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R

RATED OUTPUT CURRENT

The maximum load current which a power supply was designed to provide at a specified ambient temperature.

REFLECTED RIPPLE CURRENT

The rms or peak-to-peak AC current generated at the input of the DC/DC converter that is a result of the switching frequency of the converter.

REGULATION

The ability of a power supply to maintain an output voltage within a specified tolerance as referenced to changing conditions of input voltage and/or load.

REMOTE ON/OFF

Enables power supply to be remotely turned on or off. Turn-on is typically performed by open circuit or TTL logic "1", and turn-off by switch closure or TTL logic "0".

RIPPLE AND NOISE

The magnitude of AC voltage on the output of a DC/DC converters expressed in millivolts peak-to-peak or RMS, at a specified band width. DC/DC converters output noise usually has two components: a frequency component at the switching frequency of the converter and a high frequency component due to fast edges of the converter switching transitions. Noise should always be measured directly at the output terminals with a scope probe having an extremely short grounding lead.

S

SECONDARY

The output section of an isolated DC/DC converter.

Short-Circuit Input Current

The maximum input current that a converter will source with its output shorted.

STANDBY CURRENT

The input current drawn by a power supply when shut down by a control input (remote 0n/0ff).

STORAGE TEMPERATURE

The range of ambient temperatures within which a power supply may be safely stored, non-operating, with no degradation in its subsequent operation.

SWITCHING FREQUENCY

The rate at which the DC voltage is switched on and off in a DC/DC converter.

T

TEMPERATURE COEFFICIENT

The average percent change in output voltage per degree centigrade change in ambient temperature over a specified temperature range.

TRANSIENT RECOVERY TIME

The time required for the output voltage of a power supply to settle within specified output accuracy limits following a step change in output load current or a step change in input voltage.

U

UNIT WEIGHT

This is the weight of the converter in gram.

V

VOLTAGE BALANCE

The difference in magnitudes, in percent, between the two output voltages of a dual output power supply where the voltages have equal nominal values with opposite polarities.

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