Abstract: A minimum IC operating voltage searching method includes acquiring a corner type of an IC, acquiring ring oscillator data of the IC, generating a first prediction voltage according to the corner type and the ring oscillator data by using a training model, generating a second prediction voltage according to the ring oscillator data by using a non-linear regression approach under an N-ordered polynomial, and generating a predicted minimum IC operating voltage according to the first prediction voltage and the second prediction voltage. N is a positive integer.

Abstract: An electronic system (300) comprising: a battery (303); at least one electronic device; and a power managing unit (301), arranged for detecting a battery voltage of the battery (303), and arranged for limiting at least one performance of the at least one electronic device if the battery voltage is not higher than a first low threshold voltage.

Abstract: A method of dynamic random access memory (DRAM) resource control for a DRAM manager of an electronic device is disclosed. The method comprises receiving at least one respective request message from at least one DARM user of the electronic device, each request message indicating required power information requested by the DRAM user sending the request message, and determining the DRAM to operate in one of a plurality of predetermined DRAM resource statuses respectively corresponding to a plurality of power levels according to the required power information respectively indicated by the at least one request message.

Abstract: An electronic system (300) comprising: a battery (303); at least one electronic device; and a power managing unit (301), arranged for detecting a battery voltage of the battery (303), and arranged for limiting at least one performance of the at least one electronic device if the battery voltage is not higher than a first low threshold voltage.