KR101997123B1 - Afterglow eliminative type ilumination device - Google Patents

Abstract

In the present invention, the residual light of the light emitting module, which may be caused by the parasitic current existing in the light emitting device illuminating device, is removed even when the switch SW is OFF (OFF) with respect to the lamp load using a commercial power source such as an AC LED lamp A lighting device for removing afterglow and a method thereof are disclosed.
The disclosed afterglow-removing illumination device includes: an AC power source for receiving an AC power; A DC converting unit converting the input AC power into a DC power; A light emitting module unit for emitting an electric lamp by the direct current (DC) power source; A switch SW for turning on or off the light emission of the electric lamp; An optocoupler operated by the current of the DC power supply when the switch is turned off according to an OFF state of the switch SW; An alternating-current power switching unit for switching the supply of the alternating-current power through the ON or OFF operation by the power outputted from the photocoupler; And an alternating current (AC) power output unit for outputting the alternating current power in a connected or insulated state in accordance with the switching intermittence.

Description

TECHNICAL FIELD [0001] The present invention relates to an AFTERGLOW ELIMINATIVE TYPE ILLUMINATION DEVICE

The present invention relates to an illumination device for removing afterglow light and a method thereof, and more particularly to an illumination device for removing afterglow light and a method thereof, more particularly to a lamp load using a commercial power source such as an AC LED lamp, The present invention relates to a lighting device for removing afterglow and a method for removing residual light of a light emitting module which can be generated by a parasitic current.

Generally, all loads using a commercial power supply, such as an AC LED (Light Emitting Diode) luminaire, leak power when the switch is turned off for AC power supply.

That is, when the user turns on the switch SW, the closed circuit is formed between the power supply terminal and the lower terminal, and the commercial (AC) power supply from the power supply terminal is mostly applied to the lower terminal through the switching device.

However, if the user turns off the switch SW while the power is consumed at the lower stage, a minute current flows through the lower stage terminal connected to the lower stage terminal. That is, when the switch SW is turned off, the switching element is not completely isolated, but current flows through the gate of the corresponding element to the negative terminal.

Therefore, even when the switch SW is turned off in the AC LED lamp, there is a problem that afterglow is generated due to the generation of a minute leakage current, and standby power is lost due to power consumption at the lower stage.

In addition, when the switch SW is turned off, there is a problem that a user may be inadvertently caught in a load and a part of the body may be electrically charged in a state in which it is unknown that a minute leakage current is supplied to the load terminal.

Korean Patent Publication No. 10-2013-0092090 (published on August 20, 2013)

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-described problems and to provide a lighting apparatus and a lighting apparatus which can prevent a lamp load using a commercial power source such as an AC LED lamp from being generated by a parasitic current Which is capable of removing residual light of the light emitting module, and a method for removing the afterglow light.

According to an aspect of the present invention, there is provided an illumination device for removing afterglow light, comprising: an AC power source for receiving an AC power; A DC converting unit converting the input AC power into a DC power; A light emitting module unit for emitting an electric lamp by the direct current (DC) power source; A switch SW for turning on or off the light emission of the electric lamp; An optocoupler operated by the current of the DC power supply when the switch is turned off according to an OFF state of the switch SW; An alternating-current power switching unit for switching the supply of the alternating-current power through the ON or OFF operation by the power outputted from the photocoupler; And an alternating current (AC) power output unit for outputting the alternating current power in a connected or insulated state in accordance with the switching intermittence.

The photocoupler unit is turned on when the switch SW is turned off and operated by the current of the DC power source and is turned off when the switch SW is turned on. So that the current of the DC power supply can not be supplied.

The photocoupler part is operated by the current of the direct current power source which remains on the AC power switching part when the switch SW is turned off so that the current of the direct current power source It is not supplied to the AC power output unit connected to the lower end, so that afterglow is not generated.

The photocoupler unit is turned off when the switch SW is turned on so that the AC power supply switching unit is turned on without being supplied with the current of the DC power supply, A current is supplied to the AC power output unit through the AC power switching unit so that a lamp load connected to the AC power output unit consumes power according to the light emission of the lamp.

In addition, when the switch SW is turned off, the AC power switching unit is turned off so that the current of the DC power supply is not supplied to the AC power output unit through the AC power switching unit, The photocoupler unit is turned on to supply and consume the current of the DC power source remaining in the AC power source switching unit so that the power is no longer consumed due to the lighting load connected to the power source output unit being turned off, It is not supplied to the AC power output unit connected to the lower end, so that afterglow is not generated.

A power learning unit for detecting voltage and current values corresponding to the remaining DC power and learning and storing a voltage, a current, and a power value for a predetermined number of times or more each time the switch SW is turned off; And a control unit for controlling the operation of the photocoupler such that the learned power value is consumed by the power learning unit when the switch SW is turned off.

According to an aspect of the present invention, there is provided a method of removing afterglow light from an illumination device, the method comprising: (a) receiving an AC power from an AC power source; (b) converting the input AC power into a direct current (DC) power in a DC converter; (c) a step in which the switch SW turns on or off the light emission of the electric lamp; And (d) when the photocoupler is turned off when the switch SW is turned off, the photocoupler is turned on by the current of the DC power source.

In addition, in the step (d), the photocoupler unit is turned on when the switch SW is turned off and operates by the current of the DC power source remaining in the AC power switching unit, The DC power is not supplied to the AC power output unit connected to the negative terminal, thereby preventing afterglow.

In the step (d), the photocoupler unit may be configured such that the current of the DC power source is supplied to the AC power output unit through the AC power switching unit when the switch is turned on, And the AC power supply switching unit turns on the AC power supply unit according to the switching-on state to supply the AC power, and the AC power supply unit outputs the supplied AC power.

In the step (c), when the switch SW is turned off, the AC power switching unit is turned off so that the current of the DC power supply is supplied to the AC power output unit through the AC power switching unit The photocoupler unit is turned on in the step (d) so that the AC power is not supplied to the AC power switching unit, The DC current is supplied to the AC power output unit connected to the lower end of the DC power supply, so that the afterglow is not generated.

In the step (d), the photocoupler unit is turned off when the switch SW is turned on, so that the AC power supply switching unit is turned on without being supplied with the current of the DC power supply. The current of the DC power source is supplied to the AC power output unit through the AC power switching unit so that the lamp load connected to the AC power output unit consumes power according to the light emission of the lamp.

According to the present invention, when the switch SW is turned off, the photocoupler unit is turned on so that the current of the DC power source remaining in the AC power switching unit is consumed so that the current of the DC power source is connected to the negative terminal The afterglow can be prevented from being generated by not being supplied to the AC power output unit.

1 is a block diagram schematically showing a main configuration of a lighting device for removing afterglow according to an embodiment of the present invention.
FIG. 2 is a view showing an example of implementing a lighting device for removing afterglow according to an embodiment of the present invention with a circuit.
3 is a flowchart illustrating a method of removing afterglow of a lighting apparatus according to an embodiment of the present invention.
4 is a view showing a configuration of a lighting device for removing afterglow according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

If any part is referred to as being "on" another part, it may be directly on the other part or may be accompanied by another part therebetween. In contrast, when a section is referred to as being "directly above" another section, no other section is involved.

The terms first, second and third, etc. are used to describe various portions, components, regions, layers and / or sections, but are not limited thereto. These terms are only used to distinguish any moiety, element, region, layer or section from another moiety, moiety, region, layer or section. Thus, a first portion, component, region, layer or section described below may be referred to as a second portion, component, region, layer or section without departing from the scope of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. Means that a particular feature, region, integer, step, operation, element and / or component is specified and that the presence or absence of other features, regions, integers, steps, operations, elements, and / It does not exclude addition.

Terms indicating relative space such as "below "," above ", and the like may be used to more easily describe the relationship to other portions of a portion shown in the figures. These terms are intended to include other meanings or acts of the apparatus in use, as well as intended meanings in the drawings. For example, when inverting a device in the figures, certain parts that are described as being "below" other parts are described as being "above " other parts. Thus, an exemplary term "below" includes both up and down directions. The device can be rotated by 90 degrees or rotated at different angles, and terms indicating relative space are interpreted accordingly.

Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Commonly used predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 is a block diagram schematically showing a main configuration of a lighting device for removing afterglow according to an embodiment of the present invention.

1, a lighting device 100 for removing afterglow according to the present invention includes an AC power source unit 110, a DC converting unit 120, a light emitting module unit 130, a switch SW 140, A photo coupler section 150, an AC power switching section 160, and an AC power output section 170.

The AC power source unit 110 receives AC power of, for example, 110 V or 220 V from the outside.

The DC converting unit 120 converts the inputted AC power into a DC (direct current) power.

The light emitting module unit 130 refers to a lamp load that emits light by a direct current (DC) power source to consume electric power according to light emission.

The switch 140 inputs a command to turn ON or OFF the light emission of the electric lamp according to the operation of the user.

The photocoupler unit 150 is turned on by the current of the DC power supply when the lamp is turned off due to the OFF of the switch 140. 2, the photocoupler unit 150 may be provided at the first output terminal AC OUT1 and the second output terminal AC OUT2, respectively, and they are connected through resistors R7 and R8, respectively . FIG. 2 is a view showing an example of implementing a lighting device for removing afterglow according to an embodiment of the present invention with a circuit. As shown in FIG. 2, when the photocoupler unit 150 receives the light emitted from the light emitting diode into the phototransistor, the phototransistor receives the phototransistor and the phototransistor is in a conducting state, thereby consuming power.

That is, the photocoupler unit 150 is turned on when the switch 140 is turned off and operated by the current of the DC power source. When the switch 140 is turned on, ) So that the current of the DC power supply can not be supplied.

The photocoupler unit 150 is operated by the current of the DC power source that remains on the AC power switching unit 160 when the switch 140 is turned off, Is not supplied to the alternating-current power output unit 170 connected to the lower end, so that afterglow is not generated.

The photocoupler unit 150 is turned off when the switch 140 is turned on so that the AC power supply switching unit 160 is turned on without being supplied with the DC power supply current The current of the DC power source is supplied to the AC power output unit 170 through the AC power switching unit 160 so that the lamp load of the light emitting module unit 130 connected to the AC power output unit 170 To be consumed.

The AC power switching unit 160 switches on and off the supply of the AC power through the ON or OFF operation of the power source output from the photocoupler unit 150.

The AC power output unit 170 outputs AC power in a connected or insulated state in accordance with switching interruption.

When the switch 140 is turned off, the AC power switching unit 160 is turned off so that the DC power source is supplied to the AC power output unit 170 through the AC power switching unit 160 The photocoupler unit 150 is turned on so that the electric power is no longer consumed due to the light load of the light emitting module unit 130 connected to the AC power output unit 170 being turned off, The residual current is not supplied to the AC power output unit 170 connected to the lower end of the light emitting module unit 130 by receiving and consuming the current of the DC power source remaining in the switching unit 160.

3 is a flowchart illustrating a method of removing afterglow of a lighting apparatus according to an embodiment of the present invention.

Referring to FIG. 3, the lighting apparatus 100 according to the present invention first receives AC power from an AC power source 110 (S310). That is, as shown in FIG. 2, AC power of 110 V AC or 220 V AC is input through the AC power source 110.

Next, the AC power input from the DC power conversion unit 120 through the AC power supply unit 110 is converted into a DC power (S320). That is, the AC power source is alternately switched between a positive (+) power source and a negative (-) power source, and is converted into a stable DC power source composed of a positive (+) power source.

Next, the switch 140 turns on or off the light emission of the electric lamp (S330). That is, when the user turns on the switch 140 in order to turn on the illumination of the light emitting module unit 130, the switch 140 is turned on or the light emitting module unit The switch 140 is turned off according to an operation that the user turns off the switch 140 in order to turn off the illumination of the switch 130.

When the switch 140 is turned off, the photocoupler unit 150 is turned on by the current of the DC power source to extinguish the afterglow (S340)

That is, the photocoupler unit 150 is turned on when the switch 140 is turned off according to the operation of turning off the user in a state in which the light of the light emitting module unit 130 is being emitted, And operates by the current of the DC power source remaining in the AC power switching unit 160 so that the after current is not supplied to the AC power output unit 170 connected to the lower end so that afterglow is not generated .

Here, the photocoupler unit 150 may be configured such that the current of the DC power source is supplied to the alternating-current power output unit 170 (not shown) through the alternating-current power switching unit 160 when the switch 140 is turned on And the AC power supply switching unit 160 is connected to the AC power supply switching unit 160 according to the switching on and supplies the AC power to the AC power output unit 170 to output the AC power.

When the switch 140 is turned off, the AC power switching unit 160 is turned off so that the DC power source is supplied to the AC power output unit 170 through the AC power switching unit 160 The photocoupler unit 150 is turned on and remains in the AC power switching unit 160 so that the power is not consumed any more as the lamp load connected to the AC power output unit 170 is turned off. So that it is not supplied to the alternating current power output unit 170 connected to the lower stage, thereby preventing the afterglow from being generated.

The photocoupler unit 150 is turned off when the switch 140 is turned on so that the AC power supply switching unit 160 is turned on without being supplied with the DC power supply current The current of the DC power source is supplied to the AC power output unit 170 through the AC power switching unit 160 so that the lamp load connected to the AC power output unit 170 can consume power according to the light emission of the lamp.

On the other hand, when the switch 140 is turned OFF, the photocoupler unit 150 is operated to remove the afterglow, and the power value consumed by the photocoupler unit 150 is detected and learned a predetermined number of times.

4, when the switch 140 is turned off, the voltage and current values corresponding to the residual DC power are detected, and the voltage, current, and power value A power learning unit 180 for learning and storing a predetermined number of times or more; And a control unit 190 for controlling the operation of the photocoupler unit 150 such that the learned power value is consumed through the power learning unit 180 when the switch 140 is turned off. 4 is a view showing a configuration of a lighting device for removing afterglow according to another embodiment of the present invention.

Therefore, the photocoupler unit 150 consumes power by the learned power value when the switch 140 is turned OFF based on the learned power value over a predetermined number of times, Can be prevented.

As described above, according to the present invention, even when the switch SW is turned off, a light emitting module which can be generated by a parasitic current existing in the light emitting device illuminating device can be applied to a lamp load using a commercial power source, It is possible to realize a lighting device for removing afterglow and a method thereof.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims and their equivalents. Only. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: illumination device for removing afterglow 110: AC power source
120: DC converter 130: Light emitting module
140: switch (SW) 150: photocoupler part
160: AC power switching unit 170: AC power output unit
180: power learning unit 190:

Claims (10)

An AC power source for receiving an AC power;
A DC converting unit converting the input AC power into a DC power;
A light emitting module unit for emitting an electric lamp by the direct current (DC) power source;
A switch SW for turning on or off the light emission of the electric lamp;
An optocoupler operated by the current of the DC power supply when the switch is turned off according to an OFF state of the switch SW;
An alternating-current power switching unit for switching the supply of the alternating-current power through the ON or OFF operation by the power outputted from the photocoupler; And
An alternating-current power output unit for outputting the alternating-current power in a connected or insulated state in accordance with the switching intermittence; , ≪ / RTI &
The photocoupler part is operated by the current of the direct current power source which remains on the AC power switching part when the switch SW is turned off so that the current of the direct current power is supplied to the negative terminal And the switch SW is turned off when the switch SW is turned on so as not to be supplied with the current of the DC power source, And the current of the DC power source is supplied to the AC power output unit through the AC power switching unit so that the lamp load connected to the AC power output unit can consume power according to the light emission of the lamp Features,
Lighting device for removing afterglow.
delete delete The method according to claim 1,
A power learning unit for detecting voltage and current values according to the remaining DC power and learning and storing the voltage, current, and power values more than a predetermined number of times when the switch SW is off; And
A control unit for controlling the operation of the photocoupler such that a power value learned through the power learning unit is consumed when the switch SW is turned off;
Further comprising: an illumination optical system for illuminating the illumination optical system.
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