Abstract: An illumination device and methods are provided herein for avoiding over-current and over-power conditions in one or more power converters included within the illumination device. The illumination device may include at least a plurality of light emitting diode (LED) chains, a driver circuit, at least one power converter, and a control circuit. In some embodiments, the control circuit may be generally configured for determining a maximum safe current level and/or a maximum safe power level attributed to the power converter(s) at a present operating temperature, and for adjusting respective drive currents supplied to the plurality of LED chains by the driver circuit, so as not to exceed the maximum safe current level or the maximum safe power level at the present operating temperature. In some embodiments, a temperature sensor may be included within the illumination device for measuring the operating temperature presently associated with the power converter(s).

Abstract: An illumination device and methods are provided herein for avoiding over-current and over-power conditions in one or more power converters included within the illumination device. The illumination device may generally include a plurality of light emitting diode (LED) chains, a driver circuit, at least one power converter, and a control circuit. The LED chains may produce illumination for the illumination device at a chromaticity consistent with a chromaticity setting. The power converter(s) may be coupled for powering the LED chains, and may each comprise a maximum safe current level or a maximum safe power level, which varies with temperature. The control circuit may be configured for determining a maximum lumens value that can be safely produced by all LED chains at a predetermined safe temperature to achieve the chromaticity setting without exceeding the maximum safe current level or the maximum safe power level of the power converter(s) at the predetermined safe temperature.

Abstract: An illumination device and methods are provided herein for avoiding over-current and over-power conditions in one or more power converters included within the illumination device. The illumination device may generally include a plurality of light emitting diode (LED) chains, a driver circuit, at least one power converter, a temperature sensor and a control circuit. The LED chains may produce illumination for the illumination device at a chromaticity consistent with a chromaticity setting. The power converter(s) may be coupled for powering the LED chains, and may each comprise a maximum safe current level or a maximum safe power level, which varies with temperature. The temperature sensor may be coupled for measuring a present temperature associated with the power converters.

Abstract: An illumination device and methods are provided herein for avoiding over-current and over-power conditions in one or more power converters included within the illumination device. The illumination device may include at least a plurality of light emitting diode (LED) chains, a driver circuit, at least one power converter, and a control circuit. In some embodiments, the control circuit may be generally configured for determining a maximum safe current level and/or a maximum safe power level attributed to the power converter(s) at a present operating temperature, and for adjusting respective drive currents supplied to the plurality of LED chains by the driver circuit, so as not to exceed the maximum safe current level or the maximum safe power level at the present operating temperature. In some embodiments, a temperature sensor may be included within the illumination device for measuring the operating temperature presently associated with the power converter(s).