CN101112127B - Switch arrangement for a starting unit of a discharge lamp - Google Patents
Switch arrangement for a starting unit of a discharge lamp Download PDFInfo
- Publication number
- CN101112127B CN101112127B CN2005800471899A CN200580047189A CN101112127B CN 101112127 B CN101112127 B CN 101112127B CN 2005800471899 A CN2005800471899 A CN 2005800471899A CN 200580047189 A CN200580047189 A CN 200580047189A CN 101112127 B CN101112127 B CN 101112127B
- Authority
- CN
- China
- Prior art keywords
- igniter
- switch
- construction
- circuit
- discharge lamp
- 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.)
- Expired - Fee Related
Links
Images
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
- H05B41/288—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 without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
- H05B41/2881—Load circuits; Control thereof
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
A circuit for a discharge lamp igniter comprises a spark gap (10) having at least three electrodes (11) connected to the primary of a superposed transformer with a pulse capacitor (9) in series. The cylindrical electrodes are adjacent and parallel and a multistage spark air gap is formed perpendicular to the cylinder axes. An independent claim is also included for an igniter as above.
Description
Technical field
The present invention relates to the construction of switch of the igniter of discharge lamp, this construction of switch comprises the gap that is formed and connected with the elementary winding and the surge capacitor of folded formula transformer by three or more electrodes.
In addition, the present invention relates to have the igniter of the high-pressure discharge lamp of ignition pulse generator, this ignition pulse generator comprises: by surge capacitor, the elementary winding of folded formula transformer and the firing circuit that switch element forms; And be used for high pressure generator to surge capacitor charging.
Background technology
Known, discharge lamp carries out for example ballast of core-type reactor form of need of work.In addition, also need igniter, this igniter produces and is used for the high-voltage pulse of turn-on lamp, and causes the ionization of the admixture of gas that exists in lamp by this high-voltage pulse.
The igniter of discharge lamp is carried out work according to the so-called principle of stacking similar to Tesla transformer usually.Known igniter comprises the ignition pulse generator that is used to produce the required voltage pulse.Ignition pulse generator comprises firing circuit, and this firing circuit is made up of the elementary winding and the switch element of surge capacitor, folded formula transformer.Surge capacitor must be filled with high pressure to realize the required voltage of firing pulse.For the igniter of prior art, realize this purpose by the high pressure generator of ignition pulse generator.High pressure generator is worked under the assistance of transformer usually to produce the required high pressure of charging from available line voltage.During ignition process, the surge capacitor through charging is along with periodically connecting and cut off the elementary winding periodic discharge of switch element by folded formula transformer.Under on-state, the elementary winding of surge capacitor and folded formula transformer has formed high-frequency circuit.This high-frequency resonant is become liter (transform-up) and be can be used as the ignition voltage of lamp in folded the formula transformer and secondary winding that lamp links to each other.
For the igniter of prior art, be gap through what be commonly used for switch element.Gap is lighted a fire when surge capacitor is charged to specific startup (connection) voltage.Gap continues conduction, is discharged to specific cut-out voltage up to surge capacitor by the elementary winding of folding the formula transformer.
Owing to flow in firing circuit when making the surge capacitor discharge high electric current is arranged, ionized gas is heated to the degree that stops deionization in gap.Thus, before gap cuts off, to spend undesirable long-time.Produce such effect relatively long deionization time: only can produce the relatively low firing pulse of frequency.But igniter for the thermal ignition that will be suitable for high-pressure discharge lamp, especially need to produce firing pulse with high pressure (20kV to 60kV) and extra high frequency, because usually in several seconds the duration of ignition, need per second more than 1000 firing pulse, to guarantee reliably igniting once more by the high-pressure discharge lamp of nominal load work.
A kind of construction of switch of igniter of discharge lamp as can be known from DE 8616255U1.Adopt this construction of switch, realized comprising the multistage gap of two or more single gaps.Compare with the single-stage gap, be divided into several gaps and have the advantage that significantly reduce deionization time.Except other reason, this can give the credit to the improved cooling effect that adopts multilevel hierarchy and obtain.The construction of switch of prior art is particularly suitable for the firing circuit of high-pressure discharge lamp.Multistage gap allows to produce the firing pulse up to 4000 of per seconds.
Yet the known construction of switch of prior art has following shortcoming: gap has expensive and expensive relatively design and structure.For prior art constructions, the electrode of gap constitutes a plurality of bulk copper bodies, and these bulk copper bodies one by one vertically, coaxially be arranged in the insulating material pipe.Gas discharge slit between the single electrode is filled with the special gas mixture of partly being made up of hydrogen.The front of electrode is provided with the active layer of being made by sodium metasilicate and other metal ingredients.Because the material of electrode is special and because gas will be filled total, so the gap production cost of prior art is high.Therefore, it also is expensive being equipped with the igniter of the discharge lamp of this gap.
Summary of the invention
In view of this background, the purpose of this invention is to provide a kind of construction of switch of igniter of discharge lamp, it has simple structure and can be with the low cost manufacturing.Therefore, this construction of switch will be suitable for allowing the igniter of the thermal ignition of high-pressure discharge lamp.
Realize this purpose by the present invention who develops from the construction of switch of aforesaid kind in the following manner: electrode is cylindrical, cylinder axis side by side and be arranged parallel to each other, that is,, arranges multi-staged air gap (spark gap in air) by being formed the mode vertical with cylinder axis.
A basic sides of the present invention is to use the electrode of as far as possible easily making that is used for gap.The electrode that uses according to the present invention is cylindrical and can be manufactured into simple revolving part.The material that is suitable as this electrode is the V4A steel, and it is the standard material that can obtain with low cost.According to the present invention, between the cylindrical electrode that is arranged side by side, be formed with linear gas discharge slit, this shape of gas discharge slit and the multistage structure of gap combine and have caused good especially cooling effect, thus the deionization time of gap is short especially.Therefore, for the igniting of discharge lamp, can realize short switching time and/or high impulse frequency.This is facilitated by the following fact: gap according to the present invention is an air spark gap, thereby it can freely lead to the outside.Therefore, can dispel the heat by air circulation and/or by convection current.In addition, air spark gap has such advantage: do not need the special gas mixture, thereby just do not need airtight outer covering layer.Therefore, the production of construction of switch of the present invention is simple, and may realize with low cost.
The electrode of construction of switch of the present invention can comprise the hole aptly, and described hole and cylinder axis are coaxially arranged and in order to hold fastening bolt.Thus, as set, electrode arranged abreast so that they align in parallel with each other is easy especially according to the present invention.
If it is the bottom side of electrode is fastened to the support plate that is made of electrical insulating material, then practical especially.Aforementioned fastening bolt can be used for this purpose.If the cover plate of being made by electrical insulating material is set, the top side of electrode is fastened to this cover plate, then obtained stable especially and strong structure.The plastic material that the material that is suitable as support plate and/or cover plate is known and cost is low (for example, fiber reinforcement printed circuit board material FR4), printed panel is made by this plastic material usually.
Therefore, vertically arrange the cylinder axis of electrode with support plate and/or cover plate.By at the fastening electrode in top side and bottom side, guaranteed parallel between the cylinder axis of electrode, even thereby have from the outside the mechanical force of this structure, still kept the constant width of the discharge slit that connects one by one.This power will make the total that is made of three or more electrodes move by the mode of parallelogram.Keep parallel between the cylinder axis, the width of discharge slit only changes on the whole a little.For those reasons, even construction of switch of the present invention is still reliable especially at (frequent those stress that take place in as the thermal ignition process at high-pressure discharge lamp) under the situation that is subjected to strong mechanical stress.
In addition, the support plate of construction of switch of the present invention and/or cover plate can have a plurality of slits with respect to the gap horizontal expansion.By these slits, avoided on support plate or cover plate, forming conductive path (leakage path).This will cause utilizing the fault of the igniter of construction of switch work of the present invention inevitably.In addition, these slits have improved the cooling effect of air spark gap.
According to the significantly improved exploitation of construction of switch of the present invention, surge capacitor links to each other with support plate, is furnished with printed circuit cable on described support plate, and this printed circuit cable links to each other the electrode of described surge capacitor with the electrode of described gap.Obtained especially simple mechanical structure, this mechanical structure need be between the electrode of surge capacitor and gap extra distribution.Like this, surge capacitor has formed in the assembling of igniter with construction of switch of the present invention and practical construction unit during safeguarding.
The electrode of the gap of construction of switch of the present invention has circular (rounded-off) edge in the cylindrical shell of this electrode and the transitional region between the front be significant.Can avoid the excessive electric field strength (it can cause being difficult to control the some fire behavior of gap) in the fringe region thus.
The normally design for (in most cases under 50Hz, 400V) work in the three-phase electricity drift net of high-pressure discharge lamp with high-performance nominal value.At the input terminal place of this high-pressure discharge lamp, two different phases of three-phase current power supply network are arranged.The ballast of the form of core-type reactor need be for example adopted in the work of high-pressure discharge lamp usually.In addition, need to produce the igniter of high-voltage pulse, this high-voltage pulse is used for turn-on lamp and brings the ionization of the admixture of gas that initiation exists at lamp by this high-tension pulse.
High duty ratio (high-duty) discharge lamp (for example metal halide high-voltage lamp and high voltage sodium lamp) in fact only is used for industrial purposes.Since its high efficiency with and high cost utilance, compare with fluorescent lamp with incandescent lamp, they have advantage in this field.The high duty ratio high-pressure discharge lamp large space (for example, construction site, stadiums, parking lot, warehouse etc.) that usually is used to throw light on, even be used for road lighting.
With regard to the connection of high-pressure discharge lamp, must distinguish the igniting under cold state of lamp and the so-called thermal ignition under rated load condition.
For the igniting under the cold state, amplitude is enough to start safely lamp less than the high-voltage pulse of 5kV.Yet as will considering that the vapor pressure of the gas filler of lamp spreads all in the lamp once more to the high-pressure discharge lamp igniting under rated load condition, this can produce the effect of the ionization of more difficult initiation gas filler.
Therefore, for the thermal ignition of high-pressure discharge lamp, needing amplitude is the potential pulse of 20kV to 60kV, and lamp must utilize this potential pulse to charge repeatedly.Usually, between burn period, need per second, to guarantee reliably igniting once more by the high-pressure discharge lamp of nominal load work more than 1000 firing pulse.In practice, the igniter that is used for the thermal ignition of high-pressure discharge lamp is typically connected to discrete power supply.
The igniter that is operated under the electrical network constitutes prior art.They are according to the initial principle of stacking work of describing.For example, this as can be known igniter from DE 2744049C2.For the igniter of the prior art, ignition pulse generator and high-pressure discharge lamp all receive electric power from same single phase alternating current (A.C.) system.
In practice, has high nominal value and be typically connected to the electric power supply system of discrete (for example, single-phase) from the igniter that the three-phase current system receives those high-pressure discharge lamps of power supply.When the igniter of this high-pressure discharge lamp of design, must consider the specified requirement of lamp manufacturer.Amplitude and quantity and frequency that these require not only to relate to firing pulse also relate to firing pulse with respect to the phase angle of the alternating voltage at the input terminal place that is present in high-pressure discharge lamp.For example, for the high-pressure discharge lamp of HQI 2000W/D/S type, manufacturer requires firing pulse to have the amplitude of 36kV at least, need send the firing pulse of at least 10 of every power supply half-waves from igniter, to carry out the thermal ignition of lamp.Must correctly design igniter so that it meets the requirement of lamp manufacturer appointment, thus will be at the phase angle interim generation firing pulse of 60 ° of el to 120 ° of el and 240 ° of el to 300 ° of el.
And the igniter of learning from aforementioned DE 2744049C2 can't satisfy the requirement of this manufacturer.
Given this background, another object of the present invention provides a kind of igniter of high-pressure discharge lamp, and the firing pulse that adopts this igniter can guarantee that this igniter produces has the phase angle with respect to the alternating voltage that is present in the lamp place that requires as lamp manufacturer.In addition, require this igniter under the electrical network connection different, to work with the electrical network connection of high-pressure discharge lamp.
Realize this purpose by the present invention who develops from the igniter of the kind mentioned at first in the following manner: be provided for connecting control unit with the cutoff high generator, this control unit is connected to a synchronous circuit, and this synchronous circuit is used to make the operation of described high pressure generator synchronous with the alternating voltage at the input terminal place that is present in described high-pressure discharge lamp.
According to the present invention, this igniter has electronic control unit, is only activating high pressure generator by expectation igniting phase angle interim of the alternating voltage that is present in the lamp place of lamp manufacturer appointment by this electronic control unit.Because this igniter is worked under wanting to connect at the electrical network different with the electrical network connection of high-pressure discharge lamp, so synchronous circuit according to the invention is provided.This synchronous circuit is used for making control unit to control the connection process and the cutting-off process of high pressure generator according to the time by making firing pulse have the mode at correct phase angle.The synchronous circuit of igniter of the present invention guarantees to meet the ignition phase angular spacing of appointment, and no matter the electrical network of high-pressure discharge lamp connects and is connected the actual relative phase angle that has with the possible discrete electrical network of igniter, this has superiority especially.
Another advantage of igniter of the present invention is, it in the three-phase current network system (for example can be used for equivalently, 400V, 50Hz) two phases between the high-pressure discharge lamp of working or the high-pressure discharge lamp that is connected to single phase alternating current (A.C.) electrical network system (for example, 230V, 50Hz).How many nominal values of spot is not, and especially for thermal ignition, igniter all can be general.
For igniter of the present invention, the elementary winding and the switch element of surge capacitor, folded formula transformer form series resonant circuit aptly.As previously mentioned, resonant circuit is as long as vibrate in high-frequency range once closed by switch element.Utilize this vibration, in folded formula Secondary winding of transformer, induce the firing pulse that offers high-pressure discharge lamp.Because the required level of ignition voltage, from 1MHz to up to all vibrations of convenience point ignition circuit of the frequency in the scope of about 10MHz.
According to a preferred implementation, making the switch element of the firing circuit closure of igniter of the present invention is gap.Surge capacitor one is charged to specific voltage level, and gap is just connected automatically.Especially be suitable as this igniter switch element be structure with gap of aforementioned type.
The high pressure generator of igniter of the present invention can be worked in single phase alternating current (A.C.) electrical network system.As previously outlined, a mutually different phase of the high pressure generator power-supply system that is connected with high-pressure discharge lamp that can be connected to AC power supply system.For example, high-pressure discharge lamp can be worked between two phases of three-phase power supply system, and high pressure generator is worked mutually and between the neutral conductor at another of three-phase power supply system.Therefore, what have superiority especially is: can choose at random the phase that is used for high-pressure discharge lamp and is used for high pressure generator of three-phase power supply system, and needn't observe specific cabling scenario.This be possible be because the synchronous circuit of igniter of the present invention has guaranteed that the phase angle of firing pulse is correct.Therefore, can be used if igniter of the present invention is worked on the single-phase alternating current origin system, because neutral conductor is always arranged in practice, also be like this even can connect from its three-phase current that receives power supply for lamp especially generally.Therefore, can be connected with available electrical network and irrespectively use this igniter and always without any problem.
According to the preferred structure of igniter of the present invention, described synchronous circuit can have zero cross detection circuit.Detect the zero passage of the alternating voltage at the input terminal place that is present in high-pressure discharge lamp thus.When the synchronous circuit of structure has determined to be present in the phase angle of the alternating voltage at high-pressure discharge lamp place based on these zero passages in this way, control unit can be connected and the cutoff high generator in the correct moment based on the signal from zero cross detection circuit, thereby has produced the firing pulse with correct phase angle.
In addition, the synchronous circuit of igniter of the present invention has auxiliary circuit aptly, and this auxiliary circuit is used to produce and the phase locked auxiliary synchronous signal of the supply voltage of high pressure generator.Therefore, this auxiliary synchronous signal can be any signal, is preferably and the phase locked digital signal of the supply voltage of high pressure generator.Can utilize control unit to produce the control signal that offers high pressure generator in a simple manner according to (numeral) signal of zero cross detection circuit and according to this auxiliary synchronous signal subsequently.By this control signal, high pressure generator is only connected in the appointment of the alternating voltage that is present in high-pressure discharge lamp place igniting phase angle interim.For this reason, the electronic system of control unit is determined from the signal of zero cross detection circuit and the phase difference between the auxiliary synchronous signal.In this, can calculate at interval according to the appointment igniting phase angle of this control signal then and connect and cut off constantly.Connect and the time correlation of cutoff high generator control based on auxiliary synchronous signal then, if possible for example by means of the rising edge or the trailing edge of auxiliary synchronous signal, used as time reference.From this time reference, postpone execution with the time and connect and cut off, this time delay is according to previous definite obtaining from the signal of zero cross detection circuit and the ignition phase angular spacing of phase difference between the auxiliary synchronous signal and appointment.
According to another preferred structure, igniter of the present invention comprises the lamp current sense circuit that links to each other with control unit, and this lamp current sense circuit is used to detect the operating current that flows through high-pressure discharge lamp.Lighted if control unit has been determined high-pressure discharge lamp based on this operating current that flows, then control unit is used to come permanent cutoff high generator from the signal of lamp current sense circuit.
Description of drawings
Below by different accompanying drawings the embodiment of embodiments of the present invention is described, wherein:
Fig. 1 shows the summary circuit diagram of the igniter with construction of switch of the present invention;
Fig. 2 shows the sectional side view according to gap of the present invention;
Fig. 3 illustrates support plate and cover plate according to the gap of Fig. 2 with top plan view;
Fig. 4 shows the block diagram of igniter of the present invention;
Fig. 5 shows the time correlation control to igniter of the present invention.
Embodiment
For switching circuit shown in Figure 1, discharge lamp 1 is connected to the secondary winding 2 of folded formula transformer 3.Discharge lamp 1 links to each other with electrical network splicing ear 5 via secondary winding 2 and the core-type reactor that links to each other in the centre.The igniter of being made up of firing circuit 6 and high pressure generator 7 is used for being discharge lamp 1 igniting.Firing circuit 6 comprises: the elementary winding 8 of folded formula transformer 3, surge capacitor 9 and conduct be the gap 10 of operating switch element automatically.Surge capacitor 9 is charged by high pressure generator 7.The elementary winding 8 of surge capacitor 9 and folded formula transformer 3 is formed on the series resonant circuit of vibration in the MHz scope.If surge capacitor 9 is charged to the certain high pressure level, then gap 10 igniting.This moment, firing circuit 6 closures, and in the elementary winding 8 of folded formula transformer 3, formed the higher-order of oscillation.In secondary winding 2, this vibration is become to rise, thereby has the firing pulse with opposite polarity symmetrically at the splicing ear place of discharge lamp 1.Therefore, the secondary winding 2 of folded formula transformer 3 has reverse winding.Continue charging by 7 pairs of surge capacitor of high pressure generator 9.Gap 10 to be being shorter than one millisecond the time interval starting the arc (disrupt), thereby makes the firing pulse charging of discharge lamp 1 with appropriate frequency.According to the present invention, gap 10 is constructed to the multi-staged air gap.
As described in the illustrative execution mode of Fig. 2, gap 10 is made of four cylindrical electrodes 11, and cylinder axis 12 promptly, is arranged by the multi-staged air gap being formed the mode vertical with cylinder axis 12 side by side and be arranged parallel to each other.Utilize the space between the electrode 11, shown in the embodiment of present embodiment, formed three linear discharge slits 13 as illustrated.The geometry of discharge slit 13 has been determined some fire behavior, especially starting resistor, cut-out voltage and the deionization time of gap fatefully.In order accurately electrode 11 relative to each other to be positioned, electrode 11 has the coaxial aperture 14 that is used for fastening bolt and/or pin (this figure does not more closely illustrate).For the embodiment of illustrated present embodiment, the bottom side of electrode 11 is secured to support plate 15 and its top side is secured to cover plate 16.Support plate 15 and cover plate 16 are made of the electric insulation printed circuit board material.
Fig. 3 illustrates support plate 15 and cover plate 16 with top plan view.By the hole 17 of accurate arrangement, the fastening bolt of electrode 11 is fixed on support plate 15 and/or the cover plate 16.In addition, support plate 15 is provided with the hole 18 of the electrode that is used for fastening surge capacitor 9.Fig. 2 shows the total that is made of gap 10 and surge capacitor 9.The top side of support plate 15 is provided with printed circuit cable 19, and this printed circuit cable 19 is used to connect the electrode 10 of surge capacitor 9 and the electrode 11 of gap 10.
As shown in Figure 2, in the transitional region 21 between cylindrical shell and front, electrode has along the edge of circumference circle.
In addition, Fig. 2 and 3 shows support plate 15 and the cover plate 16 with the slit 22 that laterally extends with respect to gap.
Can be equipped with these slits by on support plate 15 and cover plate 16, applying simple milling (millling) process.Suitably the width of selection slit 22 and length are positioned at the possible leakage path of the upside of support plate 15 and/or cover plate 16 with abundant enhancing.
Be connected to switching circuit shown in Figure 4 terminal 101 and 102 be high-pressure discharge lamp 103.Link to each other with two of three-phase current supply system with 105 by terminal 104.The supply voltage that is present in terminal 104 places offers high-pressure discharge lamp 103 by the ballast 108 that is connected terminal 106 and 107.Ballast 108 can be traditional core-type reactor.In addition, Fig. 4 shows the igniter 109 with ignition pulse generator 110.Ignition pulse generator 110 comprises surge capacitor 111, elementary winding 112 and folded formula transformer 113.The secondary winding 114 of the folded formula transformer 113 of Jian Liing links to each other with 102 with the splicing ear 101 of high-pressure discharge lamp 103 symmetrically.In addition, ignition pulse generator 110 comprises the gap 115 according to Fig. 1 to 3, as automatic operating switch element.The elementary winding 112 of surge capacitor 111, folded formula transformer 113 and switch element 115 have formed the series resonant circuit with the MHz range oscillation.Surge capacitor 111 links to each other with 117 with the lead-out terminal 116 of high pressure generator 118.High pressure generator 118 is used for to surge capacitor 111 chargings.If surge capacitor 111 is charged to the certain high pressure level, then gap 115 is connected.This moment, the firing circuit closure, and in the elementary winding 112 of folded formula transformer 113, produced the higher-order of oscillation.This vibration is become in secondary winding 114 to rise, thereby has the firing pulse with opposite polarity symmetrically at terminal 101 and 102 places.For this reason, the secondary winding 114 of folded formula transformer 113 has reverse winding aptly.Control circuit 120 links to each other with the control connection 121 of high pressure generator 118 via connection 119.High pressure generator 118 be switched on accordingly and cut off from the control signal that control unit 120 provides via control connection 121.When high pressure generator 118 was connected, surge capacitor 111 was continued charging.Gap 115 punctured with the time interval that is shorter than 1 millisecond, thereby charged for high-pressure discharge lamp 103 with the firing pulse of respective frequencies.High pressure generator 118 is connected to a phase of three-phase current supply system via terminal 122, this be different from mutually be connected to respectively terminal 104 with 105 those mutually.High pressure generator 118 is connected to the neutral conductor of three-phase current supply system by terminal 123, carries out work thereby high pressure generator connects 124 and 125 by its input that is positioned at the single-phase ac power supply net on the whole.For the operation that makes high pressure generator 118 synchronous with the alternating voltage at terminal 101 that is present in high-pressure discharge lamp and 102 places, switching circuit shown in Figure 1 also comprises: zero cross detection circuit 126 is used to detect the zero passage that the input that is present in high-pressure discharge lamp 103 connects the alternating voltage at 101 and 102 places; And auxiliary circuit 127, be used to produce and the phase locked auxiliary synchronous signal of the supply voltage of high pressure generator 118.Zero cross detection circuit 126 connects 128,129 by input and links to each other with terminal 105 and/or 106.If the alternating voltage that is present between these terminals has zero passage, then the output at zero cross detection circuit 126 connects the digital signal that 130 places produce correspondence, and the input that this digital signal is provided for control unit 120 connects 131.Terminal 122 links to each other with the splicing ear 132 and/or 133 of auxiliary circuit 127 with 123.Thus, auxiliary circuit 127 is connected to the single-phase alternating current origin system.For the embodiment of illustrated execution mode, auxiliary circuit 127 has dual-use function.On the one hand, auxiliary circuit 127 connects 134 places in output and produces direct voltage, and this direct voltage offers control unit 120 so that energy to be provided by connecting 135.Connect 136 places an output and have auxiliary synchronous signal, this auxiliary synchronous signal connects 137 by input and offers control unit 120.According to the signal at splicing ear 131 places that are present in zero cross detection circuit 126 and according to the auxiliary synchronous signal that is present in splicing ear 137 places, control unit 120 produces control signal, and this control signal offers high pressure generator 118 by splicing ear 119 and/or 121.At first, the phase difference that control unit 120 is determined between zero cross detection circuit 126 and the auxiliary synchronous signal, and it determines the moment of connection and cutoff high generator 118 respectively according to the ignition phase angular spacing of appointment thus.After the signal and the phase difference between the auxiliary synchronous signal determined from zero cross detection circuit 126, carry out control to high pressure generator 118 based on auxiliary synchronous signal.By determining this phase difference, guaranteed consistent, that is, irrelevant with the correct phase angle of firing pulse with the actual relative phase relation that has of the line voltage that is present in terminal 104,105 and 102.In addition, igniter 109 shown in Figure 1 has lamp current sense circuit 138.Lamp current sense circuit 138 is attached in the power line of high-pressure discharge lamp 103 by splicing ear 139 and 140.One flows and electric current is arranged (this expression high-pressure discharge lamp 103 has been lighted) between connecting 139 and 140, just produces digital signal connecting 141 places, and this digital signal offers control unit 120 by connecting 142.If receive this signal, then control unit 120 makes high pressure generator 118 permanent inactivations, to guarantee that high-pressure discharge lamp 103 no longer unnecessarily charges with firing pulse after igniting.In addition, be provided with auxiliary firing circuit 143, the resistance that it mainly comprises the auxiliary firing capacitor and is connected in series to this auxiliary firing capacitor, and its requirement according to the appointment of lamp manufacturer forms size and demarcation.The series circuit of being made up of this auxiliary firing capacitor and this resistance links to each other with splicing ear 144,145, and by relay 146, this series circuit can with high-pressure discharge lamp 103 switch in parallel.During ignition process, the series circuit of being made up of this auxiliary firing capacitor and this resistance is used for remaining resident in the half-wave voltage at lamp terminal 101 and 102 places temporarily, thereby this series circuit is used as ignition-assist apparatus.Relay 146 is driven by control unit 120, and for this reason, relay 146 is connected to control unit 120 by splicing ear 147.
Fig. 5 shows time correlation signal train crucial for the function of igniter of the present invention proposed above.With label 150 appointments are the 50Hz alternating voltages that are present in high-pressure discharge lamp 103 places.Connect 130 places in the output of zero cross detection circuit 126 and receive signal 151.Each when alternating voltage 150 zero passages, zero cross detection circuit 126 produces a short number word pulse.The auxiliary synchronous signal that auxiliary circuit 127 produces with 152 indications of the label among Fig. 5.The supply voltage Phase synchronization of signal 152 and high pressure generator 118.According to signal 151 and 152, the control signal that control unit 120 produces with 153 indications of the label among Fig. 5.For this reason, the phase difference T between control unit 120 first calculated signals 151 and the signal 152.The ignition phase angular spacing (60 ° of el to 120 ° of el and 240 ° of el to 300 ° of el) that depends on expectation is connected T constantly according to the rising edge calculating of signal 152
EP, T
ENAnd cut-out moment T
AP, T
AN, respectively at the positive half wave (T of supply voltage 150
EP, T
AP) and/or negative half-wave (T
EN, T
AN) during firing pulse.When the digital signal 153 of control unit 120 is activated, produce firing pulse.This is each situation once during the positive half wave of supply voltage 150 and/or negative half-wave.In each igniting phase angle interim, produce ten or more a plurality of firing pulse accordingly with the requirement of lamp manufacturer.
Claims (15)
1. the construction of switch of the igniter of a discharge lamp (1), this construction of switch comprises the gap that is formed and connected with the elementary winding (8) and the surge capacitor (9) of folded formula transformer (3) by three or more electrodes (11), this construction of switch is characterised in that, described electrode (11) has cylindrical structural, cylinder axis (12) side by side and be arranged parallel to each other, that is, arrange by the multi-staged air gap being formed the mode vertical with cylinder axis (12).
2. construction of switch according to claim 1, this construction of switch are characterised in that described electrode (11) has a hole (14), and each hole (14) are coaxial with described cylinder axis (12), are used to hold fastening bolt.
3. construction of switch according to claim 1 and 2, this construction of switch are characterised in that the support plate of being made by electrical insulating material (15), and the bottom side of described electrode (11) is secured to described support plate (15).
4. construction of switch according to claim 3, this construction of switch are characterised in that the cover plate of being made by described electrical insulating material (16), and the top side of described electrode (11) is secured to described cover plate (16).
5. construction of switch according to claim 4, this construction of switch are characterised in that described support plate (15) and/or described cover plate (16) have the slit (22) with respect to described gap horizontal expansion.
6. construction of switch according to claim 3, this construction of switch is characterised in that, described surge capacitor (9) links to each other with described support plate (15), be furnished with printed circuit cable (19) on described support plate (15), this printed circuit cable (19) links to each other the electrode (20) of described surge capacitor (9) with the electrode (11) of described gap.
7. construction of switch according to claim 3, this construction of switch are characterised in that the electrode in the transitional region between cylindrical shell and front has circular edge.
8. the igniter of a high-pressure discharge lamp (103), this igniter has ignition pulse generator (110), this ignition pulse generator (110) comprises by surge capacitor (111), the firing circuit that the elementary winding (112) of folded formula transformer (113) and switch element (115) form, and comprise the high pressure generator (118) that is used to described surge capacitor (111) charging, described igniter is characterised in that the control unit (120) that is used for connecting and cutting off described high pressure generator (118), described control unit (120) is connected to a synchronous circuit, this synchronous circuit is used to make the operation of described high pressure generator (118) to be connected (101 with the input that is present in described high-pressure discharge lamp (103), 102) alternating voltage of locating (150) is synchronous
This igniter is characterised in that described switch element (115) comprises the structure that has according to each the described gap in the aforementioned claim 1 to 7.
9. igniter according to claim 8, this igniter are characterised in that the elementary winding (112) of described surge capacitor (111), described folded formula transformer (113) and described switch element (115) form series resonant circuit.
10. igniter according to claim 8, this igniter are characterised in that described high pressure generator (118) is connected to a phase of AC power supply system, and this is different from the phase of the three-phase power supply system that described high-pressure discharge lamp (103) connected mutually.
11. igniter according to claim 8, this igniter is characterised in that, described synchronous circuit comprises zero cross detection circuit (126), and this zero cross detection circuit (126) is used for detecting the zero passage that the input that is present in high-pressure discharge lamp (103) connects the alternating voltage of (101,102) locating (150).
12. igniter according to claim 11, this igniter is characterised in that, described synchronous circuit comprises auxiliary circuit (127), and this auxiliary circuit (127) is used for the phase locked auxiliary synchronous signal of supply voltage (152) of generation and described high pressure generator (118).
13. igniter according to claim 12, this igniter is characterised in that, described control unit (120) has such structure: its signal according to described zero cross detection circuit (126) (151) and described auxiliary synchronous signal (152) produce control signal (153), by the mode of only connecting described high pressure generator (118) during the assignable ignition phase angular spacing that is present in the alternating voltage (150) that described high-pressure discharge lamp (103) locates described control signal are fed to described high pressure generator (118).
14. igniter according to claim 13, this igniter is characterised in that described control unit (120) has such structure: it determines the signal (151) of described zero cross detection circuit (126) and the phase difference (Δ T) between the described auxiliary synchronous signal (152); And it determines connection and the moment (T that cuts off at this ignition phase angular spacing according to the appointment of control signal (153)
E, T
A).
15. igniter according to claim 8, this igniter is characterised in that the lamp current sense circuit (138) that links to each other with described control unit (120), and this lamp current sense circuit (138) is used for detecting the operating current that flows through described high-pressure discharge lamp (103).
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410060471 DE102004060471A1 (en) | 2004-12-16 | 2004-12-16 | Circuit for discharge lamp igniter has row of cylindrical electrodes connected to transformer and pulse capacitor giving multistage spark air gap across cylinder axes |
| DE102004060471.1 | 2004-12-16 | ||
| DE200520000542 DE202005000542U1 (en) | 2005-01-13 | 2005-01-13 | Circuit arrangement for discharge lamp ignition/starting device, has cylindrical electrodes in sparking path with axes of cylinders adjacent and parallel to one another |
| DE202005000542.8 | 2005-01-13 | ||
| PCT/EP2005/013566 WO2006063845A2 (en) | 2004-12-16 | 2005-12-16 | Circuit arrangement for a starting unit of a discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101112127A CN101112127A (en) | 2008-01-23 |
| CN101112127B true CN101112127B (en) | 2011-02-02 |
Family
ID=36590313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800471899A Expired - Fee Related CN101112127B (en) | 2004-12-16 | 2005-12-16 | Switch arrangement for a starting unit of a discharge lamp |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101112127B (en) |
| DE (1) | DE102004060471A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8076865B2 (en) * | 2008-05-23 | 2011-12-13 | Osram Sylvania Inc. | Ignition for ceramic metal halide high frequency ballasts |
| US8624493B2 (en) * | 2008-11-28 | 2014-01-07 | Osram Gesellschaft Mit Beschrankter Haftung | Integrated gas discharge lamp with an ignition electronics integrated into the base for generating asymmetrical ignition pulses |
| CN103987148A (en) * | 2013-02-08 | 2014-08-13 | 东林科技股份有限公司 | Dimmable light-emitting-diode illumination system, and driving device and driving method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8616255U1 (en) * | 1986-06-18 | 1988-01-28 | Siemens AG, 1000 Berlin und 8000 München | Multiple gas discharge arresters |
-
2004
- 2004-12-16 DE DE200410060471 patent/DE102004060471A1/en not_active Withdrawn
-
2005
- 2005-12-16 CN CN2005800471899A patent/CN101112127B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8616255U1 (en) * | 1986-06-18 | 1988-01-28 | Siemens AG, 1000 Berlin und 8000 München | Multiple gas discharge arresters |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101112127A (en) | 2008-01-23 |
| DE102004060471A1 (en) | 2006-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2085076A (en) | Plasma ignition system | |
| JPS5859376A (en) | Plasma igniter | |
| CA2584628C (en) | Triggered pulsed ignition system and method | |
| CN204827767U (en) | Ignition and ignition system | |
| JP5897099B1 (en) | Ignition device | |
| US7781981B2 (en) | Circuit arrangement for a starting unit of a discharge lamp | |
| CN101112127B (en) | Switch arrangement for a starting unit of a discharge lamp | |
| US8453628B2 (en) | Method for generating corona discharges in two combustion chambers of a combustion engine | |
| CN1153507C (en) | Circuit arrangement | |
| US4037136A (en) | Circuit arrangement for igniting at least one gas discharge flash lamp | |
| JP6773004B2 (en) | Ignition system for internal combustion engine | |
| JPH0594888A (en) | Circuit device | |
| JP5253144B2 (en) | Ignition device for internal combustion engine | |
| CA2870131A1 (en) | High-frequency plasma ignition device | |
| CA2299864C (en) | High-pressure discharge lamp having a base at one end and a starting device integrated in the base | |
| WO2001080605A1 (en) | Igniter circuitry for gaseous discharge lamps | |
| CN105604766B (en) | The corona ignition of internal combustion engine | |
| EP0903967A1 (en) | An igniter for discharge lamps | |
| US20120025728A1 (en) | Hid lamp ignitor | |
| KR20020093564A (en) | Lamp lighting device with a starting circuit | |
| US5156136A (en) | Ignition coil | |
| EP1327772B1 (en) | Ignition system having improved spark-on-make blocking diode implementation | |
| CN100575696C (en) | The ignition system that is used for explosive motor | |
| JP3116964B2 (en) | Engine ignition device | |
| JPH0744076B2 (en) | Discharge lamp lighting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: HEP TECH CO., LTD. Free format text: FORMER OWNER: WINKEL MICHAEL Effective date: 20101117 Free format text: FORMER OWNER: SCHMIDT KARL |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: VERDOL, GERMANY TO: TAICHUNG CITY, TAIWAN PROVINCE, CHINA |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20101117 Address after: Taichung City, Taiwan, China Applicant after: Hep Tech Co., Ltd. Address before: German Wedol Applicant before: Winkel Michael Co-applicant before: Schmidt Karl |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20141216 |
|
| EXPY | Termination of patent right or utility model |