Designer19 × 0 designs 10 groups Member of the PartQuest Explore Development Team. Focused on modeling and simulation of analog, mixed-signal and multi-discipline systems covering a broad range of applications, including power electronics, controls and mechatronic systems. https://explore.partquest.com/node/403635 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/403635"></iframe> Title Description <p>This LED spotlight example demonstrates the value of simulating both the electrical and thermal aspects of power dissipating circuits together, simultaneously. In this design, a Vishay NTCLE100 Thermistor is used in a detection circuit to monitor the enclosure temperature. It is used for thermal shut-down protection, to keep the enclosure temperature well below the "Tg" (glass transition temperature) of the spotlight's Nylon 6 polymer lens. This is particularly helpful when operating at higher external ambient temperatures.</p><p>The thermal side of the circuit consists of connected BCI-ROMs generated by Simcenter Flotherm in the IEEE Standard VHDL-AMS format. Thermal BCI-ROMs for the linear regulator, three LEDs, and the current sense resistor are connected to electrical models of these devices. The thermal environment is represented by a BCI-ROM of the rest of the system: PCB, lamp casing, and the thermistor.</p><p>The ability to include an accurate model of the thermal environment is key to having "thermally-aware" circuit functional design and board layout processes.</p> About text formats Tags Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
