Battery charger with low standby current

Details Battery charger with low standby current Battery charger with low standby current

1997-02-26

1998-12-29

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Battery or cell charging

With detection of current or voltage amplitude

320DIG12, H02J 700

Patent

active

058545514

ABSTRACT:
An apparatus for charging a battery has a power supply terminal, a controllable power control switch coupled to said power supply terminal, a charging circuit having a charging terminal for connection to a terminal of the battery, and means for opening and closing the power control switch if a battery is disconnected or connected to the charging terminal, respectively. The means for opening and closing the power control switch may include an analog circuit, a digital circuit, a hybrid analog/digital circuit or a mechanical switch. A method of controlling a power control switch of a battery charging system is disclosed, comprising the steps of generating a reference voltage level, sensing the voltage level at the charging terminal, comparing the voltage level at the charging terminal to the reference voltage, and controlling the power control switch in response to the comparison of the reference voltage level and the voltage level at the charging terminal.

REFERENCES:
patent: 4223262 (1980-09-01), Ballman
patent: 4567421 (1986-01-01), Dattilo
patent: 4584514 (1986-04-01), Kaminski
patent: 4680528 (1987-07-01), Mikami et al.
patent: 4727306 (1988-02-01), Misak et al.
patent: 5291118 (1994-03-01), Kojima
patent: 5530337 (1996-06-01), Yamamoto
patent: 5541491 (1996-07-01), Yamazaki et al.
patent: 5644210 (1997-07-01), Hwang

Affiliated with

Also associated with

Rating

Battery charger with low standby current does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Battery charger with low standby current, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery charger with low standby current will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1427058