| 发明名称 | Semiconductor device and control method | ||
| 摘要 | A semiconductor device includes: a circuit configured to operate according to a clock; a temperature sensor configured to detect a temperature of the circuit; and a controller configured to control a frequency of the clock based on a temporal difference of power consumption of the circuit when the temperature detected by the temperature sensor exceeds a predetermined value. | ||
| 申请公布号 | US9590639(B2) | 申请公布日期 | 2017.03.07 |
| 申请号 | US201414573813 | 申请日期 | 2014.12.17 |
| 申请人 | FUJITSU LIMITED | 发明人 | Kawabe Yukihito;Hara Michiharu |
| 分类号 | H03B19/00;H03L7/00;G05F1/46;G06F1/20;H03L1/00;H03L1/02;H03L7/06 | 主分类号 | H03B19/00 |
| 代理机构 | Staas & Halsey LLP | 代理人 | Staas & Halsey LLP |
| 主权项 | 1. A semiconductor device comprising: a circuit configured to operate according to a clock; a temperature sensor configured to detect a temperature of the circuit; and a controller configured to control a frequency of the clock based on a temporal difference of power consumption of the circuit when the temperature detected by the temperature sensor exceeds a predetermined value,calculate an exponential moving average of power from acquired power values based on a variation of the power value up to this time and an elapsed time until this time, andcontrol the frequency of the clock based on a temporal difference of the exponential moving average. | ||
| 地址 | Kawasaki JP | ||