Housing surface temperature estimation method and electronic device

摘要

PROBLEM TO BE SOLVED: To precisely calculate temperature of housing surface.SOLUTION: A processor 5 disposed on a board 3 of an electronic apparatus 1 acquires a first estimation value from a temperature sensor 4 disposed on the board 3. The processor 5 calculates surface temperature on the surface of a housing 2 based on a transfer function G(s) based on a first thermal resistance and a first thermal capacity between the heat source on the board 3 and the surface of the housing 2 of the electronic apparatus 1, a transfer function H(s) based on a second thermal resistance and a second thermal capacity between a heat source and a temperature sensor 4 and a first estimation value.SELECTED DRAWING: Figure 1