KR101601607B1 - Light emitting diode lighting device - Google Patents

Abstract

The present invention relates to an integrated light emitting diode (LED) lighting device for extended control, which comprises: a plurality of first to N^th converters for receiving AC to convert the same into DC; an LED module for receiving the DC from the first to N^th converters to emit light; and a plurality of first to N^th on/off switches (1, 2, 3, ..., N) which are individually connected to the first to N^th converters, and control power application. The first to N^th converters include an LED converter circuit in which output units thereof do not collide even if the output units are combined to each other. According to the present invention, a constant current constant voltage source is directly generated by a primary side auxiliary winding, and is switched into the first to N^th converters which can basically perform constant current driving needed to drive the LED, and can perform electrostatic force driving at the same time so as to control the brightness of an LED module, so a separate dimming circuit is unnecessary, thereby saving costs for installation and also, saving standby power consumption.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a light emitting diode (LED)

[0001] The present invention relates to an integrated lighting device for an extension control, and more particularly, to an integrated lighting control device for an integrated extension control LED, in which the output of a converter circuit is combined without being separated, (LED) illumination device.

As disclosed in Korean Patent Registration No. 1219578, an incandescent lamp or a fluorescent lamp is mainly used as an illumination installed in a house or a building, and in recent years, a light emitting diode (LED) lamp using an LED module for illumination Are becoming popular for indoor lighting. LED lamps are used in various fields because they have advantages such as high luminance, low power, small size, light weight and semi-permanent use.

LED lamps, on the other hand, operate with a dimming device that reduces the energy consumption by adjusting the brightness of the lamp. The dimming device adjusts the brightness of the LED lamp by converting the existing AC commercial power source, that is, the 220V AC power source, to the DC power source and changing the output level thereof to the LED lamp.

Conventional dimmable LED lighting devices include a power supply, a power factor corrector (PFC), a DC / DC converter, a dimmer controller, an LED emitter, and an ON / OFF switch.

When the AC power source is converted into DC power and applied to the PFC, the LED lighting device corrects the power coefficient in the PFC and is transmitted to the LED light emitting unit through the DC / DC converter through the DC / DC converting unit. At this time, the brightness of the LED is adjusted as the user adjusts the dimming through the dimming controller while the ON / OFF switch is ON.

At this time, the conventional LED lighting apparatus has a separate ON / OFF switch. When the OFF signal is supplied through the ON / OFF switch, the standby power is minimized by switching the AC power to the standby state.

That is, the dimming controller for outputting the dimming signal and the ON / OFF switch for outputting the ON / OFF signal are provided independently and operate in the standby mode when the OFF signal is applied through the ON / OFF switch.

However, when the LED lighting apparatus receives the OFF signal through the ON / OFF switch and is in the standby mode, the DC power is not applied from the DC / DC converter to the LED light emitting unit. DC converter, and the standby power is continuously consumed.

In addition, since the conventional LED lighting apparatus must be equipped with an expensive dimming controller in order to adjust the brightness of the electric lamp, there is a problem that the equipment cost is increased.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an integrated extension control LED (light emitting diode) which is integrally connected to an output of a converter circuit, LED) illumination device.

An LED lighting device for integrated extension control according to a first embodiment of the present invention includes a plurality of first to N converters for receiving an AC current and converting the AC current into a DC current, an LED module for receiving a direct current from the first to N converters, And a plurality of first to N on-off switches connected to the first to N converters to intermittently apply power.

The first to N converters may be coupled to each other at least two; And the first to N converters are configured so as to constitute an LED converter circuit which does not collide with each other even when the output portions thereof are coupled to each other.

At least two of the first to N converters are provided and each has a different capacity.

The LED converter circuit includes an input overcurrent protection unit that protects the LED module by rubbing a fuse when an overcurrent occurs in the LED module, and an overcurrent protection circuit (EMI FILTER) for removing noise that can be leaked to the AC input line, a rectifying section for converting the AC power supplied to the input side into a DC power required for circuit operation by bridging the AC power supply, And a reactor for generating a secondary side DC voltage by inducing a voltage to the secondary side according to the winding ratio when switching the power factor correction (PFC), and generating a driving IC and a voltage required for driving the constant voltage constant current , A field-effect transistor (FET) is connected between the rectification part and the reactor, A PFC unit (Power Factor Correction) connected to the switching unit to protect an output overcurrent and to control an output voltage, and a PFC unit connected to the PFC unit to generate a constant voltage, a constant current And a rectifying and smoothing unit connected to the reactor to convert the switching voltage induced on the secondary side into a stable DC voltage source.

According to the LED lighting device for integrated extension control of the present invention, since a constant current constant voltage source is directly provided in the primary side auxiliary winding, a large number of first to N converters To adjust the brightness of the LED module, so that a separate dimming circuit is not needed, which not only reduces the equipment cost but also reduces standby power consumption.

1 is a block diagram of an LED lighting device for integrated extension control according to the present invention,
2 is a block diagram of an LED converter circuit according to 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, well-known functions or constructions are not described in detail since they may obscure the subject matter of the present invention.

[Example]

Fig. 1 is a block diagram of an LED lighting device for integrated extension control according to the present invention, and Fig. 2 is a block diagram of an LED converter circuit of the present invention.

As shown in FIGS. 1 and 2, the LED lighting device for integrated extension control according to the present invention includes a plurality of first to N converters for receiving an AC current and converting the AC current into a DC current, And a plurality of first to N on-off switches (1, 2, 3, ..., N) connected to the first to N converters to intermit the supply of power.

In the first to N-th converters, an LED converter circuit that does not collide with the output portions when they are coupled to each other is configured.

At least two of the first to N converters are provided and have different capacities.

As shown in FIG. 2, the LED converter circuit includes an input overcurrent protection unit for protecting the LED module by rubbing a fuse when an overcurrent occurs in the LED module, and a lightning- A surge protection part for protecting the LED module from excessive voltage of the surge, an EMI filter for eliminating noise that can be leaked to the AC input line, and an AC power supply to the input side. And a fourth-order winding. The secondary side DC voltage is generated by inducing a voltage to the secondary side according to the winding ratio in switching of the power factor correction (PFC), and the drive IC and the constant- A field-effect transistor (FET) connected between the rectifier and the reactor, A PFC unit (Power Factor Correction) connected to the switching unit for protecting an output overcurrent and controlling an output voltage, and a PFC unit connected to the PFC unit for controlling an output voltage A constant current circuit for inducing a constant voltage and a constant current on the vehicle side to sense the power and sensing the converter under abnormal conditions and a rectifying and smoothing unit connected to the reactor for converting the switching voltage induced on the secondary side into a stable DC voltage source.

The voltage of the secondary side is transmitted to the auxiliary winding of the primary side in accordance with the winding ratio of the reactor, and the voltage thus transmitted is supplied to the drive IC It is the primary side power sensing recalling circuit that compares.

Therefore, the LED converter circuit does not require a circuit other than the rectifying and smoothing part on the secondary side.

That is, the above-mentioned LED converter circuit has a rectifying and smoothing portion on the secondary side, and an isolated primary circuit has an electrostatic power and a constant current circuit, so that even if the output portion is combined, there is no electrical collision or malfunction.

Accordingly, the present invention is capable of forming a uniform illumination of the installation space by using the integrated expansion control method, eliminating glare and combining outputs of a plurality of different capacities, so that various stages of dimming For example, if the capacity of the first converter is 20 W, the capacity of the second converter is 30 W, and the capacity of the third converter is 50 W, then the first on / off switch 1 When the first and second on-off switches 1 and 2 are turned on, the LED module emits light at a brightness of 20 W. When the first and second on-off switches 1 and 2 are turned on, 1, 2, 3) are turned on, the LED module emits light with a brightness of 100 W.

As described above, the present invention does not require a separate dimming controller or device in addition to the converter, which can significantly reduce cost and eliminate unnecessary standby power.

The plurality of first to N converters of the present invention are basically a constant current drive required for driving the LED by simultaneously generating a constant current constant voltage source in the primary side auxiliary winding and can perform constant power driving at the same time.

Two or more of the first to N converters can operate without electrical collision even when they are connected to one light source unit, i.e., an LED module.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. And will be included in the described technical idea.

1, 2, 3, N: 1st, 2nd, 3rd, N on off switch

Claims (5)

delete delete delete delete A plurality of first to N converters for receiving and converting an alternating current into a direct current; An LED module which receives a direct current from the first to N converters and emits light; And a plurality of first to N on-off switches (1, 2, 3, ..., N) connected to the first to N converters, respectively, for controlling the application of power;
The first to N converters may be coupled to each other by at least two, and have different capacities, respectively;
Wherein the first to N converters comprise an LED converter circuit that does not collide even if the output portions thereof are coupled to each other;
The LED converter circuit includes: an input overcurrent protection unit for protecting the LED module by rubbing a fuse when an overcurrent occurs in the LED module and a component constituting the LED module; A surge protector for protecting the converter from an excessive voltage of a lightning stroke and a surge which can be input to the input side; An EMI filter for eliminating noise that may flow into the AC input line; A rectifying unit for bridging the AC power input to the input side and converting the AC power into a DC power required for circuit operation; And a reactor that generates a secondary side DC voltage by inducing a voltage to the secondary side according to the winding ratio during switching of the power factor correction (PFC) and generates a driving IC and a voltage required for driving the constant voltage constant current Wow; A switching unit connected between the rectifying unit and the reactor to store energy in the reactor while a field-effect transistor (FET) is switched; A PFC unit (Power Factor Correction) connected to the switching unit for protecting an output overcurrent and controlling an output voltage; A constant current circuit connected to the PFC unit to induce a constant voltage and a constant current on the secondary side and to sense the power to protect the converter under abnormal conditions; And a rectifying and smoothing unit connected to the reactor to convert the switching voltage induced on the secondary side into a stable DC voltage source;
The LED converter circuit is a primary side power sensing recoating circuit for transmitting a voltage of a secondary side to an auxiliary winding of a primary side in accordance with a winding ratio of the reactor and compiling the thus delivered voltage in a drive IC. Wherein the rectifying and smoothing part is provided, and the isolated primary side circuit has an electrostatic power and a constant current circuit so that no electrical collision or malfunction is caused even if the output part is combined.

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