Abstract: A negative feedback closed loop circuit composed of an operational amplifier, a main switch, and a current sense resistor is applied to limit the current to a pre-defined threshold whenever there is an overload or short circuit condition is the circuit. A timing circuit composed of resistors and a capacitor is used to provide timing of turning off the circuit. The timing circuit is always charged from the same voltage and started from the same moment of main switching entering into current limit mode. The voltage reference is set by a voltage divider. The timing capacitor voltage and the voltage reference is compared in a comparator. Since both the amplifier circuit and the comparator circuit are temperature independent, the current limiting point and the time delay to turn off the switch are also both independent of temperature.

Abstract: Embodiments of the disclosed technology are directed to a light fixture and a method of assembly thereof. The light fixture is generally formed of two opposing side rails joined to two opposing caps. The fixture has two panels: an upper panel and a lower panel. The upper panel is formed of a generally flat, deflectable elongated section having a plurality of lights disposed on or in a surface thereof. The upper panel is deflected to form a substantially curvilinear panel, the edges of which are engaged into a slot on the side rails and/or the end caps. The lower panel is also generally flat and formed of a transparent or translucent material. The lower panel is disposed below the upper panel, such that the light projected from the lights on the upper panel projects through the lower panel.