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

Cable quality detection and power consumer devices

a technology of quality detection and power consumer devices, applied in the direction of instruments, thermometers using value differences, heat measurement, etc., can solve the problems of poor quality control of usb manufacturers, cables may become defective during use, and usb cables including pd-aware cables may not be able to safely handle large currents

Active Publication Date: 2015-10-22
INFINEON TECH AG
View PDF0 Cites 35 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, USB cables including PD-aware cables may not be able to safely handle the large currents.
For example, the cables may become defective during use due to field stress.
Additionally, some of the USB manufacturers may not have good quality control.
The large power supplied through a defective USB can pose a significant safety risk.
Similarly, due to backward compatibility, end users may not be aware of the necessity to use the newer PD-aware cables.

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
  • Cable quality detection and power consumer devices
  • Cable quality detection and power consumer devices
  • Cable quality detection and power consumer devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018]The making and using of the presently preferred embodiments are discussed in detail below. It should be appreciated, however, that the present invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific embodiments discussed are merely illustrative of specific ways to make and use the invention, and do not limit the scope of the invention.

[0019]The present invention will be described with respect to preferred embodiments in a specific context, a system and method for mitigating risk of arcing in USB cables during power delivery. The invention may also be applied to other applications including other cables that perform communication and / or provide power to electronic devices.

[0020]When a cable that is under-rated is used for an application that draws a higher current, the cable insulator deteriorates due to heating over a period of time. A wire or cable subjected to stress heats up due to the passage of electr...

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

PropertyMeasurementUnit
poweraaaaaaaaaa
poweraaaaaaaaaa
poweraaaaaaaaaa
Login to View More

Abstract

In one embodiment, a method includes receiving power at a power consumer device coupled to a power provider device by a cable. The received power is supplied at a first current at an input of the power consumer device and is supplied to a load in the power consumer device. The method includes measuring a rate of change of the voltage at the input of the power consumer device, and determining whether the rate of change of the voltage at the input of the power consumer device is less than a first target rate of change of voltage. The current received at the input of the power consumer device is reduced to a second current lower than the first current if the rate of change of the voltage at the input of the power consumer device is greater than the first target rate of change of voltage.

Description

TECHNICAL FIELD[0001]The present invention relates generally to cable quality detection, and, in particular embodiments, to a system and method for cable quality detection and power consumer devices.BACKGROUND[0002]Universal Serial Bus (USB) is an industry standard developed that defines the cables, connectors and communications protocols used in a bus for connection, communication, and power supply between electronic devices.[0003]In many portable products, USB is often used both as a communication port and as a power delivery port to accommodate battery charging. For example, a standard USB 2.0 compliant port may provide a maximum power delivery of 7.5 W (5V at 1.5 A) to a dedicated charging port that may be used to recharge the battery of a portable device. However, as the battery capacities of portable devices are increasing, for example, from 5600 mAh to 8000 mAh and 10000 mAh, the charging time for these devices increases accordingly. For example, using a standard USB 2.0 comp...

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 Applications(United States)
IPC IPC(8): G05F5/00H02J7/00G01K7/00
CPCG05F5/00H02J7/0052G01K7/00G01K3/10G01K7/16G01K2217/00G06F1/28H02J7/00
Inventor LIM, CHEOW GUAN
Owner INFINEON TECH AG
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