KR20140104601A - Dimmer For LED Based Lighting - Google Patents

Abstract

The present invention relates to a dimming control device for LED lighting equipment. According to the present invention, the dimming control device for LED lighting equipment is arranged between an LED module to turn on the LED lighting equipment and a converter (SMPS) to convert AC supplied from the outside into DC to suit the conditions of the LED module. The dimming control device includes: a sensor module which has a built-in microwave sensor to detect a sensing signal by sensing a movement around the LED lighting equipment; an amplification module which removes noise from the sensing signal detected by the sensor module and which amplifies the sensing signal; a microprocessor module which determines the sensing signal inputted through the amplification module and generates a control signal for controlling a power source inputted to the LED module; and a PWM driving module which receives the control signal from the microprocessor module, generates a PWM signal, and controls the power source inputted to the LED module. Therefore, the dimming control device has the built-in microwave sensor for sensing a movement to be attached to the LED lighting equipment to automatically adjust the brightness of the LED lighting equipment without a separate controller, thereby improving compatibility whereby the dimming control device can be applied to a place where existing lighting equipment is arranged and significantly reducing average power consumption and installation costs. The dimming control device has a sensing signal interlocking module capable of transmitting and receiving a sensor sensing signal by being interlocked with a plurality of dimming control devices, thereby easily performing group work.

Description

{Dimmer For LED Based Lighting}

The present invention relates to a dimming control apparatus for an LED lighting apparatus, and more particularly, to a dimming control apparatus for an LED lighting apparatus, in which a microwave sensor for detecting motion is incorporated so that it can be attached to an LED lighting apparatus without a separate controller, It is possible to increase the compatibility that can be applied to the installed place, to dramatically reduce the average power consumption and the installation cost, and to provide the sensing signal interlocking module capable of transmitting and receiving the sensor sensing signal in cooperation with the plurality of dimmers, To a dimming control apparatus for an LED lighting apparatus.

2. Description of the Related Art Generally, a dimming control device for adjusting the brightness of an LED (light emitting diode) illumination is controlled by a separate controller through a wired or wireless system. The dimming switch provided in such a controller is provided with a variable resistance or a device for changing the voltage, and the dimming wiring is separately connected to the dimming device of the LED illumination.

In addition, in recent years, a dimming system has been applied to an underground parking lot in which a maximum illumination is maintained when motion of an object is sensed by interlocking with an operation monitoring sensor for monitoring the motion of an object, and a minimum illumination is maintained when the motion is not detected.

However, in the dimming system interlocked with the motion monitoring sensor, the operation monitoring sensor is installed separately for each LED lighting apparatus and the dimming control apparatus for controlling the operation monitoring sensor. In order to be connected to the operation monitoring sensor, a dimming wiring, Since the dimming control can be performed only through the switch, the wireless sensing unit, and the wireless operation unit, the power wiring of the existing lighting equipment installation environment can not be used, so that the compatibility is remarkably reduced and the power wiring and the control line must be newly installed The installation cost is increased.

In addition, since the conventional dimming control device for an LED lighting device does not support various converter methods (constant voltage method and constant current method) simultaneously, it operates only for a specific product. Therefore, There has been a problem of increasing.

Accordingly, a dimming control device for an LED illuminator, which supports a variety of converter schemes and at the same time incorporates a motion detection sensor to enhance interchangeability applicable to an environment in which a luminaire is installed and to easily link a plurality of dimming control devices with each other A realistic and highly utilizable technology that can be provided is desperately needed.

Korean Patent Publication No. 10-2010-0125799 2010.12.01

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above problems, and it is an object of the present invention to provide a microwave sensor for detecting motion, which is mounted on an LED lighting device without a separate controller, It is possible to improve the compatibility that can be applied to the place where the device is installed and dramatically reduce the average power consumption and the installation cost and by providing the sensing signal interlocking module capable of transmitting and receiving the sensor sensing signal in cooperation with the plurality of dimming control devices, And an object of the present invention is to provide a dimming control device for an LED lighting device capable of group interlocking.

According to an aspect of the present invention, there is provided an apparatus for controlling dimming of an LED illumination device, including: an LED module for emitting an LED illumination device; And a converter (SMPS) for converting a DC current into a direct current (DC) current, the dimming control device comprising: a sensor module having a microwave sensor for detecting a movement of the LED lighting device to detect a sensing signal; An amplification module for removing and amplifying a noise of the detection signal detected by the sensor module; A microprocessor module for discriminating a sensing signal inputted through the amplifying module and generating a control signal for controlling a power input to the LED module; And a PWM driving module that receives a control signal from the microprocessor module and generates a PWM signal to control power input to the LED module.

As described above, according to the present invention, a built-in microwave sensor for detecting motion is attached to an LED lighting device without a separate controller, and the brightness of the LED illumination is automatically adjusted to provide compatibility And can reduce the average power consumption and the installation cost dramatically. Also, it is possible to easily perform group interlocking by providing a sensing signal interlocking module capable of transmitting and receiving sensor sensing signals in cooperation with a plurality of dimming control devices. There is an effect of providing a device.

1 is a block diagram illustrating components of a dimming control apparatus for an LED illumination apparatus according to an embodiment of the present invention;
2 is a circuit diagram schematically showing a dimming control apparatus for an LED illumination apparatus according to an embodiment of the present invention.
3 to 8 are detailed circuit diagrams showing the detailed configuration of the circuit diagram shown in Fig. 2
9 is a graph comparing the power consumption of a lighting apparatus according to the related art and the power consumption of a lighting apparatus using a dimming control apparatus for an LED lighting apparatus according to an embodiment of the present invention

A dimming control device for an LED lighting device according to the present invention includes an LED module for emitting an LED lighting device and a converter for converting an AC current supplied from the outside into a DC current according to the condition of the LED module SMPS).

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are block diagrams and circuit diagrams illustrating components of a dimming control apparatus for an LED illumination apparatus according to an embodiment of the present invention.

The dimming control apparatus 100 for an LED illuminator according to an embodiment of the present invention includes a sensor module 110, an amplification module 120, a microprocessor module 130, a PWM driving module 140 A constant voltage module 150, and a sensing signal interlocking module 160.

More specifically, the sensor module 110 incorporates a microwave sensor that senses a motion around the LED lighting device and senses a sensing signal. The amplification module 120 senses the sensed The amplification module 120 may include an operational amplifier OP AMP for amplifying the sensing signal detected by the microwave sensor of the sensor module 110, The microprocessor module 130 determines a sensing signal input through the amplification module 120 and generates a control signal for controlling the power supplied to the LED module 1.

The PWM driving module 140 receives a control signal from the microprocessor module 130 to generate a PWM signal to control power supplied to the LED module 1, The sensing signal interlocking module 160 converts the detection signal discriminated by the microprocessor module 130 into a voltage of DC 5V to DC 60V which is inputted from the microcomputer module 2 to the other dimming control device Or receives a sensing signal coming from another dimming control device.

The dimming control apparatus 100 for an LED illuminator according to an exemplary embodiment of the present invention further includes a control module 170, a test switch 180, and a sensor sense indicator 190.

Here, the control module 170 controls a sensor sensing distance at which the microwave sensor of the sensor module 110 senses a sensing signal, a dimming time, and a minimum illuminance and a maximum adjustment of an LED module that emits light for the LED illumination And the test switch 180 tests the minimum illuminance and the maximum adjustment of the LED module 2 that emits the LED lighting fixture and the sensor sense indicator 190 senses the light intensity of the microwave sensor Is displayed on the display unit 40. The display unit 40 displays a case in which the LED 40 detects the movement of the LED lighting fixture.

3 to 8 are detailed circuit diagrams showing the detailed configuration of the circuit diagram shown in Fig.

3 to 8, the operation of the dimming control apparatus 100 for an LED illuminator according to an embodiment of the present invention will be described in detail.

The dimming control device 100 for an LED lighting device according to an embodiment of the present invention is provided between the LED module 1 and the converter 2 to supply power to the LED module 1 through the PWM driving module 140 at a frequency of 1 KHz And controls the brightness of the LED illumination device due to the afterimage experienced by the human being and the residual image caused by the LED module because the LED module 1 is repeatedly turned on and off. If the built-in microwave sensor detects the movement around the LED lighting fixture, it quickly changes the LED module to the maximum illumination level, so that the average power consumption when applied to an underground parking lot that is normally lit for 24 hours using a conventional fluorescent lamp The effect can be dramatically reduced.

More specifically, the microwave sensor 111 incorporated in the sensor module 110 shown in FIG. 3 is an X-band Doppler motion sensor using 10.525 MHz as an operating frequency, and a DR oscillator It consists of a diode resonator oscillator, a passive diode mixer, and a patch antenna. These sensors have a sensing characteristic that is fast enough to be used for speed measurement. When the sensor detects movement from outside the device, And the signal is inputted to the amplification module 120 in the direction of reference A in FIG. The capacitor elements C6 and C7 provided in the sensor module 110 shown in the drawing serve to remove noise and the resistor element R17 functions to remove the RF input signal sensed by the microwave sensor 111 And adjusts the impedance.

In the embodiment of the present invention, since the sensing signal transmitted from the sensor module 110 is very weak with respect to the direction A in the drawing, the amplifying module 120 of FIG. 4 uses a plurality of operational amplifiers 121, Amplifies the sensed signal, separates the sensed signal and noise, and detects the sensed signal. The sensed signal is input to the microprocessor module 130 in the direction of reference B in FIG. Here, the amplifying module 120 includes DC block capacitor elements C14 and C15 for removing noise and AC signal ground capacitor elements C17 and C21 as shown in the figure and is connected in parallel And a capacitor element C18 and a resistance element R16 connected and coupled. The resistor elements R2, R15, R12, R13, and R11 and the capacitor elements C12, C13, and C20 constituting a feedback circuit for adjusting the amplification factor around the operational amplifier 121 composed of two stages .

The microprocessor module 130 of FIG. 5 receives the detection signal detected from the amplification module 120 in the direction of the reference numeral B in FIG. 5 to determine whether the sensor is sensed based on the sensitivity of the sensor designated to a specific level, To the PWM driving module 140 or receives the sensing signal of the other dimming control device from the sensing signal interlocking module 160 to determine the frequency of the PWM signal and controls the PWM driving module 140. At this time, the microprocessor module 130 receives a control signal of the control module 170 and the test switch 180, processes the sensor signal, and controls the sensor sense indicator 190 to detect the two colors. And controls the operation of transmitting the sensing signal detected by the amplifying module 120 to the other dimming device through the sensing signal interlocking module 160. The dimming control apparatus according to an embodiment of the present invention includes a reset switch unit 132 and a microprocessor to supply a clock to the microprocessor module 130 in order to solve the error of the microprocessor due to unstable input power, It is preferable that the oscillation circuit portion 131 is provided.

5, in an embodiment of the present invention, the control module 170 uses a variable resistor that can be manually adjusted to adjust the sensor sensitivity (sensing distance), minimum brightness, maximum brightness, dimming A control value is input to the microprocessor module 130 to generate a signal for controlling the PWM driving module 140. [ That is, the control module 170 adjusts the sensor sensing distance, the dimming time, and the minimum illumination and maximum adjustment of the LED module that emits the LED illumination device, using a manually adjustable variable resistor.

Also, the test switch 180 is a switch that facilitates testing by manually setting the minimum illuminance and the maximum illuminance of the LED illumination. The sensor sense indicator 190 includes a plurality of color-separated light emitting diodes, When the sensor senses movement around the LED lighting device, a green LED (green LED) When no movement is sensed for a predetermined period of time, all of the LEDs are turned off. At this time, the LED module 1, which emits the LED lighting device, And is dimmed.

6 receives the control signal from the microprocessor module 130 to determine the output frequency of the PWM signal in the direction of the reference numeral C in the drawing and outputs a current of 40 mA to 120 mA and a current of 2.5 W to 50 W And the output corresponding to the power consumption is controlled using the bias resistors R8 and R9 and the transistor Q1. PWM output waveforms are different depending on the output power to be controlled. As the output power is higher, the time for lighting the LED lighting device relatively becomes longer. The LED lighting applicable to the dimming control apparatus according to the embodiment of the present invention can control the input voltage (converter output voltage) from DC 10V to DC 60V and power consumption from 2.5W to 50W according to the output range of the power consumption mentioned above . Meanwhile, the PWMR driving module 140 according to the embodiment of the present invention includes the power divider 141 and the fuse F1 shown in the figure and is connected to the connector CN1 of the converter in a wrong way, To protect the circuit from.

The sensing signal interlocking module 160 of FIG. 7 transmits the motion sensing signal sensed by the dimming control device according to the present invention to a different dimming control device in the direction of D, Signal, and unlike a conventional dimming control device, a group dimming function is implemented by interlocking with an interlocking terminal of a dimming control device without a separate controller, and by linking them in groups regardless of the number of lamps for LED illumination. That is, when the microprocessor module 130 determines that the microprocessor of the sensor module 110 detects the external operation, the sensing signal interlocking module 160 uses the driving amplifier 161 to input And outputs the amplified detection signal. At this time, the output transmission and reception waveforms Tx and Rx are the same as the sensing signal, and the resistance values R101 and R102 of the output stage are set to values for adjusting the impedance in consideration of the number of the dimming control devices to be interlocked.

The constant voltage module 150 shown in FIG. 8 converts a high DC voltage to a low DC voltage and receives an output voltage DC10V to DC60V of the converter 2 to supply power to the dimming device according to an embodiment of the present invention. And outputs the constant voltage DC 5V voltage for use. At this time, the constant voltage module 150 preferably supplies a current up to 1200 mA, which is the required maximum value of the PWM drive module. In addition, as shown in the figure, the constant voltage module 150 is connected to a constant voltage transistor (not shown) so as not to affect sensitivity to motion detection of a microwave sensor in order to remove a high frequency component 151, the coil L1 and the capacitor elements C2, C3, and C4 capacitors.

FIG. 9 is a graph comparing the power consumption of a lighting apparatus using a conventional fluorescent lamp and the power consumption of a lighting apparatus using a dimming control apparatus for an LED lighting apparatus according to an embodiment of the present invention.

As shown in the drawing, the power consumption of a lighting apparatus using a dimming control apparatus for an LED lighting apparatus according to an exemplary embodiment of the present invention is reduced by 90% or more as compared with a conventional lighting apparatus using a fluorescent lamp.

As described above, according to the present invention, since the microwave sensor for detecting motion is incorporated, it is attached to the LED lighting device without any additional controller, and the brightness of the LED illumination is automatically controlled to improve the compatibility with the existing LED lighting device A dimming control device for an LED illuminator capable of easily group interlocking by providing a sensing signal interlocking module capable of interrupting the average power consumption and the installation cost and transmitting and receiving sensor sensing signals in cooperation with a plurality of dimming control devices There is an effect to provide.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It is within the scope of the present invention that component changes to such an extent that they can be coped evenly within a range that does not deviate from the scope of the present invention.

1: LED module 2: converter
100: dimming device 110: sensor module
120: amplification module 130: microprocessor module
140: PWM driving module 150: constant voltage module
160: Detection signal interlocking module 170: Control module
180: Test switch 190: Sensor detection indicator

Claims (10)

A dimming control device for an LED lighting device provided between an LED module for emitting an LED lighting device and a converter (SMPS) for converting an AC current supplied from the outside into a DC current according to the condition of the LED module In this case,
A sensor module including a microwave sensor for detecting movement of the LED lighting device and detecting a detection signal;
An amplification module for removing and amplifying a noise of the detection signal detected by the sensor module;
A microprocessor module for discriminating a sensing signal inputted through the amplifying module and generating a control signal for controlling a power input to the LED module; And
And a PWM driving module for receiving a control signal from the microprocessor module and generating a PWM signal to control power supplied to the LED module.
The driving apparatus according to claim 1,
Wherein a fuse is provided to prevent reverse voltage from being applied when a connector connected to the converter (SMPS) is connected.
The method according to claim 1,
And a constant voltage module for converting a voltage ranging from DC 10V to DC 60V inputted from the converter (SMPS) to a constant voltage of DC 5V.
The method according to claim 1,
And a sensing signal interlocking module for transmitting the sensing signal discriminated by the microprocessor module to another dimming control device or receiving a sensing signal from another dimming control device.
[5] The apparatus of claim 4,
And a driving amplifier for amplifying the sensing signal discriminated by the microprocessor module.
[2] The apparatus of claim 1,
And an operational amplifier (OP AMP) is configured in two stages to amplify the sensing signal detected by the microwave sensor of the sensor module.
The method according to claim 1,
And a control module capable of controlling a sensor sensing distance for sensing a sensing signal, a dimming time, and a minimum illumination and maximum adjustment of an LED module that emits the LED lighting device, wherein the microwave sensor of the sensor module comprises: Dimming control device for LED light fixture.
The control module according to claim 7,
Wherein the controller adjusts the sensor sensing distance, the dimming time, and the minimum illumination and maximum adjustment of the LED module that emits the LED illumination device using a manually adjustable variable resistor.
The method according to claim 1,
And a test switch capable of manually testing and adjusting a minimum illuminance and a maximum adjustment of an LED module for emitting light of the LED illumination device.
The method according to claim 1,
And a sensor detection indicator comprising a light emitting diode for indicating whether the microwave sensor of the sensor module senses the movement of the light emitting diode in the vicinity of the LED illumination device.

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