UPS device with passive balance
A balanced, converter technology, applied in the field of converters, which can solve problems such as unbalanced voltage and current, lack of resistance to faults, etc.
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[0033] figure 1 A diagram of an AC / DC converter 100 according to an embodiment is shown. More complicatedly, figure 1Split DC link 130 is shown including DC capacitor 108 and DC capacitor 109 including three electrolytic capacitors connected in parallel between positive line 120 and flow midpoint 122, and DC capacitor 109 correspondingly including a parallel connection Three electrolytic capacitors between negative line 121 and flow midpoint 122. figure 1 Further shown is an AC precharge circuit 140 comprising three phase diode bridges 106 , 107 with series current limiting resistors 104 and AC input junction contacts or relays 102 . also, figure 1 Resistor circuit 110 is shown including resistor 111 and contact 113 in series and parallel with capacitor 108 , and resistor 112 and contact 114 in series and parallel with capacitor 109 . The two contacts 113, 114 drawn may be the two contacts of the same switch 115 to prevent accidental insertion of parallel resistors on a si...
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