BUFFERED D.C. POWER SUPPLY

摘要

PCT No. PCT/DE94/00703 Sec. 371 Date Jan. 11, 1996 Sec. 102(e) Date Jan. 11, 1996 PCT Filed Jun. 21, 1994 PCT Pub. No. WO95/02914 PCT Pub. Date Jan. 26, 1995Power supply system having a buffered intermediate voltage which is supplied by an auxiliary voltage source in the event of failure of a principal voltage source, there being generated from the intermediate voltage by comparison with a threshold value a digital failure signal which both controls the auxiliary voltage source and is used to form a final failure signal.