Method for simulating direct-current voltage drops of multiple controlled voltage sources
A technology of controlled voltage source and DC voltage drop, applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc., to achieve balanced current output, reduce energy loss, current output or controllable unbalanced effects
Active Publication Date: 2014-04-16
JIANGNAN INST OF COMPUTING TECH
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Problems solved by technology
[0007] The technical problem to be solved by the present invention is to provide a DC voltage drop simulation method for multi-channel controlled voltage sources to solve the output voltage setting problem of each module output current balance and improve the accuracy of the simulation in view of the above-mentioned defects in the prior art Sexuality and convenience, providing a parameter configuration basis for subsequent simulations
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[0025] In order to make the content of the present invention clearer and easier to understand, the content of the present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.
[0026] figure 1 A flow chart of a method for simulating a DC voltage drop of multiple controlled voltage sources according to an embodiment of the present invention is schematically shown.
[0027] Such as figure 1 As shown, the DC voltage drop simulation method of the multi-channel controlled voltage source according to the embodiment of the present invention includes:
[0028] The first step S1: use multiple ideal current sources (the ideal current source refers to a power supply with constant input current) to replace multiple power modules with multiple controlled voltage sources, and set the load chips shared by each power module The driving current of the power module is used as the output current of the power module, and the output curr...
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The invention provides a method for simulating direct-current voltage drops of multiple controlled voltage sources. The method includes replacing a plurality of power modules of the multiple controlled voltage sources by a plurality of ideal current sources, and replacing a load chip by an ideal voltage source without an internal resistor so as to simulate the integrity of power sources and obtain a direct-current voltage drop of each power supply path from the load chip to the corresponding power module; adding each direct-current voltage drop of the corresponding power supply path, a voltage drop of an internal resistor of the corresponding power module and fixed voltage of a corresponding position of the load chip together to obtain an output voltage value of the power module; and replacing the load chip by a single ideal current source, setting a total output current value of the single ideal current source according the sum output current shared by the various power modules of the multiple controlled voltage sources, and replacing the multiple power modules of the multiple controlled voltage sources by a plurality of ideal voltage sources with internal resistors so as to simulate the integrity of the power sources, obtain a direct-current drop of each power supply path from the load chip to the corresponding power module and obtain output current of each power module.
Description
technical field [0001] The invention relates to a method for simulating a DC voltage drop of multiple controlled voltage sources. Background technique [0002] As the power consumption of high-performance processor chips continues to increase significantly, chips with high power consumption often use a multi-channel multi-phase controlled power supply mode. The multi-channel controlled voltage source referred to here has the following meanings: 1) The selection of the number of power supply modules is mainly based on two considerations. The multi-channel power supply module is used to ensure the ability of reliable power supply, and the decentralized layout of the multi-channel power supply can effectively reduce the current density. (However, it leads to differences in the impedance of the power supply path of each power module), preventing problems such as path loss, local heating, and excessive voltage drop caused by excessive current density; 2) The key points of the con...
Claims
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IPC IPC(8): G05F1/56
Inventor 刘耀贾福桢胡晋王彦辉吕春阳
Owner JIANGNAN INST OF COMPUTING TECH