Soft-start device and method for DC-DC converter

A DC converter, soft start technology, applied in the direction of converting DC power input to DC power output, output power conversion device, high-efficiency power electronic conversion, etc., can solve the problems of PWM duty cycle increase, increase, difficult output voltage

Active Publication Date: 2020-03-06
SHENZHEN CHALLWOON SEMICON CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in order to achieve linear control during mode transition, the above device generates a control signal (E/A OUT) with an initial slope to respond to the slope of the control signal at the beginning of the switch

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Soft-start device and method for DC-DC converter
  • Soft-start device and method for DC-DC converter
  • Soft-start device and method for DC-DC converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. When describing the present invention, well-known functions or structures, such as the specific structure of a DC-DC converter, will not be described in detail. The switching mode which is classified into an asynchronous driving method and a synchronous driving method in terms described later may also be defined as a gate control mode.

[0039] first, figure 1 It is a structural schematic diagram of a soft start device for a DC-DC converter in an embodiment of the present invention, figure 2 for figure 1 Schematic diagram of the structure of the gate controller 12 in .

[0040] The soft start device for the DC-DC converter involved in the embodiment of the present invention uses the linear charging mode and the switch mode together to realize the soft start, and uses the asynchronous drive mode and the synchronous drive mode together i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a soft-start device and method for a DC-DC converter. The method includes the steps of: supplying a current in a linear charging mode so that the output voltage of the DC-DC converter rises linearly from an initial level; at the beginning of a switching mode, driving and controlling a plurality of the power switching elements in parallel in an asynchronous manner, therebyincreasing the output voltage while preventing inrush current; after the driving and controlling in the asynchronous manner, driving and controlling tje plurality of the power switching elements in parallel in a synchronous manner, thereby rapidly increasing the output voltage of the DC-DC converter to a target level.

Description

technical field [0001] The invention relates to a power supply device, in particular to a soft start device for a DC-DC converter and a method thereof. Background technique [0002] A power supply device for stably supplying electric power in electronic communication equipment is the most basic part of a language system, and as such a power supply device, research on a switch-mode power supply device such as a DC-DC converter is underway. [0003] A DC-DC converter that performs a step-up operation may generate excessive inrush current (inrush current) during startup. In order to prevent such a phenomenon, it is necessary to apply a soft-start method. [0004] Common soft-start methods include a linear charge method that provides a limited current to the output capacitor to increase the output voltage of the DC-DC converter, and improves the DC-DC conversion by changing the PWM (pulse width modulation) duty cycle. The switching method of the output voltage of the device, et...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02M1/32H02M1/36
CPCH02M1/32H02M1/36Y02B70/10H02M1/08H02M3/156H03K7/08H02M1/0058
Inventor 尹秉勋金庚焕梁大成郑遂暋
Owner SHENZHEN CHALLWOON SEMICON CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap