Battery saving switching mechanism
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United States of America Patent
Stats
-
Sep 8, 1998
Grant Date -
N/A
app pub date -
Mar 31, 1997
filing date -
Mar 31, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An intelligent switching mechanism for the backup batteries of an alarm system is disclosed. When AC input power has failed but no alarm has been declared, the batteries are switched into a parallel configuration, which is sufficient to supply the control panel, so that the batteries are drained in tandem. When AC input power has failed and an alarm has been declared, the batteries are switched into a series configuration to supply power at the higher voltage required by the alarm annunciators.
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Family
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