Electrical transmission or interconnection systems – Plural load circuit systems – Plural sources of supply
Patent
1980-02-15
1982-01-26
Hix, L. T.
Electrical transmission or interconnection systems
Plural load circuit systems
Plural sources of supply
307 66, 307 82, 363 25, 363 37, H02J 700
Patent
active
043130607
ABSTRACT:
An uninterruptible power supply utilizes a controlled ferroresonant regulator to derive a regulated DC voltage from a primary AC source. A reserve source of DC power is coupled to the output through a DC voltage regulator which is activated when the DC output voltage of the power supply drops below a predetermined threshold.
REFERENCES:
patent: 3573483 (1971-04-01), White
patent: 3925772 (1975-12-01), Miller et al.
Fickenscher Hermann
Hock Richard H.
Ray Richard C.
Scuderi Rudolph
Bell Telephone Laboratories Incorporated
Dwyer James L.
Hix L. T,.
Steinmetz Alfred G.
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