KR101784857B1 - Driving Device of LED Lamp Compatable with a circle, FPL and Fluorescent Lamp Stabilizer - Google Patents

Abstract

The present invention relates to a device for driving an LED lamp compatible with a circle, flat panel light (FPL), and a fluorescent lamp stabilizer capable of operating a bimetallic switch by including the bimetallic switch in a load sensing unit when heat is generated above a certain temperature; recognizing a light load by decreasing an impedance value of the load sensing unit; and reducing a risk of fire due to deterioration. The device for driving the LED lamp compatible with the circle, the FPL, and the fluorescent lamp stabilizer comprises: first to fourth connection terminals which are connected to the fluorescent lamp stabilizer; first and second fuses which are provided in output ends of the first and second connection terminals; the load sensing unit which senses a load of AC power inputted through the first and second connection terminals and the third and fourth connection terminals; a rectifying unit which converts the AC power applied through the load sensing unit to DC power; and an LED unit which receives the DC power outputted through the rectifying unit, and is driven.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a driving apparatus for a circle, an FPL, and a fluorescent lamp,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving apparatus for an LED lamp, and more particularly, to a driving apparatus for a circle, an FPL (Flat Panel Light), and a fluorescent lamp ballast compatible type LED lamp.

Generally, fluorescent lamps are widely used because of their long lifetime and low power consumption compared to incandescent lamps. However, fluorescent lamps have a serious problem causing environmental pollution problems due to mercury or lead flowing out from the fluorescent lamp tube when disposing after use.

Such a fluorescent lamp is a kind of mercury discharge tube having a negative resistance characteristic. When a power source is supplied only, a fluorescent lamp is provided as a means for inducing lighting without lighting and supplying power stably after lighting.

The ballast applies the discharge start high voltage necessary for lighting the fluorescent lamp at the beginning of fluorescent lamp operation, and supplies stable voltage and current after lighting.

Such a fluorescent lamp is formed by using a vacuum glass tube. Since the vacuum glass tube must be sufficiently sealed at the time of manufacturing, there is a problem that it is difficult to manufacture, and sometimes the lamp is not turned on suddenly.

In addition, there is a serious problem in fluorescent lamps that causes environmental pollution problems due to environmental pollutants such as mercury flowing out from a fluorescent lamp tube when disposing of the fluorescent lamps after use.

In order to solve the above problems, there have been recently proposed technologies for replacing a fluorescent lamp with an LED lamp. In addition to being able to solve environmental pollution problems, an LED lamp can reduce energy consumption by about 30% There is a growing need for this.

Such an LED lamp is operated by a DC power source and emits light in a manner different from that of a fluorescent lamp, so that it can not be used as it is in an ordinary electronic ballast. This is because the ballast basically converts the commercial 60Hz AC power source into the several tens of kHz AC power source and supplies it to the lamp. In addition, since the magnetic-type ballast which is widely used does not have a separate circuit for controlling the output, the LED lamp can not be directly applied because the output voltage varies from 100V to 1000V according to the load on the secondary side. Therefore, in order for the LED lamp to be compatible with the ballast for an electronic FL lamp, a separate conversion circuit must be formed in the LED and the like.

On the other hand, the magnetic ballast maintains the plasma formation for the fluorescence in the FL and the like because the coils are connected in series and have the characteristics of the current source, which also generates alternating current.

The characteristic difference between the electronic ballast and the magnetic ballast is that the former is a high-frequency undervoltage, while the latter is a low-frequency high-voltage in order to provide a plasma discharge condition for fluorescence.

If an LED lamp is applied to a conventional magnetic or electronic ballast, the lamp may not operate or the LED may be burned due to overcurrent. In order to solve this problem, a rectifier circuit in the LED lamp can be used to apply the alternating current output from the magnetic or electronic ballast to the LED lamp by converting the AC into direct current. However, since the circuit characteristics of the self- There is a problem in that sufficient illumination can not be applied to the LED lamp to obtain necessary illumination, or overload may be caused to significantly reduce the lifetime of the LED lamp.

(Patent Document 1) Domestic Application No. 10-2009-0096656: LED illumination device

(Patent Document 2) Domestic Application No. 10-2011-0042592: LED lamp

(Patent Document 3) Domestic Application No. 10-2013-0089967: Fluorescent lamp compatible LED lamp control circuit

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above-mentioned problems, and it is an object of the present invention to provide a bimetallic switch in a load sensing unit, in which a bimetal switch is operated when heat is generated above a predetermined temperature, Which can reduce the risk of fire caused by a fluorescent lamp, a fluorescent lamp, and a fluorescent lamp.

In addition, in order to stably obtain the power supply signal output from the ballast, the present invention is applicable to a circulator, a FPL, a fluorescent lamp ballast, and the like, which supply stable power to the LED lamp by preventing the abnormal voltage from being applied to the rectifying part by no- Type LED lamp.

According to another aspect of the present invention, there is provided an apparatus for driving a circlip, a FPL, and a fluorescent lamp ballast compatible LED lamp, including first to fourth connection terminals connected to a ballast, A load sensing unit for sensing a load of an AC power source input through the first and second connection terminals and the third and fourth connection terminals; A rectifying unit for converting the AC power to a DC power and outputting the DC power, and an LED unit for receiving the DC power outputted through the rectifying unit.

In addition, according to another embodiment of the present invention, an apparatus for driving a circle, FPL, and a fluorescent lamp ballast compatible LED lamp includes first to fourth connection terminals connected to a ballast, A first inductor connected in series between the first connection terminal and the second connection terminal, the first inductor including the first bimetallic switch, the first ceramic capacitor, the second ceramic capacitor, And a second ceramic capacitor connected in parallel between an output terminal of the first inductor and an output terminal of the first ceramic capacitor, wherein the load sensing unit comprises a first inductor and an inductor and detects a load of an AC power source input through the first and second connection terminals, A rectifier for converting the AC power applied through the load sensing unit to a DC power and outputting the converted DC power; To be connected to an output DC / DC controller unit, the DC / DC controller unit for outputting characterized by consisting, including LED driving unit for receiving the DC power is outputted through parts of the DC / DC controller.

The driving apparatus of the circle, FPL, and fluorescent lamp ballast compatible LED lamp according to the embodiment of the present invention has the following effects.

First, by adding an inductor to the load sensing unit, load sensing can be detected more accurately.

Second, by configuring the bimetal switch in the load sensing unit, the bimetallic switch is operated when heat is generated above a predetermined temperature, thereby lowering the impedance value of the load sensing unit to recognize under the light load, thereby reducing the risk of fire due to deterioration.

Thirdly, in order to stably obtain the power signal output from the ballast, the abnormal voltage is not applied to the rectifying part by no load and disconnection through the load sensing part, so that stable power can be supplied to the LED lamp.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram schematically showing a driving apparatus for a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to a first embodiment of the present invention;
FIG. 2 is a circuit diagram schematically showing a driving apparatus of a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to the first embodiment of the present invention.
3 is a view schematically showing a frequency state of a power source applied by the DC / DC controller unit through a smoothing unit;
4 is a circuit diagram schematically showing a driving apparatus of a circle, FPL, and a fluorescent lamp ballast compatible LED lamp according to a second embodiment of the present invention.
5 is a circuit diagram schematically showing a driving apparatus for a circle, FPL, and fluorescent lamp ballast compatible LED lamp according to a third embodiment of the present invention.
6 is a circuit diagram schematically showing a driving apparatus of a circle, FPL, and a fluorescent lamp ballast compatible LED lamp according to a fourth embodiment of the present invention.
FIG. 7 is a circuit diagram schematically showing a driving apparatus for a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to a fifth embodiment of the present invention.
8 is a circuit diagram schematically showing a driving apparatus for a circle, FPL, and a fluorescent lamp ballast compatible LED lamp according to a sixth embodiment of the present invention
FIG. 9 is a circuit diagram schematically showing a driving apparatus for a circle, FPL, and a fluorescent lamp ballast compatible LED lamp according to a seventh embodiment of the present invention
10 is a circuit diagram schematically showing a driving apparatus for a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to an eighth embodiment of the present invention.
11 and 12 are circuit diagrams schematically showing a driving apparatus for a circle, FPL, and a fluorescent lamp ballast compatible LED lamp according to ninth and tenth embodiments of the present invention
13 is a circuit diagram schematically showing a driving apparatus for a circle, FPL, and fluorescent lamp ballast compatible LED lamp according to an eleventh embodiment of the present invention
14 is a circuit diagram schematically showing a driving apparatus for a circle, FPL, and a fluorescent lamp ballast compatible LED lamp according to a twelfth embodiment of the present invention

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description and the accompanying drawings, detailed description of well-known functions or constructions that may obscure the subject matter of the present invention will be omitted. It should be noted that the same constituent elements are denoted by the same reference numerals as possible throughout the drawings.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor is not limited to the meaning of the terms in order to describe his invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

FIG. 1 is a schematic view of a driving apparatus for a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to a first embodiment of the present invention. FIG. 2 is a cross- Fig. 2 is a circuit diagram schematically showing a driving apparatus of a ballast-compatible LED lamp. Fig.

1 and 2, the apparatus for driving a circle, FPL, and a fluorescent lamp ballast compatible LED lamp according to the first embodiment of the present invention includes a connection terminal 110, a fuse 120, a bimetal switch 130, A rectifier 150, a smoothing unit 160, a DC / DC controller 170, a switching noise eliminator 180, and an LED unit 190.

Here, the compatible LED lamp is an LED lamp for replacing a conventional fluorescent lamp. The LED lamp is similar in appearance to a conventional fluorescent lamp, and the connection terminal 110 includes first to fourth connection terminals 111, 112, 113, and 114 And an LED lamp capable of operating in connection with a ballast mounted in a luminaire to drive an existing fluorescent lamp.

The first to fourth connection terminals 111, 112, 113, and 114 are electrode terminals that are inserted into socket terminals of a fluorescent lamp and to which power is applied. Among the first to fourth connection terminals 111, 112, 113, It can be connected to the ballast through any combination of two connection terminals.

The fuse 120 is composed of first and second fuses 121 and 122 connected to the output terminals of the first connection terminal 111 and the second connection terminal 112, The first and second connection terminals 121 and 122 are connected to the output terminals of the third connection terminal 113 and the fourth connection terminal 114 to protect the circuit from an instantaneous overvoltage or a surge current of an alternating current from an external power source. That is, the fuse 120 is short-circuited to protect the circuit when any one of the permissible voltage or the allowable current is exceeded.

In order to stably obtain the power supply signal output from the ballast, the load sensing unit 140 may be configured to supply a stable power for driving the LED unit 190 by preventing the abnormal voltage from being applied to the rectifying unit 150 due to no- Can be obtained.

The load sensing unit 140 includes a first inductor 141, a first ceramic capacitor 142, and a second inductor 143 connected in series between the output terminals of the first and second fuses 121 and 122 And a second ceramic capacitor 144 and a bimetal switch 130 are connected in parallel between an input terminal and an output terminal of the first ceramic capacitor 142.

One end of the second ceramic capacitor 144 is connected to the output terminal of the first inductor 141 and the other end of the second ceramic capacitor 144 is connected to the bimetal switch 130. The other end of the bimetal switch 130 is connected to the first ceramic capacitor 142, respectively. At this time, the second ceramic capacitor 144 and the bimetal switch 130 are connected in series.

A third inductor 145, a third ceramic capacitor 146, and a fourth inductor 147 are connected in series between the output terminal of the fourth input terminal 114 and the rectifying unit 150. A ceramic capacitor and a bimetal switch may be additionally provided between the input terminal and the output terminal of the third ceramic capacitor 146.

At this time, the second ceramic capacitor 144 is formed of a ceramic capacitor having a capacitance larger than that of the first ceramic capacitor 142 and the third ceramic capacitor 145, so that the load can be detected more smoothly.

In general, the lighting of circle, FPL, and fluorescent lamps can not be directly connected to the ballast because of its characteristics. The reason for this is that in order to light up the existing lamps, the LED lamps are turned on by converting them into alternating current of 60V AC to 100V AC or 47Hz to several tens of KHz.

When the LED lamp is turned on without the load sensing unit 140, the LED unit 190 may fail to turn on, the LED may be burned due to the overvoltage supply, the LED lamp may be burned due to the overcurrent, or fire may occur.

In order to allow the LED unit 190 to be compatible with various ballasts, a separate conversion circuit, that is, a load sensing unit 140 must be provided. However, normal operation is possible only if the setting value of the circuit is changed according to the power consumption and lamp type applied to the circle, the FPL fluorescent lamp, and the like.

The load supplied through the ballast can be recognized as no load (0W), light load (0-2W), heavy load (2-5W), high load (consumes 5W or more) depending on the impedance of the load sensing part have. Accordingly, if the load sensing unit 140 recognizes that the load sensing unit 140 is abnormal during the driving of the LED unit 190, the load sensing unit 140 may be damaged due to deterioration, thereby causing a risk of fire.

Further, if all loads are recognized as heavy load in the load sensing unit 140 due to disconnection of the LED lamp and burnout of the DC / DC controller unit 170, the rectifying unit 150 may be damaged due to deterioration, do.

In order to reduce the risk of fire caused by the deterioration, the present invention mounts a separate bimetal switch 130 in the load sensing unit 140. When the load sensing unit 140 recognizes that the load sensing unit 140 is abnormal, The bimetal switch 130 is activated and the impedance value of the load sensing unit 140 is lowered to recognize the light load so that the risk of fire due to deterioration is removed in advance.

The bimetallic switch 130 is a return type thermal fuse that performs an off operation when an abnormal state occurs but returns to normal operation when the external or internal abnormal state is eliminated. Therefore, it is possible to prevent the overheat by continuing to flow the excess current continuously to the additional sensing unit 140 and the smoothing unit 150.

Although the bimetallic switch 130 is described as a return type, the present invention is not limited thereto.

The rectifier 150 rectifies the power supply voltage output from the ballast for fluorescent lamp. The rectifying unit 150 may be implemented by a conventional diode or an application device thereof (for example, a bridge rectifying circuit or the like), but any rectifying unit 150 ).

The rectifying unit 150 may be connected to the first to fourth connection terminals 111, 112, 113 and 114. The rectifying unit 150 performs full wave rectification of the AC power input through any one of the first to fourth connection terminals 111, 112, 113 and 114 and outputs the rectified AC power to the smoothing unit 160.

When the AC power is input through the first connection terminal 111 and the second connection terminal 112 or inputted through the third connection terminal 113 and the fourth connection terminal 114, Thereby outputting the voltage. It is preferable to use a high frequency diode for processing an alternating current power having a frequency several hundred times that of a commercial power source output from a ballast for a fluorescent lamp.

On the other hand, it can be divided into the constant voltage (CV) type, the constant current (CC) type, and the constant voltage (CV / CC) type according to the circuit method of the ballast.

The rectifying unit 150 may convert AC power input through the first to fourth connection terminals 111, 112, 113, and 114 to DC power. The rectifying unit 150 may be implemented as a diode, and the rectifying unit 150 may convert the AC power to full-wave rectified current. The rectifying unit 150 may be implemented in various forms according to the combination arrangement of the diodes.

The rectifier 150 receives the AC power from the first to fourth input terminals 111, 112, 113, and 114 from the ballast while the LED unit 190 operates with DC, and thus converts AC into DC It is not possible to distinguish which terminal is the main power source, so that the full-wave rectification is performed on the first to fourth input terminals 111, 112, 113, 114.

The smoothing unit 160 is formed of a capacitor and is disposed between the rectifying unit 150 and the DC / DC controller unit 170 to stabilize the output of the commercial power and stabilizer output through the rectifying unit 150, And outputs it to the controller unit 170.

The smoothing unit 160 may be connected to an output terminal of the rectifying unit 150 to remove the ripple component from the voltage rectified by the rectifying unit 150 to smooth the rectified voltage. Although not shown in the drawing, a surge that may be included in the rectified current by connecting a varistor in parallel between both ends of the rectifying unit 150 or both ends of the smoothing unit 160 absorbs or protects The circuit may be operated.

The DC / DC controller 170 converts the DC power converted through the rectifier 150 into a required voltage and outputs the DC power.

In order to prevent a switching failure or an abnormal operation in the DC / DC controller unit 170 due to the DC / DC switching noise when the power is supplied from the smoothing unit 160 to the DC / DC controller unit 170, (180) on the input side of the DC / DC controller unit (170).

The LED unit 190 is connected to an output terminal of the DC / DC controller unit 170 and is driven by receiving DC power output through the DC / DC controller unit 170.

The LED unit 190 is formed in an array in which a plurality of LED devices are connected in series and / or in parallel. Depending on the number and arrangement of LED devices included in the LED unit 190, And power consumption can be determined.

The driving apparatus of the circle, FPL, and fluorescent lamp ballast compatible LED lamp according to the present invention can be compatible with various ballasts such as a glow starter type, a rapid start type, an electronic type, and a magnetic circuit type. A stable power source for driving the LED lamp can be obtained by preventing the abnormal voltage from being applied to the rectifying unit 150 by no load and disconnection through the load sensing unit 150 in order to stably obtain the power signal output from the ballast.

The DC / DC controller unit 170 includes a switching control unit 171, a diode 172, a power transistor 173, a resistor 174, and a fifth inductor 175.

The switching control unit 171 receives the voltage input through the rectifying unit 150 and drives the power transistor 173 and is configured between the rectifying unit 150 and the grounding terminal.

The diode 172 is provided between the rectifying part 150 and the output terminal of the switching control part 171 to remove an AC component from the secondary side. The diode 172 is connected to the LED part 190 The AC component included in the DC signal is removed.

A gate terminal of the power transistor 173 is connected to the switching control unit 171 and one end of the power transistor 173 is connected to the resistor 174 and the other end of the power transistor 173 is connected to one end of the power transistor 173, And a fifth inductor 175 is provided between the first and second inductors 190 and 190.

On the other hand, AC power of commercial power 100V, 22V is driven normally, and it is possible to drive without using ballast.

3 is a diagram schematically showing a frequency state of a power source applied by the DC / DC controller unit through a smoothing unit.

As shown in FIG. 3, when external power including ripple is applied to the power supply, the switching noise can be removed through the switching noise eliminator 180 to supply a stable power.

That is, when the (+) terminal of the smoothing unit 160 and the DC / DC controller unit 170, the LED unit 190, and the switching noise eliminator 180 switch to the same line, ripple is induced in the power source. Due to this ripple, the DC / DC controller unit 170 generates an abnormal operation, causing flicker on the LED unit 190 or IC burn-out. In order to prevent this, only the switching noise eliminator 180 line is separately formed, and a stable power is supplied by preventing ripple induction by a serial resistance (high capacity).

FIG. 4 is a circuit diagram schematically showing a driving apparatus for a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to a second embodiment of the present invention.

As shown in FIG. 4, the driving apparatus of the circle, FPL, and fluorescent lamp ballast compatible LED lamp according to the second embodiment of the present invention is different from the first embodiment in that the second ceramic capacitor 144 and the bimetal switch 130 Except that the second inductor 143 and the fourth inductor 147 have a capacity larger than that of the first inductor 141 and the third inductor 145.

The second inductor 143 and the fourth inductor 147 may be additionally configured so as to have a larger capacity than the first inductor 141 and the third inductor 145 to sense the load of the load sensing unit 140 Can be detected more accurately.

Therefore, in order to stably obtain the power supply signal output from the ballast, the abnormal voltage is not applied to the rectifying part by no load or disconnection through the load sensing part 140, so that stable power can be supplied to the LED lamp.

In general, the lighting of the circle, the FPL, and the fluorescent lamp can not be used by directly connecting the LED unit 190 to the ballast because of its characteristics. The reason for this is that in order to light up the existing lamps, the lamps are turned on by changing from 60 VAC to 1000 VAC, 47 HZ to several KHz.

If the LED unit 190 is turned on without the load sensing unit 140, there is a risk of failing to turn on the LED, burning the LED due to the overvoltage supply, burning the LED lamp due to overcurrent supply, or fire. In order to allow the LED and the like to be compatible with various ballasts, a separate conversion circuit, that is, a load sensing unit 140, must be provided.

However, normal operation can be performed only if the setting value of the load sensing unit 140 is changed according to the power consumption and lamp type applied to the circle, the FPL, and the fluorescent lamp.

5 is a circuit diagram schematically showing a driving apparatus for a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to a third embodiment of the present invention.

As shown in FIG. 5, the apparatus for driving a circle, FPL, and a fluorescent lamp ballast compatible LED lamp according to the third embodiment of the present invention includes first and second connection terminals 111 and 112 as compared with the second embodiment, And the fifth ceramic capacitor 148 is formed between the third, fourth, and connection terminals 113, 114, respectively.

FIG. 6 is a circuit diagram schematically showing a driving apparatus for a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to a fourth embodiment of the present invention.

As shown in FIG. 6, the driving apparatus of the circle, the FPL, and the fluorescent lamp ballast compatible LED lamp according to the fourth embodiment of the present invention is different from the first embodiment in that the first and second connection terminals 111 and 112, And the fifth ceramic capacitor 148 is formed between the third, fourth, and connection terminals 113, 114, respectively.

FIG. 7 is a circuit diagram schematically showing a driving apparatus for a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to a fifth embodiment of the present invention.

As shown in FIG. 7, the driving apparatus for a circle, FPL, and fluorescent lamp ballast compatible LED lamp according to the fifth embodiment of the present invention includes a bimetallic switch 130 ), Except for the above.

The bimetallic switch 130 may be formed between the output terminal of the smoothing unit 160 and the input terminal of the LED unit 190 so that the abnormal ballast or the CC mode ballast is applied to the DC / DC controller unit 170 and the LED unit 190 When the overcurrent is supplied, the risk of fire can be prevented in advance. That is, the bimetallic switch 130 is used to cut off the switching power supply of the DC / DC controller unit 170, thereby preventing overcurrent and fire.

The bimetallic switch 130 measures the temperature of the power transistor 173 serving as a switching element of the rectifying unit 150 and the DC / DC controller unit 170 so that an overcurrent flows through the LED unit 190, .

Meanwhile, the bimetal switch 130 can be used both as a return type and a non-return type, and can be used as a PTC replacement.

FIG. 8 is a circuit diagram schematically showing a driving apparatus for a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to a sixth embodiment of the present invention.

As shown in FIG. 8, the driving apparatus for the circle, FPL, and fluorescent lamp ballast compatible LED lamp according to the sixth embodiment of the present invention includes a smoothing unit 160 and a DC / DC controller unit The first inductor 141, the first ceramic capacitor 142, and the second inductor 143 are connected in series to each other so that the LED unit 190 is turned on using the output of the ballast directly without configuring the first inductor 141, the first ceramic capacitor 142, The load sensing unit 140 is connected between the first and second input terminals 111 and 112 and between the third and fourth input terminals 113 and 114.

FIG. 9 is a circuit diagram schematically showing a driving apparatus for a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to a seventh embodiment of the present invention.

As shown in FIG. 9, the apparatus for driving a circle, FPL, and a fluorescent lamp ballast compatible LED lamp according to the seventh embodiment of the present invention is different from the second embodiment in that the smoothing unit 160 and the DC / The first ceramic capacitor 142 and the second inductor 143 are connected to the first fuse 121 by using the output of the ballast directly without lighting the first fuse 121. The first inductor 141, And a third inductor 145, a second ceramic capacitor 146 and a fourth inductor 147 are connected in series to the second fuse 122 to constitute a load sensing unit 140 .

Meanwhile, the driving apparatus of the circles, the FPL, and the fluorescent lamp-compatible LED lamps according to the sixth and seventh embodiments of the present invention should be used with a ballast and can not be used in series connection of 100 or 220 VAC.

In addition, the load sensing unit 140 can be configured normally according to the power consumption and lamp type applied to the circle, the FPL fluorescent lamp, and the serial / parallel connection of the LEDs.

FIG. 10 is a circuit diagram schematically showing an apparatus for driving a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to an eighth embodiment of the present invention.

As shown in FIG. 10, the driving apparatus of the circle, FPL, and fluorescent lamp ballast compatible LED lamp according to the eighth embodiment of the present invention is different from the sixth embodiment in that the output terminal of the load sensing unit 140 and the rectifying unit 150 Except that the bimetal switch 130 is formed between the input terminals of the bimetal switch 130. [

In the present invention, the bimetallic switch 130 is connected to the first and second input terminals 111 and 111, respectively, at the output terminal of the load sensing unit 140, 112, and the third and fourth input terminals 113, 114, respectively, so that the overcurrent supplied from the ballast can be effectively blocked, thereby preventing a fire caused by the overcurrent. That is, the bimetal switch 130 is formed on the first and second input terminals 111 and 112 and the third and fourth input terminals 113 and 114, respectively.

The temperature measuring part of the bimetal switch 130 is measured at an input terminal of the rectifying part 150, and when a temperature higher than a specific temperature is generated, the corresponding bimetal switch is turned off to cut off the power supply.

FIGS. 11 and 12 are circuit diagrams schematically showing driving devices of a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to ninth and tenth embodiments of the present invention.

11, the driving apparatus for a circle, FPL, and a fluorescent lamp ballast compatible LED lamp according to the ninth embodiment of the present invention is different from the eighth embodiment in that the output terminal of the load sensing unit 140 and the rectifying unit 150 Except that the bimetallic switch 130 configured between the input terminals of the first and second input terminals 111 and 112 is constituted.

12, the driving apparatus for a circle, FPL, and fluorescent lamp ballast compatible LED lamp according to the tenth embodiment of the present invention is different from the eighth embodiment in that the output terminal of the load sensing unit 140 and the rectifying unit 150 Except that a bimetal switch 130 is provided between the input terminals of the first and second input terminals 113 and 114. [

FIG. 13 is a circuit diagram schematically showing an apparatus for driving a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to an eleventh embodiment of the present invention.

As shown in FIG. 13, the apparatus for driving a circle, FPL, and a fluorescent lamp ballast compatible LED lamp according to the eleventh embodiment of the present invention is different from the ninth embodiment in that the driving unit for the LED lamp is provided between the rectifying unit 150 and the LED unit 190 Except that the smoothing unit 160 and the DC / DC controller unit 170 are constituted.

FIG. 14 is a circuit diagram schematically showing a driving apparatus for a circle, an FPL, and a fluorescent lamp ballast compatible LED lamp according to a twelfth embodiment of the present invention.

As shown in FIG. 14, the driving apparatus for a circle, FPL, and a fluorescent lamp ballast compatible LED lamp according to a twelfth embodiment of the present invention is different from the eleventh embodiment in that the bimetal switch 130 is connected to the first and second inputs Except that the third and fourth input terminals 113 and 114 as well as the terminals 111 and 112 are provided.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. . Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

110: connection terminal 120: fuse
130: Bimetal switch 140: Load sensing part
150: rectification part 160:
170: DC / DC controller unit 180: Switching noise eliminator
190: LED section

Claims (31)

delete delete delete delete delete delete delete delete First to fourth connection terminals connected to the ballast,
A first bimetal switch connected between the first connection terminal and the second connection terminal to turn on or off according to a specific temperature,
A first ceramic capacitor and a second inductor connected in series between the first connection terminal and the second connection terminal, including the first bimetallic switch, through the first and second connection terminals, A load sensing unit for sensing a load of an AC power source,
A second ceramic capacitor connected in parallel between an output terminal of the first inductor and an output terminal of the first ceramic capacitor,
A rectifier for converting the AC power applied through the load sensing unit to DC power and outputting the DC power,
A DC / DC controller unit for converting the DC power converted through the rectifying unit into a required voltage and outputting the DC power;
And an LED unit connected to an output terminal of the DC / DC controller unit and driven by DC power outputted through the DC / DC controller unit. 10. The apparatus of claim 9, wherein the first bimetal switch is connected in series with the second ceramic capacitor. delete The load sensing unit according to claim 9, wherein the load sensing unit includes a third inductor, a third ceramic capacitor, and a fourth inductor connected in series between the third connection terminal and the fourth connection terminal, And the load of the AC power input through the FPL lamp is detected. 13. The LED lamp of claim 12, further comprising a fourth ceramic capacitor connected in parallel between an output terminal of the third inductor and an output terminal of the third ceramic capacitor. Device. 14. The driving apparatus of a circle, FPL, and fluorescent lamp ballast compatible LED lamp according to claim 13, wherein the second ceramic capacitor is a capacitor having a larger load capacity than the first and third ceramic capacitors. delete The lighting apparatus according to claim 9, further comprising a switching noise removing unit connected between the rectifying unit and the DC / DC controller to remove noise included in the DC power source. . The apparatus of claim 16, further comprising a smoothing unit disposed between the rectifying unit and the DC / DC controller unit. 18. The lighting apparatus according to claim 17, wherein the (+) terminal of the smoothing unit, the DC / DC controller unit, and the LED unit are formed in a line separate from the switching noise removing unit. Device. The LED lighting device according to claim 9, further comprising a fifth ceramic capacitor connected in parallel between the first and second connection terminals and between the third and fourth connection terminals, the FPL, the fluorescent lamp ballast compatible LED Driving device of the lamp. 13. The driving apparatus of claim 12, wherein the second inductor and the fourth inductor have a larger capacitance than the first inductor and the third inductor. delete delete delete delete delete delete delete delete delete delete delete

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