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Method for dynamically regulating memory voltage to enhance system stability

A system stability and dynamic adjustment technology, applied in the computer field, can solve time-consuming and labor-intensive problems, and achieve the effect of improving stability

Inactive Publication Date: 2012-06-27
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current method is to fix the voltage of the power supply so that the voltage will be different when the memory is in different working states. In order to obtain the optimal value, it is often necessary to rework the power supply several times and replace the feedback resistors with different resistance values ​​for testing. time consuming

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  • Method for dynamically regulating memory voltage to enhance system stability
  • Method for dynamically regulating memory voltage to enhance system stability

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Embodiment Construction

[0014] A method for dynamically adjusting memory voltage to improve system stability of the present invention will be described in detail below with reference to the accompanying drawings.

[0015] attached figure 1 The basic composition of the circuit is indicated.

[0016] The invention is composed of a serial bus I2C (Inter-Integrated Circuit), an I2C controller, a digital potentiometer DCP, a feedback voltage comparator and a power output controller.

[0017] The adjustment steps are as follows:

[0018] 1) The I2C controller sends commands to the digital potentiometer DCP through the serial bus I2C;

[0019] 2) The digital potentiometer DCP sets the value of the sliding rheostat;

[0020] 3) The digital potentiometer DCP controls the position of the sliding end contact of the sliding rheostat to change the Rw resistance value;

[0021] 4) The change of Rw resistance will affect the change of Rw terminal potential;

[0022] 5) The feedback voltage comparator compares...

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Abstract

The invention provides a method for dynamically regulating memory voltage to enhance system stability. The regulation steps are as follows: (1) via a serial bus I2C (inter-integrated circuit), an I2C controller sends an instruction to a digital potentiometer DCP; (2) the value of a slide rheostat is set by the digital potentiometer DCP; (3) the contact of the sliding end of the slide rheostat is controlled by the digital potentiometer DCP to change position, so that Rw resistance is changed; (4) the change of the potential of the Rw end is affected by the change of the Rw resistance; (5) a feedback voltage comparator compares the original potentials of the Vfb end and the Rw end, and feeds a result back to a power output control chip PWM; (6) the power output control chip PWM can regulate the duty cycle of the upper and the lower bridge switching of a power controller GateControl according to the feedback result, so that a new output voltage value is generated, the new output voltage can be fed back to the digital potentiometer DCP to control the slide rheostat to generate a new potential at the Rw end, and step 5 is then repeated; (7) the regulation is repeated for multiple times until balance is reached, and thereby the on-line dynamic regulation of output voltage is realized.

Description

technical field [0001] The invention relates to a computer technology, in particular to a method for dynamically adjusting memory voltage to improve system stability. Background technique [0002] With the development of technology, the density of various boards is gradually increasing, and the requirements for the power supply of the memory are more stringent, not only the margin test is required, but also the power supply is required to provide stable voltage under various working conditions of the memory. The current method is to fix the voltage of the power supply so that the voltage will be different when the memory is in different working states. In order to obtain the optimal value, it is often necessary to rework the power supply several times and replace the feedback resistors with different resistance values ​​for testing. Time consuming. However, this patent provides a memory voltage that can be dynamically adjusted online through I2C. Contents of the invention...

Claims

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Application Information

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IPC IPC(8): G06F1/26
Inventor 张磊贡维
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD