Series power supply circuit and method, and computing device

Abstract

The embodiment of the invention discloses a series power supply circuit and method, and a computing device. The circuit is used to perform series power supply for N units to be supplied with power, each unit to be supplied with power comprises a first power supply voltage input end, a second power supply voltage input end and a grounding end, the first power supply voltage input ends supply firstpower supply voltages to the units to be supplied with power, and supply second power supply voltages for the same-level units to be supplied with power through N power supply units connected with thefirst power supply voltage input ends of the same-level units to be supplied with power. According to the embodiment of the invention, the power supply conversion efficiency is obviously improved, the whole power supply current of the circuit is reduced, and the material cost of the device is saved.

Description

technical field [0001] The invention relates to power supply technology for integrated circuit chips, in particular to a series power supply circuit, method and computing equipment. Background technique [0002] With the continuous and rapid development of cloud computing and server-level large-scale computing, as well as the global awareness of environmental protection and energy conservation, energy efficiency has become a very important indicator in the hardware computing system. [0003] At present, computing equipment based on large-scale integrated circuits adopts the traditional parallel power supply architecture, which has obvious disadvantages such as excessive current and low energy efficiency, and increases the requirements for chip circuit design and the cost of production design. With the development of semiconductor technology, the working power supply voltage of the chip is getting lower and lower, and the working current is getting bigger and bigger. In order...

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Problems solved by technology

[0004] However, in computers, servers, graphics cards or other integrated computing arrays, there are still some difficulties in using this series power supply architecture under the CPU / GPU-based computing architecture

Under the existing computing architecture, there are two main voltage sources with different voltages, such as VDD and VDDQ. power supply paths in series

This is because there is a fixed voltage difference between VDD and VDDQ. If the two voltages can be coordinated at a certain level, it means that the voltages of the upper or lower level of this level will definitely not be able to match exactly to the given level. chip power supply

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