CN101427442A - Battery circuit in an emergency light device - Google Patents
Battery circuit in an emergency light device Download PDFInfo
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- CN101427442A CN101427442A CN200780014407.8A CN200780014407A CN101427442A CN 101427442 A CN101427442 A CN 101427442A CN 200780014407 A CN200780014407 A CN 200780014407A CN 101427442 A CN101427442 A CN 101427442A
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Abstract
An emergency light device (1), for operating a light source, in particular, an LED, the emergency light device (1) comprising: a battery (4), a charging circuit (3), to be supplied with a mains voltage (Uin) for charging the battery (4) during a charging phase and a power circuit (5), supplied from the power storage unit (4), for operation of the light source, the device (1) further comprising a controller (2) which is designed to monitor the state of the mains voltage (Uin) during the charging phase and, on recognition of an emergency state, to activate the emergency light operation. A switch (12) is provided in series with the battery (4) by means of which the battery can be selectively isolated.
Description
Technical field
The present invention relates to a kind of emergency lighting device according to the preorder of claim 1, in order to operate a light source, a light-emitting diode (LED) and this emergency lighting device is provided especially.
Background technology
In big relatively building or comprehensive building, under the situation of common main linely connected power sup ply fault, still there are enough illuminations can utilize main line in order to realize illuminator, emergency lighting device is indispensable.At power supply supply fault or other in emergency circumstances, have only when some corresponding partial building or zone remain illuminated, just can implement evacuation method or means to save the situation safely.Therefore, particularly, adopt such emergency lighting device for the purpose in throw light on escape route and suchlike place.
Correspondingly, the emergency lighting device of general type comprise the battery of a energy-storage units as main element-particularly or a storage battery-its in normal or charging work by common main linely connected power sup ply voltage charging.For this purpose, a charging circuit is provided, it is connected to main linely connected power sup ply voltage at input, and in charging work, gives the energy-storage units supplying energy constantly, and this energy-storage units is stored this energy.Only under the situation that an emergency occurs, the device that this emergency is passed through this class of monitoring of main linely connected power sup ply voltage usually independently detects, and is converted to emergency lighting work, and wherein an emergency light source is activated and works, last to what need, this energy-storage units can with energy be used.Because the memory capacity of this energy-storage units is limited naturally, so preferably use the less relatively light source of power consumption.Therefore, such emergency lighting device preferably is assembled gaseous discharge lamp, particularly fluorescent tube.But since the light source with the emitting semiconductor form has also showed high efficiency and can be correspondingly to be used to the mode of clean energy, these light sources, particularly LEDs also find application more and more.
In order to cause the work of emergency lighting in good time mode, therefore the monitoring of the main linely connected power sup ply voltage of carrying out is normally born by a control unit, and its evaluation offers the signal of oneself and based on the state of these radio signal assessment main linely connected power sup ply voltages.In known circuit, for this purpose, main linely connected power sup ply voltage oneself is measured in an obvious mode.Yet, to go wrong so since then, this problem is that the sensing technology that is used for definite main linely connected power sup ply voltage will and have at the main line current potential separate with the residual circuit zone electricity of emergency lighting device, and this residual circuit zone is at the voltage levvl of energy-storage units or LED.For the separation of the required current potential of this purpose still expensive and also further taken a large amount of relatively space in this emergency lighting device.
Summary of the invention
Below, the objective of the invention is to describe in detail the improved thought of the shortcoming of an emergency lighting device of avoiding foregoing description.
This purpose realizes by the feature of independent claims.Favourable further improvement of the present invention is the theme of dependent claims.
Form contrast with known scheme, for suitable emergency lighting work is taken place, main linely connected power sup ply voltage can be indirect monitored, for this purpose, only the measured value on the current potential of this energy-storage units or LED is recorded, and the state of this main linely connected power sup ply voltage is inferred under the help of more information based on these measured values.
According to a first aspect of the invention, a kind of operation one light source, the especially emergency lighting device of a LED comprise:
One battery,
One charging circuit, it is used for to described battery charge with a main linely connected power sup ply power voltage supply, and
One drive circuit by described powered battery, is used to operate described light source in the emergency lighting operation.
One switch and described battery are connected in series, and can optionally be cut off by the described battery of switch.
The described switch of described battery series connection can be as a linear regulator, can be by the transistor of described control unit operation.
Under the situation of detected described battery over-discharge can, the described switch of connecting with described battery can be triggered to pulse operation.
The discrete circuit that the described cell voltage of record is set is in order to write down the over-discharge can of described battery
The switch that one surveying record device can be connected in series and battery (4) is connected in series.
Another aspect of the present invention relates to a kind of operation one light source, and the emergency lighting device of a LED (1) especially comprising:
One battery,
One charging circuit, it is used for giving described battery charge at charging operations with a main linely connected power sup ply power voltage supply, and
One drive circuit by energy-storage units (4) power supply, is used to operate described light source in the emergency lighting operation.
One surveying record device and described battery are connected in series in order to the charging current that writes down described battery and the discharging current of described battery.
The current signal of described battery has the compensation that is applied on it, thus can calculate as same polarity but have the value of the discharging current of the charging current of described battery of signal of various amplitude and described battery.
By an operational amplifier compensation is applied to described battery current.
Described charging circuit preferably includes a gate-controlled switch and a transformer, and wherein, this charging circuit can be made of a so-called anti exciting converter particularly.This controlled switch is triggered by the control unit of this emergency lighting device, wherein here can trigger by an optical coupler especially.
Especially, this moment, the state of described main linely connected power sup ply voltage can be determined by the reference duty ratio, and this duty ratio is selected by the control unit of the switch that triggers described anti exciting converter or charging circuit.Further, for this purpose, the secondary voltage of anti exciting converter by with reference to or, the charge power of described energy-storage units is by reference under the topology situation of the power supply of other switching modes supply.This charge power can be determined-that is to say in direct mode by described control unit during charging operations, has the light source of closing, because measured value for this purpose, i.e. the identical rheobase of current potential of the voltage and current of accumulator-relate to and the miscellaneous part of emergency lighting device.The identical secondary voltage that also is applied to, it is measured under the situation of using anti exciting converter.In two kinds of situations, electricity between measurement mechanism and control unit, that technical development is required separates and can correspondingly be save.
The another favourable further improvement of the present invention relates to the method at emergency lighting duration of work operation light source, particularly LED.For this purpose, drive circuit preferably adopts the form of switching regulaor, and correspondingly comprises the another gate-controlled switch that is triggered in turn by control unit.In this case, the triggering of this switch is can enough one constant power of light source or constant electric current work down, and does not consider the charged state of energy-storage units.Because As time goes on the power of energy-storage units will inevitably descend, so this method particular importance, can not influence the light intensity of emergency lighting device by this method.
Under the situation of use as the LED of light source, for the power adjustments that realizes making every effort to, correspondingly, it himself is conspicuous detecting or write down diode current once more, and it will determine the power of light.But according to particularly advantageous further improvement of the present invention, one is defined as the measurement of saving diode current, and replace, the electric current of light source or power are measured indirectly based on other parameters or are judged.Especially, preferably only determine to be applied to the voltage of light source, and diode current derives from further information then, wherein in this connects, will consider the power loss of drive circuit especially.Use is stored in the previous comparison sheet of determining (balancing tables) in the control unit, and the power of light source can be determined and need not the direct measurement of diode current so, so that a similar constant luminous output can be regulated by control unit.Like this, when the power at operation light source place can be conditioned in a very simple and fabulous mode, in this case, particularly regulate luminous output by the timing that is fit to of the gate-controlled switch of drive circuit.
Be used for this concrete grammar of operation light source under a similar constant power, wherein the direct measurement of electric current is save, and the thought that can also be independent of the non-direct monitoring of the initial main linely connected power sup ply of describing according to the present invention is by way of parenthesis used.Correspondingly, this thought also is the main body of further independent claims.
Description of drawings
Based on accompanying drawing, will carry out more concrete description to the present invention below.Be depicted as:
Fig. 1 is the schematic circuit of first representative embodiment of emergency lighting device of the present invention;
Fig. 2 is second representative embodiment of emergency lighting device;
Fig. 3 is based on the operating parameter at the measurement of output end of charging circuit, determines the curve chart of main linely connected power sup ply voltage;
Fig. 4 is another curve chart of the secondary output of definite charging circuit, and it has been referred to as the indirect determination of light source power; And
Fig. 5 is the pulsed schematic diagram that relates to anti exciting converter.
Embodiment
In order to operate the purpose of LED as emergency light source, in Fig. 1, describe and provide with reference symbol 1 usually in simple and clear mode, shown in representational embodiment, provide emergency lighting device of the present invention.The input of emergency lighting device 1 connects a power supply network network, and it produces an available main linely connected power sup ply voltage U
InAnd comprise energy-storage units 4 as a control unit 2, a charging circuit 3, a battery or a storage battery form of main element and one drive circuit 5.
Described in first representative embodiment, charging circuit 3 is made of a so-called anti exciting converter, and this anti exciting converter comprises that on the one hand one has the transformer T of a primary coil n1 and a level coil n2, comprises a controllable switch S 1 on the other hand.In known manner, by suitably alternately opening and closing switch S 1, main linely connected power sup ply voltage U
InThe purpose that the utilisable energy that produces is transferred to the secondary end of anti exciting converter 3 and is used for charging to energy-storage units 4.The transmission of energy occurs under the state that switch S 1 opens, wherein for this purpose, output at anti exciting converter 3 provides a diode D1. simple structure and the reliable function owing to them further, and such circuit of reversed excitation finds application in such emergency lighting device of being everlasting.
The control unit 2 of emergency lighting device is born the triggering of controllable switch S 1, the mode that this assumed triggering is isolated with electricity by an optical coupler 6 especially.In this connects, the mode control switch S1 of control unit 2 to replace, the so-called duty ratio D1 that is used for the switching manipulation of switch S 1 is calculated by following:
D1＝t
on1/(T-t
on1)
T wherein
On1To the ON time of inductive switch, and the T indication is used for the total time of a complete switch periods of switch S 1.
What can expect is, with S1 trigger be connected in the problem of " self-oscillation " is arranged, and this self-oscillatory natural frequency is subjected to the influence of the duty ratio of optical coupler 6.
In order to charge for battery 4 constantly, in the charging work of emergency lighting device 1, having only charging circuit 3 usually is work.Only possess particularly with the main linely connected power sup ply voltage U in contingency condition
InDepart under the situation that default value is a feature, start emergency lighting work, wherein drive circuit 5 is used to trigger the purpose of LED.The drive circuit 5 of the form of employing switching regulaor is a further controllable switch S 2, a self-induction coil L and a diode D for this purpose comprises
2 Control unit 2 is by the mode of trigger switch S2 alternately, makes electric current can be used for LED and makes its work.For the level of regulating the electric current that is supplied to LED and therefore LED is at the power of its work, the pulse duty factor of control unit 2 trigger switch S2 can change in this connects.In this way, guarantee that in fabulous mode LED is no matter other all has constant brightness under the power of battery situation of earthquake operation LED.
First basic functions of emergency lighting device 1 correspondingly is by the main linely connected power sup ply voltage U
InEvaluation detect whether possess contingency condition, in order suitably to produce emergency lighting work.Up to the present for this purpose, the value that directly is identified for the input voltage of charging circuit 3 is known, although this is accompanied by shortcoming based on previous reasons.
The main linely connected power sup ply voltage U
InDirect measurement preferably omitted.And generation be the measure of determining this voltage by round-about way.Especially, have such measure, wherein the only operating parameter of the emergency lighting device 1 on the secondary end that the current potential of charging circuit 3 separates big or small measured.
In the first representational embodiment shown in Figure 1, for this purpose, in the voltage U of the secondary end that blocks converter or anti exciting converter 3
Flb2Downstream at diode D1 is measured, for this purpose, especially, no longer needs electricity to separate, because the control unit 2 of this variable and this measured value of calculating is at identical reference potential.
Selectively, the voltage of the secondary coil of anti exciting converter also can be measured.
If known secondary voltage U now
Flb2Level, then can release input voltage U from this
InLevel.This is because the switch S 1 of anti exciting converter 3 when opening, at input voltage U
InWith secondary voltage U
Flb2Between have a relation, especially, it depends on two coil n1 and the turn ratio of n2 and the duty ratio of switch D1 of transformer T.At the secondary voltage U that measures easily
Flb2With monitored input voltage U
InBetween relation, now the form with numerical value tables is stored in the control unit 2, to such an extent as to measuring secondary voltage U
Flb2Afterwards, control unit definite input voltage U that can need not directly measure in simple mode
InLevel.If control unit 2 has confirmed the input voltage U that determines now
InBe positioned at outside a certain range of set value, this points to an emergency, and it will make control unit 2 initiate emergency successively.
Therefore the scheme of having described can be very simple but the effective state of the conventional power supply supply of monitoring.In addition, a special advantage of representative embodiment as shown in Figure 1 is such fact, input voltage U
InLevel can be determined regardless of whether emergency lighting LED opens.This is because diode D1 relies on its retardance behavior to produce secondary voltage U
Flb2With cell voltage U
BatBetween separation, to such an extent as to the behavior of drive circuit 3 can not influence aforesaid input voltage U
InDefinite process.
A little more generally second representative embodiment of emergency lighting device is explained in Fig. 2 according to the present invention, in its structure, this device is substantially corresponding to emergency lighting device shown in Figure 1, but charging circuit 3 is not to be made of an anti exciting converter now, but usually constitute by a circuit arrangement, it comprises current potential separation and the switch S 1 that is triggered once more by control unit 2.
In this more general embodiment, there is no need to know input voltage U
InRelation with the voltage of the output of charging circuit 3.For this purpose,, yet also can determine input voltage U here by direct method although other performance variable is measured
InLevel.
In this connects, be a cell voltage U on the one hand
BatProblem, and be a battery current I on the other hand
BatProblem.Can be relatively easily determine these two variablees once more, i.e. not electricity consumption separates, because just as the control unit 2 of the variable that calculates these measurements, they are positioned at identical reference potential once more.
Variable U based on these two measurements
BatAnd I
BatAnd, can determine input voltage U based on the duty ratio D1 of the switch S 1 of known charging circuit 3
In, because the latter is relevant with first three known variables.This curve chart by Fig. 3 is illustrated, and it shows the secondary output P of charging circuit 3
Flb2Different qualities as the function of the duty ratio D1 of switch S 1.These characteristics for example are determined in the production process of emergency lighting device and are kept in the control unit 2 with the form of form once more.Be understandable that these characteristics also depend on the discrepancy voltage U especially
InTherefore, if known the secondary output P of duty ratio D1 and charging circuit 3
Flb2, example as shown in Figure 1, thus can release input voltage U
In
In the example as shown in Figure 3, the secondary output P of known duty ratio D1 and charging circuit 3
Flb2The characteristic of combination consistently be determined accordingly, when drive circuit 5 was not activated, it equaled cell voltage U
BatWith battery current I
BatProduct.For example, under the situation of representational measured value, this value depends on 220 volts input voltage U
InCharacteristic, be equivalent to the order state of general main supply.Yet, if determined value for example depends on the input voltage U with 140 volts or 280 volts
InConsistent characteristic, control unit 2 is interpreted as the influence of breaking down in the main supply successively with this so, and can cause an emergency accordingly.
Shown in two typical embodiment, no matter whether main supply is orderly, and correspondingly it can be determined reliably, and does not need input voltage U
InDirect measured value.Yet under the situation of example shown in Figure 2, a limitation is described input voltage U
Inonly determine may be in the fact of the closed condition of drive circuit 5.On the other hand, under the situation of example shown in Figure 1, already mentioned this limitation does not exist.Under the detected situation of fault, control unit 2 will cause the activation of drive circuit 5 and opening of corresponding LED but in principle.
After drive circuit 5 activated, in order to operate the LED with expectation power, switch S 2 can be triggered at high frequency in previously described mode.In order to guarantee under the constant situation of the power of LED,, need to know the LED voltage U in order to regulate
LedWith the LED electric current I
LedAccording to particularly advantageous further developing, yet only measured the voltage U of LED
Led, electric current present I thereupon
LedPerhaps power P
LedBe determined indirectly by control unit 2, this will detailed below description.
In order to determine diode current I indirectly
Led, measure at least by cell voltage U now
Bat, battery current I
BatWith the secondary voltage U in example shown in Figure 1
Flb2And other LED voltage U
LedThe variable that constitutes may be calculated from these and regulates the LED electric current I
LedNeeded more information, for this purpose, yet still need if it were not for write down by the measurement of actual value but be stored in information in the control unit 2 with the form of numerical tabular.
Mention above, first numerical tabular is about the duty ratio D1 under example situation shown in Figure 1, secondary voltage U
Flb2With input voltage U
InRelation or duty ratio D1, cell voltage U under more common example situation shown in Figure 2
Bat, battery current I
BatWith input voltage U
InRelation.In addition, in order to determine the purpose of diode current, the power loss P of drive circuit 5
LostMust be known, it depends on the LED voltage U of measurement
LedCell voltage U with same measurement
BatDifference, to such an extent as to following having:
P
lost＝f(U
ked-U
bat)
At last, the 3rd the information of Xu Yaoing is the secondary output P of charging circuit 3
Flb2, it exists under the situation of a drive circuit that activates, and it is duty ratio D1, input voltage U
In, and cell voltage U
BatFunction.Relation table between these variablees is shown among Fig. 4, wherein is understandable that the secondary output P of charging circuit 3
Flb2Mainly depend on input voltage U
InWith the duty ratio D1 of switch S 1, yet further, also can be owing to cell voltage U
BatAnd change.
Because aforesaid measurement, if present input voltage U
In(wherein suitably, under the example shown in Figure 2 situation that at first drive circuit 5 cuts out) is determined, so based on relation shown in Figure 4, and when drive circuit 5 is activated, the secondary output P of charging circuit 3
Flb2Also can be determined.Therefore, the measurand of learning afterwards is that those are by being suitable for secondary voltage U
Flb2With the LED voltage U
LedCell voltage U
Bat, battery current I
Bat, the predetermined switch S 1 in Be Controlled unit the variable that constitutes of duty ratio D1, and also have more based on the numerical value tables of preserving and definite variable, this numerical value tables is by input voltage U
In, charging circuit 3 secondary output P
Flb2, also have the power loss P of drive circuit 5
LostForm.
Knowing in turn according to following relation of these variablees at first enables the electric current I on the secondary end of charging circuit 3
Flb2Determine:
I
flb2＝P
flb2/U
bat
At last, can be according to following Equation for Calculating LED electric current I
LedWith the LED power P
Led:
I
led＝(P
flb2-U
bat·I
bat-P
lost)/U
bat
P
led＝P
flb2-U
bat·I
bat-P
lost
Two equations all are applied under the situation that charging circuit 3 still activates-and promptly wherein at least one specific power supply supply remains available.For example, this can be the situation that has produced emergency lighting work by additive method.On the other hand, under the situation of power supply supply complete failure, and emergency lighting work is when ad hoc being kept by battery, and below the equation of Jian Huaing has:
I
led＝(U
bat·I
bat-P
lost)/U
led
P
led＝U
bat·I
bat-P
lost
At last, LED electric current I
LedPresent actual value and present power P
LedCan correspondingly be determined by round-about way, and the purpose that can be used to regulate.Corresponding calculated is carried out by control unit 2.
These advantages of determining indirectly for the required actual value of the purpose of regulating are such fact, and the measurement of other operating parameters of emergency lighting device can be save, and causes the further simplification of total device once more.In this connects, because, partly, parameter fixed or that measure for the purpose of determining input voltage can be utilized, so the particularly advantageous of thought of definite initial description indirectly that correspondingly constitutes input voltage of determining indirectly of LED electric current further develops.Yet the corresponding of the electric current of light source and power determined also can obtain implementing in other devices indirectly, but do not realize first thought of the present invention therein.For example, the mode of carrying out is perceptible, and in other factors, emergency also can be apprised of with aspect under the situation of emergency lighting device, otherwise as the monitoring one optional method of power supply supply or additional.Correspondingly, cause the work of emergency lighting in order to use external signal, under the situation according to emergency lighting device of the present invention, for example, urgency signal also can be passed on by independent control input, such as by fire alarm or other control systems.
At last, another further development relates to the aforesaid form that is stored in the value in the control unit, and it is the definite indirectly needed of input voltage and diode current.Just as already mentioned, the form of these values can be stored in the control unit in the production process of emergency lighting device.But as this substituting or replenishing, what can expect is to write down these information subsequently or upgrade these information in later time.For this purpose, for example, a digital interface that is arranged on emergency lighting device can be utilized, and it is normally used for wrong purpose and monitoring of signaling.Because this interface is auxiliary, new value form now can be written to control unit by utilizing an expansion instruction set, for example, in order to preset new designated value or feasible value for input voltage, perhaps or even in order to be used in the battery of determining not have the direct information of the variable of measurement to be suitable for connecting, writing of fresh information subsequently is responsive.In this way, emergency lighting device can correspondingly be suitable for new environment at any time in its behavior.
Obviously as shown in Figure 5, the element 12 that is parallel to battery 4 is interconnected, and it can have the function of linear regulator and/or switch.For example, this element 12 can be a transistor.In addition, parallel being connected on the battery 4 is a measuring resistance (shunting) 16, the therefore embodiment that drops to battery current of the voltage in this shunting 16.
The measuring-signal that obtains in this shunting 16 is provided for an electric current record cell 13, and it preferably is constructed to a discrete circuit and can comprises a comparator 14.How this comparator 14 is only for to apply an example that compensates to measuring-signal by shunting 16.The applying of this compensation is used for enabling to produce again in simple mode the calculating of the signal of the battery current with opposed polarity, wherein select this compensation by the mode with the variation of signal level, this variation this moment is that the mode that the bipolarity with signal shows as the different amplitude of identical polarity and this polarity changes.
Thereby known battery charge with opposed polarity can be measured in relative simple mode with battery discharge current, for example by control circuit 2.Therefore, a measuring-signal 15 with identical polar preferably is provided for this control circuit 2.
By way of parenthesis, thus the counter-rotating of the terminal polarity of battery 4 also can be recorded or detect.In this case, can have the measure of cutting off battery.Therefore still can continue by rail voltage work.The preferred sense of vision of the counter-rotating of battery polar ground, audio ground or illustrate by a fault-signal by a bus.
If transistor 12 adopts the form of linear regulator, can use the triggering of electric current record cell 13 and linear regulator 12 to realize to the battery discharge current of preset value and/or the adjusting of battery charge.In simple mode, this adjusting can certainly realize with the form of a protective circuit, so that for conserve batteries 4, under the very high situation of battery charge or battery discharge current, opens switch 12.
Replace linear regulator, a switching regulaor can be provided.
Under the situation of rail voltage chromic trouble, the over-discharge can of battery 4 can take place.If battery 4 has discharged excessively, it comprises the voltage as 1.3 volts, and it is lower than tolerable voltage accordingly, as 1.5 volts.Even the rail voltage of standard is used to the charging circuit 3 at input at this moment, and with the suitable operation charging circuit 3 of the method for foregoing description, the battery 4 of over-discharge can still can be pulled to the secondary end of charging circuit one low value of not allowing.
According to the present invention, this over-discharge can use the voltage record of battery 4 to be recorded or to detect.When such over-discharge can was recorded, switch 12 preferably was operated in a timing mode.In this connected, switch 12 only preferably was closed in the short relatively time cycle, and wherein the charging process of battery 4 is used in the time cycle of this weak point.Yet after this, switch 12 was opened once more long time cycle, so that battery 4 is cut off from the secondary end of charging circuit 3, and can produce available regulation voltage once more at this secondary end charging circuit 3, as 1.5 volts.Thereby in the longer time cycle, regulation voltage ratio is present on the secondary end.
Thereby the class pulse current charge that has the battery of over-discharge can.
When switch 12 was opened, a rail voltage that is employed once more used charging circuit to supply the led drive circuit and the LEDs of connection rightly.On the other hand, when switch during by temporary close, battery is charged frugally again.For example, can with only cycle total time 10% during in be closed and corresponding 90% during in the mode that the is unlocked pulse duty factor of coming selector switch 12 so that battery can recover in this time cycle of 90%.
Use cell voltage to write down under the situation about being recorded in the over-discharge can of battery, the commutation meeting of this pulse operation of switch 12 takes place automatically.Also therefore be independent of the monitoring that microcontroller 2 (Fig. 1 is shown in 2) is preferably realized cell voltage by discrete circuit, under the low excessively situation of cell voltage, this microcontroller 2 may not exclusively work after all.
By way of parenthesis, the electric current writing circuit 13 that has a comparator 14 owing to this reason also preferably is selected as discrete circuit and therefore is independent of microcontroller 2 and work in order.
Claims (18)
1, a kind of operation one light source, the especially emergency lighting device of a light-emitting diode (LED) comprising:
One battery (4),
One charging circuit (3), it is with a main linely connected power sup ply voltage (U
In) power supply, be used for to described battery (4) charging, and
One drive circuit (5) by described powered battery, is used to operate described light source in the emergency lighting operation,
It is characterized in that:
One switch (12) is connected in series with described battery (4), can optionally be cut off by the described battery of switch (12).
2, emergency lighting device according to claim 1, the described switch (12) of wherein connecting with described battery as a linear regulator, can be by described control unit (2) operation, transistor.
3, emergency lighting device according to claim 1 and 2, wherein under the situation of this battery (4) over-discharge can, the described switch (12) of connecting with described battery (4) can be triggered to pulse operation.
4, emergency lighting device according to claim 3, the discrete circuit that the described cell voltage of record wherein is set is in order to write down the over-discharge can of described battery.
5,, wherein under the situation of the over-discharge can of this battery that is recorded, in each timing cycle,, preferably be less than 20% the closed described switch of pulse duty factor to be less than 50% according to claim 3 or 4 described emergency lighting devices.
6, according to the arbitrary described emergency lighting device of aforementioned claim, a surveying record device described switch that is connected in series and is connected in series with described battery (4) wherein.
7, a kind of operation one light source, the especially emergency lighting device of a LED comprise:
One battery (4),
One charging circuit (3), it is with a main linely connected power sup ply voltage (U
In) power supply, be used for giving described battery (4) charging at charging operations, and
One drive circuit (5) by energy-storage units (4) power supply, is used to operate described light source in the emergency lighting operation,
It is characterized in that:
One surveying record device and described battery (4) are connected in series in order to the charging current that writes down described battery and the discharging current of described battery.
8, emergency lighting device according to claim 7, the current signal of wherein said battery has the compensation that is applied on it, thus can calculate as same polarity but have the value of the discharging current of the charging current of described battery of signal of various amplitude and described battery.
9, emergency lighting device according to claim 8 wherein is applied to described battery current by an operational amplifier with compensation.
10,, wherein utilize the triggering of a linear regulator or regulate the charging current of described battery of record and the discharging current of described battery with the switching regulaor that described battery is connected in series according to the arbitrary described emergency lighting device of claim 7 to 9.
11, according to the arbitrary described emergency lighting device of aforementioned claim, it is characterized in that:
Described charging circuit (3) comprises the gate-controlled switch (S1) that is triggered by described control unit (2).
12, emergency lighting device according to claim 11 is characterized in that:
Described charging circuit (3) is made of an anti exciting converter.
13, emergency lighting device according to claim 12 is characterized in that:
By secondary voltage (U with reference to the described anti exciting converter of duty ratio (D1) that triggers described switch (S1) and reference measure
F1b2) or the voltage of the secondary coil of described anti exciting converter, described control unit (2) is determined described main linely connected power sup ply voltage (U
In) state.
14, according to the arbitrary described emergency lighting device of claim 1 to 13, it is characterized in that
By charge power (P with reference to duty ratio (D1) that triggers described switch (S1) and the described energy-storage units of reference (4)
F1b2), described control unit (2) is determined described main linely connected power sup ply voltage (U
In) state.
15, emergency lighting device according to claim 14 is characterized in that:
Electric current (I by the described energy-storage units (4) of flowing through
Bat) measurement and by applying voltage (U thereon
Bat) measurement, described control unit (2) is determined the charge power (P of described energy-storage units (4)
F1b2).
16, according to the arbitrary described emergency lighting device of aforementioned claim, it is characterized in that:
By to known or performance variable of measuring and the comparison that is kept at the numerical tabular in the described control unit (2), described control unit (2) is determined described main linely connected power sup ply voltage (U
In).
17, according to the arbitrary described emergency lighting device of aforementioned claim, it is characterized in that:
Described drive circuit (5) adopts the form of a switching regulaor and comprises a gate-controlled switch (S2) that is triggered by described control unit (2).
18, emergency lighting device according to claim 17 is characterized in that:
Described control unit (2) triggers described drive circuit (5) in such a way, and this mode is no matter the charged state of described energy-storage units (4) makes described light source at firm power (P
Led) or constant current (I
Led) operation down.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006018531.5 | 2006-04-21 | ||
| DE102006018531 | 2006-04-21 | ||
| DE102006030655.4 | 2006-07-03 | ||
| DE102006030655A DE102006030655A1 (en) | 2006-04-21 | 2006-07-03 | Emergency lighting device for operating a light source, in particular an LED |
| PCT/EP2007/000474 WO2007121801A1 (en) | 2006-04-21 | 2007-01-19 | Battery circuit in an emergency light device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101427442A true CN101427442A (en) | 2009-05-06 |
| CN101427442B CN101427442B (en) | 2012-05-30 |
Family
ID=40616767
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780014224.6A Expired - Fee Related CN101427441B (en) | 2006-04-21 | 2007-01-19 | LED driver circuit |
| CN200780014407.8A Expired - Fee Related CN101427442B (en) | 2006-04-21 | 2007-01-19 | Battery circuit in an emergency light device |
| CN200780014428.XA Expired - Fee Related CN101427440B (en) | 2006-04-21 | 2007-01-19 | Charging circuit for emergency light |
| CN 200780014404 Pending CN101427439A (en) | 2006-04-21 | 2007-04-11 | Emergency lighting device for operating a light source, in particular an LED |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780014224.6A Expired - Fee Related CN101427441B (en) | 2006-04-21 | 2007-01-19 | LED driver circuit |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780014428.XA Expired - Fee Related CN101427440B (en) | 2006-04-21 | 2007-01-19 | Charging circuit for emergency light |
| CN 200780014404 Pending CN101427439A (en) | 2006-04-21 | 2007-04-11 | Emergency lighting device for operating a light source, in particular an LED |
Country Status (2)
| Country | Link |
|---|---|
| CN (4) | CN101427441B (en) |
| ES (1) | ES2357537T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2326147A2 (en) * | 2009-11-19 | 2011-05-25 | Vossloh-Schwabe Deutschland GmbH | Operating control device for operating a light |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201204106D0 (en) | 2012-03-08 | 2012-04-18 | Tridonic Uk Ltd | Lamp unit power supply system |
| EP2663161A1 (en) * | 2012-05-08 | 2013-11-13 | Koninklijke Philips N.V. | LED lighting system |
| CN104837287B (en) * | 2015-06-06 | 2018-03-13 | 韦明肯 | A kind of method of outer light and zero line overbottom pressure dual control emergency light |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5444378A (en) * | 1988-07-13 | 1995-08-22 | Electronic Development Inc. | Battery state of charge monitor |
| US5172009A (en) * | 1991-02-25 | 1992-12-15 | Regents Of The University Of Minnesota | Standby power supply with load-current harmonics neutralizer |
| US5400009A (en) * | 1993-10-07 | 1995-03-21 | Wheelock Inc. | Synchronization circuit for visual/audio alarms |
| US5646502A (en) * | 1995-08-28 | 1997-07-08 | Nsi Enterprises, Inc. | Emergency lighting circuit for shunt-regulated battery charging and lamp operation |
| US5656925A (en) * | 1996-01-22 | 1997-08-12 | Juno Lighting, Inc. | Pulse switching tandem flyback voltage converter |
| DE10025821A1 (en) * | 2000-05-25 | 2002-07-25 | Sickinger Monika | LED light source |
| DE60020567T2 (en) * | 2000-10-31 | 2006-02-02 | Magnetek S.P.A. | Emergency light unit, device containing this unit and control method |
| FI111323B (en) * | 2001-07-04 | 2003-06-30 | Teknoware Oy | Safety light arrangement and safety light device |
| CN2558134Y (en) * | 2001-08-01 | 2003-06-25 | 郁百超 | Ac/dc ups |
| DE10337148A1 (en) * | 2003-08-13 | 2005-03-17 | Sander Elektronik Ag | emergency lighting |
-
2007
- 2007-01-19 CN CN200780014224.6A patent/CN101427441B/en not_active Expired - Fee Related
- 2007-01-19 ES ES07702902T patent/ES2357537T3/en active Active
- 2007-01-19 CN CN200780014407.8A patent/CN101427442B/en not_active Expired - Fee Related
- 2007-01-19 CN CN200780014428.XA patent/CN101427440B/en not_active Expired - Fee Related
- 2007-04-11 CN CN 200780014404 patent/CN101427439A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2326147A2 (en) * | 2009-11-19 | 2011-05-25 | Vossloh-Schwabe Deutschland GmbH | Operating control device for operating a light |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101427440B (en) | 2012-06-27 |
| CN101427442B (en) | 2012-05-30 |
| CN101427439A (en) | 2009-05-06 |
| CN101427441B (en) | 2012-10-10 |
| CN101427441A (en) | 2009-05-06 |
| CN101427440A (en) | 2009-05-06 |
| ES2357537T3 (en) | 2011-04-27 |
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