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Power supply converting device

A power conversion and circuit technology, applied in the direction of output power conversion devices, electrical components, etc., can solve the problems that the power conversion device 110 cannot operate normally, the level is pulled down, etc.

Inactive Publication Date: 2010-09-22
INVENTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the input voltage V IN1 with core voltage V CORE1 The level of will be pulled low at the same time, which will cause the power conversion device 110 to fail to operate normally

Method used

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Embodiment Construction

[0013] Before describing the embodiments of the present invention, it is assumed that the power conversion device described in the following embodiments is suitable for a server, and can provide input voltage and core voltage for application-specific integrated circuits in the server. However, the above assumptions are not intended to limit the present invention, and those skilled in the art can arbitrarily change the application form of the power conversion device described in the present invention according to design requirements.

[0014] figure 2 It is a schematic diagram of a circuit structure of a power conversion device according to an embodiment of the present invention. in, figure 2 It further shows the relative relationship between the power conversion device 200 and the specific application integrated circuit 201 in application of this embodiment. Here, the power conversion device 200 is used to convert an input voltage V IN2 converted to a core voltage V CORE...

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PUM

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Abstract

The invention discloses a power supply converting device which comprises a pulse width modulating circuit, a switching unit, a power output unit and a voltage activating unit, wherein the pulse width modulating circuit increases an activating voltage in a soft activating way and is operated at the activating voltage for generating a pulse width modulating signal; the switching unit is used for receiving an input voltage and alternately forms a charging path and a discharging path according to the pulse width modulating signal; the power output unit is used for matching with the charging path and the discharging path to convert the input voltage into a core voltage; and the voltage activating unit is used for detecting the activating voltage and transmitting a control signal when the activating voltage is smaller than the core voltage so that the discharging path can not be formed.

Description

technical field [0001] The present invention relates to a power conversion device, and in particular to a power conversion device controlled by a voltage activation unit and a pulse width modulation circuit. Background technique [0002] In system design of a server, application specific integrated circuits (Application Specific Integrated Circuits, ASICs) are commonly used integrated chips. These integrated chips use the input voltage and core voltage in the server to perform corresponding operations, and the server converts the input voltage into the core voltage through a power conversion device. It is worth noting that in order to comply with the logic design of the server, there are generally specific requirements for the supply timing of the input voltage and the core voltage, that is, the time point of supplying the input voltage must be earlier than the core voltage. [0003] In view of the above situation, figure 1 It is shown as a partial circuit diagram of a tra...

Claims

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Application Information

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IPC IPC(8): H02M1/36H02M1/08
Inventor 夏春华刘士豪
Owner INVENTEC CORP