KR20170136340A - Complex lighting apparatus - Google Patents

Abstract

The present invention discloses a complex lighting apparatus in which an illumination lamp and an emergency lamp are integrated. The complex lighting apparatus includes: an illumination unit for emitting light by corresponding to a change in a rectified voltage; a driver for supplying a current path changed by corresponding to light emission to the illumination unit and regulating a driving current of the current path; a regulator for providing a charging current by using the driving current; a battery for performing a charging operation by using the charging current; and the emergency lamp which emits light by using a charging voltage of the battery if the rectified voltage is at least less than a preset input level. Accordingly, the present invention can improve power efficiency and reduce manufacturing costs.

Description

[0001] COMPLEX LIGHTING APPARATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compound lighting apparatus, and more particularly, to a compound lighting apparatus in which an emergency lamp requiring constant lighting is formed integrally with an illumination lamp including a light emitting diode.

An illumination device is being developed to utilize a light source having a high luminous efficiency with a small amount of energy for energy saving. A representative light source used in the lighting apparatus may be a light emitting diode (LED).

Light emitting diodes have the advantage of being differentiated from other light sources in various factors such as energy consumption, lifetime and light quality. The light emitting diode has characteristics driven by a current. Therefore, an illumination device using a light emitting diode as a light source has a problem that a lot of additional circuits for current driving are required.

In order to solve the above problems, the lighting device has been developed to provide an AC power source to the light emitting diodes in an AC direct type. An illumination device using an AC direct method converts an AC voltage into a rectified voltage and is configured to emit light by current driving using a rectified voltage. The rectified voltage means a full-wave rectified voltage of the AC voltage. The lighting device using the AC direct method uses a rectified voltage without using an inductor and a capacitor, and thus has a good power factor.

The lighting apparatus using the above-described light emitting diode can be used for general lighting in various places such as an interior lamp and a hallway. In addition, the above-mentioned lighting apparatus needs to employ an emergency light which is operated in the inside of the apparatus or in a place adjacent to the apparatus for emergency lighting even in an emergency such as a power failure.

On the other hand, when the emergency light is operated in a place adjacent to the lighting device, the emergency light of the lighting device may be installed above the entrance to recognize the position of the entrance or may be installed on the wall of the hallway or stairway for guidance of movement direction.

The lighting device may employ a battery for emergency lighting of an emergency emergency light. In this case, the battery should be kept in a fully charged state at all times, and a power unit for charging using the AC voltage for charging the battery must be separately provided.

In this way, when the illumination device includes a separate power source for general illumination and emergency lighting, the firing machine requires many circuit configurations and can be formed with a high manufacturing cost. In addition, since the power of the lighting device is inefficiently used, the overall power efficiency is lowered.

Registered Patent No. 10-1320670 (Registered Date: October 15, 2013, Name: Charging system of LED light and electrostatic detection device)

The present invention is characterized in that the general lighting and the emergency lighting for an emergency are realized by a single lighting device by constituting a composite lighting device including an illumination part for general illumination and an emergency light for an emergency situation, And can reduce manufacturing cost and improve power efficiency.

The present invention implements a complex lighting device to include an illumination unit for general illumination and an emergency light for emergency emergency lighting and provides an electric current for illumination of the emergency light using the driving current corresponding to the light emission of the illumination unit, Another object of the present invention is to provide a composite illumination device having high efficiency.

It is a further object of the present invention that the compound lighting device provides the constant illumination by embodying the composite lighting device to include the illumination section for general illumination and the emergency light for emergency emergency lighting.

According to an aspect of the present invention, there is provided a compound lighting apparatus comprising: an illumination unit emitting light corresponding to a change in a rectified voltage; A driver that supplies a current path changed corresponding to light emission to the illumination unit and regulates a drive current of the current path; A regulator for providing a charging current using the driving current; A battery for charging using the charging current; And a emergency lamp that emits light using the charging voltage of the battery when the rectified voltage is at least less than a preset input level.

The present invention also provides a composite illumination device comprising: a battery for providing a charging voltage; A charge control circuit for charging the battery using at least a part of the drive current used for light emission of the illumination unit including the light emitting diode; And at least one light emitting diode, and the emergency light emitting light corresponding to the charging voltage of the battery when the rectified voltage provided for the light emission of the illumination unit is at least less than a predetermined input level.

In the present invention, by configuring the lighting device to include the illumination part for general illumination and the emergency light required for an emergency situation, the general illumination and the emergency illumination for emergency can be realized by one illumination device, And can reduce manufacturing cost and improve power efficiency.

The present invention implements a complex lighting device to include a lighting unit for general illumination and a emergency lighting for emergency situations and provides a current for charging and emergency lighting using the driving current corresponding to the lighting of the lighting unit, The present invention provides a combined illumination device having a plurality of light sources.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a circuit diagram showing a preferred embodiment of a composite illumination device of the present invention. Fig.
2 is a detailed circuit diagram of the driver of Fig.
3 is a detailed circuit diagram of the regulator of FIG.
FIG. 4 is a waveform diagram for explaining the operation of the embodiment of FIG. 1; FIG.
5 is a circuit diagram showing a modification of the embodiment of Fig.
Fig. 6 is a circuit diagram showing another embodiment of the composite illumination device. Fig.
7 is a circuit diagram showing a modified embodiment of Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the terminology used herein is for the purpose of description and should not be interpreted as limiting the scope of the present invention.

The embodiments described in the present specification and the configurations shown in the drawings are preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention and thus various equivalents and modifications Can be.

A light source having a semiconductor light emitting characteristic may include a light emitting diode. The light emitting unit may include a light emitting diode and a light emitting diode. have.

The composite illumination device of the present invention is disclosed in an AC direct method. The AC direct method means that the LED emits light using a rectified voltage obtained by converting AC power. Here, the rectified voltage has a waveform obtained by full-wave rectifying an AC voltage having a sinusoidal waveform as described above. That is, the rectified voltage has a ripple component in which the voltage level rises and falls by a half cycle of the commercial AC voltage. The current supplied to the light emitting diode of the illumination unit corresponding to the rectified voltage obtained by converting the AC power is referred to as a rectified current.

In the present invention, a rectified voltage lower than a preset input level is referred to as an abnormal rectified voltage, and a rectified voltage higher than a preset input level is referred to as a normal rectified voltage. The steady state or abnormal state of the rectified voltage can be exemplarily determined based on whether the peak value of the rectified voltage is detected and the peak value is maintained for a predetermined time below the predetermined input level. The situation in which the abnormal rectified voltage is supplied is referred to as an emergency condition, and the situation in which a normal rectified voltage is supplied is referred to as a normal condition.

The hybrid lighting apparatus of the present invention includes a power supply unit 100, an illumination unit 200, a driver 300, a sensing resistor Rs, a regulator 400, a charging device Cv, a sensing unit 500, A current switch 600, a battery control unit 700, a battery Bat, a selection circuit 850, and an emergency light 950.

In the embodiment of FIG. 1, the illumination unit 200 is configured to receive the rectified voltage provided from the power supply unit 100.

The driver 300 and sensing resistor Rs provide current regulation and current path for light emission of the illumination unit 200.

The charge control circuit includes a regulator 400, a charging device Cv, a current switch 600, a battery control unit 700, and a battery Bat, (Bat).

The emergency situation defined in the present invention can be determined by the sensing signal SEN provided as a result of the sensing operation on the rectified voltage of the sensing unit 500. [ An abnormal rectified voltage for determining an emergency situation can be defined as a case where the rectified voltage is not provided due to a power failure or a voltage lower than a predetermined input level required by the illumination.

The components of the embodiment of FIG. 1 will be described in more detail.

The power supply unit 100 has a configuration for rectifying the alternating-current voltage of the alternating-current power supply and outputting it as a rectified voltage. The power supply unit 100 may include an alternating-current power supply Vs for providing an alternating-current voltage and a rectifying circuit 12 for rectifying the alternating-current voltage and outputting a rectified voltage.

Here, the AC power supply Vs may be a commercial power supply.

The rectifying circuit 12 outputs a rectified voltage obtained by full-wave rectification of the AC voltage. In the embodiment of the present invention, the rise or fall of the rectified voltage can be understood to mean a rise or a fall of the ripple component of the rectified voltage. The current outputted from the rectifying circuit 12 corresponding to the rise or fall of the rectified voltage corresponds to the rectified current described above.

The illumination unit 200 includes light emitting diodes, and the light emitting diodes are divided into one or more light emitting diode groups. The illuminating unit 200 sequentially emits and extinguishes light emitting diode groups according to the increase and decrease of the rectified voltage provided from the power supply unit 100.

The illumination unit 200 of FIG. 1 illustrates the inclusion of four light emitting diode groups (LED1, LED2, LED3, LED4). Each of the light emitting diode groups (LED1, LED2, LED3, LED4) may include one or more light emitting diodes, and one diode code is used for convenience of description.

The driver 300 is configured to provide a current path for the light emitting diode groups LED1 to LED4 by comparing the sensing voltages and reference voltages corresponding to the light emitting diode groups LED1 to LED4, respectively.

The driver 300 includes channel terminals C1 to C4 connected to output terminals of the light emitting diode groups LED1 to LED4, a ground terminal GND for connection to the ground, and a sensing terminal Rs connected to the sensing terminal Rs. Ri. The driver 300 controls the change of the current path between the channel terminals C1 to C4 and the sensing terminal Ri.

The sensing resistor Rs is connected between the driver 300 and the regulator 400 and the ground terminal GND of the driver 300 is connected to a node between the regulator 400 and the sensing resistor Rs. The sensing resistor Rs provides a sensing voltage corresponding to the light emitting states of the light emitting diode groups LED1 to LED4 and repeats the sensing operation so that the regulator 400 is connected in series with the current path in the driver 300 .

The current flowing through the sensing resistor Rs may be changed according to the light emitting state of the light emitting diode groups LED1 to LED4 of the illumination unit 200 and may be defined as the driving current Id.

The regulator 400 is connected in series to the current path of the driver 300 through the sensing resistor Rs to form a divided voltage by the rectified voltage, regulate the divided voltage to a predetermined voltage or less, Charge current. That is, the regulator 400 provides the charging current using the driving current Id provided through the sensing resistor Rs.

The sensing unit 500 senses a rectified voltage output from the power supply unit 100 and provides a sensing operation result. The sensing unit 500 generates a different electric level corresponding to a normal situation in which the rectified voltage is normally supplied and an emergency condition in which the rectified voltage is abnormally supplied And outputs the sensing signal SEN. The sensing unit 500 may provide a sensing signal to the battery control unit 700 and the selection circuit 850, respectively.

The charging element Cv performs charging by the charging current.

The battery Bat performs charging by the current delivered through the current switch and provides the selection circuit 850 with a current corresponding to the charging voltage.

The current switch 600 controls the current flowing from the charging device Cv to the battery Bat to charge the battery Bat and may be configured using an element such as a MOS transistor.

The battery control unit 700 receives the sensing signal SEN and determines the state of the rectified voltage. The battery control unit 700 ensures the flow of current through the current switch 600 for charging the battery Bat when the rectified voltage is equal to or higher than a predetermined input level and the charging voltage of the battery Bat is lower than a predetermined charging level .

If the battery control unit 700 is below the rectified voltage input level or the charging voltage of the battery Bat is equal to or higher than the charging level, the flow of current through the current switch 600 is blocked. The battery control unit 700 receives the sensing signal SEN to determine the state of the rectified voltage and connects the nodes connected to the current switch 600 and the battery Bat in parallel to determine the charging voltage of the battery Bat So that the charging voltage of the battery Bat can be sensed.

Selection circuit 850 switches providing current to emergency light 950 according to the state of sensing signal SEN.

The emergency lamp 950 may be connected in series with a resistor Rr for current regulation and at least one or more light emitting diodes L1 to L4 and performs emergency lighting by the current provided by the selection circuit 850. [

The light emitting diodes L1 to L4 may be formed on the same substrate as the illumination unit 200 and the light emitting diodes L1 to L4 may be disposed adjacent to and corresponding to the respective light emitting diode groups.

The number of the light emitting diodes L1 to L4 included in the emergency light 950 may be equal to or less than that of the illumination unit 200 .

In the embodiment of FIG. 1, the battery Bat may be designed to have a greater charge capacity than the charge element Cv.

Further, in the embodiment of Fig. 1, the charging element Cv can be excluded from the design according to the manufacturer's intention. In this case, the current switch 600 is configured to control the current flowing from the regulator 400 to the battery Bat.

The configuration and operation of the driver 300 among the components shown in FIG. 1 will be described in more detail.

The driver 300 provides a current path corresponding to the light emission of each of the light emitting diode groups LED1 to LED4 and regulates the flow of the driving current Id provided in the sensing resistor Rs in the current path.

The light emitting diode groups LED1 to LED4 of the illumination unit 200 sequentially emit light or extinguish corresponding to the change of the rectified voltage.

The driver 300 provides a current path corresponding to the light emission of each of the light emitting diode groups LED1 to LED4 when the rectified voltage rises and sequentially reaches the light emitting voltages of the light emitting diode groups LED1 to LED4.

Here, the light emitting voltage V4 for emitting the light emitting diode group LED4 is defined as a voltage for causing all the light emitting diode groups LED1 to LED4 to emit light. The emission voltage V3 for emitting the light emitting diode group LED3 is defined as a voltage for emitting all of the light emitting diode groups LED1 to LED3. The light emitting voltage V2 for emitting the light emitting diode group LED2 is defined as a voltage for causing all the light emitting diode groups LED1 and LED2 to emit light. The emission voltage V1 for emitting the light emitting diode group LED1 is defined as a voltage for causing only the light emitting diode group LED1 to emit light.

The driver 300 includes switching circuits 31 to 34 for providing a current path to the light emitting diode groups LED1 to LED4 as shown in FIG. 2, a reference voltage supply unit (not shown) for providing reference voltages VREF1 to VREF4 20).

The reference voltage supply unit 20 may be implemented by providing reference voltages VREF1 to VREF4 at various levels according to the manufacturer's intention.

The reference voltage supply unit 20 may include a plurality of series-connected resistors to which a constant voltage VDD is applied, and may be configured to output reference voltages VREF1 to VREF4 of different levels for each node between the resistors. The reference voltage supply unit 20 may be configured to include independent voltage supplies that provide reference voltages VREF1 to VREF4 of different levels, respectively, The reference voltage supply unit 20 shares the ground with the sensing resistor Rs and is connected to the ground terminal GND for this purpose.

The reference voltages VREF1 to VREF4 at different levels have the lowest voltage level of the reference voltage VREF1 and the highest voltage level of the reference voltage VREF4, and the reference voltage gradually increases to the higher level in the order of the reference voltages VREF1, VREF2, VREF3, . ≪ / RTI >

Here, the reference voltage VREF1 has a level for turning off the switching circuit 31 at the time when the light emitting diode group LED2 emits light. More specifically, the reference voltage VREF1 may be set to a level lower than the sensing voltage formed corresponding to the light emission of the light emitting diode group LED2.

The reference voltage VREF2 has a level for turning off the switching circuit 32 at the time when the light emitting diode group LED3 emits light. More specifically, the reference voltage VREF2 may be set to a level lower than the sensing voltage formed corresponding to the light emission of the light emitting diode group LED3.

The reference voltage VREF3 has a level for turning off the switching circuit 33 at the time when the light emitting diode group LED4 emits light. More specifically, the reference voltage VREF3 may be set to a level lower than the sensing voltage formed corresponding to the light emission of the light emitting diode group LED4.

It is preferable that the reference voltage VREF4 is set to be higher than the sensing voltage in the upper limit level region of the rectified voltage.

On the other hand, the switching circuits 31 to 34 are commonly connected to the sensing resistor Rs through the sensing terminal Ri for current regulation and current path formation.

The switching circuits 31 to 34 form a current path corresponding to the light emission of the illumination unit 200 by comparing the sensing voltage of the sensing resistor Rs with the reference voltages VREF1 to VREF4 of the reference voltage generation circuit 20, do.

The switching circuits 31 to 34 are provided with a higher level reference voltage as they are connected to the light emitting diode group distant from the position where the rectified voltage is applied.

It is preferable that each of the switching circuits 31 to 34 includes a comparator 50 and a switching element, and the switching element is composed of an NMOS transistor 52.

The comparator 50 of each of the switching circuits 31 to 34 outputs a result of comparing the reference voltage with the sensing voltage at the output terminal when a reference voltage is applied to the positive input terminal (+) and a sensing voltage is applied to the negative input terminal Output.

The NMOS transistor 52 of each of the switching circuits 31 to 34 performs a switching operation for controlling the flow of the driving current Id in accordance with the output of each comparator 50 applied to the gate.

The operation and configuration of the regulator 400 among the components shown in FIG. 1 will be described in detail with reference to FIG.

The regulator 400 includes an output resistor Rc connected in series to the current path of the driver 300 through a sensing resistor Rs. With the above configuration, the drive current Id can flow into the output resistor Rc, and as a result, a divided voltage due to the rectified voltage is formed in the output resistor Rc.

The regulator 400 includes a voltage holding circuit for regulating the divided voltage of the output resistor Rc to a predetermined level or less.

The voltage holding circuit may be configured to control the level of the divided voltage by regulating the current of the output resistor Rc using the Zener diode Zd1. To this end, the voltage holding circuit may include an NPN bipolar transistor Q1, a zener diode Zd1, and a resistor Rd. The NPN bipolar transistor Q1 is connected in parallel with the output resistor Rc to control the current flowing through the output resistor Rc and the resistor Rd is connected between the base of the NPN bipolar transistor Q1 and the ground , The zener diode Zd1 is configured such that the base voltage of the NPN bipolar transistor Q1 does not exceed a predetermined level.

The NPN bipolar transistor Q1 disperses the current delivered to the output resistance Rc to the ground due to the change of the base voltage when the divided voltage applied to the output resistance Rc rises above a certain level. As a result, the voltage holding circuit regulates the divided voltage applied to the output resistor Rc from rising above a certain level.

With the above configuration, the regulator 400 can provide the charging device Cv with a current corresponding to the divided voltage applied to the output resistance Rc. The regulator 400 is preferably configured to provide current to the charging element Cv via a diode Ds configured in the forward direction.

For the sake of convenience of explanation, the embodiment of the present invention described above includes a first operation in which a current path is provided by a driver 300, a second operation in which a battery Bat is charged and an emergency light is performed using an emergency light 950 And can be described separately as an operation.

The first operation according to the configuration of the embodiment of the present invention can be explained with reference to Fig.

When the rectified voltage Vrec is in the initial state, the reference voltages VREF1 to VREF4 applied to the positive input terminal (+) of each of the switching circuits 31 to 34 are higher than the sensing voltage applied to the negative input terminal (- Lt; / RTI > At this time, the light emitting diode groups (LED1 to LED4) are in an extinction state.

Thereafter, when the rectified voltage Vrec rises and reaches the light emission voltage V1, the light emitting diode group LED1 emits light. When the light emitting diode group LED1 emits light, the switching circuit 31 connected to the light emitting diode group LED1 provides a current path. That is, the current path is formed by the switching circuit 31.

When the light emitting diode group LED1 emits light, the flow of the driving current Id to the current path by the switching circuit 31 is started. However, since the level of the sensing voltage at this time is low, the turn-on state of the switching circuits 31 to 34 is not changed.

Then, in the course of the rectified voltage Vrec reaching the light emission voltage V2, the drive current Id is regulated so as to maintain a constant amount by the regulation operation of the switching circuit 31. [

When the rectified voltage Vrec reaches the light emission voltage V2, the light emitting diode group LED2 emits light. Then, when the light emitting diode group LED2 emits light, the switching circuit 32 connected to the light emitting diode group LED2 provides a current path. At this time, the light emitting diode group LED1 also maintains the light emitting state.

When the light emitting diode group LED2 emits light, the flow of the driving current Id starts in the rectification path by the switching circuit 32, and the level of the sensing voltage at this time is higher than the reference voltage VREF1. Therefore, the NMOS transistor 52 of the switching circuit 31 is turned off by the output of the comparator 50. That is, the switching circuit 31 is turned off, and the switching circuit 32 provides a selective current path corresponding to the light emission of the light emitting diode group LED2.

Then, in the course of the rectified voltage Vrec reaching the light emission voltage V3, the drive current Id is regulated so as to maintain a constant amount by the regulation operation of the switching circuit 32. [

When the rectified voltage Vrec reaches the light emission voltage V3, the light emitting diode group LED3 emits light. When the light emitting diode group LED3 emits light, the switching circuit 33 connected to the light emitting diode group LED3 provides a current path. At this time, the light emitting diode groups LED1 and LED2 also maintain the light emitting state.

When the light emitting diode group (LED3) emits light, the flow of the driving current Id starts in the rectification path by the switching circuit 33, and the level of the sensing voltage at this time is higher than the reference voltage VREF2. Therefore, the NMOS transistor 52 of the switching circuit 32 is turned off by the output of the comparator 50. That is, the switching circuit 32 is turned off, and the switching circuit 33 provides a selective current path corresponding to the light emission of the light emitting diode group LED3.

 Then, in the course of the rectified voltage Vrec reaching the light emission voltage V4, the drive current Id is regulated so as to maintain a constant amount by the regulation operation of the switching circuit 33. [

When the rectified voltage Vrec reaches the light emission voltage V4, the light emitting diode group LED4 emits light. When the light emitting diode group LED4 emits light, the switching circuit 34 connected to the light emitting diode group LED4 provides a current path. At this time, the light emitting diode groups (LED1, LED2, LED3) also maintain the light emitting state.

When the light emitting diode group LED4 emits light, the flow of the driving current Id starts to flow in the rectification path by the switching circuit 34, and the level of the sensing voltage at this time is higher than the reference voltage VREF3. Therefore, the NMOS transistor 52 of the switching circuit 33 is turned off by the output of the comparator 50. That is, the switching circuit 33 is turned off, and the switching circuit 34 provides a selective current path corresponding to the light emission of the light emitting diode group LED4.

Thereafter, the rectified voltage Vrec rises to the upper limit level and then begins to fall.

In the process in which the rectified voltage Vrec reaches the upper limit level, the drive current Id is regulated so as to maintain a constant amount by the regulation operation of the switching circuit 34. [

Conversely, when the rectified voltage Vrec is gradually decreased from the upper limit level to the light emission voltages V4, V3, V2, and V1 or less, the light emitting diode groups LED4 to LED1 are sequentially extinguished. In response to the extinction of the light emitting diode groups (LED4 to LED1), the driving current Id is also stepwise reduced.

As described above, the driver 300 can change the current path in accordance with the light emitting state change of the light emitting diode groups LED1 to LED4.

Meanwhile, the embodiment of the present invention performs a second operation of charging the battery Bat and constantly lighting the emergency light 950.

First, an operation in which the charging device Cv is charged by the regulator 400 will be described.

When the rectified voltage Vrec changes at or above the light emission voltage V1, the driver 300 provides a current path corresponding to light emission, and a drive current Id flows in the current path. The drive current Id has a waveform that increases or decreases stepwise in accordance with the change of the rectified voltage Vrec.

The drive current Id flows through the sensing resistor Rs to the output resistor Rc and a divided voltage due to the driving current Id is formed in the output resistor Rc. As a result, the rectified voltage Vrec is divided into the driver 300, the sensing resistor Rs, and the output resistor Rc, and the divided voltage corresponding to the change of the rectified voltage Vrec is formed in the output resistor Rc.

Therefore, a first current due to the divided voltage can be supplied to the charging element Cv via the diode Ds, and the charging element Cv can charge the charging voltage by the first current supplied through the diode Ds . The charging voltage of the charging element Cv may be set to match the rating of the battery Bat.

The regulator 400 can control the overvoltage to be formed in the charging element Cv by the voltage holding circuit including the NPN bipolar transistor Q1, the Zener diode Zd1 and the resistor Rd.

In the voltage holding circuit, the voltage applied to the base of the NPN bipolar transistor (Q1) is regulated by the zener diode (Zd1). Therefore, the divided voltage of the output resistance Rc is kept below a predetermined level, and it can be controlled that overcharge voltage is formed in the charging element Cv.

The charging element Cv provides a first current that is controlled in charge as described above and changed through the current switch 600 corresponding to the charging capacity.

The current switch 600 ensures or cuts off the flow of the first current from the charging device Cv to the battery Bat under the control of the battery control unit 700. [

In the embodiment of FIG. 1, when the design of the charging device Cv is excluded in accordance with the manufacturer's intention, the battery Bat is charged by the first current of the regulator 400 by turning on the current switch 600 . At this time, the charging method of the battery Bat is the same as charging the charging element Cv described above, so that a duplicate description thereof will be omitted.

The battery control unit 700 determines whether the rectified voltage is equal to or greater than the input level by the sensing signal SEN and senses the battery Bat to judge whether the charging voltage is lower than a predetermined charging level to control the switching operation of the current switch 600 do.

As a result, the battery controller 700 ensures the flow of current through the current switch 600 when the rectified voltage is equal to or higher than the input level and the charge voltage of the battery Bat is less than the charge level. Therefore, the battery Bat is charged by the current supplied via the current switch 600. [

Alternatively, if the rectified voltage is below the input level or the charging voltage of the battery Bat is equal to or higher than the charging level, the battery controller 700 blocks the current flow through the current switch 600. Therefore, the charging of the battery Bat is stopped.

The battery control unit 700 controls the charging of the battery Bat by the sensing signal SEN and the sensing signal SEN is a signal having a high level and a low level corresponding to the case where the rectified voltage is higher than or equal to the input level, Level voltage, respectively, or expressed as a logical 1 and a logical 0, respectively.

The selection circuit 850 can switch the provision of the current to the emergency light 950 according to the state of the sensing signal SEN.

Emergency light 950 is illuminated for emergency lighting if current is provided by selection circuit 850. [ That is, the emergency lamp 950 is turned on in response to the rectified voltage lower than the input level, and extinguished in response to the rectified voltage higher than the input level. If the emergency situation where a rectified voltage lower than the input level is provided is maintained for a long time, the emergency light 950 can maintain the lighting while a current is supplied at a level sufficient for light emission according to the capacity of the battery Bat. Then, when the rectified voltage returns to the input level or higher, the emergency light 950 is turned off.

1, the sensing unit 500 senses a rectified voltage output from the power supply unit 100 and provides a sensing operation result. However, according to the manufacturer, the sensing unit 500 senses an AC voltage output from the AC power supply Vs, May be configured to provide operational results. The above-described configuration can be easily modified by those skilled in the art to which the present invention is perceived, so that an example and a detailed description thereof will be omitted.

The embodiment of the present invention is configured to emit the illumination lamp 200 when the rectified voltage is equal to or higher than the input level and to emit the emergency light 950 when the rectified voltage is lower than the input level. Here, the illumination lamp 200 performs sequential light emission corresponding to the rise and fall of the rectified voltage. Then, the emergency light 950 emits light by the current supplied in the constant current state, and the current is regulated by the resistance Re.

A driving current Id generated by light emission of the illumination lamp 200 is supplied to the regulator 400 and a current corresponding to the divided voltage of the rectified voltage is supplied to the battery Bat through the current switch 600. [ Therefore, the battery Bat can maintain a fully charged state. When the charging voltage of the battery Bat is equal to or higher than the charging level, the supply of the current to the battery Bat is stopped and the battery Bat is prevented from being overcharged.

When a power failure corresponding to an emergency occurs, the illumination lamp 200 of the embodiment of the present invention is extinguished because a minimum level of rectified voltage for light emission is not guaranteed. Therefore, the charging of the battery Bat is stopped, and only the emergency light 950 is kept lit by the current of the battery Bat.

In addition, the embodiment of the present invention can exclude the configuration of the selection circuit 850, and in this case, the emergency light 950 is directly supplied with a current for light emission from the battery Bat. Therefore, the emergency light 950 can maintain the constantly lit state, and emits light like the illumination unit 200 when the rectified voltage is equal to or higher than the input level. When the rectified voltage is lower than the input level, only the emergency light 950 emits light. That is, the emergency light 950 can maintain the normal lighting.

In the meantime, unlike FIG. 1, the present invention can be modified as shown in FIG. 5 so that the emergency light 950 can be lit at all times.

5, the selection circuit 870 selectively outputs the divided voltage of the rectified voltage or the charging voltage of the battery Bat via the sensing resistor Rs according to the state of the sensing signal SEN to the emergency light 950 As shown in FIG.

Therefore, the emergency light 950 can maintain the normal lighting state. That is, when the rectified voltage is equal to or higher than the input level, the emergency light 950 is connected to the sensing resistor Rs through the selection circuit 870, so that it can receive the divided voltage of the rectified voltage and emit light like the illumination unit 200. Alternatively, the emergency light 950 is connected to the battery Bat through the selection circuit 870 in the case of emergency in which the rectified voltage is lower than the input level, so that the charging voltage of the battery Bat can be supplied and emit light. At this time, the illumination lamp 200 is turned off in the above-mentioned emergency situation.

In the meantime, the present invention can be implemented as shown in FIG. 6 differently from FIG. 1 in the sensing of an emergency situation.

Referring to FIG. 6, the sensing unit 550 is configured to sense the driving current output through the sensing resistor Rs. 6 differs from that of FIG. 1 in that the sensing unit 550 senses a driving current and outputs a sensing signal SEN corresponding to the sensing result, and the other components and operations are the same, The description is omitted.

The sensing unit 550 of FIG. 6 senses the amount of the driving current flowing through the sensing resistor Rs. The sensing unit 550 determines that the rectified voltage is less than a preset input level when the driving current flowing through the sensing resistor Rs flows below a predetermined sensing level for a period longer than one period of the rectified voltage.

That is, the sensing signal SEN of the sensing unit 550 varies depending on whether the driving current flowing through the sensing resistor Rs is less than a preset sensing level or a predetermined sensing level or more. In response to the change of the sensing signal SEN as described above, the battery control unit 700 and the selection circuit 850 perform the same operations as described with reference to FIG.

On the other hand, the present invention can be implemented as shown in FIG. The embodiment of FIG. 7 includes the sensing unit 550 of FIG. 6 for sensing the drive current and the selection circuit 870 of FIG. 5 for steady illumination of the emergency light 950. The remaining components and operations in the embodiment of FIG. 7 are the same as those of the other embodiments, and a duplicate description thereof will be omitted.

That is, the embodiment of FIG. 7 determines the emergency state by the sensing unit 550 sensing the amount of the driving current flowing through the sensing resistor Rs. The selection circuit 870 of FIG. 7 outputs the divided voltage of the rectified voltage or the charging voltage of the battery Bat via the sensing resistor Rs according to the state of the sensing signal SEN of the sensing unit 550, Gt; 950 < / RTI >

Therefore, the emergency light 950 of Fig. 7 can be constantly turned on regardless of the state of the rectified voltage.

As described above, the present invention can realize a complex lighting apparatus having an illumination unit and a emergency light, and the complex lighting apparatus is charged with light for emitting an emergency light using a driving current according to the light emission of the illumination unit, And the manufacturing cost can be reduced.

The battery may be charged using the driving current while the illumination of the illumination unit is maintained, and the emergency light may be maintained using the current of the battery when the battery is in an emergency. Therefore, the composite illumination device of the present invention can have improved power efficiency.

Claims (16)

An illumination unit emitting light corresponding to a change in a rectified voltage;
A driver that supplies a current path changed corresponding to light emission to the illumination unit and regulates a drive current of the current path;
A regulator for providing a charging current using the driving current;
A battery for charging using the charging current; And
And an emergency lamp that emits light using a charging voltage of the battery when the rectified voltage is at least less than a preset input level. The method according to claim 1,
A current switch for controlling the charging current flowing from the regulator to the battery; And
If the rectified voltage is greater than or equal to the input level and the charging voltage of the battery is less than a predetermined charging level, ensure the flow of the charging current through the current switch for charging the battery, And a battery controller for blocking the flow of the charging current through the current switch when the charging voltage of the battery is equal to or higher than the charging level. The fuel cell system according to claim 1, wherein the regulator includes:
And a sensing resistor connected in series to the driver to form a divided voltage by the rectified voltage, regulate the divided voltage, and provide the charging current corresponding to the regulated voltage. The method according to claim 1,
Further comprising a charging element for performing charging by a charging current of the regulator,
Wherein the charging current is supplied to the battery after being charged in the charging element. The method according to claim 1,
And a selection circuit for providing the emergency lamp with a current corresponding to the charging voltage of the battery when the rectified voltage is lower than the input level. The method according to claim 1,
Further comprising a selection circuit for providing a divided voltage of the rectified voltage to the emergency lamp when the rectified voltage is equal to or greater than the input level and providing the charging voltage of the battery to the emergency lamp when the rectified voltage is less than the input level, Device. The method according to claim 1,
And a sensing unit for sensing the rectified voltage to provide a sensing signal roll,
And determines whether the rectified voltage is less than the input level using the sensing signal. The method according to claim 1,
And a sensing unit for sensing the driving current outputted from the driver,
And determines whether the rectified voltage is less than the input level using the sensing signal. 9. The method of claim 8,
A selection circuit for providing the divided voltage of the rectified voltage to the emergency lamp when the rectified voltage is equal to or higher than the input level by the sensing signal and providing the charging voltage of the battery to the emergency lamp when the rectified voltage is lower than the input level, Further comprising: A battery providing a charging voltage;
A charge control circuit for charging the battery using at least a part of the drive current used for light emission of the illumination unit including the light emitting diode; And
And at least one light emitting diode for emitting light by using the charge voltage of the battery when the rectified voltage provided for the light emission of the illumination unit is at least less than a predetermined input level, . The charge control circuit according to claim 10,
A regulator for providing a charging current using the driving current;
A current switch for controlling the charging current flowing from the regulator to the battery; And
To ensure the flow of current through the current switch for charging the battery if the alternating voltage is above the input level and the charging voltage of the battery is below a predetermined charging level and if the alternating voltage is below the input level And a battery controller for blocking the flow of the current through the current switch when the charging voltage of the battery is equal to or higher than the charging level. 11. The method of claim 10,
And a selection circuit for providing the emergency lamp with a current corresponding to the charging voltage of the battery when the rectified voltage is lower than the input level. 11. The method of claim 10,
And a sensing unit for sensing the rectified voltage to provide a sensing signal roll,
And determines whether the rectified voltage is less than the input level using the sensing signal. 11. The method of claim 10,
Further comprising a sensing unit for providing a sensing signal sensing at least a part of the driving current used for light emission of the illumination unit,
And determines whether the rectified voltage is less than the input level using the sensing signal. 11. The method of claim 10,
Further comprising a selection circuit for providing a divided voltage of the rectified voltage to the emergency lamp when the rectified voltage is equal to or higher than the input level and providing the charging voltage of the battery to the emergency lamp when the rectified voltage is lower than the input level Device. 11. The method of claim 10,
Wherein the emergency light includes a regulation resistor for regulating a current for light emission.

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