초록 ▼

An uninterruptible power supply is disclosed in which the backup energy source is connected to the power supply of the protected computer by means of a bi-directional power converter. This converter operates without sensing circuitry, relays, or switches, operating continuously when a load is presen

An uninterruptible power supply is disclosed in which the backup energy source is connected to the power supply of the protected computer by means of a bi-directional power converter. This converter operates without sensing circuitry, relays, or switches, operating continuously when a load is present in either charging or discharging the backup energy source. This uninterruptible power supply can be placed within the available space of a functioning standard computer power supply enclosure, and may be configured so that it may be replaced during normal computer operation (i.e. it is "hot swappable"). Methods are described to interface the uninterruptible power supply to the computer, providing mutual control and communication. The device may be also used to power devices requiring external DC power, which are commonly found in association with computer operations.

대표청구항 ▼

[ What is claimed is:] [1.] An uninterruptible power supply for a source of DC power comprising:(a) a restorable source of stored energy wherein the energy may be released and restored in DC electrical form; and(b) a bi-directional converter including a transformer device having a turns ratio, and a

[ What is claimed is:] [1.] An uninterruptible power supply for a source of DC power comprising:(a) a restorable source of stored energy wherein the energy may be released and restored in DC electrical form; and(b) a bi-directional converter including a transformer device having a turns ratio, and a plurality of switch devices that change between open and closed states to couple the stored energy source to the DC power source, wherein the power converter continuously operates, directing energy either toward the source of DC power from the source of stored energy or toward the source of stored energy from the source of DC power, wherein the direction of electrical energy flow depends upon the deviation of the ratio of the potential of the source of DC power and the potential of the source of stored energy from a predetermined ratio that is related to said turns ratio, and in which the direction of DC electrical energy is independent of said states of said switch devices.