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Power supply circuit

A power supply circuit, power supply technology, applied in data processing power supply, measurement device, measurement flow/mass flow, etc., can solve the problem of increasing the cost of the power supply, and achieve the effect of reducing the cost of the power supply

Inactive Publication Date: 2014-02-12
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when it is necessary to supply power to three to four motherboards or even more motherboards of the server, if one power supply is also used to supply power to one motherboard, the same number of power supplies as the number of motherboards is required to satisfy the power supply requirements of multiple motherboards. demand, virtually increases the cost of the power supply

Method used

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Embodiment Construction

[0011] see figure 1 , is a schematic diagram of a preferred embodiment of the power supply circuit of the present invention. The power supply circuit includes a power supply unit (Power supply unit, PSU) 1 , a microcontroller 2 , multiple power management chips 3 and multiple switch circuits 4 .

[0012] The PSU 1 includes a power output terminal 101 and a power control terminal 102 for outputting a power supply voltage. In this embodiment, the PSU 1 is obtained by connecting multiple power supplies in parallel, and the rated power of the PSU 1 is equal to the sum of the rated power of the multiple power supplies.

[0013] The switch circuit 4 includes an input terminal Vin, an output terminal Vout, and a switch control terminal Ctr for controlling whether the input terminal Vin and the output terminal Vout of the switch circuit 4 are connected. The input terminal Vin of each switch circuit 4 is connected in series with a resistor R to the power supply output terminal 101 of...

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Abstract

A power supply circuit comprises a power supply unit, a microcontroller, a plurality of power management chips and a plurality of switching circuits. Each of the switching circuits comprises an input end and an output end, wherein the input end of each of the switching circuits is connected with the power supply unit after being connected with a resistor in series, and the output end of each of the switching circuits is connected with a mainboard to supply power to the mainboard. Each of the power management chips is connected with the microcontroller through a power management bus to monitor real power consumption of each of the mainboards during operation in real time and feed the monitored results back to the microcontroller. The microcontroller is connected with each of the mainboards through a data line to regulate and manage power use of each of the mainboards according to the rated power of the power supply unit and the sum of the real power consumption of the mainboards. The power supply circuit has the function of limiting current and power among a plurality of mainboards and provides comprehensive safeguard procedures for the mainbaords.

Description

technical field [0001] The invention relates to a power supply circuit. Background technique [0002] Generally, the power supply circuit for servers includes voltage generation circuits that output various supply voltages (such as 12V, 5V, 3.3V, etc.), expansion and extension circuits, voltage / current protection circuits, temperature detection and fan control circuits, etc. Typically, a server-based product architecture consists of a power supply supplying power to a server board. However, when it is necessary to supply power to three to four motherboards or even more motherboards of the server, if one power supply is also used to supply power to one motherboard, the same number of power supplies as the number of motherboards is required to meet the power supply requirements of multiple motherboards. demand, virtually increases the cost of the power supply. Therefore, how to use fewer power supplies to meet the power supply requirements for multiple motherboards is a prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/26
Inventor 梁献全许寿国
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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