BANDWIDTH (bandwidth):

Bandwidth is the frequency range over which the voltage gain is attenuated by 3dB, based on the assumption that the power supply can be modeled as an amplifier. Bandwidth is an important determinant of transient response and output impedance.

Bandwidth (Large Signal) Bandwidth (Large Signal)

The frequency at which the output sine wave amplitude of an amplifier or other circuit deviates from linear behavior when producing full output voltage capability (a distortion value of 1% is usually chosen as a starting point). A large signal bandwidth should be expressed as a range of sine wave frequencies. Example: DC to 3khz.

The frequency at which the output sine wave amplitude of an amplifier or other circuit departs from linear behavior (normally a 1% distortion value is chosen as the point of departure) when producing full output voltage capability. The Large Signal Bandwidth should be expressed as a range of sine wave frequencies. Example: DC to 3 kHz.

Bandwidth (Small Signal) Bandwidth (Small Signal)

When the amplitude of the input signal is constant, the amplifier or other circuit outputs a sine wave whose amplitude drops to a frequency of 70% (-3 dB) of the low-frequency value (near DC). Small signal bandwidth should be expressed as a range of sine wave frequencies. Example: DC to 30 kHz.

The frequency at which the output sine wave amplitude of an amplifier or other circuit falls to 70% (-3 dB) of the low frequency value (close to DC) given a constant amplitude input signal. The Small Signal Bandwidth should be expressed as a range of sine wave frequencies. Example: DC to 30 kHz.

BASEPLATE TEMPERATURE:

The temperature of the hottest spot on the power supply mounting platform.

BEAD (magnetic beads):

A small piece of ferrite often used as the magnetic core for high frequency induction coils.

BEAM SUPPLY:

A power source that provides acceleration energy to electrons or ions.

BENCH POWER SUPPLY (desktop power supply):

Power supply with output controls, instrumentation, terminals and display for use on experimental benches in laboratories.

BIAS SUPPLY (bias power supply):

A voltage source that deviates from the current voltage.

BIFILAR WINDING (double coil):

Two strands of wire are wound in parallel.

BIPOLAR (bipolar):

There are two magnetic poles, polarities, or directions.

BIPOLAR PLATE:

An electrode structure in which positive and negative active materials are located on different sides of a conductive plate.

BIPOLAR POWER SUPPLY (bipolar power supply):

A special power supply that can output positive and negative polarity voltages on one power supply.