Abstract: The present invention provides an electrical enclosure for an LED driver and grounding the electrical enclosure. The electrical enclosure includes a base plate having substantially planar bottom surface, with a plurality of mounting apertures on the base plate on a first and second ends of the base plate, wherein a center portion of the base plate between the first and second ends is opened allowing exposure to the surrounding ambient air. At least one of the first and second ends having first and second sections/tabs that are respectively punched out and folded to create openings in the base, wherein the second section's folded section/tab covers a portion of the opening created by the first section, and wherein the mounting apertures on the first and second ends of the electrical enclosure providing for securement of the electrical enclosure to a luminaire or other mounting surface, and said center portion for receiving the LED driver.

Abstract: An LED power supply, comprising: a power factor correction circuit configured to receive an input signal and provide a DC bus voltage across a DC bus; a converter configured to receive the DC bus voltage and to output a DC output voltage for powering at least one LED, wherein the converter comprises a high-side transistor, wherein the high-side transistor is OFF when the LED power supply is in standby; a voltage sensor being configured to output a voltage sensor output; and a controller configured to receive the voltage sensor output and to output a control signal according to the voltage sensor output, wherein the voltage sensor is positioned in series with the output of the high-side transistor, such that, when the high-side transistor is ON, the voltage sensor output is proportional to the DC bus voltage, and when the transistor is OFF, the voltage sensor is disconnected from the DC bus.

Abstract: A device, system, and method configure a power supply of a powered device. The powered device includes a digital addressable lighting interface (DALI) connected to a load to be powered by a power source. The powered device includes an isolator. The powered device includes a controller positioned on a primary side of the isolator. The controller is configured to generate a first signal to select whether to provide power to the 5 DALI at a zero current value or a maximum current value. The controller is further configured to generate a second signal to provide power to the DALI at a selected current value between the zero current value and the maximum current value.

Abstract: A device, system, and method protect circuits of a lighting device. The lighting device includes a current source generating a current and a first load and a second load receiving the current. The lighting device includes an inductor positioned between the current source and the first and second loads that balances the current powering the first and second loads. The lighting device includes a detector monitoring a voltage peak of the first 5 and second loads. The lighting device includes a voltage controller receiving a reading of the voltage peak from the detector and determining when the voltage peak is at least a voltage peak threshold. The voltage controller is configured to adjust a setting for the current generated by the current source based on the reading of the voltage peak.

Abstract: A secondary side controller configured to determine a peak voltage and/or a frequency of a secondary side winding of a power supply converter over a predetermined period of time, wherein, when the converter is in the burst mode, the secondary side controller is configured to instruct a primary side controller to increase the set point, such that the primary side controller operates in the standard mode to increase the converted output voltage, the secondary side controller determining the peak voltage and/or the frequency of the secondary side winding while the primary side controller is operating the converter in the standard mode.

Abstract: A device, system and method protects from overvoltages. A power control device includes a component (310) configured to be powered according to a duty cycle. The power control device includes a controller (330) configured to determine the duty cycle that places the component on or off. The power control device includes a comparator (335) configured to determine when the duty cycle is off and an overvoltage is being experienced by the component. When the duty cycle is off and the overvoltage is being experienced by the component, the comparator selects a circuit pathway (345, 350) including a clamping device (350).

Abstract: An isolated converter has a transformer with a primary winding (in a primary side circuit) and a secondary winding magnetically coupled to the primary winding. A first Y-capacitor is electrically connected between the primary side circuit and the secondary winding. The detection circuit is for detecting information at the primary side, preferably information about the input supply received at the input, and more preferably the information is that whether the input supply is an alternating current (AC) supply or a direct current (DC) supply, and the detection circuit includes the first Y-capacitor. The detection circuit enables the detected information to be provided directly to a secondary side controller, without needing opto-isolators or other isolated data transmission.

Abstract: An isolated converter has a transformer with a primary winding (in a primary side circuit) and a secondary winding magnetically coupled to the primary winding. A first Y-capacitor is electrically connected between the primary side circuit and the secondary winding. The detection circuit is for detecting information at the primary side, preferably information about the input supply received at the input, and more preferably the information is that whether the input supply is an alternating current (AC) supply or a direct current (DC) supply, and the detection circuit includes the first Y-capacitor. The detection circuit enables the detected information to be provided directly to a secondary side controller, without needing opto-isolators or other isolated data transmission.

Abstract: An LED power supply, comprising: a power factor correction circuit configured to receive an input signal and provide a DC bus voltage across a DC bus; a converter configured to receive the DC bus voltage and to output a DC output voltage for powering at least one LED, wherein the converter comprises a high-side transistor, wherein the high-side transistor is OFF when the LED power supply is in standby; a voltage sensor being configured to output a voltage sensor output; and a controller configured to receive the voltage sensor output and to output a control signal according to the voltage sensor output, wherein the voltage sensor is positioned in series with the output of the high-side transistor, such that, when the high-side transistor is ON, the voltage sensor output is proportional to the DC bus voltage, and when the transistor is OFF, the voltage sensor is disconnected from the DC bus.

Abstract: A device, system, and method configure a power supply of a powered device. The powered device includes a digital addressable lighting interface (DALI) connected to a load to be powered by a power source. The powered device includes an isolator. The powered device includes a controller positioned on a primary side of the isolator. The controller is configured to generate a first signal to select whether to provide power to the 5 DALI at a zero current value or a maximum current value. The controller is further configured to generate a second signal to provide power to the DALI at a selected current value between the zero current value and the maximum current value.

Abstract: A device, system, and method protect circuits of a lighting device. The lighting device includes a current source generating a current and a first load and a second load receiving the current. The lighting device includes an inductor positioned between the current source and the first and second loads that balances the current powering the first and second loads. The lighting device includes a detector monitoring a voltage peak of the first 5 and second loads. The lighting device includes a voltage controller receiving a reading of the voltage peak from the detector and determining when the voltage peak is at least a voltage peak threshold. The voltage controller is configured to adjust a setting for the current generated by the current source based on the reading of the voltage peak.

Abstract: A device, system and method protects from overvoltages. A power control device includes a component (310) configured to be powered according to a duty cycle. The power control device includes a controller (330) configured to determine the duty cycle that places the component on or off. The power control device includes a comparator (335) configured to determine when the duty cycle is off and an overvoltage is being experienced by the component. When the duty cycle is off and the overvoltage is being experienced by the component, the comparator selects a circuit pathway (345, 350) including a clamping device (350).

Abstract: A lighting driver (300, 400) for driving at least one lighting device (120) includes a control unit (310, 410) disposed on a first side of an electrical isolation barrier (320, 420), and a power supply unit (350, 450) disposed on a second side of the electrical isolation barrier so as to be electrically isolated from the control unit. The control unit supplies a single enable signal (302, 402) across the electrical isolation barrier to the power supply unit. The power supply unit includes a switching circuit (S1/S2) configured to selectively enable and disable, in response to the single enable signal, two output voltages for supplying power to an external device (130) which communicates data with the lighting driver.

Abstract: A lighting driver (300, 400) for driving at least one lighting device (120) includes a control unit (310, 410) disposed on a first side of an electrical isolation barrier (320, 420), and a power supply unit (350, 450) disposed on a second side of the electrical isolation barrier so as to be electrically isolated from the control unit. The control unit supplies a single enable signal (302, 402) across the electrical isolation barrier to the power supply unit. The power supply unit includes a switching circuit (S1/S2) configured to selectively enable and disable, in response to the single enable signal, two output voltages for supplying power to an external device (130) which communicates data with the lighting driver.

Abstract: A lighting driver (500) includes a controller (560) which controls the lighting driver to selectively operate in one of two different states, including a first state (850) wherein the output current is substantially constant regardless of the RMS value of an AC Mains in put voltage (15) applied across AC Mains connection terminals (502), and a second state (860) wherein the slope of the input impedance across the AC Mains connection terminals is maintained to be positive regardless of the AC Mains input voltage. The controller is configured to latch the lighting driver into the second state whenever the RMS value of the AC Mains voltage is less than a minimum RMS threshold voltage for a time period greater than a first threshold time period (TTHRESHOLD_1), or greater than a maximum RMS threshold voltage for a time period greater than a second threshold time period (TTHRESHOLD_2).

Abstract: A programmable lighting device includes a power stage, a controller, a nonvolatile memory and a near field communication device. The power stage is configured to receive power from an external supply and supplying power to at least one light source. The controller is configured to control operation of the power stage according to an operating parameter and/or configuration setting for the programmable lighting device. The nonvolatile memory device stores the operating parameter and/or configuration setting. The near field communication device receives a radio frequency signal which communicates the operating parameter and/or configuration setting, and in response thereto stores the operating parameter and/or configuration setting in the nonvolatile memory. The near field communication device generates a supply voltage for powering the nonvolatile memory device from the RF signal.

Abstract: A programmable lighting device includes a power stage, a controller, a nonvolatile memory and a near field communication device. The power stage is configured to receive power from an external supply and supplying power to at least one light source. The controller is configured to control operation of the power stage according to an operating parameter and/or configuration setting for the programmable lighting device. The nonvolatile memory device stores the operating parameter and/or configuration setting. The near field communication device receives a radio frequency signal which communicates the operating parameter and/or configuration setting, and in response thereto stores the operating parameter and/or configuration setting in the nonvolatile memory. The near field communication device generates a supply voltage for powering the nonvolatile memory device from the RF signal.

Abstract: A programmable lighting device includes a power stage, a controller, a nonvolatile memory and a near field communication device. The power stage is configured to receive power from an external supply and supplying power to at least one light source. The controller is configured to control operation of the power stage according to an operating parameter and/or configuration setting for the programmable lighting device. The nonvolatile memory device stores the operating parameter and/or configuration setting. The near field communication device receives a radio frequency signal which communicates the operating parameter and/or configuration setting, and in response thereto stores the operating parameter and/or configuration setting in the nonvolatile memory. The near field communication device generates a supply voltage for powering the nonvolatile memory device from the RF signal.

Abstract: A programmable lighting device includes a power stage, a controller, a nonvolatile memory and a near field communication device. The power stage is configured to receive power from an external supply and supplying power to at least one light source. The controller is configured to control operation of the power stage according to an operating parameter and/or configuration setting for the programmable lighting device. The nonvolatile memory device stores the operating parameter and/or configuration setting. The near field communication device receives a radio frequency signal which communicates the operating parameter and/or configuration setting, and in response thereto stores the operating parameter and/or configuration setting in the nonvolatile memory. The near field communication device generates a supply voltage for powering the nonvolatile memory device from the RF signal.

Abstract: Drivers for driving light circuits with light emitting diodes include an isolation circuit with a primary part and a secondary part and a guiding circuit for guiding common mode surge signals to a reference potential. The isolation circuit may be configured to guide a first part of the common mode surge signal away from the light circuit, and the guiding circuit may be configured to guide a second part of the common mode surge signal away from the light circuit, the second part being smaller than the first part. The guiding circuit may include one or more capacitors for connecting one or more terminals of the secondary part to the reference potential, where the value(s) of the one or more capacitors is/are larger than values of a parasitic capacitance of the isolation circuit.