Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
Patent
1994-12-30
1996-12-17
Wysocki, Jonathan
Electrical transmission or interconnection systems
Plural supply circuits or sources
Substitute or emergency source
307 43, 307 66, 320 2, 363 37, 363108, 363126, 327538, H02J 710
Patent
active
055856772
ABSTRACT:
The present invention discloses a backup power-supply system for emergency that may apply power to a data processing system and recover the information in it when the power supply is cut off or a power-supply connector is abruptly removed due to a careless user, so as to prevent the damage to the information the user is working on.
When the power is applied to the system, a battery is charged with the direct current power applied from a linear conversion rectifier by a battery charger, and when the power is not applied to the system while a power switch is being turned on, a DC/DC converter is operated by a power controller to apply the DC power charged in the battery to the main power-supply system after the direct current has been converted into DC/DC power in such a manner that the main power-supply means applies to the system the power for recovering the information a user was working on in the system.
REFERENCES:
patent: 4194240 (1980-03-01), Davis
patent: 5079527 (1992-01-01), Goldfarb
patent: 5289046 (1994-02-01), Gregororich
patent: 5347164 (1994-09-01), Yeh
patent: 5384792 (1995-01-01), Hirachi
patent: 5465011 (1995-11-01), Miller et al.
Cheon Kyungyong
Lee Kyungsang
Min Kyungseol
Paladini Albert W.
Samsung Electronics Co,. Ltd.
Wysocki Jonathan
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