CN103026798A - Dimmable LED lamp - Google Patents
Dimmable LED lamp Download PDFInfo
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- CN103026798A CN103026798A CN2011800353760A CN201180035376A CN103026798A CN 103026798 A CN103026798 A CN 103026798A CN 2011800353760 A CN2011800353760 A CN 2011800353760A CN 201180035376 A CN201180035376 A CN 201180035376A CN 103026798 A CN103026798 A CN 103026798A
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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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- 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]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/385—Switched mode power supply [SMPS] using flyback topology
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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]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/39—Circuits containing inverter bridges
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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]
- H05B45/30—Driver circuits
- H05B45/355—Power factor correction [PFC]; Reactive power compensation
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to a method for dimming luminous elements operated by means of an operating device, in particular a converter for at least one LED and/or OLED. The method comprises the following steps: phase control of a power supply of the operating device, feeding the power supply having phase control to an energy store, in particular a passive valley fill circuit, i.e. a passive power factor correcting circuit, of the operating device, evaluating the output voltage of the energy store, in particular the variance of the output voltage of the energy store caused by the phase control, in order to independently set the parameters determining the lighting power of the luminous element for operating an operating circuit preferably connected downstream thereof, and conducting the output voltage of the energy store to the power supply of the luminous element, preferably by means of the operating circuit.
Description
The present invention relates to especially the method for LED lamp such as LED and/or OLED being carried out light modulation by the lighting means drive unit.At this, the invention particularly relates to so-called remodeling LED lamp, it is designed for and substitutes traditional incandescent lamp bulb or Halogen lamp LED and have corresponding mechanical splice and electric connection for this reason.
It is because its favourable performance mainly is its high energy efficiency and its longevity for illumination that people require LED and/or OLED more and more.To this, it is favourable using the scheme of so-called remodeling LED lamp, can continue to use existing electronic mounting facility such as incandescent lamp holder, cable distribution and switch at this.It is more and more common to substitute initial lighting means with remodeling LED lamp.Can obtain the LED lamp of retrofiting there from different manufacturers, most incandescent lamp model based on E14 or E27 lamp socket.
But the following problem of general appearance this moment, the size of remodeling LED lamp is determined by lamp socket, but lamp socket is to design for traditional incandescent lamp bulb at first.And remodeling LED lamp also needs electronic-controlled installation and heat dissipation element except described one or more led chips or OLED chip.Therefore, keep by the size of lamp socket defined and the reliable LED lamp that plays a role is provided simultaneously is a problem.
But, obtain following advantage because using additional electronic installation simultaneously, can realize in principle the regulating power of lighting device.To this, the adjustable photosensitiveness of desired illumination device especially.But, because require them only to drive by existing electronic mounting facility for remodeling LED lamp, so controllability is restricted.The so far light modulation of the lighting device of family's common type is undertaken by so-called dimmer switch, and dimmer switch can be the key switch of tunable optical, or rotary switch.The user can so control by dimmer switch the light modulation value of lighting device,, especially adjusts a light modulation value by phase control device (Phasenanschnitts-oder Phasenabschnittssteuerung) that is.Therefore, can in traditional direct-connected incandescent lamp situation, regulate output power (directly light modulation).If but use LED with replacing, then as from knowing the prior art, the drive circuit that needs very complex and occupation of land, drive circuit has the branch in parallel with power supply, independent measurement and analyze phase control in this branch, and its signal is provided for a control circuit, and this control circuit is controlled the work operation (indirectly light modulation) of LED subsequently.
Therefore, the present invention is based on following task, provide a kind of for the lighting means drive unit, in particular for the light-dimming method of the converter of at least one LED and/or OLED, and a kind of for this reason drive unit of design is provided, wherein, light modulation can advantageously be undertaken by phase control device.
This task will be finished by the feature of independent claims.Dependent claims improves center of the present invention conception in particularly advantageous mode.
The present invention relates to a kind of light-dimming method of lighting means, this lighting means utilizes drive unit to drive.This drive unit is in particular for the converter of at least one LED and/or OLED.At this, the method may further comprise the steps: the supply power voltage to this drive unit carries out phase control.At first will take the supply power voltage of phase control to supply with rectifier GR, and after rectification, offer accumulator ES.Accumulator ES is the passive paddy circuit PVF that fills out of this drive unit especially.Analyze the fluctuation and/or the size that are caused by phase control of this accumulator ES output voltage.In order to regulate relatively running parameter drive circuit (preferably being located at the downstream), that stipulate this lighting means luminous power with this output voltage.At last, preferably by this drive circuit the output voltage of this accumulator ES is continued on to the power supply of this lighting means.
The parameter of regulation power this moment can be the clock of switch, especially to adjustment and/or the frequency of duty ratio.
This drive circuit preferably has anti exciting converter FBC, half bridge resonant transformer and/or pwm circuit.
Light modulation is preferably undertaken by Modulation and Amplitude Modulation and/or pulse-width modulation (PWM) this moment.
The accumulator output voltage can be fed to this drive circuit.
Accumulator ES can have energy storage capacitor, single-stage or multistage passive paddy circuit PVF and/or the charge pump circuit (charge pump) filled out.But also can adopt other circuit as accumulator ES, for example as booster converter etc.
The preferred electric current that flows through at least one LED and/or OLED of measuring is actual value as feedback signal.
Analysis to accumulator ES output voltage can directly and/or indirectly be carried out.This means, can bring in measurement at accumulator output and/or drive circuit output to the analysis of accumulator output voltage.
The light modulation predetermined value of preferably being regulated by dimmer switch by the user preferably can be adjusted by phase control.
The invention still further relates to a kind of drive unit, this drive unit is used for driving lighting means especially at least one LED and/or OLED.At this moment, by the voltage controlled by phase controlled light modulator preferably alternating voltage drive.This drive unit has at least one rectifier GR and the especially passive paddy circuit PVF that fills out of accumulator ES at this, and it is preferred for rectification and level and smooth this alternating voltage.This drive unit also has the drive circuit that preferably is connected in after the accumulator ES, is used for driving this lighting means with the light modulation value that is limited by a parameter.At last, this drive unit also has control circuit STS, is used for analyzing accumulator ES output voltage.In addition, this control circuit STS is designed for the running parameter of determining this drive circuit.Carry out according to accumulator ES's and/or drive circuit output voltage definite this moment of parameter.
Here, this drive circuit preferably has anti exciting converter FBC, half bridge resonant transformer and/or pwm circuit.
Accumulator ES preferably includes energy storage capacitor, single-stage or multistage passive paddy circuit PVF and/or the charge pump (charge pump) filled out.
This drive unit also preferred design is used for carrying out above-mentioned method.
In addition, the present invention relates to LED lamp and the LED lamp of especially retrofiting.It has lighting means and especially at least one LED and/or OLED.This LED lamp also has aforesaid drive unit for lighting means.
At last, the invention still further relates to the LED lighting device of tunable optical.It has at least one aforesaid LED lamp.In addition, it also has phase controlled light modulator (Phasenanschnitts-oder Phasenabschnittsdimmer).
Now, in conjunction with following performance, advantage and feature of informing other to the clearly description of embodiment and with reference to the view of accompanying drawing to those skilled in the art.
Fig. 1 illustrates the schematic diagram according to the first embodiment of the LED lighting device of tunable optical of the present invention,
Fig. 2 illustrates the schematic diagram according to the second embodiment of the LED lighting device of tunable optical of the present invention,
Fig. 3 illustrates the schematic diagram of the first embodiment of the circuit structure of drive unit of the present invention,
Fig. 4 illustrates the schematic diagram of the second embodiment of the circuit structure of drive unit of the present invention,
Fig. 5 illustrates the schematic diagram according to the 3rd embodiment of the LED lighting device of tunable optical of the present invention, and
Fig. 6 illustrates the schematic diagram according to another embodiment of the LED lighting device of tunable optical of the present invention.
Fig. 1 has schematically illustrated the LED lighting device according to tunable optical of the present invention.AC supply voltage for example 220V alternating voltage is supplied to phase-control circuit, such as TRIAC (Triac).TRIAC links to each other with user interface U/I, and user interface for example can be the key switch of rotary light adjustment switch or tunable optical.Thereby the user can pass through user interface (switch, button, slide block ...) comes regulating power source voltage by TRIAC phase control now.At first the corresponding alternating voltage of phase control of having taked is supplied with rectifier GR, this rectifier carries out rectification to the alternating voltage that has alternately been carried out phase control, provide it to subsequently so-called passive paddy circuit (or being also referred to as passive valley fill circuit) PVF that fills out that is located at the downstream, it is the example of accumulator ES.
It carries out harmonic (the additional rectifier of being located at therebetween can be set for this reason at this), and corresponding direct voltage is flowed to drive circuit, such as anti exciting converter FBC.Also can be used as drive circuit and in conjunction with anti exciting converter other example is described, but also can adopt picture by abundant disclosed other converter of prior art institute.The anti exciting converter FBC that uses as drive circuit in this example is according to the direct voltage of adjusting primary side for the running parameter of its setting, play the effect of DC/DC converter, and the direct voltage that adjusts is supplied to one or more LED and/or OLED.At this, control circuit STS is identified for the running parameter of this drive circuit.Carry out according to accumulator ES's and/or drive circuit output voltage definite this moment of running parameter.In addition, as another reference, can measure the LED electric current.
Central point of the present invention is, and phase control signal (that is, and the supply voltage after the corresponding modulation, this supply voltage is corresponding to the ideal value of being scheduled to by the user) after through rectifier GR rectification, be supplied to the passive paddy circuit PVF that fills out.The present invention has found that the passive output voltage of filling out paddy circuit PVF embodies phase control.Thereby, in other words indirectly (namely for example at the drive circuit output) or directly at the passive measurement of output end output voltage of filling out paddy circuit PVF, in order to infer that thus the user is by the desired light modulation value of phase control.In other words, this output voltage is converted into a kind of light modulation predetermined value by control circuit STS, thereby in LED the light modulation predetermined value in the control circuit STS is converted to the power determination parameter subsequently.The passive output voltage of filling out paddy circuit PVF is a kind of bus voltage.
If this passive output voltage of filling out paddy circuit PVF is supplied to anti exciting converter FBC, then can also thereby with supply voltage potential isolation ground carry out the analysis of bus voltage in the primary side of anti exciting converter FBC as shown in Figure 1.When anti exciting converter is in cut-off state (when for example output rectifier diode (the diode D1 among Fig. 6) when being in cut-off state), can be inferred by the secondary-side voltage of anti exciting converter the input terminal voltage of anti exciting converter FBC, and then infer the passive output voltage of filling out paddy circuit PVF.In Fig. 6, when armature winding 2 excitation, for example measure secondary voltage at secondary winding 3.At this moment, have opposite current potential at secondary winding 3, this opposite current potential makes diode D2 conducting.In order to give the LED light modulation, not only can carry out the amplitude light modulation, and can carry out the combination of pulse-width modulation (PWM) light modulation or dual mode.If as in this preferred implementation, carrying out the LED light modulation by the amplitude light modulation, then when using anti exciting converter FBC, preferably so conversion is filled out the light modulation predetermined value that paddy circuit PVF bus voltage obtains by indirect analysis or Direct Analysis are passive, that is, the duty ratio of the corresponding adjusting anti exciting converter FBC ratio of namely working.LED(as mentioned above, this LED also can be the LED section with one or more LED and/or OLED) luminous power control thereby basically realize by following steps:
-pre-determining ideal value by phase controlled light modulator, this ideal value is set by dimmer switch by the user,
-analyze this ideal value by the passive output voltage of filling out paddy circuit PVF of direct or indirect analysis, preferably utilize control circuit STS, its can be integrated circuit for example as the combination of ASIC, microcontroller, compound circuit or these circuit,
-preferred additional LED the electric current that flows through LED of measuring, it is used as the actual value that reference value is current existing light modulation value, and
The work ratio of-use anti exciting converter FBC is that duty ratio is as the control parameter.
According to the present invention, the advantage of the lighting device of shown tunable optical or corresponding method is that the occupation of land demand that is used for the tunable optical drive circuit type of LED section is no more than the minor structure size, for example the minor structure size of E14 candle lamp bulb.
Following result particularly advantageously appears in this moment, and for the passive paddy circuit PVF that fills out, a plurality of series capacitors only charge with half of supply voltage amplitude respectively, and for this reason, the breakdown strength of capacitor can design littlely.Therefore, capacitor takes up an area that demand is corresponding to be reduced.When discharge, the parallel circuits that this is passive fills out two capacitors of paddy circuit PVF acts on bringing into play, thereby whole capacity is available subsequently.
In other words, on the whole, the passive paddy circuit PVF that fills out among Fig. 1 is a kind of electron stored energy device ES, and it for example has any type of capacitor circuit.Corresponding therewith, can expect that also the accumulator circuit of other form replaces the passive paddy circuit PVF that fills out.In the case, especially expect with the rectifier bridge of being located at the upstream that is provided with energy storage capacitor in the downstream.Also can use the multistage passive paddy circuit PVF that fills out.In addition, also can adopt single-stage or multiple-stage charge pump (charge pump sees that Fig. 4 or active control type circuit of power factor correction are for example as booster converter).Also can expect at last, adopt the combination that is consisted of by described circuit, especially by charge pump with passively fill out the combination that paddy circuit PVF consists of.
As mentioned above, the amplitude light modulation of LED is preferably especially undertaken by so-called anti exciting converter FBC.In other words, utilize the switch clock frequency of according to the present invention ground adjusting anti exciting converter FBC to come adjusting amplitude according to the light modulation ideal value of being set up by control circuit STS this moment.Inspection (whether namely check described light modulation ideal value is also correctly changed) can be undertaken by the LED electric current of measuring as actual value.But now alternative or addedly expect, carry out pulse-width modulation to realize the LED light modulation.
Fig. 2 illustrates a kind of modification of the lighting device of Fig. 1., also be provided with another circuit unit in drive circuit FBC downstream here, it can allow the electric current of regulation flow through the LED section based on the dc voltage of supplying.The latter for example is pwm circuit.Now, can actual light modulation value be adjusted to detected predetermined ideal value by the clock frequency of adjusting pwm circuit.Perhaps, it will also be appreciated that compound adjustment by drive circuit (amplitude light modulation) and pwm circuit.
In other words, except similar amplitude light modulation according to the present invention, also can realize light modulation by general LED pulse-width modulation in 100Hz～1kHz scope.Also can expect so realizing the PWM modulation, that is, according to the interval of 100Hz this LED be connected one period variable duration now.Certainly, will pay close attention to potential shortcoming when PWM modulates, the visual effect as flicker etc. may occur, thereby the time period that all LED are turned off should be not long, that is, frequency in other words PWM light modulating frequency should be too not low yet.
Fig. 3 schematically illustrates the circuit structure of the drive unit in the first execution mode.According to the present invention, here, it is the part of driving control device that phase control device (being the TRIAC of Fig. 1) is not necessarily leaveed no choice but.This is especially favourable in the following cases: can continue to use cable distribution and lamp socket in the existing electronic mounting facility that has with the dimmer switch of phase control device, and can only use according to remodeling LED lamp of the present invention, this remodeling LED light fixture has drive unit of the present invention and corresponding lighting means.
This drive unit and Fig. 1 have rectifier GR, accumulator ES or harmonic filter PVF (the passive paddy circuit of filling out), drive circuit FBC (anti exciting converter) and control circuit STS, integrated circuit relatively basically for example as ASIC or microcontroller.This execution mode is based on " the so far described active power factor correction that utilizes charge pump or the anti exciting converter FBC " combination with " based on the so-called passive passive power factor correcting circuit of filling out paddy (PVF) principle ".This PVF circuit be a kind of can the low-cost feasible program that realizes, it also is provided for improving power factor (for example to greater than 95% value) and will describes its general principle now.
In this PVF circuit, two charging capacitor C11 of harmonic filter PVF (the passive paddy circuit of filling out) and C12 are in the zone of maximum mains voltage, in series charged by the series circuit at " the rectifier diode D12 and before establish resistance R " of harmonic filter PVF branch arm, supposed that exactly the capacity of capacitor C11 and C12 has identical value (half that charges to respectively the input supply voltage peak value deduct the threshold voltage of two rectifier diodes being located at the networking rectifier AC/DC (Fig. 4 is not shown) before the harmonic filter and the threshold voltage of diode D12) this moment.Relevant therewith, in the charging stage of two charging capacitor C11 and C12, resistor bridge R is for the interference spike of the mobile charging current IBr of the branch arm that is limited in harmonic filter PVF.
Crossing in the null range (minimum power source voltage) of supply voltage, these two charging capacitor C11 and C12 are by rectifier diode D11 or D13 parallel discharge, and provide the output current Ira relevant with load simultaneously, until soaring to input supply voltage U again in the next charging stage process of the voltage after the rectification on the power rectifier AC/DC output at capacitor C11 and C12 always
NetzPeak value
Half.The discharge regime duration of two capacitor C11 and C12 can be approximately equal to 37% of the whole duration in charge/discharge cycle this moment, follows by the afterflow stage.
When reaching input supply voltage U
NetzPeak value Netz the time, begin again a new charging stage.The charging current I that adopts
BrSize and duration be the total electrical charge Q that in discharge regime, is discharged by capacitor C11 and C12 at this moment
GesFunction with resistor bridge R size in the charging circuit.
Establish LC low pass filter TPF before in the input circuit (Fig. 4 is not shown) that is formed by the filtering capacitor in parallel with power supply and choke for the high fdrequency component of filter out power electric current.In addition, cause input current I
NetzLevel and smooth.
Output at harmonic filter PVF has connected drive circuit, and it preferably has anti exciting converter FBC.It is controlled by control circuit STS, and output voltage this drive circuit and/or this accumulator ES is measured and analyzed to this control circuit in the manner described above, as light modulation predetermined ideal value.The LED section can be connected to the drive circuit output, wherein can also access betwixt controlled pwm circuit.For the correct driving of LED, load circuit can also have picture by abundant disclosed other circuit element of prior art institute.
Fig. 4 illustrates the second execution mode of drive unit of the present invention,, has used pfc circuit (power factor correction) as accumulator ES here, is charge pump circuit in the case.Initiatively pfc circuit preferably has the power rectifier AC/DC (Fig. 4 is not shown) with the form realization of rectifier full-bridge or multichannel rectifier, is used for the alternating voltage that is provided by power supply network is carried out rectification, so that the first input voltage UE through rectification to be provided; This active pfc circuit also has the harmonic filter that is supplied with UE, this harmonic filter is to be made of two rectifier diodes 14, series circuit and a pump electric capacity 12 of 11, wherein, the forward setting of the pulse direct current that these two rectifier diodes 14,11 provide along power rectifier AC/DC, this pump electric capacity 12 are connected on the intermediate point between these two diodes and as charge pump.The rectifier diode 14 of this harmonic filter can be the part of power rectifier AC/DC at this moment simultaneously.This charge pump is by transformer 1 and anti exciting converter FBC magnetic coupling.This FBC has transformer 1 and switch 4.This switch can be controlled as described above by the output voltage U A of control unit 5 according to the voltage U l that detects and/or anti exciting converter FBC this moment.This harmonic filter is powered to commutation condenser 7, the voltage U 1 after the anti exciting converter FBC that establishes after it is given provides smoothly.
Subsequently, also to summarize the process of the inventive method., in first step S1, carry out the phase control of AC supply voltage here, preferably manually actuated by the user.Certainly also can expect that such phase control is finished by external system such as luminance sensor system this moment.Subsequently, in step S2, carry out by the harmonic of the AC supply voltage of phase control and AC-DC, preferably utilize electron stored energy device ES such as the passive paddy circuit PVF that fills out.In step S4, this output voltage by the DC/DC converter for example as anti exciting converter FBC according to according to the determined parameter change of the present invention.Now, in step S3 and step S5, can carry out voltage measurement, wherein, in step S3, carry out the passive paddy circuit PVF output voltage of filling out and measure, and in step S5, carry out the measurement of anti exciting converter FBC output voltage.Now, the measurement that can optionally to finish actual light modulation value in step S6 be actual value.To this, especially the LED electric current is measured in suggestion.But or also can carry out other method for example as voltage measurement or illumination measurement by sensor technology.Also can expect, check by a preferred fixed question blank, perhaps check by the relative variation of tested voltage (S3 and/or S5).In other words, when in step S3 and/or S5, finished now passive measurement of filling out paddy circuit PVF's and/or anti exciting converter FBC's output voltage and thereby with reference to the ideal value that in step S1, shows in the phase control predetermined, in AC supply voltage and also additionally in step S6, having measured after current illumination actual value is actual light modulation value, the parameter that can so adjust now anti exciting converter FBC in step S7 is the clock frequency, so that current actual value is as far as possible corresponding to ideal value.Certainly, especially step S3-S6 repeat especially favourable to this so that actual value and ideal value are suitable.
Fig. 6 illustrates another execution mode of lighting device of the present invention.Between rectifier GR and PVF circuit, be provided with so-called " bleed circuit " (leadage circuit) here.The bleed circuit shows as basic load for phase controlled light modulator, it can be switched on according to for example input voltage (for example as in crossing null range) or load energy consumption.
Also can pass through method of switching (double-click method) and realize the brightness adjustment control mode of alternative.By (light modulation) switch/controller function (double-click) of certain order, can directly select a predetermined light modulation value (for example 30% luminous power).At this moment, the temporary transient disconnection of supply voltage is to find by the temporary transient interruption of anti exciting converter FBC primary side clock pulse by primary side monitoring (seeing Fig. 6), and this is because off voltage V
RAILCause driver 5 disabled (Fig. 6).If determined in a long time not have the clock pulse of anti exciting converter FBC, then this is considered to power supply and disconnects, other then be considered to (double-click) switching process.Thereby under simple scenario, between two brightness values, switch.But, by the switching process of this or another regulation, for example also can select a pattern, in this pattern, lighten automatically and dim.Subsequently, determine the light modulation value by a new switching process.
Anti exciting converter FBC is that the example as the potential isolation drive circuit of clock control proposes in this article.But should be appreciated that, also can use other circuit with replacing, for example as forward converter (for example: homophase forward converter, Push-pull Forward Converter ...) or (isolation) half-bridge converter.
Claims (16)
1. light-dimming method that utilizes the lighting means that drive unit drives, described drive unit is in particular for the converter of at least one LED and/or OLED, and described light-dimming method may further comprise the steps:
-supply power voltage of this drive unit is carried out phase control,
-will take the supply power voltage of phase control to supply with the accumulator of this drive unit, the especially passive paddy circuit of filling out is passive power factor correcting circuit,
-analyze the output voltage of this accumulator, the fluctuation of the output voltage of this accumulator of especially being caused by phase control, in order to regulate running parameter drive circuit, that stipulate this lighting means luminous power of preferably being located at the downstream associatedly, and
-preferably by this drive circuit the output voltage of this accumulator is continued on to the power supply of this lighting means.
2. method according to claim 1, wherein, the parameter of regulation power is the switch clock.
3. according to the described method of one of aforementioned claim, wherein, this drive circuit has potential isolation drive circuit, half bridge resonant transformer and/or the pwm circuit of clock control.
4. according to the described method of one of aforementioned claim, wherein, the potential isolation drive circuit of this clock control is anti exciting converter, forward converter or half-bridge converter.
5. according to the described method of one of aforementioned claim, wherein, light modulation regulates by amplitude and/or pulse-width modulation (PWM) is carried out.
6. according to the described method of one of aforementioned claim, wherein, the output voltage of this accumulator is supplied to this drive circuit.
7. according to the described method of one of aforementioned claim, wherein, this accumulator has: single-stage or the multistage passive simple rectifier bridge of filling out paddy circuit, charge pump circuit (Charge Pump) and/or being provided with accumulator electric capacity in the downstream.
8. according to the described method of one of aforementioned claim, wherein, measuring the electric current that flows through at least one LED and/or OLED, is actual value as feedback signal.
9. according to the described method of one of aforementioned claim, wherein, the analysis of the output voltage of this accumulator is carried out directly or indirectly, that is, be to carry out at the output of this accumulator and/or at the output of this drive circuit.
10. according to the described method of one of aforementioned claim, wherein, the light modulation predetermined value can be regulated by phase control and/or by the switching process of manual activation.
11. one kind be used for the voltage controlled by phase controlled light modulator preferably alternating voltage drive the especially drive unit of at least one LED and/or OLED of lighting means, this drive unit has:
-at least one accumulator, the especially passive paddy circuit of filling out,
-drive circuit, it preferably is arranged on this accumulator downstream, and this drive circuit is used for driving this lighting means with the light modulation value, and described light modulation value is limited by a parameter, and
-control circuit STS, it be used for to analyze the output voltage of this accumulator, and this control circuit STS is used for determining the running parameter of this drive circuit, wherein, parameter determine that output voltage according to this accumulator carries out.
12. drive unit according to claim 11, wherein, this drive circuit has anti exciting converter, half bridge resonant transformer, leadage circuit and/or pwm circuit.
13. according to claim 11 or 12 described drive units, wherein, this accumulator has: single-stage or the multistage passive simple rectifier bridge of filling out paddy circuit, charge pump circuit (Charge Pump) and/or being provided with accumulator electric capacity in the downstream.
14. to one of 13 described drive units, it is designed to the described method of one of executive basis claim 1 to 10 according to claim 11.
15. a LED lamp, especially the LED lamp of retrofiting, it has lighting means especially at least one LED and/or OLED and according to claim 11 to one of 14 described drive units for lighting means.
16. the LED lighting device of a tunable optical, it has at least one LED lamp according to claim 15 and phase controlled light modulator.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010031526.5 | 2010-07-19 | ||
| DE102010031526 | 2010-07-19 | ||
| DE102010039150.6 | 2010-08-10 | ||
| DE102010039150 | 2010-08-10 | ||
| DE102011002830A DE102011002830A1 (en) | 2010-07-19 | 2011-01-18 | Dimmable LED lamp |
| DE102011002830.7 | 2011-01-18 | ||
| PCT/EP2011/061946 WO2012010477A1 (en) | 2010-07-19 | 2011-07-13 | Dimmable led lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103026798A true CN103026798A (en) | 2013-04-03 |
Family
ID=45403072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800353760A Pending CN103026798A (en) | 2010-07-19 | 2011-07-13 | Dimmable LED lamp |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2596686B1 (en) |
| CN (1) | CN103026798A (en) |
| DE (1) | DE102011002830A1 (en) |
| WO (1) | WO2012010477A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105453699A (en) * | 2013-08-05 | 2016-03-30 | 赤多尼科两合股份有限公司 | Dimmable led illuminant system |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2654385B1 (en) | 2012-04-17 | 2017-11-08 | Helvar Oy Ab | An apparatus, a method, an arrangement and a computer program for controlling operation of a power supply circuit |
| CN102665343B (en) * | 2012-05-07 | 2015-09-16 | 佛山市华全电气照明有限公司 | The special light adjusting circuit of a kind of integrated LED lamp |
| CN102904436B (en) * | 2012-10-22 | 2016-01-20 | 张逸兴 | A kind of Novel power factor correction circuit |
| AT13793U1 (en) * | 2012-11-16 | 2014-08-15 | Tridonic Gmbh & Co Kg | Operating device for a lamp and method for dimming a lamp |
| WO2014187921A2 (en) * | 2013-05-23 | 2014-11-27 | Zentrum Mikroelektronik Dresden Ag | Assembly and a method for activating leds |
| AT14739U1 (en) | 2013-08-19 | 2016-05-15 | Tridonic Gmbh & Co Kg | Primary-side controlled constant current converter for lighting equipment |
| DE102013224760B4 (en) | 2013-12-03 | 2022-09-29 | Tridonic Gmbh & Co Kg | Driver circuit and method for operating a dimmable LED line in a two-zone dimming range |
| CN104797062B (en) * | 2015-05-13 | 2017-04-26 | 魏其萃 | Non-strobe high-efficiency LED (light-emitting diode) driving manner compatible with phase-controlled light modulator |
| DE102016221741A1 (en) * | 2016-11-07 | 2018-05-09 | Tridonic Gmbh & Co Kg | Driver for a light emitting diode and method |
| CN106793274A (en) * | 2016-12-12 | 2017-05-31 | 浙江大学 | LED driver without electrolytic capacitors based on electric capacity series parallel structure |
| CN107580393B (en) * | 2017-09-25 | 2023-11-07 | 国创能源互联网创新中心(广东)有限公司 | LED driving power supply and lamp |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070267984A1 (en) * | 2006-05-22 | 2007-11-22 | Chris Peng | System and method for selectively dimming an LED |
| CN101193479A (en) * | 2006-11-30 | 2008-06-04 | 财团法人工业技术研究院 | LED AC multi-phase drive device and its control method |
-
2011
- 2011-01-18 DE DE102011002830A patent/DE102011002830A1/en not_active Withdrawn
- 2011-07-13 WO PCT/EP2011/061946 patent/WO2012010477A1/en active Application Filing
- 2011-07-13 EP EP11741420.1A patent/EP2596686B1/en active Active
- 2011-07-13 CN CN2011800353760A patent/CN103026798A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070267984A1 (en) * | 2006-05-22 | 2007-11-22 | Chris Peng | System and method for selectively dimming an LED |
| CN101193479A (en) * | 2006-11-30 | 2008-06-04 | 财团法人工业技术研究院 | LED AC multi-phase drive device and its control method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105453699A (en) * | 2013-08-05 | 2016-03-30 | 赤多尼科两合股份有限公司 | Dimmable led illuminant system |
| CN105453699B (en) * | 2013-08-05 | 2017-05-17 | 赤多尼科两合股份有限公司 | Dimmable led illuminant system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012010477A1 (en) | 2012-01-26 |
| EP2596686A1 (en) | 2013-05-29 |
| DE102011002830A1 (en) | 2012-01-19 |
| EP2596686B1 (en) | 2019-01-23 |
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