A kind of power supply circuit and circuit power supply system
A technology of power supply circuit and circuit generation, which is applied in the field of microelectronics, can solve problems such as inability to provide flexible power supply, and achieve the effects of flexible power supply, power consumption optimization, and dynamic power consumption
Active Publication Date: 2018-07-24
NANJING ZGMICRO CO LTD
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[0005] The embodiment of the present application provides a power supply circuit and a circuit power supply system to solve the problem in the prior art that it is impossible to flexibly supply power to the working areas of different operating states in large-scale integrated circuits, and at the same time meet the problem of power consumption optimization
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[0028] In order to make the technical solutions and advantages in the embodiments of the present application clearer, the exemplary embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the present application, and Not an exhaustive list of all embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0029] The core idea of the present invention is to split the power supply circuit into a plurality of reference voltage generating circuits and driving circuits, and split the large-scale integrated circuit into N small areas (or called sub-areas), each of which is placed with a The reference voltage generation circuit uses each reference voltage generation circuit to sense the characteristics of each small area...
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The embodiment of the invention provides a power supply circuit and a circuit power supply system. The system comprises a plurality of reference voltage generating circuits and a driving circuit, wherein the reference voltage generating circuits are arranged in a plurality of sub-regions of a powered circuit correspondingly and are used for generating a plurality of reference voltage signals corresponding to the sub-regions of the powered circuit; and the driving circuit is used for outputting voltage for supply electricity for powered regions on the basis of the maximal voltage signal in the reference voltage signals. According to the technical scheme of the invention, electricity can be flexibly supplied to working regions with different operating states in a large-scale integrated circuit, and power consumption is subjected to dynamic optimization.
Description
technical field [0001] The present application relates to microelectronic technology, in particular, to a power supply circuit and a circuit power supply system. Background technique [0002] With the increase of circuit scale, the power supply problem for large-scale integrated circuits has become a topic of concern. In the prior art, a fixed output voltage is usually used to supply power to large-scale integrated circuits, so that the variation of the output voltage with temperature and chip manufacturing process fluctuations can be minimized. [0003] However, with the development of technology, for example, the functions of large-scale integrated circuits such as application processors increase, and the chip area occupied by them is also increasing. In actual work, due to the different functions of different parts, their power consumption currents are also different. The part with frequent work and high computing speed will generate more heat, resulting in a higher loca...
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IPC IPC(8): G05F5/00
CPCG05F5/00
Inventor 王钊
Owner NANJING ZGMICRO CO LTD