Patent ID: 9715272
Date: 2017-07-25
CPC Classifications: G01R,G06F,Y02D

Claim:
1. A portable electronic device, comprising: a power management unit configured to simultaneously provide a first voltage and a second voltage; a multi-core cluster, comprising: a first processing core configured to be powered by the first voltage and operate at a first operating frequency; and a second processing core configured to be powered by the first voltage or the second voltage and operate at a second operating frequency; a third processing core configured to be powered by the second voltage and operate at a third operating frequency; a first switch coupled between the power management unit and the third processing core for receiving the second voltage and configured to selectively provide the second voltage to the third processing core or stop providing the second voltage to the third processing core according to a first control signal; and a second switch coupled between the power management unit and the second processing core, wherein the second switch is selectively switched to receive one of the first voltage and the second voltage according to a second control signal, so as to provide the one of the first voltage and the second voltage to the second processing core.