HIGH FREQUENCY MULTl-VOLTAGE AND MULTl-BRIGHTNESS LED LIGHTING DEVICES AND SYSTEMS AND METHODS OF USING SAME
First Claim
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1. A lighting system powered by an AC voltage source, the lighting system comprising:
- a high-frequency AC driver configured to receive at least two different AC forward voltages and having an AC voltage input and an AC voltage output, the AC voltage input being one of the at least two different AC forward voltages, the AC voltage output being a relatively constant frequency, wherein the relatively constant frequency is substantially higher than a frequency of an input voltage;
a bridge rectifier connected to an output of the high-frequency AC driver that provides a rectified AC voltage output;
a semiconductor device connected to the bridge rectifier that regulates voltage and current of the rectified AC voltage output;
at least two LED circuits each of which has at least two LEDs connected in series, electrically connected to an output of the semiconductor device; and
the at least two LED circuits connected to the AC voltage output of the high-frequency AC driver in either a series relationship or a parallel relationship.
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Abstract
A system and method transforming AC voltage to a high-frequency AC voltage and providing the high-frequency AC voltage to an AC LED circuit or rectifying the high-frequency circuit to a DC voltage and providing the DC voltage to a DC LED circuit.
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Citations
16 Claims
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1. A lighting system powered by an AC voltage source, the lighting system comprising:
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a high-frequency AC driver configured to receive at least two different AC forward voltages and having an AC voltage input and an AC voltage output, the AC voltage input being one of the at least two different AC forward voltages, the AC voltage output being a relatively constant frequency, wherein the relatively constant frequency is substantially higher than a frequency of an input voltage; a bridge rectifier connected to an output of the high-frequency AC driver that provides a rectified AC voltage output; a semiconductor device connected to the bridge rectifier that regulates voltage and current of the rectified AC voltage output; at least two LED circuits each of which has at least two LEDs connected in series, electrically connected to an output of the semiconductor device; and the at least two LED circuits connected to the AC voltage output of the high-frequency AC driver in either a series relationship or a parallel relationship. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of providing light, the method comprising:
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receiving an AC voltage input at a first frequency at a driver, the driver being configured to receive at least two different AC forward voltages with the AC voltage input being one of the at least two different AC forward voltages; transforming the AC voltage input at the first frequency to a voltage output using the driver, wherein a voltage of the voltage output is relatively constant when the driver is connected to at least two LED circuits and remains relatively constant regardless of whether an LED circuit is added to or subtracted from an output of the driver; and supplying the voltage output to the at least two LED circuits. - View Dependent Claims (9, 10, 11, 12)
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13. A method of providing light, the method comprising:
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receiving an AC voltage input at a first frequency at a driver, wherein the driver is configured to receive at least two different AC forward voltages with the AC voltage input being one of the at least two different AC forward voltages; supplying a voltage output from an output of the driver to the at least two LED circuits; receiving data at the driver using an antenna; and after receiving the data, controlling at least two LED circuits in response to the data. - View Dependent Claims (14, 15, 16)
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Specification