Computer system and power source control device

Abstract

The invention discloses a computer system and a power source control device. The power source control device comprises a temperature sensor, a first voltage converter, a reset unit, a diode and a second voltage converter, wherein the temperature sensor is used for sensing measurement temperature and outputting a sensing signal according to the measurement temperature; the first voltage converter is used for converting a power source voltage of the computer system into first voltage; and the reset unit operates under the first voltage and switches an electric potential of a reset signal generated by the output end according to the electric potential of the power source voltage of the computer system. Besides, the diode is used for determining whether the reset signal is switched to a second electric potential according to the sensing signal; and second voltage is used for generating a starting signal according to the reset signal with the first electric potential to enable an embedded controller in the computer system.

Description

technical field [0001] The present invention relates to a computer system and its power control device, and in particular to a computer system with an over-temperature protection mechanism and its power control device. Background technique [0002] figure 1 It is a partial schematic diagram of an existing computer system. refer to figure 1 , the existing computer system 100 includes a temperature sensor 110, an embedded controller 120, resistors R11 and R12, a capacitor C1 and a diode Z1. Under normal conditions in the existing computer system 100 , the temperature sensor 110 does not generate the sensing signal STH1 with a low logic level. At this time, the voltage V1 will pass through the conduction path of the resistor R12 and the capacitor C1, so that the embedded controller 120 works normally. [0003] On the contrary, when the CPU or a working element inside the existing computer system 100 is overheated, the temperature sensor 110 will generate a sensing signal ST...

AI Technical Summary

Problems solved by technology

However, there are two problems in this approach: one is that after the existing computer system 100 is shut down because the sensing signal STH1 is a low logic potential, if the user wants to restart the system and press the start key of the system, the temperature will not be measured. Before falling below 85 degrees, the temperature sensor 110 will still generate a sensing signal STH1 with a low logic potential to force the existing computer system 100 to shut down

[0006] In other words, the above two problems will cause the computer system to be forced to shut down after being turned on once, which will cause users to mistakenly think that the computer is damaged, or repeatedly Shorten the life of the computer by turning it on

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