- Apparent Power:
- The product of RMS
voltage and RMS current.
- Brownout:
- A drop or sag of the
input voltage below a converter's rated input range.
- Current Limit:
- The point where the
operation of a converter changes from constant voltage
mode to constant current mode.
- Current Sharing:
- Equal division of the
total load current between two or more modules.
- Efficiency:
- The ratio of output
power divided by input power, expressed as a percentage.
- Fault Tolerance:
- The capability of a
power supply system to sustain one or more faults
without degrading the power to the load.
- Input Overvoltage:
- An increase or surge of
the input voltage above a converter's rated input range.
- Input Reflected
Ripple:
- The AC component of the
input current of a converter resulting from the
converter's operation (high frequency switching),
expressed as a percentage of the DC component.
- Input Ripple
Rejection:
- The attenuation of AC
ripple a converter provides from its input to its
output, expressed in dB.
- Inrush Charge:
- The amount of charge,
in Coulombs, that will flow into a converter upon
application of nominal input voltage.
- Isolation Voltage:
- The voltage that can be
applied between related circuits of a device without
voltage break down occurring in the insulation between
them.
- Line Regulation:
- The change in a
converter's output voltage resulting from a predefined
change in the input voltage, expressed as a percentage
of the output voltage.
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- Load Regulation:
- The change in a
converter's output voltage resulting from a predefined
change in the load current, expressed as a percentage of
the output voltage.
- Minimum Load:
- The minimum load
current required for a converter to operate within
specification.
- Non-Shutdown Over
Voltage Protection:
- The feature of a
converter to continue supplying voltage to a load at a
prescribed upper limit without shutting down and without
requiring reset when the event causing the over voltage
condition is over.
- Output Current
Rating:
- The maximum current at
which a converter will operate reliably and within its
specifications.
- Power Factor:
- The ratio of true input
power to apparent input power in an AC input system.
- Redundancy:
- The connection of
multiple converters to provide uninterrupted power to
the load in the event of a converter failure.
- Remote Sense
Compensation:
- The amount of voltage
drop that a converter can compensate for between the
output of the converter and the sense point on the load.
- Short-Circuit
Current:
- The maximum output
current that a converter will source with its output
shorted, expressed as a percentage of the rated current.
- Thermal Protection:
- The feature of a
converter to protect itself, usually by shutting down,
when its internal temperature reaches a prescribed
maximum safe level.
- Transient Response:
- The response of a
converter's output voltage to a defined, abrupt change
in either the output current or the input voltage.
- Turn-on Time:
- The time a converter
takes to begin operating within specification after
proper power has been applied.
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