Thermal simulation device and method

Abstract

The invention relates to a thermal simulation device and method, and belongs to the technical field of simulation. The device comprises an electronic system and control equipment. The electronic system comprises a plurality of power control devices. Each power control device is used for simulating a corresponding heat generation device, each power control device comprises a power supply, a thermalresistor and a switch control unit, wherein the power supply, the thermal resistor and the switch control unit are electrically connected to form a loop; and the control equipment is used for generating a plurality of different PWM signals and transmitting the plurality of different PWM signals to the switch control unit, an effective voltage at the two ends of the thermal resistor being changedby changing a duty ratio of the PWM signals. The power consumption of different devices in the electronic system can be effectively simulated, so that the temperature field change in the electronic system is accurately expressed, the thermal design efficiency of the complex electronic system is improved, and the temperature field in the actual electronic system is prevented from exceeding the working temperature range of normal devices.

Description

technical field [0001] The invention relates to the technical field of simulation, in particular to a thermal simulation device and method. Background technique [0002] As the number and integration of electronic systems become higher and higher, electronic systems become more and more complex, and the heating of equipment in complex electronic systems has become a key point that cannot be ignored. For example, high temperature will not only lead to unstable operation of the electronic system, shorten the service life, and may even burn some components. The heat that causes high temperature does not come from outside the electronic system, but from inside the electronic system, or inside the integrated circuit. Therefore, before designing the electronic system, the thermal simulation of the electronic system has guiding significance for the designer to consider whether it is necessary to install a cooling device when designing the electronic system. [0003] Generally, th...

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Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a thermal simulation device and method to solve the problem that the current software simulation of complex electronic systems is difficult to give the exact boundary conditions of the simulation model, resulting in a large influence of the mesh size on the simulation results , and the software thermal simulation results are difficult to accurately express the actual electronic system temperature field changes

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