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dc-dc converter

A boost converter and inductor technology, which is applied in the direction of output power conversion devices, instruments, DC power input conversion to DC power output, etc., can solve problems such as bad pictures, achieve enhanced work quality, and enhance line regulation rate characteristics , Enhance the effect of line regulation rate characteristics

Active Publication Date: 2021-05-07
ZINITIX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the input voltage to the active matrix organic light emitting diode panel is greater than the pre-designed value, it will cause poor picture

Method used

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Embodiment Construction

[0060]Hereinafter, description will be given with reference to the drawings to which embodiments of the present invention are attached. However, the present invention is not limited to the examples described in this specification, and can be embodied in various other embodiments. Terms used in this specification are used to help understanding of the embodiments, and are not intended to limit the scope of the present invention. In addition, the singular form used below also includes the plural form unless the opposite meaning is clearly indicated in the sentence.

[0061] The specific voltage values ​​expressed in the embodiments described below are specified for convenience of description, and it should be noted that even if the voltage values ​​are changed, the concept of the present invention will be maintained.

[0062] In this specification, for the sake of convenience, the gate voltage provided to turn off the NMOS or PMOS may be referred to as "gate off voltage".

[00...

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Abstract

The present invention discloses a DC-DC boost converter, which is characterized in that it includes a boost converter, and the boost converter includes NMOS and PMOS, so that the above-mentioned The gate voltage of the PMOS is always controlled by means of a gate-off voltage. The above-mentioned DC-DC converter includes: a direct current voltage conversion part of switching type; a modulated waveform signal control section, wherein the duty ratio of the pulse width modulated waveform signal is determined based on a feedback voltage input to the pulse width modulated waveform signal control section; A value proportional to the voltage is generated by subtracting a value proportional to the DC input voltage input to the DC voltage conversion unit, and the error voltage is a difference between a value related to the DC output voltage output from the DC voltage conversion unit and a predetermined reference voltage. The difference between them is proportional.

Description

technical field [0001] The present invention relates to a DC-DC converter, in particular to the structure of a DC-DC step-up converter capable of providing a required output voltage for a high input voltage, and to correcting the output voltage by using the change value of the input voltage of the DC-DC converter Technology. Background technique [0002] In order to provide DC voltage input to the Active Matrix Organic Light Emitting Diode (AMOLED) panel, it is necessary to change the level of the DC input voltage provided by the battery or a predetermined DC power source to be suitable for the above-mentioned Active Matrix Organic Light Emitting Diode (AMOLED) panel. The DC output voltage of the bulk board, this function can be performed by a DC-DC converter. [0003] Or, in order to provide a DC output voltage input to the battery charged during wireless charging, it is necessary to change the level of the DC input voltage provided by the wireless charging device to a DC ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/155H02M1/088H02M1/08G05F3/26H02M1/00
CPCH02M3/156H02M1/08H02M1/088H02M3/155G05F3/26
Inventor 金学润金柱权
Owner ZINITIX
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