Reference compensation unit and switch-type voltage adjusting circuit

A technology of voltage adjustment circuit and reference compensation, which is applied in the direction of electrical components, adjustment of electrical variables, control/regulation systems, etc., can solve the problems of high cost and insignificant reduction of the resistance value of resistive connection components, etc., and achieve good load regulation efficiency, improved circuit performance, and reduced circuit size and cost

Active Publication Date: 2014-07-30
CHENGDU MONOLITHIC POWER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the implementation cost per unit area of ​​chip-scale packaging or flip-chip packaging is expensive, and the resistance value of the resistive connection element is not significantly reduced.

Method used

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  • Reference compensation unit and switch-type voltage adjusting circuit
  • Reference compensation unit and switch-type voltage adjusting circuit
  • Reference compensation unit and switch-type voltage adjusting circuit

Examples

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Embodiment Construction

[0024] Some embodiments of the present disclosure will be described in detail below. In the following description, some specific details, such as specific circuit structures in the embodiments and specific parameters of these circuit elements, are used to provide a better understanding of the embodiments of the present disclosure. It will be understood by those skilled in the art that the embodiments of the present disclosure may be practiced even without some details or other combinations of methods, elements, materials, and the like.

[0025]In the description of the present disclosure, when referring to "an embodiment" it means that the specific features, structures or parameters, steps, etc. described in the embodiment are included in at least one embodiment according to the present disclosure. Therefore, in the description of the present disclosure, if terms such as "according to an embodiment of the present disclosure" and "in an embodiment" are used, they are not used t...

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PUM

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Abstract

Provided are a reference compensation unit and a switch-type voltage adjusting circuit. The switch-type voltage adjusting circuit comprises an internal reference ground. The internal reference ground has average offset voltage of a first proportion coefficient to output current of the switch-type voltage adjusting circuit with respect to a ground pin. The reference compensation unit receives a second reference signal having band gap reference voltage with respect to the internal reference ground and a reference compensation signal of a second proportion coefficient to the output current. A first reference signal is provided by virtue of using a second compensation signal to compensate the second reference signal, and is enabled to be offset virtually with respect to the average offset voltage of the ground pin. The reference compensation unit utilizes existing modules in the switch-type voltage adjusting circuit to provide the reference compensation signal, thereby reducing/eliminating the influence of the average offset voltage on the first reference signal and the circuit load adjusting rate without increasing the circuit complexity and cost. Thus, the circuit performance is improved.

Description

technical field [0001] Embodiments of the present disclosure relate to power converters, and more particularly to reference compensation circuits in power converters. Background technique [0002] Switching voltage regulator circuits are widely used to provide power to various electronic devices. An electronic device powered by a switch-type voltage regulation circuit can generally be regarded as a load of the switch-type voltage regulation circuit. The switch-type voltage regulation circuit generally converts the input voltage into a suitable and stable output voltage for the load by controlling the periodic switching of the switch unit, and at the same time adjusts the power transmitted to the load. [0003] Generally, a switch-type voltage regulation circuit includes a control unit, which controls the switching of the switch unit based on a feedback signal reflecting the output voltage of the switch-type voltage regulation circuit and a reference signal representing the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00H02M3/156
CPCH02M3/158H02M1/0025
Inventor 保罗·尤纳坦恩郭王瑞
Owner CHENGDU MONOLITHIC POWER SYST
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