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Power supply chip and method for adjusting output voltage of same

A technology of output voltage and power chip, applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc., can solve the problems of long time, cost increase, occupying circuit board space, etc., to achieve convenient production mode, reduce design difficulty, reduce Effect of Peripheral Devices

Active Publication Date: 2011-02-09
江苏航天龙梦信息技术有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the disadvantage of this method is that the power chip must have a peripheral configuration circuit to achieve voltage output, which not only takes more time for circuit design, but also takes up space on the circuit board, resulting in an increase in cost

Method used

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  • Power supply chip and method for adjusting output voltage of same
  • Power supply chip and method for adjusting output voltage of same
  • Power supply chip and method for adjusting output voltage of same

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Embodiment Construction

[0025] The technical scheme of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific examples, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention .

[0026] figure 2 Shown is a schematic structural diagram of an embodiment of a power chip of the present invention.

[0027] The power chip 20 includes a sub-power module 31 and a feedback voltage setting module 22 electrically connected to the sub-power module 31 .

[0028] The sub-power supply module 31 is used to output voltage, including an input terminal, a ground terminal corresponding to the input terminal, an output terminal, a ground terminal corresponding to the output terminal, and a voltage feedback terminal. The sub-power supply module 31 is the existing non-integrated feedback voltage setting module 22, which needs to use an external...

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PUM

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Abstract

The invention relates to a power supply chip which comprises a sub power supply module and a feedback voltage setting module, wherein the sub power supply module is used for outputting a voltage, the feedback voltage setting module is electrically connected with the sub power supply module and used for sampling a first feedback voltage according to the output voltage and judging whether a commandof adjusting the output voltage is received or not and adjusting the first feedback voltage into a second feedback voltage according to the command of adjusting the output voltage and feeding the second feedback voltage back to the sub power supply module; and the sub power supply module is used for adjusting the output voltage according to the second feedback voltage. The invention also providesa method for adjusting the output voltage of the power supply chip. The power supply chip and the method for adjusting the output voltage of the power supply chip can correct the output voltage of the power supply chip through a simulator, and reduce the peripheral elements of the power supply chip.

Description

technical field [0001] The invention relates to a power supply chip and a method for outputting voltage thereof, in particular to a programmable control power supply chip and a method for adjusting the output voltage of the power supply chip. Background technique [0002] Currently, there are various manufacturers and types of power chips, and no matter what kind of power chip it is, it is necessary to ensure the accuracy of its output voltage. In the prior art, in order to achieve the accuracy of the output voltage, the method adopted is to use a resistor network to generate a feedback voltage for the power chip to detect, and the power chip adjusts the output voltage according to the detection result to perform closed-loop control. As long as the output resistance value is determined, the output voltage will also be determined accordingly, and the output voltage cannot be changed. [0003] In response to the above shortcomings, some manufacturers currently use mechanical ...

Claims

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Application Information

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IPC IPC(8): G05F1/625
Inventor 伍学斌
Owner 江苏航天龙梦信息技术有限公司
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