Power control method and device

Abstract

The invention provides a power control method and device. The method comprises the steps of: acquiring an actual measurement temperature of a controlled target; comparing the actual measurement temperature and a rated temperature, and, in response to the increase of the actual measurement temperature from a value lower than the rated temperature to a value higher than the rated temperature or thereduction of the actual measurement temperature from a value higher than the rated temperature to a value lower than the rated temperature, resetting an accumulative temperature error value acquired by accumulating temperature error values, wherein the temperature error values are the difference values between the rated temperature and the actual measurement temperature; based on the temperature error values and the accumulative temperature error value at the current moment, determining the input power upper limit value of the controlled target; controlling power provided for the controlled target based on the input power upper limit value. According to the technical solution, the temperature of a controlled target can be stabilized around a rated temperature faster, so that the performance of the controlled target can be maximized while the controlled target is protected.

Description

technical field [0001] The invention relates to the field of electronic control, in particular to a power control method and device. Background technique [0002] With the development of mobile phone terminal technology, people have higher and higher requirements for the performance of mobile phones. How to effectively balance the performance, power consumption and heat generation of electronic devices inside mobile phones has become a key issue for major chip manufacturers and mobile phone manufacturers. [0003] At present, in some temperature control schemes, the classic closed-loop PI control scheme is adopted, which is prone to obvious hysteresis in temperature control, resulting in the problem of insufficient or excessive energy obtained by electronic devices. Specifically, when the temperature of the electronic device is lower than the rated temperature, due to the inertial influence of the accumulated error, the allocated power or energy is lower than the actual powe...

AI Technical Summary

Problems solved by technology

[0003] At present, in some temperature control schemes, the classic closed-loop PI control scheme is adopted, which is prone to obvious hysteresis of temperature control, resulting in the problem of insufficient or excessive energy obtained by electronic devices

Specifically, when the temperature of the electronic device is lower than the rated temperature, due to the inertial influence of the accumulated error, the allocated power or energy is lower than the actual power consumption or energy that can be obtained, resulting in the performance of the controlled object being inhibited and unable to be timely and When the temperature of the electronic device exceeds the rated control temperature, due to the inertial effect of the accumulated error, the distributed power or energy may be too much, causing the temperature of the controlled object to exceed the limit temperature, resulting in the The controlled object is damaged due to overheating

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