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This paper deals with the analysis and implementation of a low cost calorimetric setup, suitable for loss measurements in power electronic converters, for power ratings up to 30W. Main component of the device is an open Dewar vessel. A proper calibration method is suggested and the several error factors are spotted, so as to achieve an overall accuracy of 2%. Application examples are demonstrated...
A simple thermal (heat loss) sensor system was designed in a small plastic tube housing using a negative thermal coefficient (NTC) thick-film thermistor as a self-heating sensor. The voltage power supply [range constant voltage (RCV)-range constant voltage] uses the measured input water temperature to select the applied voltage in steps (up and down) in order to enable operation of the sensor at optimal...
We describe the design and implementation of an automated calibration system for the thermocouple/voltage modules from an automotive data-acquisition system. The automated calibration system tests and calibrates sixteen thermocouple/voltage signal-conditioning cards, with a combined total of 320 data channels, over the data-acquisition systempsilas operating range from -40degF through +160degF. The...
In deep submicron era, to prevent larger amount of SRAM from more frequently encountered overheating problems and react accordingly for each possible hotspots, multiple ideal run-time temperature sensors must be closely located and response rapidly to secure system reliability while maintaining core frequency. This paper presented a method to extract run-time temperature information from multiple...
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