Method for designing high-power and high-reliability server power supply by using modular power supply

A modular power supply and server technology, applied in the direction of conversion equipment without intermediate conversion to AC, cooling/ventilation/heating transformation, etc., can solve the problems of narrow operating temperature range of power supply, low reliability, large power supply volume, etc., and achieve reliability High, noise-cancelling, wide temperature range effect

Inactive Publication Date: 2010-11-24
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, this kind of power supply is mostly designed with discrete components, with a fan installed inside, and the heat is dissipated by forced convection, which makes a lot of noise, and uses a lot of electrolyti

Method used

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  • Method for designing high-power and high-reliability server power supply by using modular power supply
  • Method for designing high-power and high-reliability server power supply by using modular power supply

Examples

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Embodiment

[0014] Example: attached figure 1 In the initial state, except for the 5VSB channel, the power supply of other DC-DC modules is off by default. The 220V alternating current is converted into about 300V direct current after being purified by the filter and rectified by the rectifier bridge, and the 5VSB output is generated. When the external output is made, it supplies power to the control unit. The control unit monitors the input voltage status. When the input voltage is within the allowable range, the external input voltage is normal. At the same time, output signals to the on / off terminals of each module power supply, turn on each module power supply in sequence according to a certain sequence, first convert 300Vdc to 48Vdc bus voltage, and then convert it to the 12Vdc required by the system through the back-end DC-DC module power supply, 5Vdc and 3.3Vdc voltage. The control unit monitors each output, and provides a normal output voltage signal to the outside when the outpu...

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Abstract

The invention provides a method for designing a high-power and high-reliability server power supply by using a modular power supply. The method comprises the following steps of: 1) replacing a conventional printed circuit board (PCB) by a metal substrate in a brick-type DC-DC modular power supply, dissipating heat in a thermal conduction mode by using the metal substrate to save a fan and eliminate noises; 2) using surface mounting technology (SMT) capacitors including a multilayer ceramic capacitor and a tantalum capacitor in the brick-type DC-DC modular power supply to save an electrolytic capacitor, enhance reliability, reduce size and ensure that the brick-type DC-DC modular power supply runs at the temperature of between 55 DEG C below zero and 85 DEG C due to the saving of the electrolytic capacitor; and 3) filtering alternating current of 220V by using a filter, converting the filtered alternating current into high-voltage direct current by using a rectifier bridge, converting the brick-type DC-DC modular power supply input by the high-voltage direct current into intermediate direct current bus voltage of 48V and Standby voltage, converting the input brick-type DC-DC modular power supply of 48V into various voltages needed by a system, setting a control unit, controlling the time sequence of each path of output and providing various monitoring signals.

Description

technical field [0001] The invention relates to a power supply design technology for computers, in particular to a method for designing a high-power and high-reliability server power supply with a modular power supply. Background technique [0002] In the server field, AC-DC server power supply is the most widely used. At present, most of these power supplies are designed with discrete components, with fans installed inside, and forced convection to dissipate heat. There is a lot of noise, and many electrolytic capacitors are used, resulting in large volume and low reliability of the entire power supply. At the same time, due to the use of electrolytic capacitors, the The operating temperature range of this type of power supply is very narrow, and can only work in the range of -10°C to +50°C. In view of the above problems, the present invention proposes a method for designing a high-reliability server power supply with a module power supply, using a high-reliability DC-DC m...

Claims

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Application Information

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IPC IPC(8): H02M3/02H05K7/20
Inventor 吴安
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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