H - Electricity – 02 – M
Patent
H - Electricity
02
M
323/5, 321/65
H02M 7/02 (2006.01) H02J 9/06 (2006.01) H02M 3/10 (2006.01) H02M 7/06 (2006.01)
Patent
CA 1210810
SUPPLY FOR PROVIDING UNINTERRUPTIBLE D-C POWER TO A LOAD_ ABSTRACT OF THE DISCLOSURE A system for supplying uninterruptible d-c power to a load, When the system operates in its normal mode, d-c load power is provided by the combination of a rectifier and a power switch. The d-c output of the rectifier may be used by a d-c to d-c down converter to recharge and maintain a battery if a separately powered source is not available for that purpose. A d-c to d-c up converter provides a relatively high amplitude d-c voltage from the battery voltage. The amplitude of this voltage is lower than the amplitude of the d-c output of the rectifier in the normal mode. When the amplitude of the rectifier output falls below the d-c to d-c up converter output voltage, the system changes to its failure mode and the battery provides d-c power to the load. The operation of the down converter if it is included in the system is inhibited.
431734
Reliance Electric Company
Ridout & Maybee Llp
LandOfFree
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