Electrical transmission or interconnection systems – Plural supply circuits or sources – One source floats across or compensates for other source
Patent
1996-10-18
1998-10-20
Gaffin, Jeffrey A.
Electrical transmission or interconnection systems
Plural supply circuits or sources
One source floats across or compensates for other source
307 44, 320102, 320118, H02J 332
Patent
active
058250999
ABSTRACT:
An uninterruptible power supply circuit has a first power supply unit for supplying a first power supply voltage; a second power supply unit for supplying a second power supply voltage which is lower than the first power supply voltage; a back-up power supply unit for supplying a back-up power supply voltage; a charge current control unit for receiving the first power supply voltage and for controlling a charge current which is supplied to the back-up power supply unit according to a capacity of the back-up power supply unit; a reverse current protection unit connected between the second power supply unit and an output node connected to an output terminal; an overcharge protection unit connected between the back-up power supply unit and the output node, for protecting the back-up power supply unit from being overcharged; and a relay unit which is driven by the first power supply voltage and forms a path for outputting the back-up power supply voltage to the output node when the first power supply voltage is cut off.
REFERENCES:
patent: 4287465 (1981-09-01), Godard et al.
patent: 4482815 (1984-11-01), Orengo
patent: 4730121 (1988-03-01), Lee et al.
patent: 4763014 (1988-08-01), Model et al.
patent: 5033882 (1991-07-01), Vanderpool et al.
patent: 5073837 (1991-12-01), Baek
patent: 5150032 (1992-09-01), Ho
patent: 5271481 (1993-12-01), Narita et al.
patent: 5278798 (1994-01-01), Miyawaki
patent: 5300874 (1994-04-01), Shimamoto et al.
patent: 5408170 (1995-04-01), Umetsu et al.
patent: 5418445 (1995-05-01), Alpert et al.
patent: 5440179 (1995-08-01), Severinsky
patent: 5471114 (1995-11-01), Edwards et al.
patent: 5610450 (1997-03-01), Sacki et al.
patent: 5650669 (1997-07-01), Aldous
Bushnell Esq. Robert E.
Gaffin Jeffrey A.
Paladini Albert W.
Samsung Electronics Co,. Ltd.
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