公开(公告)号：JP2000245075A

公开(公告)日：2000-09-08

申请号：JP2000038999

申请日：2000-02-17

Applicant: LUCENT TECHNOLOGIES INC

Inventor： DENKIN NATHAN MYRON ,  GOLUBCHIK ALEXANDER ,  SINHA BHARAT P

IPC: H02J9/06 ,  H02J1/10

Abstract: PROBLEM TO BE SOLVED: To determine precisely the operational condition of a stand-by power source, by using a feedback signal as a detection signal, which is generated as a function of both a voltage signal outputted from a power source and a voltage signal supplied to load. SOLUTION: Power sources 100, 200 have voltage paths 211, 212 to load 130 and are isolated by distributed resistors Rd21, Rd22 and diodes D21, D22 having an OR (logical OR) function. The level of the voltage against the ground supplied to the load 130 through the path 121 is detected by detection paths 213 (21), 214 (22) connected to the power sources 100, 200. The power source 100 adjusts the level of the voltage between the path 211 through which the power source itself is outputting and the ground, as a function of a difference between the level or the detected voltage supplied through the detection path 213 (21) and a set voltage Vset121. Likewise, the power source 200 adjusts the level of the voltage outputted by the power source itself, as a function of a difference between the level of the detection voltage supplied through the detection path 214 (22) and a set voltage Vset122.

公开(公告)号：CA2298187A1

公开(公告)日：2000-08-17

申请号：CA2298187

申请日：2000-02-07

Applicant: LUCENT TECHNOLOGIES INC

Inventor： DENKIN NATHAN MYRON ,  SINHA BHARAT P ,  GOLUBCHIK ALEXANDER

IPC: H02J9/06 ,  H02J1/10 ,  G05F1/625 ,  H02J9/00

Abstract: The monitoring of regulated redundant power supplies is enhanced by returning to each power supply a feedback (sensed) voltage signal that is indicative of the voltage level that the respective power supply is outputting and the voltage level supplied to a system load. In one embodiment, a feedback signal that is supplied to a power supply as the sensed signal is derived using a voltage divider network across the output of the power supply and the common connection at which the outputs of the power supplies are "Ored" for delivery to the system load. A power supply then regulates its output voltage as a function of the level of the feedback signal and the level of a respective preset signal.