Card device driving circuit

A technology for driving circuits and card devices, which is applied to electrical components, electrical digital data processing, instruments, etc., and can solve problems such as damaged power supplies and power failures

Inactive Publication Date: 2013-06-26
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

At this time, the power of the motherboard at the moment of startup may reach the upper limit of the power supply, which will cause the power supply to fail to start due to over-current protection, or even directly damage the power supply.

Method used

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Embodiment Construction

[0015] see figure 1 , the first preferred embodiment of the present invention provides a card device driving circuit 100, which is used in a terminal device, such as a personal computer or a server. The card device driving circuit 100 is arranged on the main board (not shown) of the terminal equipment. The card device driving circuit 100 includes a power supply 10, a power connector 20, a delay circuit 30, a first signal generating circuit 40 and a second signal generating circuit 100. A circuit 50 is generated.

[0016] In this embodiment, the card device drive circuit 100 is used to provide voltages for the four PCIE slots S1, S2, S3, and S4 to drive various communication cards inserted in the PCIE slots S1-S4, such as Network card, graphics card, sound card and RAID card, etc.

[0017] The power supply 10 is electrically connected to the power connector 20 so as to output three reference voltages through the power connector 20 , namely P3V3_AUX, P3V3, and P12V. The PCIE ...

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PUM

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Abstract

The invention provides a card device driving circuit which is used for providing driving voltage for a plurality of communication cards of a terminal device which comprises a main board. The card device driving circuit comprises a power supply connector, a time delay circuit, a first signal generation circuit and a second signal generation circuit. The power supply connector receives a control signal from the main board and transmits the control signal to the first signal generation circuit and the time delay circuit; the first signal generation circuit receives the control signal and outputs driving voltage to at least one communication card; the time delay circuit receives the control signal and outputs a time delay control signal to the second signal generation circuit after time delay; and the second signal generation circuit receives the time delay control signal and outputs the driving voltage to another at least one communication card. The card device driving circuit leads different communication cards not to need to be started simultaneously and reduces power of the main board of the terminal device during instant starting.

Description

technical field [0001] The invention relates to a drive circuit, in particular to a card device drive circuit. Background technique [0002] Most of the motherboards of personal computers and servers integrate multiple Peripheral Component Interconnect-Express (PCIE) slots to assemble various communication cards, such as network cards, graphics cards, sound cards and redundant arrays of independent disks (Redundant Array). of Independent Disks, RAID) card, etc. During the power-on process of the motherboard, if multiple communication cards are started at the same time, their power may exceed 100 watts. At this time, the power of the motherboard at the moment of startup may reach the upper limit of the power supply, which will cause the power supply to fail to start due to over-current protection, or even directly damage the power supply. Contents of the invention [0003] In view of the above situation, it is necessary to provide a card device driving circuit that can re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K5/135
CPCG06F13/4072Y02D10/00
Inventor 肖贵富翁程飞刘洋
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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