Chopper assisted uninterruptible power supply
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorTakao Kawabata
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Abstract
A bilateral chopper is used between an inverter and the standby battery of an uninterruptible power supply, the battery being charged through rectification of the AC power by the feedback diodes of the inverter under controlled voltage by the chopper, the load being supplied with AC power under controlled voltage by the chopper from the standby battery in case of failure of the AC power supply.
Claims8
In an uninterruptible power supply (UPS) for supplying AC power to a load from an AC power supply and for supplying energy to a standby battery with energy converted through an inverter from the AC power supply in anticipation of a failure in the AC power supply, the combination of:
- bilateral chopper means connected between said inverter and said battery for providing energy conversion in both directions between said battery and said inverter.
Dependencies are inferred from the claim text.