Microsoft patent reveals advanced solution to reduce heating on Surface

Surface Laptop concept

Computing devices may produce excess heat during certain
operations such as heavy gaming and video editing. The excess
heat could also cause performance and reliability issues on a
computing device, but it looks like Microsoft has an idea in
mind to overcome these challenges.

Spotted by us, a patent titled ‘ADVANCED POWER BASED THERMAL
CONTROL SYSTEMS’ was filed by Microsoft in October 2018 and
published by
WIPO on May 9, 2019. In this patent, an advanced thermal
management system to reduce heating issues has been described.

The thermal control system is for any computing devices,
including video game console, a personal computing device, a
laptop computing device, and a tablet computing device.

Microsoft says the patented technology includes a controller
that has been configured to obtain the first measure of a power
load. It will also apply a filter to obtain a first filtered
power load value and set a first thermal setpoint based at
least on the first filtered power load value.

Microsoft thermal patent
Image Courtesy: Microsoft / WIPO

After determining a first temperature of the device, and
adjusting a response of the cooling mechanism, the controller
will obtain a second measure of the power load at a different

“The method comprising determining a measure of a power load of
the device, determining an adjustment to make to a cooling
mechanism control variable by computationally combining at
least a setpoint-dependent term that is based on a comparison
of a thermal setpoint to a current temperature and a
setpoint-independent term that is based on the measure of the
power load of the device, and adjusting the response of the
cooling mechanism based on the adjustment determined,”
Microsoft explains.

The controller may use temperature data obtained from the
thermal sensors to regulate the cooling mechanism to help
prevent components of device from overheating.

The patent application is fairly new as it was filed in the
second half of 2018, but the publication of a patent does not
confirm new hardware.

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