Universal serial bus charger circuit and charging method

Details Universal serial bus charger circuit and charging method Universal serial bus charger circuit and charging method

2008-09-18

2011-11-01

Williams, Arun (Department: 2858)

Electricity: battery or capacitor charging or discharging

Cell or battery charger structure

Having plug for a-c receptacle

C320S133000, C320S155000, C320S137000

Reexamination Certificate

active

08049462

ABSTRACT:
The present invention discloses a universal serial bus (USB) charging circuit, comprising: a charging path for charging a battery from a USB host; a charging switch located on the charging path; a current sensing circuit for sensing current information on the charging path; a maximum available current detection circuit for detecting the maximum available current from the USB host; and a loop controller circuit for controlling the charging switch so that the charging current on the charging path is substantially equal to the maximum available current detected by the maximum available current detection circuit, wherein the maximum available current detection circuit detects the maximum available current during circuit initialization and stores it.

REFERENCES:
patent: 5500584 (1996-03-01), Shimomoto
patent: 5739667 (1998-04-01), Matsuda et al.
patent: 2007/0188134 (2007-08-01), Hussain et al.
patent: 2007/0242300 (2007-10-01), Inai

Affiliated with

Also associated with

Rating

Universal serial bus charger circuit and charging method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Universal serial bus charger circuit and charging method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Universal serial bus charger circuit and charging method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4276620