When your voltage amounts are unstable (ie: power stays on, but the particular voltage degree may differ quite a bit through the 220V typical), then I feel that's the kind of scenario the place an AVR is helpful. all classes and interfaces within the superclass hierarchy (e.g. see Java course https://historyofjudo93704.activablog.com/32986680/the-single-best-strategy-to-use-for-uninterruptible-power-supply-pronunciation