KR101570181B1 - Apparatus for outputting Multi Electric Power Channel for LED Lamp device and Method thereof - Google Patents

Abstract

The present invention relates to an apparatus and a method for outputting multiple power channels for an LED lighting apparatus, which can be used in various LED lighting apparatuses having different power consumption, and is capable of stably supplying multi-channel voltage to LED lighting apparatuses.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a multi-power channel output device and method for an LED lighting device,

The present invention relates to an apparatus and method for outputting multiple power channels for an LED lighting apparatus, and more particularly, to a multi-output apparatus and method for an LED lighting apparatus that can be used for various LED lighting apparatuses with different power consumption, .

In general, a converter of an output device for an LED lighting device is mounted inside a case of an LED lighting device and converts the input commercial AC power into a DC power source capable of appropriately lighting the LED lamp, Means a configured device.

In recent years, due to the superiority of the high brightness and low power saving of LED lamps, the conventional fluorescent lamps have been used instead of conventional fluorescent lamps, so that conventional fluorescent lamps are removed from ceilings and walls as in the case of straight- LED lighting devices are increasingly being used.

In order to drive a light source using an LED device, it is necessary to appropriately convert a commercial power source to convert it into a voltage level required by an LED light source, and to supply the device with a high efficiency power efficiency because a commercial power source is composed of a 220V AC power source. Various DC-DC converters have been developed.

In general, a LED lighting device is mainly used as a converter which converts only a specific DC voltage suitable for the lighting device. Such a converter is difficult to apply to an LED lighting device requiring a different input voltage.

Domestic Publication No. 10-2006-0094768

In order to solve such a problem, the present invention provides a multiple power channel output apparatus and method for an LED lighting apparatus that can be used in various LED lighting apparatuses with different power consumption and can stably supply multiple output voltages to an LED lighting apparatus .

According to an aspect of the present invention, there is provided a multi-power channel output apparatus for an LED lighting apparatus, including: a rectifier for rectifying a silver input AC voltage to a first DC voltage based on a FET element A first rectifying part (10); A power converter (30) including second rectifier elements (34) for converting the first DC voltage and outputting a second DC voltage; And a variable resistor (50) including a variable resistor (51) capable of varying a load to output the second DC voltage as a plurality of DC voltages,

The power conversion unit 30 includes a switching unit 31 for switching the first DC voltage to an AC voltage by the switching device FET; A converter (32) for converting the switched AC voltage based on a plurality of primary windings and a plurality of secondary windings; And rectifying units (33, 34) for outputting a second DC voltage determined in advance based on a full-wave rectification method and a smoothing operation on the converted output AC voltage based on the conversion unit.

According to another aspect of the present invention, there is provided a method of outputting a plurality of power channels for an LED lighting apparatus, including: outputting a first DC voltage having an input AC voltage rectified by a FET operated by a gate based on a PFC output signal; The first DC voltage is switched to an AC voltage, and the voltage is stepped up through a transformer having a plurality of primary sides and a plurality of secondary sides, rectified and smoothed to output a second DC voltage; And adjusting the variable resistive portion so that the direct current voltages corresponding to the respective lighting devices having different power consumption values are output for the second direct current voltage; Lt; / RTI >

The present invention relates to a multi-power channel output apparatus and method for an LED lighting apparatus, and is capable of supplying power to various LED lighting apparatuses having different power consumption and supplying multiple voltages stably to the LED lighting apparatus.

1 is a circuit diagram showing a multiple power channel output device for an LED lighting device according to the present invention.
2 is a flow chart illustrating a multiple power channel output method for an LED lighting apparatus of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. It is to be understood that the scope of the present invention is not limited to the following embodiments, and various modifications may be made by those skilled in the art without departing from the technical scope of the present invention.

1 is a circuit diagram showing a multiple power channel output apparatus for an LED lighting apparatus according to the present invention.

First, the general purpose, structure, and operation of the present invention are as follows.

1) Explanation of the Present Invention: It is a PS (Power Supply) function as a power source of a LED lighting apparatus which is used for lighting by combining light emitting diodes manufactured using light emitting wafers made of P and N junctions according to standards.

In order to supply the stable Vcc by generating the voltage suitable for the LED lighting device to be used by converting the AC power to DC, the voltage channel which is the conventional one-port dedicated power source is multiplexed and one set of DC- (Voltage) for the LED to be used in the voltage of 4 channels), and it is possible to realize compatibility and maneuverability in the field with this power supply, Diversity of the apparatus can be achieved.

In addition, considering the limitation of installation space and place of the lighting equipment, the AC frequency (60Hz) is adjusted upwards (200khz) to achieve miniaturization of all the parts, so that the size of the self-external standard is much smaller than that of the conventional converter (DC-DC) And the limitations of places.

Since the embodiment of the present invention is a function requiring a multiple transfer channel, when the conventional rectification method is adopted because the amplitude of the output voltage is large compared to the input, a high temperature is generated and a lot of electric power is inevitably wasted. Thus, heat loss and unstable voltage generation (Increased type N-channel MOS FET) 12, which is a relatively stable FET device, is used to overcome heat loss and instability, thereby realizing safety.

Of course, the conventional diode rectification method using a diode has advantages of less voltage loss but adopts the FET method in which high efficiency is ensured by a small amount of heat loss because heat loss is more caused by generation of high temperature than this advantage.

2) Description of Fig. 1: The purpose of the embodiment of the present invention is to provide a power supply for each LED lighting apparatus and to supply a stable power source. In addition, when installed at a narrow installation site or outdoors, It is a second object to reduce the size and weight of components in the initial design. There are various methods for realizing miniaturization of products, but in the embodiment of the present invention, a frequency (resonance type) amplification method (using 32, 33, etc. in FIG. 1) is used.

Since the frequency of electric current which is commonly used in Korea is set to 60HZ, this frequency (60HZ) is amplified to 200KHZ by the resonance type method.

If a multi-power channel is applied without amplification, the external size of the product is inevitable. However, since the high temperature is generated in the rectification process, unnecessary voltage loss is excessive and power factor loss is large, which is a power dissipation factor.

If the INPUT power frequency just before the secondary rectifier circuit is adjusted to 200KHZ, the rectifier circuit element and DOWN TRANS (transformer), which are core components in power supply rectification, will be miniaturized, and the built-in condenser The size and external shape of the housing 34 are reduced, and the overall product is downsized.

In order to develop a product with an economical low-voltage consumption type, a first rectification process (see FIG. 1 (a) and FIG. 1 10 and 12), the power factor controll (13) circuit is combined to maximize the power factor (98%) and extend the bandwidth against the input voltage fluctuation (INPUT AC85 ~ AC265 V) against some input voltage variations.

DC OUT voltage rectification has a relatively high voltage regulation interval and high temperature may occur. Therefore, the conventional diode rectification method is eliminated and a stable rectification circuit is constructed by using the FET device 12 of the MOS type increase type N-channel type .

3) Principle of Operation: The power control volume 51 is used to realize diversity (multi-power channel, FREE ROAD) and power consumption diversity of the most important function among the functions of the embodiment of the present invention.

The input voltage of the device 30 can be increased up to 400 VAC through the switching unit 31 and its own frequency is amplified to 200 kHz at the rear end (based on 32 and 33 in FIG. 1) The PUT voltage (60V) can be adjusted from 50W to 200W using the power control volume (51).

The principle is to set the channel contact to the power control volume (51) in the sequence control format and to use it by setting the desired output power with the synchronous conversion SELECTOR S / W.

4) Thus, the DC-DC converter 30 meets the test standard.

  - 50W: Power factor 97% Efficiency 93.6% Third harmonic 6.5%

  - 100W: Power factor 98% Efficiency 93.5% Third harmonic 6.7%

  - 150W: Power factor 96% Efficiency 94% Third harmonic 6.65%

- 200W: Power factor 95% Efficiency 92.6% Third harmonic 6.53%

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to FIG. 1, which is an embodiment of the present invention.

1, an input AC voltage (not shown) applied through the lower left terminal CON1 of the rectifying unit 10 of FIG. 1 is rectified to a first DC voltage (DC 400V) based on the FET element 12 A first rectifying part (10); A second rectifier element for converting the first direct current voltage to output a second direct current voltage, and a second rectifier element for converting the second direct current voltage into a variable direct current voltage, A variable regulating portion 50 including a resistor portion 51; .

DC converter 30 is connected in parallel to the input rectifier 10 and the DC-DC converter 30 corresponding to the first rectifier 10, and the second harmonic (not shown) output from the input rectifier is connected to the DC- DC converter is configured to operate using at least one of a resistance and a con- tent to save a third harmonic (not shown) to be output by the rectifier 33 in the DC-DC converter, And a multichannel unit 40 capable of outputting a second DC voltage (60V) applied and outputted as a plurality of DC voltages.

The PFC 13 is constituted in the input rectification part 10 corresponding to the first rectification part 10 or connected to the input rectification part 10 to constitute a PFC 13 for power factor compensation or rise. In addition, the input rectifier 10 includes an increase-type N-channel MOS FET 12 and an inverse parallel Zener diode connected in parallel to the FET in the reverse direction. The FET 12 is an enhancement type N-channel MOS FET in which the gate is turned on when the output applied voltage from the PFC 13 is higher than a predetermined value. Accordingly, the input AC voltage is rectified through the first rectification part 10 as described above, and is output as the 400V DC voltage 11, and the output voltage is a half-wave rectified voltage for a positive half period.

The first DC voltage (400 V) 11 output through the input rectifying section 10 is switched to the AC voltage by the switching element FET 31 in the DC-DC converter 30, which is the power conversion section 30, A switching unit (31) for switching an output of the switching unit; Wherein the switching AC voltage is converted by a plurality of primary windings (first primary winding and second primary winding) and a plurality of secondary windings (first secondary winding, second secondary winding and third secondary winding) 32); And a converter 34 for converting the converted output AC voltage based on the conversion unit 34 to a predetermined second DC voltage 34 through a smoothing operation 34 through respective rectification methods (full-wave rectification by a zener diode and a diode) And rectifying sections 33 and 34 for outputting a voltage of 60V.

And a constant voltage control unit (35, 36) in the DC-DC converter (30) as the power conversion unit or connected to the DC-DC converter (30) to control the DC-DC converter to output a constant voltage . That is, the power control unit compares the power output value selected and output through the variable control unit and the multi-channel unit with the power output value by the variable control unit, and amplifies the power for compensating the power factor so that the constant voltage is output from the DC- And the like.

The variable regulator 50 includes a variable regulator 50 including a variable resistor 51 that can vary the load VR1 to output the second DC voltage 60V as a plurality of DC voltages, ); . Accordingly, power can be supplied to the corresponding LED through the corresponding channel of the multi-channel unit 40 by adjusting the variable resistance unit to match the output standard of the LED to be used.

The conversion unit 20 is disposed between the input rectification unit 10 and the DC-DC converter 30 and is configured in parallel with the input rectification unit 10 and the DC-DC converter 30, (Not shown) to be output by the DC-DC converter with respect to the second harmonic (not shown) output from the rectifying unit is saved according to the mutual operation of the resistance or / and the content in the conversion unit. It is necessary to preserve the third harmonic in order to improve the power factor in the DC-DC converter.

2 is a flow chart illustrating a multiple power channel output method for an LED lighting apparatus of the present invention.

2, a predetermined input AC voltage input through the left side CON1 of the input rectification part 10 of Fig. 1 is rectified by the FET 1 whose gate is operated based on the PFC 13 output signal CS, At this time, the first DC voltage (400V) which is half-wave rectified during the positive half period is outputted. (S 201)

The first DC voltage is switched to an AC voltage by the switching unit 31 and is input to the transformer 32 and is stepped up through a transformer 32 having a plurality of primary sides and a plurality of secondary sides, The second DC voltage 60V is rectified and smoothed based on the first DC voltage 33 and the second DC voltage 34c. (S 203)

The variable resistor unit 51 is adjusted so that the DC voltages corresponding to the respective lighting apparatuses having different power consumption values are output to the second DC voltage. (S 205)

Further, for the second harmonic (not shown) in which the first DC voltage is output, an operation for saving a third harmonic (not shown) in which the second DC voltage is outputted at the time of outputting is performed by the converter 20 .

Therefore, by the circuit and operation of the present invention as described above, it is possible to supply power to various LED lighting apparatuses having different power consumption, and to supply multiple voltages stably to the LED lighting apparatus.

10: a first rectification part (input rectification part), 11: a DC voltage rectified and outputted by the first rectification part, 12: a rectification part FET,
20: converter (inverter) for saving the third harmonic wave,
A second rectifying part (output rectifying part), 35, 36: a constant voltage control part, and a second rectifying part,
40: Multi-channel unit
50: variable regulating portion, 51: variable resistor portion (volume)

Claims (9)

An input rectifying part (10) for rectifying an input AC voltage;
A PFC unit (13) in the input rectification unit or connected to the input rectification unit for power factor compensation or rise;
A DC-DC converter 30 for converting a first DC voltage applied from the input rectifier;
A multi-channel unit 40 that is output through the DC-DC converter and is capable of outputting a full-wave rectified and applied second DC voltage as a plurality of DC voltages; And
A variable regulator (51) capable of varying a resistance so that a second DC voltage applied to the multi-channel unit is output as a different multiple voltage value;
DC converter 30 in parallel with the input rectifier 10 and the DC-DC converter 30 in order to conserve the third harmonic to be output by the DC-DC converter with respect to the second harmonic output from the input rectifier And a conversion unit (20) for converting the output of the light source into a digital signal.
The power supply apparatus according to claim 1, wherein the input AC voltage input to the input rectifying unit (10) is an increase type N channel which is operated by turning on the gate when the output applied voltage from the PFC (13) And is rectified to a DC voltage based on the MOS FET (12).
3. The apparatus of claim 2, wherein the voltage output by the input rectifier (10) is a half-wave rectified voltage for a positive half-period.
The apparatus according to claim 1, further comprising: a constant voltage control unit (35, 36) in the DC-DC converter (30) or connected to the DC-DC converter (30) to control a constant voltage output from the DC- Wherein the light emitting device is a multi-power channel output device for an LED lighting device.
A step in which an input AC voltage is rectified by an FET whose gate is operated based on a PFC output signal, and a first DC voltage having a half-wave rectified is outputted;
The first DC voltage is switched to an AC voltage, and the voltage is stepped up through a transformer having a plurality of primary sides and a plurality of secondary sides, rectified and smoothed to output a second DC voltage; And
Adjusting the variable resistive portion so that each DC voltage corresponding to each lighting device having different power consumption values is output to the second DC voltage; Lt; / RTI >
Wherein an operation for saving a third harmonic output at the time of outputting of the second DC voltage with respect to a second harmonic outputted at the time of outputting the first DC voltage is performed in the conversion section (20) A method for outputting multiple power channels for a device. delete delete delete delete

Images