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U.S. Department of Energy
Office of Scientific and Technical Information

Multichannel battery charger

Patent ·
OSTI ID:6469507
A battery charger for a rechargeable battery is described comprising: a current source switchable between a low charge state and a high charge state to provide current to said battery at a first level in said low charge state and to provide current to said battery at a second level in said high charge state; means for sensing the voltage of said battery; and a controller responsive to said voltage sensing means for controlling said current source to switch from said high charge state to said low charge state, said controller including a plurality of means for detecting events to cause said controller to switch from said high charge state to said low charge state upon the detection of any one of said events, one of said event detecting means including means for detecting a predetermined drop in said battery voltage after said battery voltage has reached a first predetermined level and another of said event detecting means including means for detecting that said battery voltage has been above a second predetermined level for a first period of time.
Assignee:
Monarch Marking Systems, Inc., Dayton, OH (United States)
Patent Number(s):
A; US 5218286
Application Number:
PPN: US 7-760764
OSTI ID:
6469507
Country of Publication:
United States
Language:
English

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