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Voltage conversion device, chip, power supply and electronic equipment

A technology of voltage conversion and electronic equipment, which is applied in the direction of output power conversion devices, electrical components, and adjustment of electrical variables, and can solve problems such as output voltage overshoot, undershoot, and output voltage instability

Active Publication Date: 2019-11-29
CHIPONE TECH BEIJINGCO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the case of disturbances in the input power supply, related technologies cannot quickly track the changes, which often lead to disturbances such as overshoot and undershoot in the output voltage, resulting in unstable output voltage.

Method used

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  • Voltage conversion device, chip, power supply and electronic equipment
  • Voltage conversion device, chip, power supply and electronic equipment
  • Voltage conversion device, chip, power supply and electronic equipment

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Embodiment Construction

[0045] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0046] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0047] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, componen...

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PUM

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Abstract

The invention relates to a voltage conversion device, a chip, a power supply and electronic equipment. The device comprises a voltage input module which is used for receiving input voltage; a detection module which is electrically connected with the voltage input module and used for sampling the current passing through the voltage input module to obtain the sampling current; a control module whichis electrically connected with the detection module and used for outputting a control signal and adjusting the duty ratio of the control signal according to the sampling current; and a voltage outputmodule which is electrically connected with the voltage input module, the detection module and the control module and used for outputting the target voltage according to the control signal and the input voltage. According to the voltage conversion device, the stable target voltage can be outputted and changes in the input voltage can be quickly responded so as to have the characteristics of reliability and stability.

Description

technical field [0001] The present disclosure relates to the technical field of integrated circuits, in particular to a voltage conversion device, chip, power supply and electronic equipment. Background technique [0002] In the AMOLED (Active-matrix organic light-emitting diode, active matrix organic light-emitting diode) power drive management chip, there is such a TDMA (Time division multiple access, time division multiple access) test requirement: input power every other The time will be disturbed, jumping up or down by 500mV in 10μs, and the jump of 500mV will last for at least 500μs. If such interference occurs, there must be overshoot (overshoot) or undershoot (undershoot) for the output of the DC-DC Boost architecture. It is required that this disturbance should be less than 20mV under load conditions within 200mA and within 1A. The load condition should be less than 60mV. [0003] However, in the case of disturbances in the input power supply, related technologies...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/158
CPCH02M3/158
Inventor 金宁
Owner CHIPONE TECH BEIJINGCO LTD
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