CN104412707B - The method of operating of operation equipment and operation equipment for light-emitting device - Google Patents
The method of operating of operation equipment and operation equipment for light-emitting device Download PDFInfo
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- CN104412707B CN104412707B CN201380019677.3A CN201380019677A CN104412707B CN 104412707 B CN104412707 B CN 104412707B CN 201380019677 A CN201380019677 A CN 201380019677A CN 104412707 B CN104412707 B CN 104412707B
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Classifications
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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
- H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
-
- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/59—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits for reducing or suppressing flicker or glow effects
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- Circuit Arrangement For Electric Light Sources In General (AREA)
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- Dc-Dc Converters (AREA)
Abstract
A kind of operation equipment (2) for light-emitting device (3) includes：Circuit of power factor correction (20)；Converter (30), the converter are connected with the circuit of power factor correction (20) and with the output end (41) that powers for light-emitting device (3)；And control device (14), the control device has input (51), and the input is used for the voltage (Vbus) that sensing is supplied to the converter (30) by the circuit of power factor correction (20).Control device (14) are configured to execute the assessment to the ripple voltage (64) in the voltage (Vbus), and are determined and the output end (41) connected load (3) of the converter (30) and/or the power output of the converter (30) according to the assessment.
Description
The present invention relates to a kind of operation equipment for light-emitting device.The invention particularly relates to this kind of with power factor school
The operation equipment of positive circuit.
Avoided using PFC (" PFC " PFC) or at least reduce and occur in input current
Harmonic current.Harmonic current may be particularly occurred in non-linear customer, the rectification for example in the supply with continuous filtering
In device, because in the case of such customer, although input voltage is sinusoidal form, but the phase place of input current occurs partially
Move and occur the distortion of non-sine form.The high-frequency harmonic vibration for now occurring can be by connection in front of each device
Circuit of power factor correction that be activated or clock control is resisting.Circuit of power factor correction can be also used for flare-aircraft
The operation equipment of structure, the such as electric ballast of fluorescent illumination mechanism or LED converter.This circuit is for operating illumination
The device of mechanism is meaningful, this is because specification limit is sent back to and allows harmonic wave in supply network.
It is generally desirable to operation equipment and can be used for different light-emitting devices, the LED mould being for example used for varying number LED
Block.Desirably, the operation equipment for being capable of automatic detection load connected with the output end of converter is provided.This causes necessity
When make operation equipment control or adjustment with load be adapted.Can be automatically true by information by measurement process for this operation equipment
It is set to a measured value and running parameter is adjusted according to the measured value.
Document EP1881745A1 achieves the detection to lamp type using spiral resistive measurement.Parameter of igniting is corresponded to should
The type detection of lamp is setting, and starts lamp.Derived power and derived in school again by the power by ignitor supply
The parameter of the circuit of power factor correction arranged for the power in positive lamp type detection process.
International Publication file WO2009/146934A2 describes method and apparatus, wherein adopts from a parameter
The turn-on time of the PFC switch that APFC (" PFC ") is especially measured, and using operation equipment extremely
A few running parameter.
Therefore when operation equipment is so-called SELV (" single ELV " or " SELV ") equipment, right
The detection of the load of operation equipment output end enables in particular to express a requirement.In such devices for security reasons in tool
Have between the SELV side of low-voltage and non-SELV side and there is potential isolation, the non-SELV side is electrically isolated out with SELV side.?
For requiring in the operation equipment of light-emitting component that such electric current separates or potential isolation is in order at security consideration, will pass through
So-called potential barrier or SELV potential barrier make ELV (special low pressure) area and the area with higher supply voltage and especially line voltage
Domain separation.
Detection converter output end is conventionally used to, i.e. the method for the attribute of the load of the output end of SELV side is included in SELV
Side obtains the process of measured value.But corresponding assessment and control are needed in SELV side using corresponding logical block or return
Measured value via SELV potential barrier.Two processes are all related to additional circuit engineering cost
Task is to provide apparatus and method and provides improvement project about the problem.Task is, provides device
And method, wherein the load of operation equipment output end and/or power output can be detected.
Task is, provides apparatus and method, need not be load inspection wherein in the operation equipment with potential barrier
Survey and obtain measured value on the secondary side.
According to the present invention, provide a kind of be given in the independent claim feature, for light-emitting device and side
The operation equipment of method.It is favourable and preferred embodiment that dependent claims limit the present invention.
In the method and apparatus according to embodiment, operation equipment has the power factor school for providing voltage to converter
Positive circuit.The converter can be insulation or nonisulated formula resonance converter, e.g. LLC resonance converter.The conversion
The output end (being also used as the output end of operation equipment) of device operationally provides electric energy to light-emitting device.PFC
The control device of circuit can be carried out and be arranged so which according to assessment ripple voltage, especially circuit of power factor correction
The ripple voltage of the peak-peak voltage in the voltage provided to converter is determining load connected with the output end of converter
And/or the power output of converter.
Allowed according to ripple voltage, especially to by circuit of power factor correction according to the method and apparatus of embodiment
Load and/or the power output assessed to detect converter of the ripple voltage of the peak-peak voltage of offer.Assessment for
The measured value of remained capacity will be obtained in primary side.It is not necessarily to for load detecting process and on the SELV side of operation equipment
Obtain measured value.
For example in order to different loads will be detected, control device can be arranged for detecting multiple LED, these LED
Powered by the output end of converter.According to the amplitude of the ripple voltage in the voltage provided by circuit of power factor correction,
In the case of the measured value about SELV potential barrier need not be returned, this or other load detecting processes are feasible.
The control device for example can be determined in the case of using indicatrix by way of form inquiry.The control
Device processed can be using the load for so determining according to another characteristic curve, such as to be determined by another form inquiry
For operating the parameter of converter, the form inquiry should be used for the load for detecting.The control device can be according to detecting
Load and/or power output control the operation to operation equipment in a different manner.
In one embodiment, the control device is configured to the luminous intensity of light-emitting device according to the load that detects
It is adjusted to rated value.As an alternative or supplement, the control device can be configured to suppress color shift according to the load for detecting.
As an alternative or supplement, the control device can be configured to suppress flicker according to the load for detecting.
The control device can act in a different manner the operation of operation equipment so as to according to the load that detects come
Control the operation.The control device can select the Working mould for circuit of power factor correction according to the load for detecting
Formula.The control device can be selected according to the load for detecting, if should when DCM (" discontinuous conduction mode ") works or
Person continuous and by the continuous current of inductor, i.e.,：In BCM (" critical conduction mode " or " border conduction mode ") work
Operation power factor correcting circuit when making.The control device also can be selected according to the load for detecting for power factor school
The running parameter of positive circuit.For example, the power factor that the control device can be according to the adjustment of load for detecting when BCM works
The turn-on time (" Ton " time) of the power switch 24 of correcting circuit 20.As an alternative or supplement, the control device being capable of basis
The load for detecting is adjusting the stand-by period or most before the power switch connection of the circuit of power factor correction when DCM work
The short stand-by period.
The control device also can select the mode of operation for converter according to the load for detecting.The control device energy
Enough select according to the load for detecting, should be operated with pulsed operation state converter (wherein cut off converter half-bridge or
Full-bridge certain period of time), converter still should be operated with continuous duty, for example, dim for amplitude.The control dress
Put and running parameter for converter can be automatically determined according to the load for detecting, the half-bridge of such as converter or full-bridge
The connection frequency of switch.
The operation equipment can be implemented as the form of LED converter.The operation equipment can also be implemented as constant electricity
The form of potential source.The operation equipment can be implemented as so that realizing the adjustment to operation equipment output voltage.
The control device can be implemented as the form of integrated circuit, and (ASIC is " specially to be especially implemented as special particular electrical circuit
With integrated circuit ").
According to the method for different embodiments and the effect for therefore each reaching with according to the operation equipment of embodiment
Embodiment is corresponding.
Hereinafter with reference to accompanying drawing and with reference to preferred embodiment in detail the present invention is described in detail.
Fig. 1 shows the illuminator with circuit of power factor correction according to an embodiment.
Fig. 2 shows the circuit diagram of the operation equipment according to an embodiment.
Fig. 3 has been depicted the load detecting process of the peak-peak voltage of the ripple voltage based on bus voltage, the peak
Value-crest voltage is by according to the use of the control device of an embodiment operation equipment.
Fig. 4 has been depicted the process of the peak-peak voltage for knowing ripple voltage, and the peak-peak voltage is by according to one
The control device of the operation equipment of individual embodiment is used.
Fig. 5 is the block diagram of the control device of the operation equipment according to an embodiment.
Fig. 1 is shown including for lighting device 3, being such as used for the block diagram of the illuminator 1 of the operation equipment 2 of LED.Behaviour
Make equipment 2 to be connected with bus 4 or wireless connection system, to receive dimming commands and/or status report.
Operation equipment 2 for example can be embodied as gas-discharge lamp, luminescent material lamp or another fluorescent illuminating device
Or it is embodied as LED converter.Operation equipment 2 carries out rectification with rectifier 10 to supply voltage, for example to supply voltage.
Operation circuit 2 is with circuit of power factor correction 11.Operation circuit 2 is with control device 14.Circuit of power factor correction 11 is carried
For a voltage Vbus, also referred to as bus voltage, for the downstream components of operation equipment 2.Can be reached by converter 12
To another voltage conversion and/or dimming function, the converter can be implemented as resonance converter.Converter 12 can be with transformation
Device or other commutators are to realize electric isolution between the SELV side of operation equipment and non-SELV side.
Rectifier 10 can be connected to alternating voltage via a high frequency filter as far as possible, especially be connected to power supply electricity
Pressure.The alternating voltage of the rectification that circuit of power factor correction 11 can be received from rectifier 10 is using as input voltage.
Circuit of power factor correction 11 achieves the function of filtering and produces a DC voltage Vbus to be supplied to converter 12.So
And the voltage of the supply voltage as converter 12 produced by circuit of power factor correction 11 also has ripple voltage, i.e.,:Tool
There is a ripple.
Operation equipment 2 and the especially feature of control device 14 will be described by detail by referring to Fig. 2 to Fig. 6.Logical
For often, control device 14 can according to the load 3 of the output end of converter 12 and/or according to the power output of operation equipment come
Control circuit of power factor correction and/or converter 12.Control device 14 is configured to according to assessment especially voltage Vbus
Detecting load 3, the peak-peak voltage is provided by circuit of power factor correction 11 to the peak-peak voltage of ripple voltage
To converter 12.Control device 14 can control the operation to operation equipment according to the load for detecting.For example in order to want
Detection is loaded multiple for automatic detection LED or the attribute of another aspect automatic detection light-emitting device 3.
Fig. 2 is the circuit diagram of the operation equipment according to an embodiment.Operation equipment 2 generally has PFC
Circuit 20, the converter 30 located at 20 downstream of circuit of power factor correction and control device 14.Converter 30 especially can be real
It is now resonance converter.The alternating voltage of rectification can be conveyed to circuit of power factor correction 20 as input voltage vin
Input 19.The input voltage of operation equipment 2 is not necessarily the alternating voltage of rectification.For example rectifier 10 can be arranged as follows,
Make which to source voltage commutation and circuit of power factor correction 20 is supplied to as input voltage vin.
The circuit of power factor correction can be with booster converter topographical arrangement.
The alternating voltage Vin of rectification is transported to inductor or winding 21.By inductor 21 and circuit of power factor correction 20
Input interface and output end between diode 22 be connected in series.By the output end of circuit of power factor correction 20 and converter
30 input is connected and the voltage Vbus produced by circuit of power factor correction 20 is supplied to conversion as supply voltage
Device 30.
Circuit of power factor correction 20 has the charging capacitor 23 in its output end.Will be configured to power switch and can
To be for example configured to field-effect transistor (FET), especially the controllable electrical switches 24 of MOSFET are connected to inductor 21 and diode
Line between 22.Switch 24 can pass through (unshowned) current divider resistance eutral grounding.To be opened by the control device 14 of operation equipment 2
Close 24 and be switched on state and dissengaged positions.Control device 14 is borrowed with corresponding output end 52 to control PFC control signal
Help the output end for example can be with the grid voltage of controlling switch 24.
In the state of switch 24 is connected, inductor 21 is grounded by switch 24, wherein blocking diode 22 so that for electricity
Sensor 21 charges, and by electrical power storage in inductor 21.On the contrary, in roof-cut resistence 24, that is, when switching off, two poles
Pipe 22 is energized so that inductor 21 can discharge to charging capacitor 23 self by diode 22 and will be stored in inductor
Electric energy in 21 is transferred in charging capacitor 23.
By may be embodied as integrated circuit, especially the control device 14 of ASIC carrys out controlling switch 24.Will be by connecing repeatedly
Leading to and PFC process being realized with roof-cut resistence 24, the connection frequency of its breaker in middle 24 is much larger than rectified AC voltage
The frequency of Vin.
Converter 30 receives the supply voltage Vbus provided by circuit of power factor correction 20 in its output end.Converter 30
Electrolyte can be included, to realize the electric isolution between the non-SELV side of operation equipment 2 and the SELV side of operation equipment 2.Accordingly
Potential barrier 49 or SELV potential barrier 49 the non-SELV side of operation equipment 2 is isolated from the SELV side of operation equipment 2.
Converter 30 has with armature winding 34 and the transformer of secondary windings 36.Converter 30 can be real using slab bridge control
It is the LLC resonance converter comprising LLC resonance circuit to apply.The armature winding 34 of the transformer can also play LLC resonance circuit
Inductor effect.The LLC resonance circuit includes another inductor 33 and capacitor 35.With inductor 33,34 and electricity
The LLC resonance circuit of container 35 may be embodied as series resonant circuit.The less inductor 33 of the LLC resonance circuit also can quilt
It is integrated in transformer and can be, for example, the leakage inductance of armature winding 34.
Converter 30 operationally, primary side by half-bridge switch 31,32 clock switch controlling.Switch 31,32
Field-effect transistor (FETs) can be implemented as, be especially embodied as MOSFET.Control device 14 can result in the alternating of switch 31,32
Clock mode connect.Control to switch is realized as follows, i.e., always at most conducting switchs one in 31,32.Control dress
Put 14 and can control half-bridge under different working modes using switch 31,32.In the first operation mode, thus it is possible to vary switch
31st, 32 with respect to the resonant frequency of LLC resonance circuit connection frequency in case realize amplitude light modulation.In the second operation mode may be used
To control half-bridge as follows, i.e.,：Converter 30 is caused to operate in a pulsed fashion.Wherein two can be opened in certain duration
Close 31,32 and switch to off-state.Control device 14 can according to the load 3 detected at output end 41 and/or according to
The power output detected at the output end 41 of operation equipment 2 is automatically using corresponding mode of operation and/or running parameter.Such as will
As more detailed description, detection process is for example realized according to the peak-peak voltage of ripple voltage.Control device 14 is set
It is set to for producing control signal, the control signal can be via the first output end 53 coupled with first switch 31 and with second
Switch 32 the second output ends 54 for coupling to control.
Converter 30 has the primary side with transformer secondary output winding 36.The primary side can have band diode 37,38
Rectifier and the capacitor 39 positioned at rectifier output end.In addition can be in the 41 upstream grafting inductance of output end of converter 30
Device 40.The inductor 40 for example can be removed when converter 30 is manipulated into constant voltage source.
Load can be coupled with the output end 41 of converter, especially be switched on connection.Load 3 can include multiple luminous
Diode (LED).Load 3 as light-emitting device can include inorganic and/or organic LED.These LED can be as in figure
Connection in parallel as schematically showing in 2.But these LED of connection that can also connect, or can using series circuit and
The combination of parallel circuit.
Control device 14 is configured to automatic detection load 3 or the power output exported via output end 41.Now will be right
The time dependent voltage Vbus provided from circuit of power factor correction 20 to converter 30 as supply voltage is commented
Estimate, as will be described in more detail with reference to Fig. 3 to Fig. 6.Control device 14 can come automatically according to the load for detecting so that
The work of circuit of power factor correction 20 and/converter 30 is adapted with different working modes and/or running parameter.
Now a measured value will be conveyed to control device 14, control device 14 can obtain voltage using the measured value
Vbus.Control device 14 for example can obtain voltage by way of the divider with resistance 26,27 is with time resolution
Vbus, the voltage are supplied to converter 30 by circuit of power factor correction 20 as supply voltage.Can be by respective measurement values
A/D conversion is realized before the input for being transported to control device 14.
Waviness and ripple voltage in the voltage Vbus provided by circuit of power factor correction 20 can be expressed as：
I (t) herein be fill a capacitor with the electricity that the charging current of time oscillation and C are the charging capacitor
Hold.The ripple voltage that is drawn by the Section 1 on the right side of equation (1) has peak-peak voltage, equally when output end 41 and survey
When amount point is electrically isolated from, obtained at the voltage Vbus for control device 14 according to the load 3 at 30 output end 41 of converter
The peak-peak voltage.According to
P=VI=I2R=V2/R (2)
Power output at output end 41 is depending on load R.Correspondingly, the reduction of such as output current can for example cause electricity
The reduction of the peak-peak voltage of pressure ripple.
Fig. 3 is that the dependence of peak-peak voltage and load that the circuit described in Fig. 2 has been explicitly shown ripple voltage is closed
System.It is supported on more than ten times of change in described dependence.Such load change is, for example, the change of LED quantity, these
LED is powered by operation equipment.The change of LED quantity is also appeared in the course of work, such as due to the interruption of LED.
The change of load by the peak value of the ripple voltage in the voltage Vbus for causing to be provided by circuit of power factor correction 20-
The change of crest voltage.Peak-peak voltage described in Fig. 3 70 can for example as voltage in one cycle maximum
Difference between minimum of a value, i.e., obtain as voltage difference.
This load dependency relation of the peak-peak voltage 70 of the ripple voltage in voltage Vbus cause to load and/
The detection of power output depends on the assessment to ripple voltage, particularly depends between minimum of a value and the maximum of voltage Vbus
Voltage difference.
Control device 14 can use for example in figure 3 as described in the detection load of indicatrix, the feature is bent
Line represents the peak-peak voltage relationship of load and ripple voltage.Now can be for example using corresponding indicatrix.
Fig. 4 shows the process of the peak-peak voltage for determining ripple voltage.The alternating voltage 61 of rectification is fed to work(
Rate factor correcting circuit 20.The a cycle of non-rectified AC voltage is adapted to two cycles 62 of rectified AC voltage 61.When
During the time window in the cycle 62 for being equal to or more than rectified AC voltage in its length, circuit of power factor correction 20 is provided
Voltage Vbus is collected.The summation of collection value 65,66,67,68 can be assessed so as to determine ripple voltage 64 peak value-
Crest voltage 70.
Different evaluation processes can be adopted.In one embodiment, control device 14 determines and occurs in the cycle 62
The maximum 68 of collection value and a minimum of a value 67.Difference between maximum 68 and the minimum of a value 67 is used as
The standard of the peak-peak voltage of ripple voltage.
Complete treatment technology is feasible.For example control device can by sine curve fitting to collection value 65,66,
67th, 68, to determine the amplitude as in two adaptation parameters.
The example below has been explicitly shown effect of the control device 14 during load detecting.One expression voltage Vbus's
Measured value will be received in input by control device 14 or be obtained in measurement point.Can be in the way of being changed using A/D.According to
Collection value, can execute amplitude detection automatically.Wherein the amplitude of ripple voltage will be determined.Can using determined by amplitude examining
Survey load.The load for example can be determined by way of form inquiry.Can be using indicatrix according to the amplitude come really
Fixed load and/or power output.Alternatively, it is also feasible to replace form and for example assess the process of determination by algorithm.
Assessment determine or form inquiry during it is also contemplated that aging compensation about operation equipment 2.Can be, for example,
The operation equipment 2 of different degree of agings arranges different table value, and which is according to the aging using of operation equipment 2.Alternatively,
Can be in view of the compensation factor changed according to the aging of operation equipment 2 in assessment.When operation equipment 2 is aging, for example
The electric capacity that charging capacitor 23 changes can work, and wherein the change can be compensated for.
The control device 14 of operation equipment 2 can realize other functions.The control device of operation equipment 2 enables in particular to root
According to the load for detecting, i.e., PFC is automatically determined according to the peak-peak voltage of the bus voltage Vbus for determining
The mode of operation of circuit 20, the running parameter of circuit of power factor correction 20, the mode of operation of converter 30 and/or converter 30
Running parameter.
Fig. 5 shows the function of the control device 14 according to an embodiment in the way of functional block diagram.
Control device 14 can determine the voltage Vbus provided by circuit of power factor correction 20 with logical block 81
In ripple voltage peak-peak voltage.The logical block 81 can determine load using indicatrix.According to converter
The load of output end can adapt to different functions.
Control device 14 can select the mode of operation of circuit of power factor correction with function 82.Function 82 can root
The mode of operation of circuit of power factor correction is automatically selected according to the load for detecting.Function 82 can be according to the load choosing for detecting
Selecting should be with DCM (" discontinuous conduction mode ") work or continuously and by the continuous current of inductor, i.e., (" to be faced with BCM
Boundary's conduction mode " or " border conduction mode ") work and carry out operation power factor correcting circuit.If circuit of power factor correction
20 other mode of operations are feasible, then function 82 correspondingly selects one of mode of operation, such as CCM (" continuous conduction mould
Formula ") mode of operation.
Function 82 can also select the running parameter of circuit of power factor correction according to the load for detecting.For example, control
Device processed can adjust the power switch 24 of the circuit of power factor correction 20 when working with BCM according to the load for detecting
Turn-on time (" Ton " time).As an alternative or supplement, control device can be adjusted according to the load for detecting with DCM work
Stand-by period or most short stand-by period before the power switch 24 of circuit of power factor correction 20 is connected when making.
Control device 14 can carry out half-bridge control with function 85 to converter 30.Function 85 can be according to detecting
Load come select to operate with pulsed mode converter 30 (wherein the half-bridge of cut-out converter or full-bridge certain
Time period) converter 30, such as amplitude light modulation still should be operated with continuously-running duty.Function 85 can be according to detecting
Load determine running parameter, the connection frequency of the such as half-bridge switch of converter 30 for converter automatically.
Control device 14 can have other functions, be for example used for suppressing the function 83 of the aberration related to load and/or
Function 84, strength control or intensity for adjusting the light sent by light-emitting device 3 according to load are adjusted.Other can be realized
For according to load control and/or the function of adjustment circuit of power factor correction 20 and/or converter 30.
Control device 14 can be implemented as the operation according to the different functions of indicatrix adaptation by operation equipment
It is matched with the load and/or power output for detecting.It can be, for example, now the operation setting further feature song of operation equipment 2
Line, mode of operation and/or running parameter are provided as the function of loading.By the peak-peak voltage of ripple voltage and load
This feature curve for connecting and the indicatrix for connecting load with running parameter can also be combined.
The transfer process in other embodiment can be realized in the embodiment with reference to described by above-mentioned accompanying drawing.In example
The operation equipment can also be embodied as during the operation equipment provided as constant current source is such as provided in detail constant
Voltage source.
When the process of peak-peak voltage of detection voltage ripple is described by disparity map, it would however also be possible to employ other
Technology, such as via adaptation or by assessing the amplitude of voltage or ripple voltage by the peak-peak voltage of ripple voltage
Determine into adaptation parameter.
As the replacement using indicatrix or supplement, can be by the peak-peak voltage of ripple voltage also by letter
Number carries out calculating assessment to determine load and/or power output.
The inductor and capacitor of circuit of power factor correction and/or converter can be implemented as single inductance element
Or capacity cell.The lucky less inductor and capacitor of circuit of power factor correction and/or converter can also be embodied as
Parasitic inductor and capacitor parasitics.
Method and apparatus according to embodiment is can be used in the operation equipment for light-emitting device, is used for example in electronics
Ballast device is used in LED converter.
Claims (14)
1. for the operation equipment (2) of light-emitting device (3), which includes one kind
Circuit of power factor correction (20),
Converter (30), its are connected with the circuit of power factor correction (20), and are had for described light-emitting device (3) power supply
Output end (41), and
Control device (14), the control device have input (51), and the input is used for obtaining by the PFC
Circuit (20) is supplied to the voltage (Vbus) of the converter (30), wherein described control device (14) be configured to execute to institute
The assessment of the ripple voltage (64) of voltage (Vbus) is stated, and described with the converter (30) to determine according to the assessment
The load of output end (41) connected light-emitting device (3) and/or the power output of the converter (30),
Wherein, described control device (14) with function (82) with according to the load of the light-emitting device (3) to select
The mode of operation of circuit of power factor correction (20) is stated, and the mode of operation is discontinuous conduction mode, critical conduction mould
Formula or continuous conduction mode.
2. according to claim 1 to operation equipment (2),
Wherein described control device (14) be provided in the time period (62) during determine the collection value of the voltage (Vbus)
(65、66、67、68).
3. according to claim 2 to operation equipment (2), which includes
Rectifier (10), the rectifier couple and are arranged for rectification alternating current with the circuit of power factor correction (20)
Pressure, wherein described time period include at least one cycle of the alternating voltage.
4. operation equipment (2) according to Claims 2 or 3,
Wherein described control device (14) the maximum collection value being configured so that according to acquisition in the time period (62)
(68) the peak-peak voltage (70) between the minimum collection value (67) for and obtaining in the time period (62) is described to determine
Assessment.
5. according to claim 4 to operation equipment (2),
Wherein described control device (14) be configured to by form inquiry determined according to peak-peak voltage (70) with described
The load of the output end (41) connected light-emitting device (3) of converter (30).
6. according to claim 5 to operation equipment (2),
Wherein described control device (14) be configured to determine by the form inquiry described with the converter (30)
The quantity of the connected light emitting diode of output end (41).
7. according to claim 1 to operation equipment (2),
Wherein described converter (30) output end (41) is electrically insulated with the input of the converter (30), the conversion
The input of device (30) is connected to the circuit of power factor correction (20).
8. according to claim 7 to operation equipment (2),
Wherein described converter (30) it is implemented as LLC resonance converter.
9. according to claim 8 to operation equipment (2),
Wherein described control device (14) the half-bridge control for being arranged for the LLC resonance converter,
Wherein described control device (14) load and/or the converter being configured to according to the light-emitting device (3)
(30) the power output come adjust the half-bridge control.
10. according to claim 1 to operation equipment (2),
Wherein described control device (14) be configured to according to determined by the load of light-emitting device (3) and/or institute
State the power output of converter (30) to control the circuit of power factor correction (20) and/or the converter (30), so as to
The luminous intensity sent from the light-emitting device (3) is adjusted to rated value.
11. operation equipment (2) according to claim 1, the equipment are implemented as LED converter.
12. operation equipment (2) according to claim 1,
The operation equipment is implemented as the ballast equipment for discharge lamp.
The method of operating of 13. operation equipments (2) for being used for light-emitting device (3), wherein described operation equipment (2) including power factor
Correcting circuit (20) and converter (30), it is described that the converter is connected with the circuit of power factor correction (20) and has
The output end (41) that light-emitting device (3) is powered, wherein methods described includes：
The voltage (Vbus) provided to the converter (30) from the circuit of power factor correction (20) is provided,
The ripple voltage (64) of the voltage (Vbus) is assessed, and
According to connected described with the output end (41) of the converter (30) to determine to the assessment of the ripple voltage
The load of light-emitting device (3) and/or the power output of the converter (30),
Wherein, the Working mould of the circuit of power factor correction (20) is selected according to the load of the light-emitting device (3)
Formula, and the mode of operation is discontinuous conduction mode, critical conduction mode or continuous conduction mode.
14. methods according to claim 13,
The method is implemented by the operation equipment (2) any one of claim 1 to 12.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012007453.0 | 2012-04-13 | ||
| DE102012007453 | 2012-04-13 | ||
| DE102012014308A DE102012014308A1 (en) | 2012-04-13 | 2012-07-19 | Operating device for a lamp and method for operating a control gear |
| DE102012014308.7 | 2012-07-19 | ||
| PCT/AT2013/000071 WO2013152373A1 (en) | 2012-04-13 | 2013-04-15 | Operating device for an illuminant and method for operating an operating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104412707A CN104412707A (en) | 2015-03-11 |
| CN104412707B true CN104412707B (en) | 2017-03-08 |
Family
ID=49232029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380019677.3A Expired - Fee Related CN104412707B (en) | 2012-04-13 | 2013-04-15 | The method of operating of operation equipment and operation equipment for light-emitting device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2837261B1 (en) |
| CN (1) | CN104412707B (en) |
| DE (1) | DE102012014308A1 (en) |
| WO (1) | WO2013152373A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013222892B4 (en) | 2013-11-11 | 2024-05-16 | Tridonic Gmbh & Co Kg | LED converter and method for controlling a converter circuit of an LED converter |
| DE102015207433A1 (en) * | 2015-04-23 | 2016-11-10 | Tridonic Gmbh & Co Kg | Operating circuit, luminaire and method for detecting a control signal |
| WO2020082324A1 (en) * | 2018-10-26 | 2020-04-30 | Tridonic Gmbh & Co Kg | Method and apparatus of adjusting parameter for electrical device |
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| US6700335B2 (en) * | 2001-09-28 | 2004-03-02 | Osram Sylavania, Inc. | Method and circuit for regulating power in a high pressure discharge lamp |
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| EP1881745B1 (en) | 2006-07-20 | 2010-04-14 | STMicroelectronics Srl | Process for recognizing the supply power of discharge lamps and related device |
| DE102010031247A1 (en) * | 2010-03-19 | 2011-09-22 | Tridonic Ag | Low voltage power supply for a LED lighting system |
-
2012
- 2012-07-19 DE DE102012014308A patent/DE102012014308A1/en not_active Withdrawn
-
2013
- 2013-04-15 EP EP13725049.4A patent/EP2837261B1/en active Active
- 2013-04-15 WO PCT/AT2013/000071 patent/WO2013152373A1/en active Application Filing
- 2013-04-15 CN CN201380019677.3A patent/CN104412707B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6700335B2 (en) * | 2001-09-28 | 2004-03-02 | Osram Sylavania, Inc. | Method and circuit for regulating power in a high pressure discharge lamp |
| US7759881B1 (en) * | 2008-03-31 | 2010-07-20 | Cirrus Logic, Inc. | LED lighting system with a multiple mode current control dimming strategy |
| CN102067734A (en) * | 2008-06-06 | 2011-05-18 | 赤多尼科两合股份有限公司 | Lamp type detection by means of power factor correction circuit |
| CN201557292U (en) * | 2009-10-01 | 2010-08-18 | 英飞特电子（杭州）有限公司 | High efficiency constant current LED driver |
| CN201533427U (en) * | 2009-11-24 | 2010-07-21 | 浙江摩根电子科技有限公司 | LLC self-excited half-bridge resonant LED driver |
| DE102010031239A1 (en) * | 2010-03-19 | 2011-09-22 | Tridonic Ag | LED control with clocked constant current source |
| CN201789664U (en) * | 2010-08-20 | 2011-04-06 | 深圳市雅玛西电子有限公司 | Half-bridge LLC resonance LED power supply |
| CN101932175A (en) * | 2010-08-31 | 2010-12-29 | 电子科技大学 | A lighting LED constant current drive circuit with automatic dimming function |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2837261B1 (en) | 2018-10-10 |
| DE102012014308A1 (en) | 2013-10-17 |
| CN104412707A (en) | 2015-03-11 |
| EP2837261A1 (en) | 2015-02-18 |
| WO2013152373A1 (en) | 2013-10-17 |
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