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Power supply circuit across voltage domain and printed circuit board

A technology for printed circuit boards and power supply circuits, applied in the direction of electrical components, output power conversion devices, etc., can solve the problems of many PCB traces and increase PCB cost, and achieve the effect of reducing PCB cost and quantity

Pending Publication Date: 2022-03-18
BEIJING BITMAIN TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the number of voltage domain stages is particularly large, the number of lines for voltage input across the voltage domain is large, occupying more PCB traces, and increasing the cost of the PCB.

Method used

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  • Power supply circuit across voltage domain and printed circuit board
  • Power supply circuit across voltage domain and printed circuit board
  • Power supply circuit across voltage domain and printed circuit board

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0019] In order to maximize the conversion efficiency of the power supply, the power supply method of chips in series is adopted on the PCB, and a voltage domain is formed on each chip, and the power supply voltage of the series power supply chips forms an n-level series voltage domain. This power supply mode forms a multi-level series Voltage domain, each voltage domain has one or several chips. To supply power to the chip, in addition to supplying power to the co...

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Abstract

The invention discloses a cross-voltage domain power supply circuit and a printed circuit board, and the power supply circuit comprises an output wire which is used for outputting the voltage of a first voltage domain when the output wire is connected with the first voltage domain; and the voltage conversion circuit is used for converting the voltage of the first voltage domain into a voltage corresponding to a second voltage domain different from the first voltage domain, and the second voltage domain comprises more than two different voltage domains. Through the above mode, the number of wires can be reduced, technical support is provided for reducing PCB wiring, and technical support is provided for reducing PCB cost.

Description

technical field [0001] The present application relates to the technical field of circuit design, in particular to a power supply circuit and a printed circuit board across a voltage domain. Background technique [0002] With the development of semiconductor technology, in order to maximize the conversion efficiency of the power supply, the chip series power supply mode is adopted on the printed circuit board (PCB, Printed Circuit Boards). This power supply mode forms a multi-level series voltage domain, and each voltage domain has a one or more chips. To supply power to the chip, in addition to powering the computing unit and / or storage unit, it is also necessary to supply power to other functional components such as input and output (I / O) components, phase locked loop (PLL, Phase Locked Loop) circuits, and the like. In order to simplify the circuit and save costs, the way to cross the voltage domain is currently used to supply power to the auxiliary functional components i...

Claims

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Application Information

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IPC IPC(8): H02M1/00
CPCH02M1/00
Inventor 王利军吴飞
Owner BEIJING BITMAIN TECH LTD