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The presented model is elaborated only for the power supply of LED lamps, in which the constant output voltage is stabilized. This model has the form of a subcircuit for SPICE, and it describes the influence of load resistance, amplitude of the input voltage, and the ambient temperature on ...
Installing the Raspberry Pi WS2801 RGB LED Library To control the LED strip we use a Python library fromAdafruit. This special Raspberry Pi WS2801 library includes some functions for controlling the individual LEDs. The good thing is that each LED can be addressed individually and anyRGB coloris ...
SUMMARY In this paper an electrothermal model of the power LED dedicated for SPICE is proposed. In this model electrical, thermal and optical properties of the considered device are taken into account. The description of the model and some results of the experimental verification of this model ...
An experimentally validated LTspice model predicts major advantages for the power output of the matrix layout under partial shading. Diagonal as well as random shading of a 1.6鈥恗 2 solar module is examined. Power gains of up to 73.8 % for diagonal shading and up to 96.5 % for random ...
There are different approaches to the system-level model. One option is to generate a compact thermal model of the LED module or LED luminaire. Poppe et al. [17] describe a method to create thermal network compact models for luminaires, which have subsequently been used in Spice-like ...