Axiomatic Set TheoryEarlier UPS systems were of rotary design based on DC and AC motor/alternator respectively with a battery for back up. With the advent of the thyristor in the 1960s, static converter based equipment UPS appeared. A block diagram of a basicanbsp;...
|Title||:||Axiomatic Set Theory|
|Publisher||:||Newnes - 2011-08-30|