CN102948263B - Circuit arrangement for operating discharge lamp - Google Patents
Circuit arrangement for operating discharge lamp Download PDFInfo
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- CN102948263B CN102948263B CN201180026751.5A CN201180026751A CN102948263B CN 102948263 B CN102948263 B CN 102948263B CN 201180026751 A CN201180026751 A CN 201180026751A CN 102948263 B CN102948263 B CN 102948263B
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- circuit arrangement
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- control device
- discharge lamp
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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
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
-
- 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
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
- H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
- H05B41/2981—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
- H05B41/2985—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions
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- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The invention relates to a circuit arrangement for operating a discharge lamp (FL). The coils (Wh, Wc) of the lamp are heated using a conductor (TR1). In order to identify the lamp, one coil of the conductor is bridged by a resistor (R5).
Description
Technical field
The present invention relates to a kind of circuit arrangement for running discharge lamp, it comprises: for the first port of being connected with power supply direct voltage and the second port; There is the inverter of bridgt circuit, this bridgt circuit comprises at least the first electronic switch and the second electronic switch, wherein, the first bridge joint mid point is provided with between the first electronic switch and the second electronic switch, wherein, the series circuit be made up of the first electronic switch and the second electronic switch is connected to between the first port of power supply direct voltage and the second port; For controlling the control device of at least the first electronic switch and the second electronic switch; For the first port of being connected with the hot filament of discharge lamp and the second port; Have the inductor of the first port and the second port, wherein, the first port of inductor is connected with the first bridge joint mid point, and wherein, the second port of inductor is connected with the first port of the hot filament for discharge lamp; Have the first capacitor of the first port and the second port, wherein, the first port is connected with the first port for hot filament, and wherein, the second port is connected with reference potential; For the first and second ports be connected with the cold filament of discharge lamp; Have the second capacitor of the first port and the second port, wherein, the first port is connected with cold filament, and wherein, the second port is connected with reference potential; Be connected to the first voltage divider between cold filament and reference potential, wherein, the first voltage divider comprises the first Ohmic resistance and the second Ohmic resistance, and wherein, the tap of voltage divider is connected with the first input end of control device; Have the preheating apparatus of armature winding and at least one the first secondary winding, wherein, first level winding switching is between first port and the second port of the cold filament for discharge lamp; With the 3rd capacitor of first level windings in series of preheating apparatus; With the series circuit be made up of at least one the 3rd Ohmic resistance and the 4th Ohmic resistance, wherein, this series circuit is connected to between the first port of power supply direct voltage and the second port, wherein, the node between the 3rd Ohmic resistance and the 4th Ohmic resistance is connected with the cold filament of discharge lamp.
Background technology
The present invention based on difficult point be, the electric ballast for discharge lamp can produce very high keep-alive voltage substantially when it is lighted.For avoiding the harm of operating personnel to discharge lamp or surrounding enviroment, before trial is lighted in enforcement, detecting light fixture by several electric ballast whether be connected with the output of electric ballast.For this reason, electric ballast detects the cold end that whether there is cold filament or light fixture usually.Following design relates to that have pressure swing type filament heating device, that price is high electric ballast.At this, in order to preheat or use independently heating transformer, or design adds winding on light fixture choke.
In order to the present invention based on difficult point be described in detail and schematically show more significant for the present invention local circuit in published circuit arrangement scheme in FIG.
Variant shown in Fig. 1 a to 1d shows has hot filament W
hwith cold filament W
cdischarge lamp Fl.What " hot filament " this concept represented within the framework of the invention is the filament be connected with the first bridge joint mid point, and " cold filament " this representation of concept is the filament be connected with reference potential.The port for hot filament of electric ballast represents with A1 and A2, and the port for cold filament represents with A3 and A4.Unshowned heating transformer for heat filament W
csecondary winding represent with SEK1.
According in the variant of Fig. 1 a and Fig. 1 b, the cold filament W of discharge lamp Fl
cbe ground-be connected with reference potential-current.Simple measuring route enables control device μ C judge filament W
cwhether exist.For this reason, the port A3 for cold filament is connected with auxiliary voltage source UH by the voltage divider comprising Ohmic resistance R3 with R4.The tap of voltage divider is connected with the input of control device μ C.For preventing electric current from flowing to reference potential from auxiliary voltage source UH by secondary winding SEK1, be necessary to disconnect filament W
cwith the connection of secondary winding SEK1.This can be realized by the resolution element of connecting with secondary winding SEK1.According in the variant of Fig. 1 a, resolution element is capacitor C
s, and according in the variant of Fig. 1 b, resolution element is then diode D1.
All there is this shortcoming in two variants, by by filament W
cdirectly be connected with reference potential, misroute may cause the damage of electric ballast or discharge lamp.In addition, also there is another shortcoming in the variant according to Fig. 1 b, because diode only allows the half-wave of heating current to pass through, and causes thus: first, at filament W
con must have higher voltage, thus add the danger of traverse electricity; Secondly, in single lamp device, namely in the electric ballast for running single discharge lamp, do not reoffer symmetrical transformer heating.Particularly for the electric ballast with light identifier, the latter does not possess any advantage.But can by additional, with hot filament W
hsecond diode of series connection is set up symmetrical.But these diodes are sufficiently withstand voltage and enough fast, thus also can withstand the load of the keep-alive voltage of short time when lamp breaks down.
In the variant shown in Fig. 1 c and 1d, filament W
cdirectly be not connected with reference potential.To this, alternatively between discharge lamp Fl and reference potential, access connects capacitor C
k1.As compared to the variant shown in Fig. 1 a with 1b, relative to wiring error, there is larger stability thus.But now no longer there is filament W
cto the direct connection of reference potential.In order to set up measuring route, for cold filament W
cport A4 by Ohmic resistance R8 be generally intermediate circuit voltage U
zWpower supply direct voltage connect.For resistor R8 to be designed to high ohm by protecting control device μ C.But, at connection capacitor C
k1on voltage depend on moment running status and intermediate circuit voltage U can be reached from 0V
zWmaximum, such as 400V.
Thus the shortcoming of the variant shown in Fig. 1 c and 1d is, is capacitor C in figure 1 c
smust be higher with the compressive resistance of the resolution element being diode D1 in Fig. 1 d.
For being designed to run the electric ballast of the dissimilar discharge lamp be connected on its output port, namely for identifying the electric ballast of such as type that is applied, that be connected to the discharge lamp on its filament resistor, capacitor C
shigh electric capacity must be had, thus make to ignore its impact when carrying out type identification.Particularly when compressive resistance must very high time, this will cause device to have great structure.In order to can to filament W
ccapacitor C is ignored when preheating
son the reduction of voltage, equally also must have very large electric capacity.The second capacitor alternatively can be accessed to re-establish symmetry in the heater circuit of hot filament.
To carry out the operation circuit of the low-pressure discharge lamp of EOL-EARLY RECOGNITION device open by EP1343359A2 relating to the direct voltage between a kind of electrode for having by measuring low-pressure discharge lamp for other present situation of this technology.At this, electrode inquiry can be carried out by detecting each connection arriving each reference potential through each electrode.
Summary of the invention
Therefore, the object of the invention is to, improve the circuit arrangement described in beginning like this, that is: on the one hand, carry out the necessary parts of reliable Detection only need installing space little as far as possible for whether being connected with electric ballast discharge lamp; On the other hand, this circuit arrangement can be used in the electric ballast with filament recognition device, and the identification of filament can not be had influence on simultaneously.
The present invention is realized by a kind of circuit arrangement for running discharge lamp, and it comprises:
-for the first port of being connected with power supply direct voltage and the second port;
-there is the inverter of bridge circuit, described bridge circuit comprises at least one first electronic switch and the second electronic switch, wherein, the first bridge joint mid point is formed between described first electronic switch and described second electronic switch, wherein, the series circuit be made up of described first electronic switch and described second electronic switch is connected to between described first port of described power supply direct voltage and the second port;
-for controlling the control device of at least described first electronic switch and described second electronic switch;
-for the first port of being connected with the hot filament of described discharge lamp and the second port;
-there is the inductor of the first port and the second port, wherein, described first port of described inductor is connected with described first bridge joint mid point, and wherein, the second port of described inductor is connected with described first port of the hot filament for described discharge lamp;
-there is the first capacitor of the first port and the second port, wherein, described first port is connected with described first port for described hot filament, and wherein, described second port is connected with described reference potential;
-for the first port of being connected with the cold filament of described discharge lamp and the second port;
-there is the second capacitor of the first port and the second port, wherein, described first port is connected with described cold filament, and wherein, described second port is connected with described reference potential;
-be connected to the first voltage divider between described cold filament and described reference potential, wherein, described first voltage divider comprises the first Ohmic resistance and the second Ohmic resistance, and wherein, the tap of described voltage divider is connected with the first input end of described control device;
-there is the preheating apparatus of armature winding and at least one the first secondary winding, wherein, described first level winding switching is between described first port and the second port of the described cold filament for described discharge lamp;
-with the 3rd capacitor of described first level windings in series of described preheating apparatus; With
-the series circuit that is made up of at least one the 3rd Ohmic resistance and the 4th Ohmic resistance, wherein, described series circuit is connected to between the first port of described power supply direct voltage and the second port, wherein, the node between described 3rd Ohmic resistance and the 4th Ohmic resistance is connected with the described cold filament of described discharge lamp;
It is characterized in that, described circuit arrangement comprises in addition:
-five Ohmic resistance, the series circuit that described 5th Ohmic resistance is formed with by described first secondary winding and described 3rd capacitor is in parallel.
The present invention, based on this understanding, namely in order to identify filament, must have higher electric capacity with the capacitor of secondary winding SEK1 arranged in series in addition.But if define the maximum voltage be applied on this capacitor, it then can realize with small-sized make.Only need the Ohmic resistance that is small-sized for this reason, this Ohmic resistance with by the first secondary winding and capacitor C
sthe series circuit formed is in parallel.At this, this Ohmic resistance can be designed to SMD-parts.The additional installing space needed for Ohmic resistance only accounts for capacitor C
sby the sub-fraction in space of occupying, this capacitor has high capacitance and is designed to high voltage withstanding.In addition, the identification to filament can also be carried out based on the high capacitance of capacitor.Because the size of capacitor is less, can make the desired value that there is the less installing space of necessary structure element for identification discharge lamp is minimized.Also impact of the present invention can not be subject on preheating of (multiple) filament.
Advantage is preferred embodiment, circuit arrangement comprises second voltage divider with the 6th Ohmic resistance and the 7th Ohmic resistance in addition, wherein, second voltage divider is connected between the first and second ports for power supply direct voltage, wherein, the tap of the second voltage divider is connected with the input of control device.Thus the size of current power direct voltage can be determined by means of this voltage divider.This processing mode take into account this situation, namely-such as limiting voltage on the capacitor until can use 63 volts of capacitors-on the input of microprocessor variation only initial measurement signal, voltage namely when not using the 5th Ohmic resistance on the input of microprocessor 5 to 10% scope in.But; due to the time point of the signal on the first input end of detection control apparatus; circuit part for power factor correction (PFC=Power Factor Correction) is not also started working usually, and therefore intermediate circuit voltage, i.e. power supply direct voltage can be set as the value between 150V to 400V.Because power factor correction is usually at discovery filament W
cjust be activated afterwards.Under these conditions, assess 5 to 10% variation may very difficult-when by capacitor C
scompressive resistance when being chosen as very high-, and-as preferably, when by capacitor C
scompressive resistance when being chosen as low as far as possible-completely impossible.Therefore, according to this preferred embodiment, the currency of the time point determination power supply direct voltage of the signal on the first input end of detection control apparatus.
Preferably control device is designed further like this, be namely formed in the difference between voltage on the second input and voltage on a first input.Loaded down with trivial details division can be avoided by the formation of this difference.But the proportionate relationship between the voltage alternately also can assessed on the second input and voltage on a first input, but this requires the with better function of control device.
Control device is design so further preferably, even if difference meets the standard of the voltage on first input end or the voltage on the second input.Reach such effect equally by this standardization, namely can reduce the requirement of the computing function for control device.
In order to simplify evaluation process, particularly in order to avoid the differentiation to different situations, the first voltage divider and the second voltage divider preferably determine size like this, and namely difference is always positive number.
At large control device is preferably designed like this, before offering activation preheating apparatus, namely carry out the calculating of mentioned difference.Particularly preferably such design con-trol device, namely after connecting one after circuit arrangement default time period, is 50 to 200ms especially, is preferably 100ms, carry out the formation of difference.Control device if discharge lamp is such as removed when continuous service, also can not form the extra stand-by period, because after connection electric ballast, will reach the time that normal operation also needs to determine after all.This processing mode take into account this situation, namely due to the resistance of high ohm of circuit arrangement, particularly the 3rd Ohmic resistance and the 4th Ohmic resistance, and capacitor C
shigh capacitance, after about 100ms, just there is reliable signal in the first input end of control device.
According to preferred embodiment, control device designs like this, compares, if this standardized difference is greater than the threshold value that can preset, then do not carry out the output preheating signal by standardized difference and the threshold value that can preset.This measure has this advantage, that is: in order to take into account consideration component tolerance, such as, in the framework corrected circuit arrangement, the threshold value that can preset to change.
First capacitor preferably has such compressive resistance, namely its maximum power supply direct voltage to be connected between the first and second ports 1/1 to five/10th between.Practice shows, this scope is the optimal trade-off between installing space size and compressive resistance height.
Preheating apparatus preferably includes second subprime winding, and wherein, this second subprime winding switching is between the first and second ports for the hot filament in discharge lamp.This makes the symmetry of two of discharge lamp filaments preheat becomes possibility.
The same as already mentioned, preheating apparatus realizes by independently heating conveyer.Alternative is, inductor is the armature winding of preheating apparatus.Device in a circuit according to the invention can be realized with particularly advantageous cost advantage thus when only needing minimum installing space.
Other is preferred embodiment described in appurtenance.
Accompanying drawing explanation
Explain embodiments of the invention hereinafter with reference to accompanying drawing now.Shown in figure:
Fig. 1 is a) to 1d) schematically show fragment according to the schematic diagram in prior art, published circuit arrangement, and
Fig. 2 schematically shows the embodiment of device in a circuit according to the invention.
Embodiment
As long as relate to identical or play the element of phase same-action, embodiment that the reference number so adopted in Fig. 1 a to 1d is also applicable to schematically show in fig. 2 further, device in a circuit according to the invention.Therefore can not again be described parts.
Shown in figure 2, in a circuit according to the invention the embodiment of device there is first input end port E1 for being connected with power supply direct voltage and the second input port E2, this power supply direct voltage is a kind of so-called intermediate circuit voltage U in particular
zW.First between input port E1 and E2, electrolytic capacitor C1 is accessed, to ensure U
zWstable.The voltage divider comprising Ohmic resistance R1 and R2 is in parallel with capacitor C1.The tap of voltage divider R1, R2, i.e. voltage U R2, be connected with the input E2 of control device μ C.In addition, inverter is connected between input E1 and E2, and this inverter realizes with half-bridge circuit in the present invention.Wherein, this half-bridge circuit comprises the first electronic switch S1 and the second electronic switch S2, and these two electronic switches are connected between input E1 and E2 when formation the first half-bridge mid point BM.
Control device μ C is designed to-with the switch S 1, S2 of published mode-control inverter itself.Inductor L1 mono-aspect is connected with the first half-bridge mid point BM, is connected on the other hand with output port A1.For realizing being used for filament W
hand W
cpreheating apparatus, the first half-bridge mid point BM and current be the second output E2 of circuit arrangement reference potential between access the series circuit be made up of the armature winding PR of the second capacitor C2, heating transformer TR1 and switch S H, wherein, switch S H is controlled by control device μ C equally.Heating transformer TR1 has the first secondary winding SEK1 and second subprime winding SEK2.First secondary winding SEK1 and capacitor C
sseries connection, wherein, this series circuit and cold filament W
cin parallel.Second subprime winding SEK2 and hot filament W
hin parallel.
The same as has been mentioned, port A1, A2 arrange the hot filament W being used for discharge lamp Fl
h, and port A3, A4 arrange the cold filament W being used for discharge lamp Fl
c.Light capacitor C
zin parallel with discharge lamp F1, be exactly in parallel between port A1 and reference potential.This lights capacitor design for realizing resonant circuit together with inductor L1, and this resonant circuit can light discharge lamp F1.
Port A4 is connected with the tap of voltage divider, and this voltage divider comprises Ohmic resistance R7 and R8 of high ohm.Therefore the third and fourth Ohmic resistance is designed to high ohm, thus can ignore consequent loss.Can be cold filament W on the path
cvoltage is provided to supply, so that by another tap comprising the voltage divider of Ohmic resistance R3 and R4 for control device μ C provides measuring-signal U on its input E1
mess.Connect capacitor C
k1in parallel with voltage divider R3, R4.According to the present invention, Ohmic resistance R5 with by the first secondary winding SEK1 and capacitor C
sthe series circuit formed is in parallel.This Ohmic resistance is preferably designed to SMD-parts and determines its size like this, namely must by capacitor C
scompressive resistance be designed to be only intermediary circuit current U
zW1/10 to ten/5th.
When intermediary circuit current is about 400V, electric capacity C
spreferably be set to 63V.Ohmic resistance R5, preferably between 50 to 100k Ω, is 82k Ω in the especially preferred embodiments.Control device μ C designs, so namely as far back as intermediary circuit current U
zWbe applied to the input E1 of circuit arrangement, after E2 is upper, 100ms measures and assesses signal U
r2and U
mess.
Capacitor C
selectric capacity be preferably 0.1 μ F to 10 μ F, be 1 μ F in the especially preferred embodiments especially.
Control device μ C is so designed, i.e. coating-forming voltage U
r2and U
messbetween difference and make this difference conform with voltage U
r2standard.This difference is so designed further, compares, and if this standardized difference is greater than the threshold value that can preset, so for avoiding preheating and cut-off switch SH discharge lamp F1 by this standardized difference and the threshold value that can preset.In order to consider component tolerance, the threshold value that can preset be stored in control device μ C can be changed when calibrating circuit arrangement.
Claims (18)
1., for running a circuit arrangement for discharge lamp, comprising:
-for power supply direct voltage (U
zW) the first port (E1) of connecting and the second port (E2);
-there is the inverter of bridge circuit, described bridge circuit comprises at least one first electronic switch (S1) and the second electronic switch (S2), wherein, the first bridge joint mid point (BM) is formed between described first electronic switch (S1) and described second electronic switch (S2), wherein, the series circuit be made up of described first electronic switch (S1) and described second electronic switch (S2) is connected to for described power supply direct voltage (U
zW) described first port (E1) and the second port (E2) between;
-for controlling the control device (μ C) of at least described first electronic switch (S1) and described second electronic switch (S2);
-for the hot filament (W with described discharge lamp (FL)
h) the first port (A1) of connecting and the second port (A2);
-there is the inductor (L1) of the first port and the second port, wherein, described first port of described inductor (L1) is connected with described first bridge joint mid point (BM), wherein, the second port of described inductor (L1) and the hot filament (W for described discharge lamp (FL)
h) described first port (A1) connect;
-there is the first capacitor (C of the first port and the second port
z), wherein, described first port with for described hot filament (W
h) described first port (A1) connect, wherein, described second port is connected with reference potential;
-for the cold filament (W with described discharge lamp (FL)
c) the first port (A3) of connecting and the second port (A4);
-there is the second capacitor (C of the first port and the second port
k1), wherein, described first port and described cold filament (W
c) connect, wherein, described second port is connected with described reference potential;
-be connected to described cold filament (W
c) and described reference potential between the first voltage divider (R3, R4), wherein, described first voltage divider (R3, R4) the first Ohmic resistance (R3) and the second Ohmic resistance (R4) is comprised, wherein, the tap of described voltage divider (R3, R4) is connected with the first input end of described control device (μ C);
-there is the preheating apparatus of armature winding and at least one the first secondary winding (SEK1), wherein, described first secondary winding (SEK1) is connected to the described cold filament (W for described discharge lamp (FL)
c) described first port (A3) and the second port (A4) between;
-the 3rd capacitor (C that connects with described first secondary winding (SEK1) of described preheating apparatus
s); With
-the series circuit that is made up of at least one the 3rd Ohmic resistance (R7) and the 4th Ohmic resistance (R8), wherein, described series circuit is connected to for described power supply direct voltage (U
zW) the first port (E1) and the second port (E2) between, wherein, the node between described 3rd Ohmic resistance (R7) and the 4th Ohmic resistance (R8) and the described cold filament (W of described discharge lamp (FL)
c) connect;
It is characterized in that, described circuit arrangement comprises in addition:
-five Ohmic resistance (R5), described 5th Ohmic resistance with by described first secondary winding (SEK1) and described 3rd capacitor (C
s) series circuit that forms is in parallel,
Described circuit arrangement comprises the second voltage divider (R1 with the 6th Ohmic resistance (R1) and the 7th Ohmic resistance (R2) in addition, R2), wherein, described second voltage divider (R1, R2) is connected to for described power supply direct voltage (U
zW) described first port (E1) and described second port (E2) between, wherein, the tap of described second voltage divider (R1, R2) is connected with the second input of described control device (μ C).
2. circuit arrangement according to claim 1, is characterized in that, described control device (μ C) is so designed, and namely forms the difference between the voltage on described second input and the voltage on described first input end.
3. circuit arrangement according to claim 2, it is characterized in that, described control device (μ C) is designed further like this, even if described difference meets the standard of the voltage on described first input end or the voltage on the second input described in person.
4. the circuit arrangement according to any one in claim 1-3, is characterized in that, its size determined like this by described first voltage divider and the second voltage divider, makes described difference just be always.
5. the circuit arrangement according to Claims 2 or 3, is characterized in that, described control device (μ C), by design so further, namely carried out the formation of described difference before starting to activate described preheating apparatus.
6. circuit arrangement according to claim 4, is characterized in that, described control device (μ C), by design so further, namely carried out the formation of described difference before starting to activate described preheating apparatus.
7. circuit arrangement according to claim 5, it is characterized in that, described control device (μ C) is so designed, namely connect the time period that can preset after described circuit arrangement, be especially 50 to 200ms, be preferably the formation that 100ms carries out difference.
8. circuit arrangement according to claim 6, is characterized in that, described control device (μ C) is so designed, and is namely connecting the time period that can preset after described circuit arrangement and carry out the formation of difference.
9. the circuit arrangement according to Claims 2 or 3, it is characterized in that, described control device (μ C) is so designed, compare by standardized difference and the threshold value that can preset, if described standardized difference is greater than the threshold value that can preset, then do not carry out the output preheating signal.
10. circuit arrangement according to claim 8, it is characterized in that, described control device (μ C) is so designed, compare by standardized difference and the threshold value that can preset, if described standardized difference is greater than the threshold value that can preset, then do not carry out the output preheating signal.
11. circuit arrangements according to claim 9, is characterized in that, the described threshold value that can preset to change, particularly can enable default changes of threshold by carrying out calibration to circuit arrangement.
12. circuit arrangements according to claim 10, is characterized in that, the described threshold value that can preset to change, particularly can enable default changes of threshold by carrying out calibration to circuit arrangement.
13. circuit arrangements according to any one in claim 1-3, is characterized in that, described first capacitor (C
s) there is compressive resistance, described compressive resistance is between the maximum power supply direct voltage (U between described first port (E1) and described second port (E2) to be connected
zW) 1/1 to five/10th between.
14. circuit arrangements according to claim 12, is characterized in that, described first capacitor (C
s) there is compressive resistance, described compressive resistance is between the maximum power supply direct voltage (U between described first port (E1) and described second port (E2) to be connected
zW) 1/1 to five/10th between.
15. circuit arrangements according to any one in claim 1-3, it is characterized in that, described preheating apparatus comprises second subprime winding (SEK2), wherein, described second subprime winding (SEK2) is connected to the hot filament (W for described discharge lamp (FL)
h) described first port (A1) and described second port (A2) between.
16. circuit arrangements according to claim 14, it is characterized in that, described preheating apparatus comprises second subprime winding (SEK2), and wherein, described second subprime winding (SEK2) is connected to the hot filament (W for described discharge lamp (FL)
h) described first port (A1) and described second port (A2) between.
17. circuit arrangements according to any one in claim 1-3, it is characterized in that, described inductor (L1) is the armature winding of described preheating apparatus.
18. circuit arrangements according to claim 16, is characterized in that, described inductor (L1) is the armature winding of described preheating apparatus.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201010029511 DE102010029511B4 (en) | 2010-05-31 | 2010-05-31 | Circuit arrangement for operating a discharge lamp |
| DE102010029511.6 | 2010-05-31 | ||
| PCT/EP2011/056277 WO2011151107A1 (en) | 2010-05-31 | 2011-04-19 | Circuit arrangement for operating a discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102948263A CN102948263A (en) | 2013-02-27 |
| CN102948263B true CN102948263B (en) | 2015-05-20 |
Family
ID=44483895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180026751.5A Expired - Fee Related CN102948263B (en) | 2010-05-31 | 2011-04-19 | Circuit arrangement for operating discharge lamp |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN102948263B (en) |
| AT (1) | AT518402B1 (en) |
| DE (1) | DE102010029511B4 (en) |
| FI (1) | FI124725B (en) |
| WO (1) | WO2011151107A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5920155A (en) * | 1996-10-28 | 1999-07-06 | Matsushita Electric Works, Ltd. | Electronic ballast for discharge lamps |
| US5959408A (en) * | 1997-08-07 | 1999-09-28 | Magnetek, Inc. | Symmetry control circuit for pre-heating in electronic ballasts |
| US20030076055A1 (en) * | 2001-10-18 | 2003-04-24 | Hooijer Christofher Daniel Charles | Short circuit ballast protection |
| US20080278080A1 (en) * | 2007-05-11 | 2008-11-13 | Osram Sylvania, Inc. | Ballast With Filament Heating And Ignition Control |
| WO2009158330A2 (en) * | 2008-06-26 | 2009-12-30 | Osram Sylvania, Inc. | Ballast with lamp filament detection |
| CN101682974A (en) * | 2007-04-04 | 2010-03-24 | 赤多尼科阿特可两合股份有限公司 | Circuit for coil heating |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1103166B1 (en) * | 1999-05-25 | 2003-07-16 | TridonicAtco GmbH & Co. KG | Electronic ballast for at least one low-pressure discharge lamp |
| DE10209620A1 (en) | 2002-03-05 | 2003-09-25 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | EOL detection with integrated helix interrogation |
-
2010
- 2010-05-31 DE DE201010029511 patent/DE102010029511B4/en not_active Expired - Fee Related
-
2011
- 2011-04-19 AT ATA9110/2011A patent/AT518402B1/en not_active IP Right Cessation
- 2011-04-19 CN CN201180026751.5A patent/CN102948263B/en not_active Expired - Fee Related
- 2011-04-19 WO PCT/EP2011/056277 patent/WO2011151107A1/en active Application Filing
-
2012
- 2012-12-18 FI FI20126324A patent/FI124725B/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5920155A (en) * | 1996-10-28 | 1999-07-06 | Matsushita Electric Works, Ltd. | Electronic ballast for discharge lamps |
| US5959408A (en) * | 1997-08-07 | 1999-09-28 | Magnetek, Inc. | Symmetry control circuit for pre-heating in electronic ballasts |
| US20030076055A1 (en) * | 2001-10-18 | 2003-04-24 | Hooijer Christofher Daniel Charles | Short circuit ballast protection |
| CN101682974A (en) * | 2007-04-04 | 2010-03-24 | 赤多尼科阿特可两合股份有限公司 | Circuit for coil heating |
| US20080278080A1 (en) * | 2007-05-11 | 2008-11-13 | Osram Sylvania, Inc. | Ballast With Filament Heating And Ignition Control |
| WO2009158330A2 (en) * | 2008-06-26 | 2009-12-30 | Osram Sylvania, Inc. | Ballast with lamp filament detection |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011151107A1 (en) | 2011-12-08 |
| AT518402B1 (en) | 2017-10-15 |
| FI20126324A (en) | 2012-12-18 |
| DE102010029511B4 (en) | 2014-10-09 |
| FI124725B (en) | 2014-12-31 |
| AT518402A5 (en) | 2017-10-15 |
| CN102948263A (en) | 2013-02-27 |
| DE102010029511A1 (en) | 2011-12-01 |
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