SYSTEM AND METHOD FOR POWERING AND CONTROLLING A SOLID STATE LIGHTING UNIT
The present disclosure provides a lighting system. In one example, the lighting system includes a circuit board including a plurality of light emitting groups, an integrated circuit electrically coupled to the light emitting groups, a rectifier circuit electrically coupled to the integrated circuit and configured to generate a rectified sine waveform of a power source, and a dimmer circuit electrically coupled to the integrated circuit and configured to transmit a dimming signal to the integrated circuit. In one case, the integrated circuit is configured to modify a power current of the light emitting groups to globally control an emission intensity of all of the light emitting groups uniformly in accordance with the dimming signal.
1 . A lighting system, comprising:
a circuit board including a plurality of light emitting groups;
an integrated circuit electrically coupled to the light emitting groups;
a rectifier circuit electrically coupled to the integrated circuit and configured to generate a rectified waveform of a power source; and
a dimmer circuit electrically coupled to the integrated circuit and configured to transmit a dimming signal to the integrated circuit;
wherein the integrated circuit is configured to modify the rectified waveform into a truncated rectified waveform in accordance with the dimming signal; and
wherein the integrated circuit is configured to selectively turn on or off a number of the light emitting groups in accordance with the truncated rectified waveform.
2 . The system of claim 1 , wherein the dimmer circuit comprises:
a user interface configured to receive a dimming input and generate an interface output; and
a transducer configured to receive the interface output and generate the dimming signal.
3 . The system of claim 2 , wherein the transducer is configured to generate the dimming signal in accordance with a dimming style which determines a relationship between the dimming input and the dimming signal, and wherein the relationship is linear.
4 . The system of claim 2 , wherein the transducer is configured to generate the dimming signal in accordance with a dimming style which determines a relationship between the dimming input and the dimming signal, and wherein the relationship is non-linear.
5 . The system of claim 4 , wherein the dimming style is one of a logarithmic profile and an exponential profile.
6 . The system of claim 1 , wherein each of the light emitting groups includes at least one light emitting diode.
7 . The system of claim 1 , wherein one of the light emitting groups includes an equal number of light emitting diodes as another one of the light emitting groups.
8 . The system of claim 1 , wherein the dimming signal comprises at least one of a DMX signal, a digital addressable lighting interface (DALI) signal, a power-line communication signal, a global dimming signal having a voltage between 0-10 volts, a Bluetooth signal, a Bluetooth Low Energy signal, a WIFI signal, a Zigbee signal, and a visible light signal.
9 . The system of claim 1 , wherein the dimmer circuit is electrically coupled to the integrated circuit through at least one circuit protector.
10 . The system of claim 9 , wherein the at least one circuit protector comprises at least one of a capacitor, a Zener diode, an opto-isolator, and a combination thereof.
11 . The system of claim 1 , wherein the integrated circuit is configured to sequentially turn on the light emitting groups in a first quarter wave cycle of the rectified waveform and to sequentially turn off the light emitting groups in a second quarter wave cycle of the rectified waveform following the first quarter wave cycle.
12 . The system of claim 1 , wherein each of the light emitting groups comprises at least one white color light emitting diode.
13 . The system of claim 1 , wherein the light emitting groups comprise at least one light emitting diode of a first color and at least one light emitting diode of a second color different from the first color.
14 . The system of claim 13 , wherein the first color is White and the second color is red.
15 . The system of claim 1 , wherein the light emitting groups comprise at least one light emitting diode of a first color, at least one light emitting diode of a second color different from the first color, and at least one light emitting diode of a third color different from the first color and the second color.
16 . The system of claim 15 , wherein the first color is white, the second color is red, and the third color is blue.
17 . A lighting system, comprising:
a circuit board including a plurality of light emitting groups;
an integrated circuit electrically coupled to the light emitting groups;
a rectifier circuit electrically coupled to the integrated circuit and configured to generate a rectified waveform of a power source; and
a dimmer circuit electrically coupled to the integrated circuit and configured to transmit a dimming signal to the integrated circuit;
wherein the integrated circuit is configured to modify a power current of the light emitting groups to globally control an emission intensity of all of the light emitting groups uniformly in accordance with the dimming signal.
18 . The system of claim 17 , wherein the dimmer circuit comprises:
a user interface configured to receive a dimming input and generate an interface output; and
a transducer configured to receive the interface output and generate the dimming signal.
19 . The system of claim 18 , wherein the transducer is configured to generate the dimming signal in accordance with a dimming style which determines a relationship between the dimming input and the dimming signal, and wherein the relationship is linear.
20 . The system of claim 18 , wherein the transducer is configured to generate the dimming signal in accordance with a dimming style which determines a relationship between the dimming input and the dimming signal, and wherein the relationship is non-linear.
21 . The system of claim 20 , wherein the dimming style is one of a logarithmic profile and an exponential profile.
22 . The system of claim 17 , wherein each of the light emitting groups includes at least one light emitting diode.
23 . The system of claim 17 , wherein one of the light emitting groups includes an equal number of light emitting diodes as another one of the light emitting groups.
24 . The system of claim 17 , wherein the dimming signal comprises at least one of a DMX signal, a digital addressable lighting interface (DALI) signal, a power-line communication signal, a global dimming signal having a voltage between 0-10 volts, a Bluetooth signal, a Bluetooth Low Energy signal, a WIFI signal, a Zigbee signal, and a visible light signal.
25 . The system of claim 17 , wherein the dimmer circuit is electrically coupled to the integrated circuit through at least one circuit protector.
26 . The system of claim 25 , wherein the at least one circuit protector comprises at least one of a capacitor, a Zener diode, an opto-isolator, and a combination thereof.
27 . The system of claim 17 , wherein the integrated circuit is configured to sequentially turn on the light emitting groups in a first quarter wave cycle of the rectified waveform and to sequentially turn off the light emitting groups in a second quarter wave cycle of the rectified waveform following the first quarter wave cycle.
28 . The system of claim 17 , wherein each of the light emitting groups comprises at least one white color light emitting diode.
29 . The system of claim 17 , wherein the light emitting groups comprise at least one light emitting diode of a first color and at least one light emitting diode of a second color different from the first color.
30 . The system of claim 29 , wherein the first color is white and the second color is red.
31 . The system of claim 17 , wherein the light emitting groups comprise at least one light emitting diode of a first color, at least one light emitting diode of a second color different from the first color, and at least one light emitting diode of a third color different from the first color and the second color.
32 . The system of claim 31 , wherein the first color is white, the second color is red, and the third color is blue.