Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Low Dropout Linear Regulator System

A low-dropout linear and voltage-stabilizing technology, applied in control/regulation systems, instruments, and regulation of electrical variables, can solve problems such as slow charging of load capacitors

Active Publication Date: 2022-01-07
SHENZHEN GOODIX TECH CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art, the present invention provides a low-dropout linear voltage regulator system to solve the problem of slow charging of the load capacitor when the input voltage is less than the segment point Vx

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
  • A Low Dropout Linear Regulator System
  • A Low Dropout Linear Regulator System
  • A Low Dropout Linear Regulator System

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] In order to make the purpose, features, and advantages of the embodiments of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, The described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the embodiments of the present invention.

[0036] figure 1 It is a schematic block diagram of a low-dropout linear regulator system according to an embodiment of the present application. Such as figure 1 As shown, in an embodiment, the low dropout linear voltage regulator system includes a reference voltage circuit 110 , a primary contr...

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

A low-dropout linear voltage stabilizing system, comprising: a reference voltage circuit (110), which receives an input voltage (VIN) provided by a power supply; a primary control circuit (120), which receives the input voltage (VIN) and the reference voltage circuit (110) The provided reference current outputs the first control signal; the secondary control circuit (130) receives the input voltage (VIN) and the reference voltage provided by the reference voltage circuit (110), and outputs the second control signal; the logic circuit (140) receives The first control signal and the second control signal are used to perform "AND" logic operation on the first control signal and the second control signal; a low-dropout linear voltage regulator circuit (150), which receives an input voltage (VIN) and is combined with the logic circuit The output terminal of (140) is connected, and the output terminal of the low-dropout linear regulator circuit (150) is used for connecting the load. The low-dropout linear regulator system is less affected by process and temperature, and can quickly charge the load capacitor.

Description

technical field [0001] The embodiment of the present invention relates to voltage stabilizing circuit technology, in particular to a low-dropout linear voltage stabilizing system. Background technique [0002] LDO (Low Dropout Regulator, low dropout linear regulator) uses a transistor or field effect transistor (FET) operating in its linear region to subtract excess voltage from the input voltage to generate a regulated output voltage. Because of its low cost, low noise, and low quiescent current, it is widely used in power supply circuits. Typically, an LDO includes the main parts of a pass element (transistor or FET), a reference voltage, and an error amplifier. [0003] The applicable condition of the existing low-dropout linear regulator is that the input voltage must be higher than the segmentation point Vx of the pass element. The segmentation point Vx is the critical voltage value between the two states of the circuit. Once the input voltage is lower than the segment...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/56
CPCG05F1/56
Inventor 张浩
Owner SHENZHEN GOODIX TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com