The purpose of this document is to define (1) guidelines for Navy and
contractor program managers and (2) design and manufacturing fundamentals for
power supply engineers, that will result in power supplies which meet or exceed
the reliability requirements.
The information contained in Sections 3 and 4 applies
primarily to low-voltage power supplies delivering up to 5 kilowatts and 300
VDC or less. Some topics, such as output power density have been tailored for
power supplies below 1,500 watts and outputs of less than 28 VDC. The unique
requirements of high-voltage power supplies, those whose output voltage
exceeds 300 VDC, are addressed in Section 5
. While these guidelines do not directly address other
power conversion equipment, such as frequency changers, inverters,
uninterruptible power supplies, or static switches, precepts contained herein,
such as component deratings and environmental stress screening, can be applied.
Consideration will have to be given to development schedules, volume and weight,
to take into account the complexities of the other types of equipment.
Modern Navy system requirements dictate that most power supplies in new
equipment be of the switching-mode type. For this reason, the switching-mode
assumption is implicit throughout the document.