Evaluation and testing of advanced low-voltage power supplies

A distinguishing feature of the LHC detectors is the enormous number of front end electronics channels in all the sub-detectors. Low voltage power supply systems in the range of multi kilowatts are required to bias such electronics. These power supplies will be located in the cavern close to the detector where stray magnetic field and radiation are present. The main advantage of this topology is the reduction of the length cable needed to carry power to the electronics. This paper describes results on electrical and environmental tests performed on sample equipment. Descriptions of the objects and methods of tests are given.