CN101164388B - Adjustable digital illuminating means output control - Google Patents
Adjustable digital illuminating means output control Download PDFInfo
- Publication number
- CN101164388B CN101164388B CN2006800133083A CN200680013308A CN101164388B CN 101164388 B CN101164388 B CN 101164388B CN 2006800133083 A CN2006800133083 A CN 2006800133083A CN 200680013308 A CN200680013308 A CN 200680013308A CN 101164388 B CN101164388 B CN 101164388B
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- CN
- China
- Prior art keywords
- parameter
- lighting device
- power
- regulate
- impedance
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
- H05B41/39—Controlling the intensity of light continuously
- H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
- H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
- H05B41/3925—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by frequency variation
-
- 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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
- H05B41/39—Controlling the intensity of light continuously
- H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
- H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
Abstract
A digital control circuit for controlling the output of an illuminating means comprises: an output for a control value indicating the output of the illuminating means (17), a first input for the feedback of a parameter (SPOW) representing the output of the illuminating means (17), at least one additional input for a parameter (SIMP) representing another state of the illuminating means (17), and a discrimination and switching device, which is connected to the first or the second input and which is designed for subjecting the actual value of the parameters at the input to a threshold value discrimination, to compare the parameter (SPOW) indicative of the power or the other parameter (SIMP) indicative of the state of the illuminating means (17) with a calibration value, and to apply the difference to a regulation unit so as to switch the control system, according to the result of the discrimination, to control the output parameter or the other parameter.
Description
Technical field
The power of relate generally to lighting device of the present invention digital regulated for example can put on digital regulated like gaseous discharge lamp through electric ballast (EVG).
In context; " power of lighting device digital regulated " is meant that according to as the feedback parameter and the inner or outside desired value that produces of actual value, produce Control Parameter according to the adjusting algorithm of implementing, this Control Parameter is confirmed the power of lighting device with reference to certain parameter.
This feedback parameter can for example be the parameter of the power of expression lighting device thus, for example lighting device voltage, lighting device electric current or lighting power (for example measuring through photodiode).
For example the digital modulation from the use of the known electric ballast at gaseous discharge lamp of Fig. 1 of WO 02/43087A2 is regulated.
From EP 1 395 096 A2 known a kind of be used to operate fluorescent lamp method and a kind of ballast, use this method and this ballast switching frequency through changing inverter switching device with the brightness regulation of fluorescent lamp to desired value.In order to prevent the fluctuation between the different operating state in the crucial light modulation district, stablize the consumed power (power take-up) of fluorescent lamp by additional regulating loop.
The present invention's purpose itself is to dispose more neatly the power adjustments of digital illuminating means.
Characteristic through independent claims realizes this purpose according to the present invention.Dependent claims has developed center of the present invention design with preferred especially mode.
According to a first aspect of the invention, a kind of particularly method of the power of gaseous discharge lamp of lighting device that is used to regulate is provided.Thus,
Parameter (the S of-indication lamp power
POW) and the parameter (S of the state of at least one other expression lighting device
IMP) fed back,
The parameter of-indication lamp power and/or the parameter that at least one is other stand threshold determination, and
-according to the result of threshold determination, select power parameter or other parameter, and selected parameter is compared as actual value and calibration value, and difference is applied to regulon.
Under the situation that power parameter implement is regulated, this regulate show with the situation of this other parameter being implemented adjusting under different dynamic characteristics.
This at least one other parameter can be represented the impedance of lighting device.
Can implement to regulate to this lamp impedance if the lamp impedance has surpassed predetermined threshold value, otherwise the parameter of indication lamp power is implemented to regulate.
Can digitally confirm to be used for the controlling value of lighting device power based on desired value and actual value.
The present invention also relates to a kind of computer software program product, it supports the digital regulated method according to any one claim of front when it moves on calculation element.
The present invention relates to a kind of digital circuit, it is configured to carry out in the method according to any one claim of front.
The present invention also relates to the digital regulated circuit of the power that is used for lighting device at last, has:
-output is used for the controlling value of the power of a guidance lighting device (17),
-first input end is used for the parameter (S of expression lighting device (a 17) power
POW) feedback,
-at least one other input is used for the other parameter (S of state of an expression lighting device (17)
IMP), and
-judge and switching device shifter that it is connected with first or second input, and be arranged to and make the currency of the parameter that applies at input stand threshold determination, and be used for result according to judgement, through representing the parameter (S of power
IMP) or represent the other parameter (S of the state of said lighting device (17)
IMP) with calibration value relatively, and difference be applied to regulon switch regulating system to regulate power parameter or to regulate other parameter.
To describe further characteristic of the present invention, advantage and characteristic in detail with reference to the diagram and the example embodiment of the present invention of accompanying drawing now.
Therefore Fig. 1 has shown the sketch map according to digital illuminating means power adjustments of the present invention,
Fig. 2 has shown the more detailed view about the coefficient of storage in the algorithm carried out in the digitial controller 1 and the system storage 6 of Fig. 1, and
Fig. 3 has shown the different coefficients that adopted of the different light modulation values (dimming value) that are used for being applied.
In Fig. 1, schematically show the digital circuit 1 of the power that is used to regulate the lighting device that is connected.This digital circuit 1 is the part of the operating means of lighting device.Will be with reference to further explaining the present invention as the instance of operating means and with gaseous discharge lamp as the instance of lighting device with electric ballast.But the present invention also may be used on other Dimmable operating device and lighting device.
As control signal, digital circuit 1 produces the control signal of two electronic switches (FET) that are used for inverter 14, thus can be with the direct current supply voltage V that is applied
z(intermediate circuit voltage) converts the alternating voltage with scalable frequency to, and it is in the midpoint tap of inverter 14.This midpoint at inverter 14 provides the RC circuit with inductance 13 and electric capacity 18 in a known way, and coupling capacitor 16 is connected the back with lamp 17 parallelly connected with electric capacity 18.With symbol lamp 17 is shown among Fig. 1 and can on electricity, be represented as resistor with variableimpedance.
The different parameters of lamp 17 can feed back to digital regulated circuit 1.Show the signal S of direct or indirect indication lamp impedance as an example
IMPS
PowRefer to the signal of indication lamp power.Lamp power for example can be represented by modulating voltage, lamp current or lighting power (for example being detected by photodetector).Be delivered to the feedback signal S of digital regulated circuit 1
IMP, S
PowSo the actual value of indication lamp work, and by AD converter 19,20 digitlizations.The signal S of indication lamp power
PowThe digitized actual value quilt and the first reference voltage V
Ref1Relatively.This reference voltage is represented inner desired value.But as shown by dotted line among Fig. 1, this desired value can depend on the outside light modulation value of transmitting particularly.Under any circumstance the comparative result of actual value/desired value is represented regulating error e (k), and it is passed to first digitial controller 4.
In adjuster 4, carried out a kind of adjusting algorithm; It produces control signal 8 according to the input signal that transmits; Correspondence setting by means of this signal and electronic switch 10 (FET etc.); Inverter driver 12 Be Controlled make the operating frequency of output signal (control signal y (k)) the indication inverter 14 of adjuster 4, and based on the known resonance curve of gaseous discharge lamp 17, the operating frequency of inverter 14 is the power of indicator light again.
Use the control branch road of inverter 14 only to represent an instance, Control Parameter is the frequency of the switch of inverter 14 thus when wherein using this control branch road.But, for gaseous discharge lamp and especially also for other lighting device (light-emitting diode etc.), other Control Parameter also is known, such as lighting device electric current etc., its use that can combine with the present invention at any time.
For this purpose, in system storage 6, the characteristic of adjuster 4 can be associated with some light modulation value mutually, makes that system controller 2 can be read necessary characteristic from computer storage 6 when applying certain light modulation value, and can regulate this adjuster 4 accordingly.
Therefore, in a word, adjuster 4 has the characteristic that can on system controller 2, regulate according to the dim signal of outside transmission.
Like what from Fig. 1, see, can be provided for as actual value parameter lamp impedance S for example
IMPSecond adjuster 5 of another feedback signal.Be passed to this adjuster 5 by AC transducer 19 digitized values, these digitized values represent directly or indirectly to represent instant lamp impedance S thus
IMPSignal.With adjuster 4 similarly, adjuster 5 according to practical impedance with voltage V
REF2The desired value of the impedance represented of form between comparison, produce control signal 9 according to the adjusting algorithm of current executed wherein.
Therefore, the different parameters of one of them indication lamp power can feed back to this adjusting from lamp.For power parameter or other parameter, can make a desired value to use in each case and (see V
Ref1, V
Ref2), this desired value quilt compares with corresponding actual value then, so that difference signal can be passed to adjuster.
Thereby on-off controller 11 can be according to the digitized signal S of indication lamp impedance
IMPInstantaneous value regulate electronic switch 10.For this reason, on-off controller 11 disposes and the said threshold determination function that applies signal correction.
For example can stipulate like this, as the current signal S that applies of indication lamp impedance
IMPIn the time of on predetermined threshold, on-off controller 11 only at control switch 10 at this moment to use second adjuster 5.Therefore, if the signal S of direct or indirect indication lamp impedance (with digital form)
IMPOn predetermined threshold, use lamp impedance S
IMPImplement to regulate as feedback parameter, otherwise, if i.e. lamp impedance under predetermined limits value, is used as the signal S of the indication lamp power of feedback parameter and actual value
PowRegulate.
In addition, can stipulate can be by the characteristic of system controller 2 to regulate second adjuster 5 according to the light modulation value that applies with the similar modes of first adjuster 4.
Schematically illustrated 6 coefficients that are used for regulating algorithm are stored in system storage in Fig. 2.If adjuster 4 and available adjuster 5 according to the input signal e (k) of proper preceding sequential step k and if available previous sequential step k-1, k-1 ... input signal values produce output signal y (k).
Therefore; Can use linear combination to come calculation control signal y (k), said linear combination by the adjusting difference e (k) that exists to current sequential step K and to previous sequential step e (k-1), e (k-2) ... a series of adjusting differences so-called adjustment factor a11, a21 ... form.
This linear combination for example can be represented as follows with mathematical way:
y(k)＝a
1·e(k)+a
2·e(k-1)+...a
n·e(k-n-1)
+b
1·y(k)+b
2·y(k-1)+...b
m·y(k-m-1)
Wherein a and b are the adjuster coefficients.
K is current sequential step (clock)
M is the maximum number of the value of the front that is considered.
So-called adjusting path is lighting device has been confirmed suitable adjustment factor usually together with the dynamic characteristic of the output circuit of upper reaches electronic installation (for example ballast) selection.These adjustment factors are selected to and make closed regulating loop make rapid and stable reaction to the variation of input end or to disturbance variable.
According to the present invention, regulate the characteristic that this regulates the Digital Implementation of algorithm according to the light modulation value of Set For Current, this is like top can for example implementing from the coefficient of system storage 6 through system controller 1 and use of having explained.
The characteristic of adjuster can be conditioned according to the current operation status of the lighting device of operating as an alternative or additionally.Under the situation of the gaseous discharge lamp that uses igniting, these different operating states can for example be:
After-the igniting soon
In-the burning, promptly stable operation
-other
The advantage of the Digital Implementation of regulating loop is that these adjustment factors a11, a21 etc. can be relatively easily changed by the control signal of system controller 1.If use similar analogue system, then for this purpose, the switching between the different hardware element will be necessary, and this switches complicacy and cost is high, and influence the precision of system.
According to a further aspect in the invention, some boundary condition for example lighting device be operated in following time of situation of low temperature and more small light modulation value, can change regulating characteristics, to change the kind of selecting as the feedback parameter of actual value.For example can stipulate not re-use the signal S of indication lamp power
PowAnd be to use the for example impedance S of lamp of different measurement parameters
IMPAs feedback parameter, to guarantee the stable operation of lamp.In addition or the replacement of conduct this replacing relevant, also can meanwhile change the value and the number of adjustment factor with feedback parameter.For this reason, like what mentioned, if available, would be preferred to the switching of second adjuster 5.
Digital regulated circuit 1 can be used as FPGA and is implemented in hardware, software or their combination in any.
Claims (10)
1. method that is used to regulate the power of lighting device, wherein:
The power parameter of the power of the said lighting device of-expression is fed back with at least one other parameter of the state of the said lighting device of expression,
Said power parameter and/or said at least one other parameter of the power of the said lighting device of-expression stand threshold determination, and
-according to the result of said threshold determination, select said power parameter or said at least one other parameter, and selected parameter is compared as actual value and calibration value, and difference is applied to regulon.
2. method according to claim 1, wherein, said lighting device is a gaseous discharge lamp.
3. method according to claim 1, wherein under the situation that said power parameter is implemented to regulate, said adjusting have with the situation of said at least one other parameter being implemented adjusting under different dynamic characteristics.
4. according to the described method of one of claim 1 to 3, the impedance of wherein said at least one other said lighting device of parametric representation.
5. method according to claim 1 is wherein implemented to regulate to the impedance of said lighting device when the impedance of said lighting device surpasses predetermined threshold, otherwise the said power parameter of the power of representing said lighting device is implemented to regulate.
6. method according to claim 1 wherein digitally confirms to be used for the controlling value of the power of said lighting device based on desired value and said actual value.
7. the digital regulated circuit of the power of a lighting device has:
-output is used to indicate the controlling value of the power of said lighting device,
-first input end is used to represent the feedback of power parameter of the power of said lighting device,
-at least one other input is used to represent the other parameter of the state of said lighting device, and
-judge and switching device shifter; It is connected with said first input end or said at least one other input; And be arranged to and make the currency of the parameter that applies at said input stand threshold determination; And be used for result according to said judgement; The said power parameter of the power through will representing said lighting device or represent said lighting device state said other parameter and calibration value relatively, and difference is applied to regulon, switch said regulating circuit to regulate said power parameter or to regulate said other parameter.
8. circuit according to claim 7, the impedance of the wherein said other said lighting device of parametric representation.
9. circuit according to claim 8 if its impedance that is configured to said lighting device surpasses predetermined threshold then the impedance of said lighting device is regulated, otherwise is implemented the adjusting to the said power parameter of the power of representing said lighting device.
10. circuit according to claim 7, it is digitally realized.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200510018764 DE102005018764A1 (en) | 2005-04-22 | 2005-04-22 | Illuminant e.g. electric discharge lamp, output controlling method, involves controlling lamp output based on results of threshold discrimination on output parameter or further parameter as actual value |
| DE102005018764.1 | 2005-04-22 | ||
| PCT/EP2006/002792 WO2006114176A1 (en) | 2005-04-22 | 2006-03-27 | Adjustable digital illuminating means output control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101164388A CN101164388A (en) | 2008-04-16 |
| CN101164388B true CN101164388B (en) | 2012-05-23 |
Family
ID=36933617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800133083A Expired - Fee Related CN101164388B (en) | 2005-04-22 | 2006-03-27 | Adjustable digital illuminating means output control |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1872631A1 (en) |
| CN (1) | CN101164388B (en) |
| AU (1) | AU2006239628B2 (en) |
| DE (1) | DE102005018764A1 (en) |
| WO (1) | WO2006114176A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5600211A (en) * | 1994-09-16 | 1997-02-04 | Tridonic Bauelemente Gmbh | Electronic ballast for gas discharge lamps |
| US6316886B1 (en) * | 1997-03-04 | 2001-11-13 | Tridonic Bauelemente Gmbh | Method and device for controlling the operational performance of gas discharge lamps |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3910738A1 (en) * | 1989-04-03 | 1990-10-04 | Zumtobel Ag | CONTROL UNIT FOR A DIRECTLY HEATED DISCHARGE LAMP |
| ATE216829T1 (en) * | 1996-01-26 | 2002-05-15 | Tridonic Bauelemente | METHOD AND ELECTRONIC CONTROL CIRCUIT FOR REGULATING THE OPERATING BEHAVIOR OF GAS DISCHARGE LAMPS |
| DE10240807A1 (en) * | 2002-08-30 | 2004-03-11 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Process for operating fluorescent lamps and ballast |
-
2005
- 2005-04-22 DE DE200510018764 patent/DE102005018764A1/en not_active Withdrawn
-
2006
- 2006-03-27 WO PCT/EP2006/002792 patent/WO2006114176A1/en not_active Application Discontinuation
- 2006-03-27 EP EP06707645A patent/EP1872631A1/en not_active Withdrawn
- 2006-03-27 CN CN2006800133083A patent/CN101164388B/en not_active Expired - Fee Related
- 2006-03-27 AU AU2006239628A patent/AU2006239628B2/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5600211A (en) * | 1994-09-16 | 1997-02-04 | Tridonic Bauelemente Gmbh | Electronic ballast for gas discharge lamps |
| US6316886B1 (en) * | 1997-03-04 | 2001-11-13 | Tridonic Bauelemente Gmbh | Method and device for controlling the operational performance of gas discharge lamps |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2006239628B2 (en) | 2011-09-15 |
| DE102005018764A1 (en) | 2006-10-26 |
| WO2006114176A1 (en) | 2006-11-02 |
| EP1872631A1 (en) | 2008-01-02 |
| CN101164388A (en) | 2008-04-16 |
| AU2006239628A1 (en) | 2006-11-02 |
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Granted publication date: 20120523 Termination date: 20180327 |