eldoLED® Temperature Sensor Analysis

eldoLED, a privately-owned company, has its headquarters in Eindhoven, Netherlands. The company has branch offices in San Jose, California, and in Toronto, Canada. eldoLED develops and produces high-performance electronic drivers, as well as networking and control solutions for high-intensity solid-state lighting applications. Standard eldoLED products include: LedSync, DMX, and DALI compatible drivers and controllers, RF bridge interface cards and DMX dimmers. The eldoLAB prototype development team, located at the Toronto branch, designs and fabricates prototype products by reviewing internal specifications, developing circuit board layouts and fabricating physical prototypes [1]. 

Since the operating temperature of eldoLED products have to be monitored to ensure optimum performance, current eldoLED products include dedicated electrical temperature sensing components. These additional components increase both production costs and the size of each unit. Therefore, the eldoLAB team investigated an alternative temperature measurement method using components already available in any eldoLED product circuit board, as shown in Figure 1. 

Jonathan Warren, a co-op student from the University of Waterloo, was assigned to investigate the efficiency of identified temperature sensor technologies.