Battery charger for a portable wireless telephone set having mea

Details Battery charger for a portable wireless telephone set having mea Battery charger for a portable wireless telephone set having mea

1990-07-05

1992-07-14

Hickey, R. J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 24, 320 39, H02J 704

Patent

active

051306344

ABSTRACT:
A battery charger for a portable wireless telephone set comprising a rapidly charging circuit for rapidly charging the battery by a first charging current of a high level at a start of the charging operation, a tricklingly charging circuit for tricklingly charging the battery by a second charging current of a considerably low level, and a charge controller for making the tricklingly charging circuit take over the rapidly charging circuit after a charge detecting circuit detects that the battery is rapidly charged to its normal voltage. In order to avoid that the battery is insufficiently charged by the tricklingly charging circuit when the telephone set is left in a power-on condition, the battery charger further comprises another charging circuit for supplying a third charging current which is lower thn the first charging current but higher than the second charging current. When the telephone set is in the power-on condition, the charge controller operates not the tricklingly charging circuit but the other charging circuit after the battery is rapidly charged to its normal voltage, so that the battery can be charged to the normal voltage even if the telephone set is left in the power-on condition.

REFERENCES:
patent: 3602794 (1971-08-01), Westhaver
patent: 3854082 (1974-12-01), Nasby et al.
patent: 4670703 (1987-06-01), Williams

Affiliated with

Also associated with

Rating

Battery charger for a portable wireless telephone set having mea 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 for a portable wireless telephone set having mea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery charger for a portable wireless telephone set having mea will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-337294