KR101540655B1 - Control circuit for emergency light - Google Patents

Abstract

The present invention relates to a control circuit for an emergency light. More specifically, a processing circuit related to power supply is not equipped in each of a commercial power supply line to operate a general light and an emergency power supply line to operate an emergency light, but integrated to connect the general light and the emergency light with a single driving power output terminal, in such a manner that the general light is usually turned off or converted into a power saving mode (a saving lamp with brightness of 20%) in accordance with circumferential motion or/and illumination, and only when an object is sensed, the general light is lit up with brightness of 100%. The processing circuit related to power supply is not equipped in each of the commercial power supply line to operate the general light and the emergency power supply line to operate the emergency light, but integrated to connect the general light and the emergency light with the single driving power output terminal, thereby preventing installation costs from being increased due to repeated installation of the processing circuit related to power supply. Moreover, installation and maintenance processes are simplified. In addition, the control circuit for an emergency light enables the general light to be usually turned off or converted into a power saving mode (a saving lamp with brightness of 20%) in accordance with circumferential motion or/and illumination, and only when an object is sensed, the general light is lit up with brightness of 100%, thereby preventing unnecessary consumption of power due to the general light which is always turned on.

Description

[0001] CONTROL CIRCUIT FOR EMERGENCY LIGHT [0002]

The present invention relates to an emergency light control circuit, and more particularly, to an emergency light control circuit which includes a commercial power supply line for driving a general lighting lamp and an emergency power supply line for driving the emergency light, Normally, the general lighting is switched off or the power saving mode (20% brightness saving, etc.) is switched according to the movement and / or illumination of the surroundings, and only when the object is detected, the brightness of 100% To the emergency light control circuit.

Generally, the dictionary meaning of emergency light (Emergency Light) is very urgent, or to alert others when it is urgent, etc. Emergency lights "Emergency light" It refers to the lighting lamp installed in living room, evacuation passage and so on so that evacuation activity can be done automatically.

Such an emergency light, especially an emergency light, can be used for lighting a light source for a certain period of time using an auxiliary power source built in the emergency light system in case of a fire or a power outage in a high-rise building, a public office, a sports arena, The emergency light system indicating the location of the emergency exit is necessarily installed for safe evacuation.

Conventionally, an emergency light for fire escape has merely a smoke detection function or a heat sensing function, receives a detection signal, receives it through a wire, and emits an emergency light so as to evacuate the emergency light. The charging circuit is included so that the lighting can be continued for a certain period of time.

However, since the conventional emergency lighting lamp uses a fluorescent lamp mainly as a light source, it consumes a lot of electric power and it is difficult to continue lighting for a long time, and when the smoke generated by the fire is large, the light transmission amount is drastically reduced.

Recently, in order to solve these problems, it is connected to a commercial power supply line (KEPCO line) at ordinary times and is connected to an emergency power supply device such as a self-generator (emergency power supply line) only when a power failure or an emergency occurs, A technique has been introduced that allows the light to be turned on.

Since the power supply line of the emergency light such as the general lighting lamp and the emergency light is separately installed, the commercial power line and the system and the emergency light line and the system should be provided respectively. Therefore, the effort and cost There is a problem that it takes a lot of time.

Especially, in Korea, which does not have a clear energy source, it has been emphasized the efforts to reduce the expenditure of lighting for general lighting, and as a part thereof, measures have been taken to reduce the power consumption of the public lighting. As a result, a common lighting lamp that is automatically blinked by a sensor that senses the body has been developed and now, most of the buildings have such a power saving lamp.

However, recently, as fire accidents in high-rise buildings have become more frequent and damage to people and property has increased, interest in fire-fighting safety facilities has increased. As a result, the application of the Fire Prevention Law, The control law is becoming increasingly strict. For example, the Fire Service Act stipulates that the public lighting should be on at all times in the event of an emergency such as a fire.

As a result, there arises a conflict between the national purpose of energy saving (power saving) and the fire fighting laws that prescribe fire safety. In other words, since the conventional public lighting lamp is operated by the body detection sensor that emphasizes the power saving, the emergency lighting is turned off when there is no human movement even if a fire occurs.

Hereinafter, the literature on the prior art of the power supply system of the conventional emergency lighting lamp or the emergency lighting lamp will be described as follows.

Document 1: Korean Patent Registration No. 10-1204642 (Emergency Lighting System; filed on May 12, 2011).

Literature 2: Korean Patent Registration No. 10-0438026 (Connection device of a luminaire for use at all times and for emergency use; filing date: May 09, 2003).

The present invention, which is created in consideration of the above problems, integrates a commercial power supply line for driving a general lighting lamp and an emergency power supply line for driving an emergency lamp, without providing a power supply related processing circuit, It is connected to general light and emergency light. Normally, it turns off the general light according to the movement and / or illumination of the surroundings, switches to the power saving mode (20% brightness saving, etc.) and lights only at 100% So as to provide an emergency light control circuit.

In order to achieve the above object, the present invention provides a plasma processing apparatus comprising: a filter unit (11) for intercepting, absorbing or stabilizing an electromagnetic wave of an AC power supplied through a commercial power supply line (PL1); A DC converting unit 1 (12) for reducing the AC power applied from the filter unit (11), filtering the pulsating current, and converting the pulsating voltage to a constant voltage; A DC converting unit 2 (13) for reducing the AC power supplied through the emergency power supply line (PL2), filtering the pulsating current and converting it into a constant voltage; A sensor unit 14 for sensing ambient motion and / or illumination change and outputting power to a predetermined level with respect to the detection signal; And outputs the DC power according to the difference between the power outputted from the sensor unit 14 and the power outputted from the DC converting unit 1 12. In an emergency, A driving voltage control unit 15 for outputting a DC power according to a difference value of power supplied from the DC converting unit 2 (13) in a state where the commercial power supply line (PL1) is shut off; And a constant current switching controller 16 for outputting the power outputted from the driving voltage controller 15 while maintaining a constant DC voltage.

According to an embodiment of the present invention, a power supply line for driving a general illumination lamp and an emergency power supply line for driving an emergency lamp are integrated into a single driving power output stage, By connecting the illumination lamp and the emergency light, it is possible to prevent the installation cost from being increased due to the redundant installation of the processing circuit related to the power supply, and to simplify the installation and maintenance work.

In addition, according to the present invention, a normal illumination lamp is turned off or a power saving mode (20% brightness saving or the like) is normally performed according to the motion and / or illumination of the surroundings, It is possible to obtain an effect of preventing the unnecessary consumption of electric power because the ordinary illumination lamp is constantly turned on.

1 is a block diagram showing a circuit configuration of the present invention;

The present invention is described below with reference to the accompanying drawings.

1 and 2, the emergency light control circuit 10 according to the present invention includes a filter unit 11 for blocking, absorbing, or stabilizing an electromagnetic wave of an AC power supplied through a commercial power supply line PL1 ); A DC converting unit 1 (12) for reducing the AC power applied from the filter unit (11), filtering the pulsating current, and converting the pulsating voltage to a constant voltage; A DC converting unit 2 (13) for reducing the AC power supplied through the emergency power supply line (PL2), filtering the pulsating current and converting it into a constant voltage; A sensor unit 14 for detecting a change in ambient motion and / or illumination and outputting a waveform of a preset level for the detection signal; The DC power is outputted in accordance with the difference between the waveform output from the sensor unit 14 and the power outputted from the DC converter 1 (12), and in an emergency, the waveform output from the sensor unit A driving voltage control unit 15 for outputting a DC power according to a difference value of power supplied from the DC converting unit 2 (13) in a state where the commercial power supply line (PL1) is shut off; And a constant current switching control unit 16 for outputting the power outputted from the driving voltage control unit 15 while maintaining a constant level of DC voltage.

In the present invention, the commercial power supply line PL1 is a commercial AC power supply path or a supply device supplied through a line provided by KEPCO, and includes a cutoff circuit including a fuse or a relay that cuts off power in an emergency .

Meanwhile, in the present invention, the filter unit 11 divides (divides or divides) the noise voltage by combining the principle that the inductor has a high impedance in proportion to the frequency and the principle that the capacitor has a low impedance in inverse proportion to the frequency / RTI > filter circuit.

In the meantime, in the present invention, the DC converter 1 (12) comprises a half-wave or full-wave rectifying circuit for filtering a commercial AC power source into a pulsating current existing only in a positive voltage, and an inductor and a capacitor, Circuit.

In the present invention, the emergency power supply line PL2 may be an emergency AC power supply path or a supply device or a charging circuit or a charger supplied through a power supply line of a self-generator installed in each building or a home.

In the meantime, in the present invention, the DC converting unit 2 (13) comprises a half-wave or full-wave rectifying circuit for filtering an emergency AC power source into a pulsating current existing only in a positive voltage, Circuit.

In addition, the sensor unit 14 of the present invention includes a sensor 14a provided around a space in which general illumination lamps and emergency lights are installed, and detects motion generation and illumination. A sensor control circuit (14b) for detecting a detection signal of the sensor (14a) and outputting a waveform of a predetermined level in accordance with the detection signal; And a sensor power supply circuit 14c for transmitting and operating the power to the sensor control circuit 14b only when the direct current converter 1 (12) operates.

At this time, the sensor 14a may be a motion sensor for sensing movement of the surroundings or an illuminance sensor for sensing the amount of surrounding light.

The sensor control circuit 14b converts the analog signal, which is a detection signal of the sensor 14a, into a digital signal and outputs a signal of a predetermined level according to the value of the digital signal. Lt; / RTI >

Also, the sensor power supply circuit 14c may be a power supply circuit that converts and supplies the power to the sensor control circuit 14b.

The driving voltage control unit 15 of the present invention includes a PFC (Power Factor Correction) for compensating a power factor, a level of a waveform output from the sensor unit 14, And outputs the DC power corresponding to the duty ratio according to the reference waveform value input from the oscillation circuit different from the sum of the sum or sum of the power levels output from the first power supply 12, A DC voltage corresponding to a duty ratio according to a waveform and a reference waveform value input from a separate oscillation circuit and an average value of the sum or sum of the power supply levels output from the DC conversion section 2 (13) in a state where the commercial power supply line (PL1) And a PWM control circuit for outputting power.

The driving voltage control unit 15 includes a PFC for compensating the power factor and a driving voltage control unit 15 for controlling the duty ratio of the driving voltage according to the difference between the level of the waveform output from the sensor unit 14 and the power level output from the DC- And in the event of an emergency, the level of the waveform output from the sensor unit 14 and the level of the power supply level output from the DC converting unit 2 (13) in a state in which the commercial power supply line PL1 is shut off And a PWM control circuit for outputting a DC power corresponding to the duty ratio according to the difference value.

The driving voltage control unit 15 includes a PFC for compensating the power factor and a control unit for controlling the driving voltage control unit 15 in accordance with the difference between the level of the waveform output from the sensor unit 14 and the power level output from the DC- The level of the waveform output from the sensor unit 14 and the level of the commercial power supply line PL1 are cut off in the event of an emergency when the level is set (high level if there is a large difference and low level if there is no difference) Since the difference value of the power supply level output from the DC converting unit 2 (13) (the sensor unit 14 does not operate because the power is not supplied from the DC converting unit 1 12 in the emergency state, And a comparison control circuit for outputting a DC power of a predetermined level (high level because there are many differences) according to the difference between the high level of the first and second portions 13 and 13).

Meanwhile, the constant current switching controller 16 may be a switching regulator circuit or an element that outputs the power outputted from the driving voltage controller 15 while maintaining a constant DC voltage.

Hereinafter, the operation of the present invention will be described.

First, the present invention includes a filter unit 11 for intercepting, absorbing or stabilizing an electromagnetic wave of an AC power supplied through a commercial power supply line PL1; A DC converting unit 1 (12) for reducing the AC power applied from the filter unit (11), filtering the pulsating current, and converting the pulsating voltage to a constant voltage; A DC converting unit 2 (13) for reducing the AC power supplied through the emergency power supply line (PL2), filtering the pulsating current and converting it into a constant voltage; A sensor unit 14 for detecting a change in ambient motion and / or illumination and outputting a waveform of a preset level for the detection signal; The DC power is outputted in accordance with the difference between the waveform output from the sensor unit 14 and the power outputted from the DC converter 1 (12), and in an emergency, the waveform output from the sensor unit A driving voltage control unit 15 for outputting a DC power according to a difference value of power supplied from the DC converting unit 2 (13) in a state where the commercial power supply line (PL1) is shut off; And a constant current switching control unit (16) for outputting the power outputted from the driving voltage control unit (15) while maintaining a constant level of DC voltage.

In the present invention as described above, when AC power is input through the commercial power supply line PL1, the inductor combines the principle of increasing the impedance in proportion to the frequency and the principle of reducing the impedance inversely proportional to the frequency of the capacitor The filter unit 11 reduces and stabilizes the electromagnetic wave by dividing or dividing the noise voltage in the AC power source.

As described above, the AC power whose electromagnetic wave has been reduced and stabilized is filtered through the half-wave or full-wave rectifying circuit of the DC converting section 1 (12) into the pulsating current existing only in the positive voltage, Level voltage and outputs the same.

The output of the DC-DC converter 1 (12) is applied to the sensor power supply circuit 14c of the sensor unit 14, converted to the operating power supply of the sensor control circuit 14b, (14b) outputs a predetermined waveform according to a sensing signal of the sensor, that is, a change in ambient motion and / or illumination.

As described above, the waveform output from the sensor control circuit 14b is input to the PWM control circuit of the driving voltage control unit 15 after the power factor is compensated (may not be applied) The control unit 15 outputs a direct current (DC) signal corresponding to the duty ratio according to a reference waveform input from a separate oscillation circuit and the sum of the level of the waveform output from the sensor unit 14 and the power level output from the DC- And outputs power.

The DC power output as described above is converted into a DC voltage of a constant level by the constant current switching controller 16, and is output while being maintained in that state, and is provided to the general illumination light side.

In this case, the sensor control circuit 14b transmits a high-level waveform to the driving voltage control unit 15 when the motion of the sensor 14a is detected, and the driving voltage control unit 15 ) Is a sum of the voltage level input from the DC converting unit 1 (12), and a DC power corresponding to a duty ratio according to a reference waveform input from a separate oscillation circuit, that is, a driving maximum power (Maximum brightness), and supplies the DC power to the general lighting lamp through the constant current switching control unit 16. [

The sensor control circuit 14b transmits a low level waveform to the driving voltage control unit 15 and the driving voltage control unit 15 controls the DC converting unit 1 A constant current switching controller 16 for outputting a direct current power corresponding to a duty ratio according to a reference waveform input from a separate oscillation circuit in addition to a voltage level inputted from the constant current switching circuit 12, And provides it to general lighting.

At this time, if an emergency occurs due to a power failure or the like, the normal commercial AC power input supplied to the commercial power supply line PL1 is interrupted, and the emergency AC power supplied through the emergency power supply line PL2 is converted into DC (13) to the driving voltage control unit (15).

At this time, the sensor power supply circuit 14c of the sensor unit 14 is connected to the DC converting unit 1 (12) to receive power, but since the supply of the sensor power supply circuit 14c is blocked, the sensor control circuit 14b does not operate, 0 to the driving voltage control unit 15 and the driving voltage control unit 15 adds the voltage level input from the DC converting unit 12 to the driving voltage control unit 15, A DC power source having a duty ratio corresponding to the duty ratio, that is, a general lighting lamp, outputs a DC power of a driving maximum power (lighting of the highest brightness) in a range capable of stable driving, and supplies the DC power to the general lighting lamp through the constant current switching controller 16 .

On the other hand, when there is a change in ambient illuminance (difference in brightness), for example, when the sensor 14a detects that the ambient illuminance is lower than a preset value, the sensor control circuit 14b generates a high- To the driving voltage control unit 15. The driving voltage control unit 15 adds the voltage level input from the DC converting unit 1 12 to the driving voltage control unit 15, A DC power source, that is, a general lighting lamp, outputs a DC power of a driving maximum power (lighting of the highest brightness) in a range capable of stable driving, and supplies the DC power to the general lighting lamp through the constant current switching controller 16.

At this time, if the ambient illuminance of the sensor 14a is compared with a preset value, the sensor control circuit 14b transmits a 50% level waveform to the driving voltage controller 15, The driving voltage control unit 15 controls the DC power supply corresponding to the duty ratio according to the reference waveform inputted from the separate oscillation circuit, that is, the general lighting lamp to 50% of the maximum brightness, in addition to the voltage level input from the DC conversion unit 1 And outputs a DC power corresponding to 50% of the maximum power to the ordinary lighting lamp through the constant current switching control unit 16 so as to light up at the corresponding brightness.

Of course, the lights that are turned on and off in the event of an emergency are turned off when the ambient light is not detected.

In this case, the normal illumination lamp is turned off or switched to the power saving mode (20% brightness saving or the like) in accordance with the movement and / or the illuminance of the surroundings at normal times, and only 100% It is possible to prevent unnecessary consumption of electric power because the illumination lamp is constantly turned on.

According to another embodiment of the drive voltage control unit 15, the duty ratio may be determined according to the difference between the level of the waveform output from the sensor unit 14 and the power level output from the DC- And in the event of an emergency, the level of the waveform output from the sensor unit 14 and the difference value of the power supply level output from the DC converting unit 2 (13) in a state where the commercial power supply line PL1 is shut off And a PWM control circuit for outputting a DC power corresponding to the duty ratio according to the duty ratio.

The driving voltage control unit 15 may be configured to control the driving voltage control unit 15 in accordance with the level of the waveform output from the sensor unit 14 and the power level output from the DC- And outputs the DC power to the DC power supply unit 2 (13) in a state where the level of the waveform output from the sensor unit (14) and the commercial power supply line (PL1) And a comparison control circuit for outputting a DC power of a predetermined level according to the value of the comparison control circuit.

Other embodiments of the driving voltage control unit 15 are not so different from those of the driving control unit 15 described above, and therefore, a detailed description thereof will be omitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

In addition, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims.

Accordingly, all such appropriate modifications and changes, and equivalents thereof, should be regarded as within the scope of the present invention.

10: Emergency light control circuit 11: Filter section
12: DC converter 1 13: DC converter 2
14: sensor part 14a: sensor
14b: sensor control circuit 14c: sensor power supply circuit
15: driving voltage control unit 16: constant current switching control unit

Claims (3)

delete A filter unit 11 for intercepting, absorbing or stabilizing the electromagnetic wave of the AC power supplied through the commercial power supply line PL1;
A DC converting unit 1 (12) for reducing the AC power applied from the filter unit (11), filtering the pulsating current, and converting the pulsating voltage to a constant voltage;
A DC converting unit 2 (13) for reducing the AC power supplied through the emergency power supply line (PL2), filtering the pulsating current and converting it into a constant voltage;
A sensor unit 14 for detecting a change in ambient motion and / or illumination and outputting a waveform of a preset level for the detection signal;
The DC power is outputted in accordance with the difference between the waveform output from the sensor unit 14 and the power outputted from the DC converter 1 (12), and in an emergency, the waveform output from the sensor unit A driving voltage control unit 15 for outputting a DC power according to a difference value of power supplied from the DC converting unit 2 (13) in a state where the commercial power supply line (PL1) is shut off;
And a constant current switching control unit (16) for outputting the power outputted from the driving voltage control unit (15) while maintaining a constant level of DC voltage,
The sensor unit (14)
A sensor 14a provided around the space in which the general illumination lamp and the emergency light are installed and detecting the motion generation and illumination;
A sensor control circuit (14b) for detecting a detection signal of the sensor (14a) and outputting a waveform of a predetermined level in accordance with the detection signal;
A sensor power supply circuit 14c for transmitting and operating the power to the sensor control circuit 14b only when the direct current converter 1 (12) operates;
And an emergency light control circuit for controlling the emergency light control circuit.
3. The method of claim 2,
The driving voltage control unit (15)
(DC) corresponding to the duty ratio according to the average value of the sum or sum of the level of the waveform output from the sensor unit 14 and the power level output from the DC / DC converter 1 (12) And outputs the power and, in an emergency, separate from the average value of the sum or sum of the waveforms output from the sensor unit 14 and the power supply levels output from the DC conversion unit 2 (13) in a state where the commercial power supply line PL1 is shut off And a PWM control circuit for outputting a DC power corresponding to a duty ratio according to a reference waveform value inputted from an oscillation circuit of the oscillation circuit,
And outputs a DC power corresponding to the duty ratio according to the difference between the level of the waveform output from the sensor unit 14 and the power level output from the DC-DC converter 1 (12). In an emergency, the sensor unit 14 And a PWM control circuit (not shown) for outputting a DC power corresponding to the duty ratio according to the difference between the level of the waveform output from the DC power supply line (PL1) and the power supply level output from the DC power conversion unit 2 / RTI >
And outputs a DC power of a preset level according to the difference value between the level of the waveform output from the sensor unit 14 and the power level output from the DC conversion unit 1 (12). In an emergency, the sensor unit 14 And a comparative control circuit (not shown) for outputting a DC power of a predetermined level according to a difference value between the level of the waveform output from the DC power supply line (PL1) and the power supply level output from the DC converting unit (2) , ≪ / RTI >
And an emergency light control circuit for controlling the emergency light control circuit.

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