CN101411247A - Operating appliance for a lighting device - Google Patents
Operating appliance for a lighting device Download PDFInfo
- Publication number
- CN101411247A CN101411247A CNA2007800112611A CN200780011261A CN101411247A CN 101411247 A CN101411247 A CN 101411247A CN A2007800112611 A CNA2007800112611 A CN A2007800112611A CN 200780011261 A CN200780011261 A CN 200780011261A CN 101411247 A CN101411247 A CN 101411247A
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- CN
- China
- Prior art keywords
- reference value
- lighting device
- operating equipment
- signal
- comparator
- Prior art date
- 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.)
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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
- 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
- H05B41/382—Controlling the intensity of light during the transitional start-up phase
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- Circuit Arrangements For Discharge Lamps (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to the operation of an operating appliance for lighting devices, especially an electronic ballast for gas discharge lamps. The lighting device is controlled by the output of control signals of a digital control circuit (1). At least one analog measuring signal is returned to the digital control circuit (1), the at least one analog measuring signal being compared with an adjustable reference value in the digital control circuit (1), and the adjustable reference value being output by the central control unit (2) of the digital control circuit (1). The reference value depends on the actual operating condition of the operating appliance and/or the actual phase position of the at least one measuring signal.
Description
Technical field
The present invention relates to method that a kind of operation is used for the operating equipment of lighting device, realize the control unit of this method and the operating equipment of lighting device.
The present invention can be used for as control gaseous discharge lighting device, therefore for simplification, will describe the present invention according to the electric ballast (electronic-controlled installation, electronic control gears is hereinafter to be referred as ECGs) of gas discharge lighting device below.The electronics that the present invention can be applied to other lighting device such as high pressure lighting device, light-emitting diode etc. equally activates.
Background technology
Recently, the electronic control circuit in the operating equipment field of lighting device is digitized gradually.Usually, the task of sort circuit is a control lighting device with respect to its output.And, for the mode of finishing this task is to realize the drive circuit of the exciting of lighting device, supply power voltage and periphery (as AC power or the electronics smog that is connected) in compatible as far as possible mode.
Yet originally these digital control circuits are designed to be relative redundancy for security consideration, have seen that recently the digital control circuit of the operating equipment of lighting device is simplified just gradually.This especially is related to the minimizing of required element aspect, although the control algolithm that provides also will be considered many parameters.
The integrated digital control circuit of power electronics is known, for example among the U.S. Patent number US6946984B2.There, circuit is simplified to various analog input signals and is changed then further by the degree of digital processing by the mode of multichannel by an analog to digital converter (ADC).
Summary of the invention
The objective of the invention is can be enough relatively less but very flexibly element realize the digital control circuit of the operating equipment of lighting device.
This purpose realizes by the feature of independent claims according to the present invention.Dependent claims has launched central idea of the present invention in particularly advantageous mode.
Therefore provide a kind of operation to be used for lighting device according to the present invention, especially the method for the commanding apparatus of the electric ballast of gas discharge lighting device.This lighting device is by the emission control of the excitation signal of digital control circuit.At least one analogue measurement signal is fed to digital control circuit and handles by Control Engineering there, promptly produces the excitation signal that depends on measuring-signal.In order to regulate the analogue measurement signal, at least one analogue measurement signal compares with an adjustable reference value in digital control circuit.In this case, adjustable reference value is set in advance by the central control unit of digital control circuit.
This reference value directly offers a comparator by a D/A converter, and the analogue measurement signal is provided at another input of comparator.Therefore this comparator finishes the A/D conversion, so that the output signal of comparator can further be carried out digital processing.
This reference value also can be stored in the memory device by a D/A converter, and wherein the content of memory device offers a comparator, and the analogue measurement signal is provided at another input of comparator.The output signal of comparator is the signal that can further carry out digital processing successively.
Can use an analog storage equipment herein, such as switching capacity.
This reference value can depend on the current operation status of described operating equipment and/or the current phase angle of described at least one measuring-signal.For example, the conclusion about the current operation status of the gas discharge lighting device of a connection also can draw as the phase place by lighting device electric current and lighting device voltage by the phase signal of measuring-signal.
In central control unit, can realize a sequence control system relevant with the mode of operation of operating equipment.
By a multiplexer, central control unit can be selected in the measuring-signal of a plurality of feedbacks, and measuring-signal of selecting then and reference value compare with further calculating.Reference value can be stored in an outside or the internal storage device from central control unit.
According to a further aspect of the present invention, for the operating equipment of a lighting device provides a control unit, this control unit is equipped with to implement method as detailed above.
This control unit can be formed as microcontroller, hard wired logic or as FPGA (Field Programmable Gate Array).At last, especially electronic ballast operation equipment and a kind of luminaire of gas discharge lighting device of the operating equipment that the invention still further relates to a kind of lighting device with a lighting device and such operating equipment.
With reference now to accompanying drawing, further further feature of the present invention, advantage and characteristic are carried out more detailed explanation.
Description of drawings
Fig. 1 shows schematic circuit block diagram of the present invention;
Fig. 2 shows sequence control system, if wherein sequence control system output is depended on current operation state and is suitable for the output signal that also can depend on the predefined state in the mode of operation.
List of numerals
1 digital control circuit (1)
2 control units (sequence control system)
3 digital to analog converters
4 comparators
5 multiplexer (MUX)
6 External memory equipments
7 internal storage devices
8 external clocks
Exciting of 9 external switches
10?MUX
11 memory devices
12 comparators
13 power factor circuit for rectifying
14 switches
15 charge coils
16 diodes
17 storage capacitances
18 load circuits
19 lighting devices
20 transducers
21 control signals
Embodiment
With reference now to Fig. 1, the present invention is made an explanation.
As already explained, the present invention is according to the electric ballast (ECG) of gas discharge lighting device and to make an explanation be because statement reason in this example purely.
Supply power voltage (perhaps direct voltage that comes from battery etc. etc.) U once over commutation
DCOffer power factor in known manner and correct that (power factor correction is hereinafter to be referred as PFC) circuit.Pfc circuit and its operator scheme are known to those skilled in the art.
Pfc circuit 13 has 15, one gate-controlled switches 14 of a charge coil (as a field-effect transistor) and a diode 16.Adopt 13, one storage capacitances 17 of this pfc circuit to be charged to a bus voltage U that cardinal principle is constant
Bus, bus voltage U
BusUsually than supply power voltage U through over commutation
DCGreatly.Bus voltage U
BusFor example be converted into the high frequency supply power voltage U that is used for load circuit 18 by a converter 20 with gate-controlled switch (as field-effect transistor) 22,23
AC, wherein this operating means comprises the gas discharge lighting device 19 of the conduct slip Ohmic resistance that goes out as shown.
The switch 14 of pfc circuit 13 and the switch of converter 20 22,23 be not since a digital control circuit 1 Be Controlled (in order to simplify accompanying drawing, the drive circuit that provides usually illustrates).
So operation of the lighting device 19 of digital control circuit 1 control connection.
Come from operating device (as lighting device voltage, lighting device electric current), load circuit, supply power voltage (U
DC, U
BusDeng) if the various stages and the regional signal of other operating parameter (as electric current) that is suitable for pfc circuit 13 by charge coil 15 be provided for digital control circuit 1.Measuring-signal usefulness S1, the S2 of a plurality of feedbacks, S3 ... Sn is according to graphical indicia.
These analogue measurement signals adopt the central control unit 2 in the digital control circuit 1 to calculate by Control Engineering, be used for adopting the software of central control unit 2 or the control algolithm that hardware provides, depend on the past of these analogue measurement signals and/or the control signal 21. of currency in order to determine and to export
For this reason, central control unit 2 for example selects one in a plurality of feedback analogue measurement signals to calculate by multiplexer 5,10 at default time point or in preset period.For reaching this purpose, two multiplexer 5,10 of central control unit control, a plurality of different feedback analogue measurement signal S1 of the input of this multiplexer 5,10, S2, S3 ... Sn is provided respectively.The output of multiplexer 5,10 is connected to respectively at least one comparator 4,12.
A digital signal is represented in the output of comparator 4,12, and this digital signal is provided for central control unit 2.Therefore, this digital control unit 2 can be provided by digitized signal then that use default control algolithm to provide.As a result, excitation signal can be the various operating parameters outputs of the power supply circuits of lighting device or load circuit or lighting device itself then.
Shown in this example, switch 20,21 and 22 is with as pulse duration model (pulse width, modulation) 9 form Be Controlled.
For the digital control circuit shown in the allocation plan 1 neatly, and for it can be arranged to operating equipment or lighting device and want calculated analogue measurement signal S1, S2, S3 ... the current state of Sn, central numeral control unit 2 pre-determine adjustable reference value for comparator 4,12.For this reason, digital control unit 2 output digital values, this digital value is converted by a D/A 3, and any one offers second input of comparator 4 then.This is consistent with quick dynamic change in the reference value of comparator 4.The analogue measurement signal S1 that selects by the multiplexer channel selecting, S2, S3 ... Sn is provided at another input of comparator.
Alternatively and/or in addition, the output signal of D/A converter 3 also can offer an analog storage equipment as a switching capacity 11, the storing value of analogue measurement signal be provided as a kind of static reference value and in longer cycle like this " statically " be provided as the reference value of comparator 12.
Especially about this " static comparator " 12, should be noted that a plurality ofly can parallel to each otherly to be provided by multiplexer 10, analog storage equipment 11 and such unit of forming with the comparator 12 of so-called comparator thesaurus form respectively.
On the contrary, the dynamic comparer 4 with fast-changing input signal preferably only is set up once.
According to the present invention, it is flexible that control unit 2 preferably also will keep, therefore its order, the parameter of control algolithm, the channel selecting of multiplexer 5,10 etc. can be changed from the outside, provide because the corresponding default value is stored in inside or the External memory equipment 6,7 or by a bus (not shown).
Can especially depend on the current state of lighting device by the digital value of the control unit 2 current outputs of the reference value that is used to be provided with each comparator 4,12, wherein the major state of operating equipment 19 can be divided into sub-state successively.This illustrates in Fig. 2.
The reference value of this comparator here can be different for each sub-states in the main operation state of lighting device.The therefore different reference values of output comparator in a main operation state.
Under the situation of gas discharge lighting device, for example can there be main operation state " startup ", " preheating ", " igniting ", conventional lighting device operation " RUN " and error condition " mistake " like this.As shown in Figure 2, for main operation state " preheating ", " igniting " and " RUN ", the sequence control system that realizes in central control unit 2 has sub-state D1, D2, D3 and D4.
Like this, the out of phase of measuring-signal is an example of different sub-states.For example, first phase place and in this way the first sub-state can be the scope of the peak value of one-period signal.Another sub-state can be the phase range of crossing null range of identical measuring-signal.Because there are different demands (time constant, resolution etc.) in the control about described out of phase, the different reference values of comparator can be exported in out of phase.If be suitable for, the cycle of measuring-signal also can know, because certain the typical measuring-signal in lighting device scope (lighting device electric current etc.) has the cycle of the control signal that depends on control unit itself (transducer of electric ballast excite etc.).
Under the situation of periodic signal, with the measurement of sub sampling form also can take place in case in the period 1 calculating of first phase place (as the peak value scope of measuring-signal) and in another cycle another phase place (as zero passage) calculated.
Therefore, even the different cycles of measuring-signal can represent sub-state, wherein default different reference value.
As already explained, if can producing, central control unit 2 depends on current main operation state and the following output signal that is suitable for current child-operation state:
About the channel selecting of the current analogue measurement signal that excites calculating that will be by multiplexer 5,10 and/or
The reference value that D/A converter 3 is provided with comparator 4,12 that outputs to by digital signal.Preferably, only provide a D/A converter 3 to be used to carry out the calculating of analogue measurement signal.
This control circuit can be formed to mix as application-specific integrated circuit (ASIC), microcontroller, hard wired logic or as FPGA (Field Programmable Gate Array) and as it and carry out.
Claims (24)
1, a kind of operation is used for lighting device (19), especially the method for the operating equipment of the electric ballast of gas discharge lighting device (ECG), wherein said lighting device (19) is by the output of excitation signal (21) control, and at least one analogue measurement signal (S1...Sn) is fed, wherein
Described at least one an analogue measurement signal and an adjustable reference value be (4,12) relatively, and
Described adjustable reference value can be provided with in the mode of operation of described lighting device.
2, method according to claim 1, wherein said reference value directly offers a comparator (4) by a D/A converter (3), and described analogue measurement signal is provided at another input of described comparator.
3, method according to claim 1, wherein said reference value is stored in the memory device (11) by a D/A converter (3), the content of wherein said memory device (11) offers a comparator (12), and described analogue measurement signal is provided at another input of described comparator.
4, method according to claim 3 wherein adopts an analog storage equipment (11).
5, according to claim 3 or 4 described methods, wherein a switching capacity (11) is as memory device.
6, according to the described method of aforementioned arbitrary claim, wherein said reference value depends on the current operation status of described operating equipment and/or the current phase angle of described at least one measuring-signal.
7, according to the described method of aforementioned arbitrary claim, wherein realize a sequence control system according to the mode of operation of operating equipment.
8,, wherein, this signal and described reference value are compared by one in the measuring-signal (S1...Sn) of a plurality of feedbacks of a multiplexer (3,10) selection according to the described method of aforementioned arbitrary claim.
9, according to the described method of aforementioned arbitrary claim, wherein said reference value is stored in an outside or the internal storage device by control unit.
10, a kind of operating lighting means (19), especially the method for the commanding apparatus of the electric ballast of gas discharge lighting device (ECG), wherein said lighting device (19) is by the output control of excitation signal (21), and at least one analogue measurement signal (S1...Sn) is fed and is used for calculating, wherein
Described at least one an analogue measurement signal that is used to calculate and an adjustable reference value be (4,12) relatively, and
Described adjustable reference value differently was provided with in the out of phase and/or the cycle of described measuring-signal.
11, a kind of control unit that is used for the operating equipment of lighting device (19), it is equipped with to realize according to the described method of aforementioned arbitrary claim.
12, control unit according to claim 10 is characterized in that this control unit is formed as microcontroller, hard wired logic or as FPGA (Field Programmable Gate Array).
13, a kind of lighting device (19) that is used for, especially the electric ballast of gas discharge lighting device (ECG) operating equipment, wherein said lighting device (19) is excited by the output of the excitation signal (21) of a digital control circuit (1), and at least one analogue measurement signal (S1...Sn) is fed to described digital control circuit (1), wherein
At least one comparator (4,12) compares at least one an analogue measurement signal in the described digital control circuit (1) and an adjustable reference value, and
Described adjustable reference value is by a control unit (2) output of described digital control circuit (1), and wherein said reference value is adjustable by described control unit (2) in the mode of operation of described lighting device (19).
14, operating equipment according to claim 12, wherein said reference value directly offers a comparator (4) by a D/A converter (3), and described analogue measurement signal offers another input of described comparator.
15, operating equipment according to claim 12, wherein said reference value is stored in the memory device (11) by a D/A converter (3), wherein said storage content offers a comparator (12), and described analogue measurement signal is provided at another input of described comparator.
16, operating equipment according to claim 14, wherein said memory device are formed as an analog storage equipment, as a switching capacity (11).
17, according to the arbitrary described operating equipment of claim 12-15, wherein said reference value depends on the current operation status of described operating equipment and/or the current phase angle of described at least one measuring-signal.
18, according to the arbitrary described operating equipment of claim 12-16, wherein the described mode of operation according to described operating equipment is realized a sequence control system in central control unit (2).
19, operating equipment according to claim 17, the sequence of states of wherein said sequence control system is variable.
20, according to the arbitrary described operating equipment of claim 12-18, wherein central control unit (2) is compared this signal and described reference value by a comparator (4,10) by one in the measuring-signal of a plurality of feedbacks of a multiplexer (3,10) selection.
21,, it is characterized in that it is the electric ballast of a gas discharge lighting device according to the arbitrary described operating equipment of claim 12-19.
22,, it is characterized in that described reference value is stored in an outside or the internal storage device according to the arbitrary described operating equipment of claim 12-20.
23, according to the arbitrary described operating equipment of claim 12-21, wherein said control unit (1) is formed as microcontroller, hard wired logic or as FPGA (Field Programmable Gate Array).
24, a kind of luminaire has a lighting device and according to the arbitrary described operating equipment of claim 12-21.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006014062.1A DE102006014062B4 (en) | 2006-03-27 | 2006-03-27 | Operating device for bulbs |
| DE102006014062.1 | 2006-03-27 | ||
| PCT/EP2007/001333 WO2007110125A1 (en) | 2006-03-27 | 2007-02-15 | Operating appliance for a lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101411247A true CN101411247A (en) | 2009-04-15 |
| CN101411247B CN101411247B (en) | 2013-01-30 |
Family
ID=37198728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780011261.1A Expired - Fee Related CN101411247B (en) | 2006-03-27 | 2007-02-15 | Operating appliance for a lighting device |
Country Status (4)
| Country | Link |
|---|---|
| EP (2) | EP2000011B1 (en) |
| CN (1) | CN101411247B (en) |
| DE (1) | DE102006014062B4 (en) |
| WO (1) | WO2007110125A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8207681B2 (en) | 2008-01-24 | 2012-06-26 | Osram Ag | Circuit arrangement and method for regulating the current through at least one discharge lamp |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4168453A (en) * | 1977-12-28 | 1979-09-18 | Datapower, Inc. | Variable intensity control apparatus for operating a gas discharge lamp |
| DE4343017A1 (en) * | 1993-12-16 | 1995-06-22 | Zumtobel Licht | Method for adjusting the total light in a room and device for carrying out the method |
| ATE220849T1 (en) * | 1997-12-23 | 2002-08-15 | Tridonicatco Gmbh & Co Kg | ELECTRONIC BALLAST |
| KR100697726B1 (en) | 2000-02-10 | 2007-03-21 | 페어차일드코리아반도체 주식회사 | A lamp system equipped with an electric ballast |
| WO2002067636A1 (en) | 2001-02-20 | 2002-08-29 | Noontek Limited | A digital lamp controller for low frequency operation |
| EP1504530A4 (en) | 2002-04-10 | 2008-11-05 | Systel Dev And Ind Ltd | System on chip for digital control of electronic power devices |
| WO2004030420A1 (en) * | 2002-09-25 | 2004-04-08 | Matsushita Electric Works, Ltd. | Electronic ballast for a discharge lamp |
| DE102004036958A1 (en) * | 2004-07-30 | 2006-03-23 | Tridonicatco Gmbh & Co. Kg | Control of circuit breakers |
| TWI294683B (en) * | 2004-08-23 | 2008-03-11 | Monolithic Power Systems Inc | A fault protection scheme for ccfl integrated circuits |
| JP4581714B2 (en) * | 2005-02-01 | 2010-11-17 | ウシオ電機株式会社 | Discharge lamp lighting device |
| JP2006221888A (en) * | 2005-02-09 | 2006-08-24 | Ushio Inc | Discharge lamp lighting apparatus |
-
2006
- 2006-03-27 DE DE102006014062.1A patent/DE102006014062B4/en not_active Expired - Fee Related
-
2007
- 2007-02-15 CN CN200780011261.1A patent/CN101411247B/en not_active Expired - Fee Related
- 2007-02-15 EP EP07711552A patent/EP2000011B1/en active Active
- 2007-02-15 WO PCT/EP2007/001333 patent/WO2007110125A1/en active Application Filing
- 2007-02-15 EP EP10196385.8A patent/EP2315506B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP2000011B1 (en) | 2012-06-27 |
| WO2007110125A1 (en) | 2007-10-04 |
| EP2315506B1 (en) | 2018-04-25 |
| EP2315506A3 (en) | 2012-11-21 |
| DE102006014062B4 (en) | 2018-05-17 |
| DE102006014062A1 (en) | 2007-10-04 |
| CN101411247B (en) | 2013-01-30 |
| EP2000011A1 (en) | 2008-12-10 |
| EP2315506A2 (en) | 2011-04-27 |
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