Patent ID: 8398304
Filing Date: 2013-03-19
Classification: G01K,G06F,Y02D

Abstract:
1. A device comprising: a current source circuit having an output to separately provide a first current and a second current; a first thermal detection device disposed at a first location of the device, the first thermal detection device coupleable to the output of the current source circuit; a voltage detection circuit comprising an input coupleable to the first thermal detection device and an output to provide: a first indicator of a first voltage representative of a voltage at the first thermal detection device in response to the second current; and a second indicator of a second voltage representative of a voltage difference between the voltage at the first thermal detection device in response to the second current and a voltage at the first thermal detection device in response to the first current; and a temperature detection circuit having an input coupled to the output of the voltage detection circuit and an output to provide a first over-temperature indicator based on the first indicator and the second indicator.