L1 and
When N both ends power on, diode D1 and three resistance R1, R2, R3 partial pressures that the voltage of power end is concatenated, in R1 and
Detectable voltage signals between R2 are transferred to the g poles of MOS pipes Q1, MOS pipes Q1 conductings, and R15 is switched to GND.Simultaneously
Power supply is sent into main circuit through bridge heap BD1, and U1 starts to work, and the current controling end CS feet of U1 are grounded by resistance R15, defeated
Go out electric current to be determined by R15 resistances.This LED lamp is worked with the constant current of I1=UCS ÷ RCS1, and R CS1 are R15 and R17
Resistance value in parallel, this is first segment brightness.
When L2 and N both ends power on, L1 and N are disconnected, and MOS pipes Q1 is not turned on, and the voltage of power end is through string
The diode D2 of connection and three resistance R4, R5, R6 partial pressures, the detectable voltage signals between R4 and R5 are transferred to MOS pipes
The g poles of Q2, MOS pipes Q2 conductings, R16 are switched to GND.Power supply is sent into main circuit through bridge heap BD2 simultaneously, and U1 starts work
Make, the current controling end CS feet of U1 are grounded by resistance R16, and output current is determined by R16 resistances.This LED lamp with
The constant current work of I2=UCS ÷ RCS2, R CS2 are R16 resistance values in parallel with R17, this is LED lamp second segment brightness.
As L1 and N, L2 is also turned on power supply with N two-way, then defeated as previously mentioned, R15, R16 access circuit simultaneously
Go out electric current for I3=UCS ÷ RCS3, RCS3 R15, R16 resistance values in parallel with R17, this is LED lamp third section brightness.
In this way by increasing detection circuit, the current controling end resistance value of adjustment constant current chip U1, it is only necessary to which one is led back
Road, a paths of LEDs lamp, it is possible to complete the work of 3 sections of dimming LED (Light Emitting Diode) lamps, simplify circuit, reduce cost.
The preferred embodiment of the present invention is only intended to help to illustrate the present invention.Preferred embodiment is all there is no detailed descriptionthe
Details does not limit the invention to the specific embodiments described.Obviously, according to the content of this specification, can make very much
Modifications and variations.This specification is chosen and specifically describes these embodiments, is in order to preferably explain the principle of the present invention and reality
Border is applied, so as to which skilled artisan be enable to utilize the present invention well.The present invention only by claims and its
The limitation of four corner and equivalent.Disclosed above is only several specific embodiments of the application, but the application not limits to
In this, the changes that any person skilled in the art can think of should be all fallen in the protection domain of the application.
Claims (3)
1. a kind of the automatic of LED lamp bead of more BIN loads in mixture method, which is characterized in that including three sections of selected on-off circuits, whole all the way
Current circuit, all the way two alignment detection circuits, constant-current control circuit and one group of LED lamp, alternating current connect by three sections of selected on-off circuits
Rectification circuit is output to constant-current control circuit after rectification circuit AC-DC conversion, and constant-current control circuit, which exports, gives the power supply of LED lamps,
Three sections of selected on-off circuit output termination two-way detection circuits, detection circuit output connect constant current chip electric current in constant-current control circuit
Control terminal；Circuit front-end is selecting switch, when L1 and N both ends power on, diode that the voltage of power end is concatenated
D1 and three resistance R1, R2, R3 partial pressure, the detectable voltage signals between R1 and R2 are transferred to the g of MOS pipes Q1
Pole, MOS pipes Q1 conductings, R15 are switched to GND；Power supply is sent into main circuit through bridge heap BD1 simultaneously, and U1 starts to work, U1
Current controling end CS feet be grounded by resistance R15, output current is determined by R15 resistances, this LED lamp is with I1=UCS
The constant current work of ÷ RCS1, RCS1 are R15 resistance values in parallel with R17, this is first segment brightness；As three sections of selecting switch L2
When powering on N both ends, L1 and N are disconnected, and MOS pipes Q1 is not turned on, the diode D2 that the voltage of power end is concatenated
With three series resistance R4, R5, R6 partial pressures, the detectable voltage signals between R4 and R5 are transferred to the g of MOS pipes Q2
Pole, MOS pipes Q2 conductings, R16 are switched to GND；Power supply is sent into main circuit through bridge heap BD2 simultaneously, and constant current chip U1 starts
Work, the current controling end CS feet of constant current chip U1 are grounded by resistance R16, and output current is determined by R16 resistances,
This LED lamp is worked with the constant current of I2=UCS ÷ RCS2, and R CS2 are R16 resistance values in parallel with R17, this is LED lamps second
Duan Liangdu；When three sections of selecting switch L1 and N, L2 are also turned on power supply with N two-way, then as previously mentioned, R15, R16 simultaneously
Circuit is accessed, output current is I3=UCS ÷ RCS3, RCS3 R15, R16 resistance values in parallel with R17, this is LED lamp third sections
Brightness.
2. the automatic of the LED lamp bead of more BIN loads in mixture method and, which is characterized in that three sections of choosings according to claim 1
Select switching circuit output two-way alternating current, wherein two sections be respectively turned on it is corresponding output two-way it is therein all the way, third Duan Weitong
When connect output two-way.
3. the automatic of the LED lamp bead of more BIN loads in mixture method and, which is characterized in that the two-way inspection according to claim 2
Slowdown monitoring circuit connects three sections of selected on-off circuit two-way output terminals respectively, and diode, sampling resistor, MOS pipes are included per alignment detection circuit
And feedback resistance, three sections of selected on-off circuit output alternating currents pass through the diode and sampling resistor of corresponding detection circuit series connection
Ground connection, sampling resistor power on force feed MOS pipe control terminals, the conducting of MOS pipes, feedback resistance access constant current chip current controling end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611224626.6A CN108243534A (en) | 2016-12-27 | 2016-12-27 | A kind of the automatic of LED lamp bead of more BIN loads in mixture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611224626.6A CN108243534A (en) | 2016-12-27 | 2016-12-27 | A kind of the automatic of LED lamp bead of more BIN loads in mixture method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108243534A true CN108243534A (en) | 2018-07-03 |
Family
ID=62702566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611224626.6A Pending CN108243534A (en) | 2016-12-27 | 2016-12-27 | A kind of the automatic of LED lamp bead of more BIN loads in mixture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108243534A (en) |
-
2016
- 2016-12-27 CN CN201611224626.6A patent/CN108243534A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180703 |