Bandwidth Â Â A range of frequencies over which a certain phenomenon is to be considered.
Basic Insulation Â Â The insulation applied to live parts to provide basic protection against electric shock. Does not necessarily include insulation used exclusively for functional purposes.
Battery Backup Â Â A power supply system where if the ac line fails, a battery will provide input energy to keep the dc outputs from failing. Refer to Application Notes section for further details.
Blackout Â Â A total loss of electrical power.
Bridge Converter Â Â A DC to DC converter topology (configuration) employing four active switching components in a bridge configuration across a power transformer.
Brown out Â Â A planned voltage reduction by a utility company to counter excessive demand on their generation and distribution system.
Burn-in Â Â Operating a newly manufactured power supply, usually at rated load, for a period of time in order to force component infant mortality failures or other latent defects before the unit is delivered to a customer.