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US 7,679,335 B1Granted
Battery charger for aircraft emergency egress batteries
OwnerRalph C. Collins, Greg N. Pierceinventors
Life of this patent
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Abstract
A battery charger includes one or more channels for independently charging one or more batteries at different current levels. The battery charger also includes multiple modes for each channel for charging a battery with a continuous current or a pulse current. The battery charger supplies charging current by holding the voltage at a set value.
Claims21
Battery charging apparatus comprising in combination:
- means for providing a source of current;
- a timer for setting a predetermining a length of time for charging the battery;
- an amplitude voltage control circuit for providing a first mode of charging;
- a pulse voltage control circuit for providing a second mode of charging;
- a mode selector switch for selecting a mode of charging to the first mode of charging or to the second mode of charging;
- means for setting a desired charging current;
- a current meter for displaying the charging current;
- means for connecting the charging current to the battery to be charged;
- and
- an on-off switch for connecting the charging current to the battery to be charged for the predetermined length of time.
7 more elements
Apparatus for charging a plurality of batteries comprising in combination:
- means for providing a source of current;
- a plurality of amplitude voltage control circuits;
- means for independently controlling the amplitude of each circuit of the plurality of amplitude voltage control circuits and defining a first mode for charging the plurality of batteries;
- a plurality of pulse voltage control circuits;
- means for independently controlling the amplitude of the voltage of each circuit of the plurality of pulse voltage control circuits and defining a second mode for charging the plurality of batteries;
- a mode selector switch for selecting a mode for charging the plurality of batteries to the first mode of charging or to the second mode of charging;
- a timer for setting a predetermined length of time for charging the batteries;
- means for setting a desired charging current for each battery of the plurality of batteries to be charged;
- a plurality of meters for displaying the charging current to the plurality of batteries to be charged;
- means for connecting the charging current to the plurality of batteries to be charged;
- and
- an on-off switch for connecting the charging current to the plurality of batteries.
9 more elements
Dependencies are inferred from the claim text.