TW201328430A - LED lighting device and driving method thereof - Google Patents

Abstract

A light emitting diode (LED) lighting device and a driving method thereof are disclosed. The LED lighting device includes a switch article, a LED module, a driver, a counter, and a selection module, wherein the LED module includes a light-mixing device and a plurality of LED light bar groups, and each of the LED light bar groups includes a plurality of LED light bars. In the driving method of the LED lighting device, at first, the switch is provided for a switching operation of a user. Thereafter, the counter is used to record the times of the switching operation of the user. Then, at least one of the LED light bar groups are selectively powered in accordance with the times of the switching operation recorded by the counter. Thereafter, the light-mixing device is used to mix the light emitted by the at least one of the LED light bar groups.

Description

Light-emitting diode lighting device and driving method thereof

The disclosure relates to a light-emitting diode lighting device and a driving method thereof.

Since the Light Emitting Diode (LED) has the advantages of small size, light weight, excellent illuminating effect, energy saving, and no pollution, the illuminating diode is very suitable for the illuminating source of the luminaire. Moreover, compared with the lamps made of general light bulbs, the light-emitting diode lamps are not easy to be broken and the brightness decay period is long, so the light-emitting diodes are considered to replace the existing lighting devices and become an important development of the lighting industry. aims.

Since the output brightness of the light-emitting diode lamp is related to the current intensity flowing through the light-emitting diode, most of the current light-emitting diode lamps use analog impedance dimming or digital communication protocol dimming (DALI). The method is to drive a light-emitting diode lamp to change the light color (or color temperature) of the light-emitting diode lamp. However, such a dimming method is completely different from that of a conventional luminaire, so it is difficult for a user who is accustomed to a conventional luminaire to get used to this dimming method.

Therefore, there is a need for a new light-emitting diode lighting device and driving method to enable the user to easily adjust the light color of the light-emitting diode.

One aspect of the present invention is to provide a light-emitting diode lighting device and a driving method thereof, which employ a driver having a multi-segment switch control function to provide a dimming mode that a user is accustomed to.

According to an embodiment of the invention, the LED lighting device comprises a switch, a light emitting diode module and a driver. The open relationship is for the user to perform the switching action. The LED module includes a light mixing device and a plurality of LED light bars. The light mixing device has a first side and a second side. The light emitting diode strip is disposed adjacent to the first side surface and the second side surface of the light guide plate. The driver is electrically connected between the switch and the LED module to control the LED strip according to the switching action of the user. The drive contains a counter and a selection module. The counter is used to record the number of times the user switches the switch. The selection module is configured to selectively provide power to at least one of the light emitting diode strips according to the number of switching times recorded by the counter, and cause the at least one light emitting diode strip to emit light.

In accordance with another embodiment of the present invention, the LED illumination device includes a plurality of groups of light emitting diode strips, and each of the LED strip groups includes a plurality of light emitting diode strips. In the above-described method of driving a light-emitting diode lighting device, a switch is first provided for a user to perform a switching operation. Next, a counter is used to record the number of times the user switches the switch. Then, at least one of the groups of the light emitting diode strips is selectively supplied with power according to the number of switchings recorded by the counter. Then, the light mixing device is used to mix the light emitted by the at least one light-emitting diode strip group.

As can be seen from the above description, the LED lighting device and the LED lighting device driving method of the embodiment of the present invention use a driver including a counter and a selection module to drive the LED group, so that The number of times the user switches the switch to switch the group of light-emitting diodes in the light-emitting diode illumination device to adjust the light color of the light-emitting diode illumination device. In addition, the light-emitting diode lighting device of the embodiment of the present invention uses a mixing device to mix the light of the light-emitting diode strip of the light-emitting diode strip group, so that the light color of the light-emitting diode lighting device can be more More changes.

Please refer to FIG. 1 and FIG. 2 simultaneously. FIG. 1 is a functional block diagram of a light-emitting diode lighting device 100 according to an embodiment of the present invention, and FIG. 2 is a schematic diagram showing a light-emitting diode according to an embodiment of the invention. Schematic diagram of the body module 130.

The LED lighting device 100 includes a switch 110, a driver 120, and a light emitting diode module 130. The switch 110 is used for the user to perform a switching action to adjust the light color (or color temperature) of the light-emitting diode illumination device 100. In the present embodiment, the switch 110 may be a rocker switch as shown in FIG. 3, but the embodiment of the present invention is not limited thereto. The LED module 130 includes a plurality of LED light bar groups (eg, LED strip groups 132, 134) and a light mixing device 136. The light-emitting diode strip groups 132 and 134 are disposed adjacent to the light mixing device 136 to mix the light emitted by the light-emitting diode strip groups 132, 134 by the light mixing device 136. In the embodiment, the light mixing device 136 may be a rectangular light guide plate, but embodiments of the present invention are not limited thereto.

In the LED module structure shown in FIG. 2, the LED strip group 132 includes LED strips 132a and 132b, and the LED strip group 134 includes LEDs. The body light strips 134a and 134b are provided with a plurality of light emitting diode wafers LCDC on each of the light emitting diode strips. In this embodiment, the LED strips 132a and 132b of the LED strip group 132 are disposed adjacent to opposite sides (or side surfaces) 136a and 136c of the light mixing device 136, and the second light is emitted. The LED strips 134a and 134b of the polar strip group 134 are disposed adjacent to the other opposite sides 136b and 136d of the light mixing device 136. However, the arrangement of the LED strips in the embodiment of the present invention is not Limited by this. In other embodiments of the present invention, the LED strips 132a and 132b of the LED strip group 132 can be disposed adjacent to the two adjacent sides 136a and 136b of the light mixing device 136, and the LEDs The LED strips 134a and 134b of the strip group 134 can be disposed adjacent to two adjacent sides 136c and 136d of the light mixing device 136.

The driver 120 is electrically connected between the switch 110 and the LED module 130 to selectively drive a part of the LEDs in the LED module 130 according to the number of times the user switches the rocker switch 110. Body light strip. For example, when the user switches the rocker switch once, the driver 120 correspondingly turns on the light-emitting diode strip group 132 in the LED module 130 to make the LED strip group 132 emit light. The diode strips 132a and 132b emit light. For example, when the user switches the rocker switch twice, the driver 120 turns on the light-emitting diode strip group 134 in the LED module 130 accordingly, so that the diode strip group 134 The LED strips 134a and 134b emit light.

In the present embodiment, the driver 120 includes a counter 122 and a selection module 124. The counter 122 is used to record the number of times the user switches the switch, and the selection module 124 selectively connects the LED strip groups 132 and 134 to the external power source according to the number of switching times recorded by the counter 122. A device to provide power to the corresponding group of light-emitting diode strips to illuminate.

The selection module 124 of this embodiment may be composed of a plurality of transistor switches. These transistor on relationships are controlled by counter 122 to turn on or off based on the control signals output by counter 122.

In addition, the driver of the embodiment of the present invention is not limited to simultaneously turning on all the light-emitting diode strips in a group of light-emitting diode strips. In other embodiments of the invention, the driver can only turn on one of the light emitting diode strips in a group of light emitting diode strips. For example, when the user switches the rocker switch once, the driver 120 will turn on the light-emitting diode strip 132a in the light-emitting diode strip group 132 accordingly. For another example, when the user switches the rocker switch twice, the driver 120 turns on the light-emitting diode strip 132b in the light-emitting diode strip group 132 accordingly. For another example, when the user switches the rocker switch 3 times, the driver 120 turns on the light-emitting diode strips 132a and 132b in the LED strip group 132 accordingly.

It is to be noted that, since the LED module 130 of the embodiment of the present invention includes the light mixing device 136, when the LED strips 132a and 132b are simultaneously turned on, the light mixing device 136 will emit the LED. The light rays of the light strips 132a and 132b are mixed, and the light color (or color temperature) of the light emitting diode module 130 at this time is different from the light color when the single light emitting diode light strip (132a or 132b) emits light.

Please refer to FIG. 3 , which is a schematic flow chart of a driving method 300 of the LED lighting device 100 according to an embodiment of the invention. In the driving method 300, the switching step 310 is first performed to provide the above-described switch 110 for the user to switch to adjust the color of the light of the LED illumination device 100. Then, a counting step 320 is performed to calculate the number of times the user switches the switch 110. In the present embodiment, the number of times the user switches the switch 110 refers to the number of times the switch 110 is cut to the "on" state. Please refer to FIG. 4, which is a schematic structural diagram of a switch 110 according to an embodiment of the present invention. The surface of the switch 110 has an indicator "on", which means that when the user presses the rocker on the "on" side, the switch 110 will "turn on" and provide power to the LED module through the driver. Group 130.

Returning to FIG. 3, after counting step 320, a selection step 330 is then performed to selectively provide power to the LED strip group (or LED strips) based on the number of switchings recorded by the counter. At least one of them to cause the light-emitting diode strip group to emit light. Then, a light mixing step 340 is performed to mix the light colors of the light-emitting diode strip group by the light mixing device.

It can be seen from the above description that the LED illumination device 100 and the driving method 300 provided by the embodiments of the present invention provide a convenient dimming mode. The user can adjust the light-emitting diode lighting device 100 only by switching the switch. Furthermore, the light-emitting diode illumination device 100 uses a light mixing device to mix the light of the light-emitting diode light strip, so that the light-emitting diode illumination device 100 can provide a variety of light colors for the user to select. For example, the LED illumination device 100 can include a red LED strip, a blue LED strip, and a green LED strip. The LED device 100 can provide red and basket. Color and green light, but also magenta, yellow, cyan and white light.

Please refer to FIG. 5 , which is a schematic structural diagram of a light emitting diode module 530 according to another embodiment of the present invention. The LED module 530 is similar to the LED module 130, but differs in the LED array of the LEDs 132 and 134 of the LED module 530. It is disposed on the same side of the light mixing device 136. For example, the LED strip 132a of the LED strip group 132 and the LED strip 134a of the LED strip group 134 are disposed adjacent to the side 136a of the light mixing device 136. The light-emitting diode strips 132a and 134a are disposed in parallel with each other. For example, the LED strip 132b of the LED strip group 132 and the LED strip 134b of the LED strip group 134 are disposed adjacent to the side surface 136c of the light mixing device 136. The light-emitting diode strips 132b and 134b are disposed in parallel with each other.

The LED array of the LED module 530 of the present embodiment is arranged in a light-emitting diode module 130, but the function and effect of the LED module 530 are compared with that of the LED module. Group 130 is no different.

While the invention has been described above in terms of several embodiments, it is not intended to limit the scope of the invention, and the invention may be practiced in various embodiments without departing from the spirit and scope of the invention. The scope of protection of the present invention is defined by the scope of the appended claims.

100. . . Light-emitting diode lighting device

110. . . switch

120. . . driver

122. . . counter

124. . . Selection module

130. . . Light-emitting diode module

132. . . Diode light bar group

132a, 132b. . . Light-emitting diode strip

134. . . Diode light bar group

134a, 134b. . . Light-emitting diode strip

136. . . Light mixing device

136a, 136b. . . Side of the light mixing device

136c, 136d. . . Side of the light mixing device

300. . . Lighting device driving method

310. . . Switching step

320. . . Counting step

330. . . Selection step

340. . . Mixing step

530. . . Light-emitting diode module

LCDC. . . Light-emitting diode chip

The above and other objects, features, and advantages of the present invention will become more apparent and understood.

FIG. 1 is a functional block diagram of a light-emitting diode lighting device according to an embodiment of the invention.

FIG. 2 is a schematic structural view of a light emitting diode module according to an embodiment of the invention.

3 is a flow chart showing a driving method of a light-emitting diode lighting device according to an embodiment of the present invention.

4 is a schematic structural view of a switch according to an embodiment of the present invention.

FIG. 5 is a schematic structural view of a light emitting diode module according to another embodiment of the present invention.

100. . . Light-emitting diode lighting device

110. . . switch

120. . . driver

122. . . counter

124. . . Selection module

130. . . Light-emitting diode module

132. . . Diode light bar group

134. . . Diode light bar group

136. . . Light mixing device

Claims (10)

A light-emitting diode lighting device comprising: a switch for a user to perform a switching action; and a light-emitting diode module comprising: a light mixing device having a first side and a second side; a plurality of light emitting diode strips disposed adjacent to the first side and the second side of the light mixing device; and a driver electrically connected between the switch and the LED module to a switching action of the user to control the light emitting diode strips, wherein the driver comprises: a counter for recording the number of times the user switches the switch, and a selection module for using the counter according to the counter The number of switchings is recorded to selectively provide power to at least one of the light emitting diode strips to cause the at least one of the light emitting diode strips to illuminate. The illuminating diode illuminating device of claim 1, wherein the illuminating diode strips are divided into a plurality of illuminating diode strip groups, and the selecting module is based on the counter The number of switchings is recorded to selectively provide power to at least one of the group of light emitting diode strips to cause the at least one of the group of light emitting diode strips to illuminate. The illuminating diode lighting device of claim 2, wherein the first side is opposite to the second side. The illuminating diode illuminating device of claim 3, wherein each of the illuminating diode strips comprises at least two illuminating diode strips, the at least two illuminating strips Adjacent to the first side and the second side. The light-emitting diode lighting device of claim 4, wherein the light guide plate has a rectangular cross section and further has a third side surface and a fourth side surface, the third side surface being opposite to the fourth side surface . The light-emitting diode lighting device of claim 5, wherein the light-emitting diode light bar group comprises a first light-emitting diode light bar group and a second light-emitting diode light bar group The second light emitting diode strips of the first light emitting diode strip group are respectively disposed adjacent to the first side surface and the second side surface of the light guiding plate, and the second light emitting diode light The at least two light-emitting diode strips of the strip group are respectively disposed adjacent to the third side surface and the fourth side surface of the light guide plate. The light-emitting diode lighting device of claim 5, wherein the light-emitting diode light bar group comprises a first light-emitting diode light bar group and a second light-emitting diode light bar group The second light emitting diode strips of the first light emitting diode strip group are respectively disposed adjacent to the first side surface and the second side surface of the light guiding plate, and the second light emitting diode light The at least two light-emitting diode strips of the strip group are disposed in parallel adjacent to the at least two light-emitting diode strips of the first light-emitting diode strip group. The illuminating diode lighting device of claim 1, wherein the light mixing device is a light guide plate. The illuminating diode lighting device of claim 1, wherein the switch is a rocker switch. A driving method of a light-emitting diode lighting device, wherein the light-emitting diode lighting device comprises a plurality of light-emitting diode light bar groups, each of the light-emitting diode light bar groups comprising a plurality of light-emitting diodes The light bar, the driving method of the light emitting diode lighting device comprises: providing a switch, wherein the opening relationship is used for a user to perform a switching action; and using a counter to record the number of times the user switches the switching of the switch; The number of switchings recorded by the counter selectively provides power to at least one of the groups of light emitting diode strips; and utilizing a light mixing device to group the plurality of light emitting diode strips The light emitted by at least one of them is mixed.