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Voltage adjusting device, chip, power supply and electronic equipment

A technology of voltage adjustment and current adjustment, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve the problems of output voltage overshoot, undershoot, output voltage instability, etc.

Pending Publication Date: 2020-08-28
CHIPONE TECH BEIJINGCO LTD
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  • Summary
  • 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 adjusting device, chip, power supply and electronic equipment
  • Voltage adjusting device, chip, power supply and electronic equipment
  • Voltage adjusting device, chip, power supply and electronic equipment

Examples

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Embodiment Construction

[0054] 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.

[0055] 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.

[0056] 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, components...

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Abstract

The invention relates to a voltage adjusting device, a chip, a power supply and electronic equipment, and the device comprises: a voltage input module which is used for receiving an input voltage; thecurrent determination module that is electrically connected to the voltage input module and is used for determining an adjustment current according to the input voltage and the variation of the inputvoltage and the adjacent input voltage at the previous moment; the control module that is electrically connected to the current determination module and is used for outputting a control signal according to the adjustment current; and the voltage output module that is electrically connected with the voltage input module, the current determination module and the control module, and that is used foroutputting a target voltage according to the control signal and the input voltage. According to the voltage adjusting device provided by the invention, stable target voltage can be output, the changeof input voltage can be quickly responded, and the voltage adjusting device has the characteristics of reliability and stability.

Description

technical field [0001] The present disclosure relates to the field of integrated circuits, in particular to a voltage adjustment 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 cannot qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/56
CPCG05F1/561Y02B20/30H02M3/156H02M1/0025H02M1/0022H02M1/0019H02M3/158G05F1/56G01R19/25G01R19/165G01R15/04H02M1/0009H02M1/0045
Inventor 金宁
Owner CHIPONE TECH BEIJINGCO LTD
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