Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
Patent
1985-09-03
1987-06-09
Shoop, Jr., William M.
Electrical transmission or interconnection systems
Plural supply circuits or sources
Substitute or emergency source
307 64, 361 90, H02J 906
Patent
active
046722289
ABSTRACT:
A battery back-up system providing a short term hold-up for a converter type switched power supply. The back-up system includes a regulated charger circuit for maintaining the battery in a charged condition and a direct current fan which cools the power supply in both the normal and battery back-up modes. Over-voltage protection for the system is provided during the battery back-up mode, and protection for the battery is provided against excessive battery charging voltages. The fan and regulator are automatically turned off when the battery reaches a deep discharge condition to protect the battery.
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Beecher Keith D.
Ip Shik Luen Paul
Pioneer Magnetics, Inc.
Shoop Jr. William M.
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