LOAD EFFECT (LOAD REGULATION)
Formerly known as load regulation, load effect is the change in the
LOAD EFFECT TRANSIENT RECOVERY TIME
Sometimes referred to as transient recovery time or transient response time, it is, loosely speaking, the time required for the output voltage of a power supply to return to within a level approximating the normal dc output following a sudden change in load current. More exactly, Load Transient Recovery Time for a CV supply is the time "X" required for the output voltage to recover to, and stay within "Y" millivolts of the nominal output voltage following a "Z" amp step change in load current
TRANSIENT RECOVERY TIME
(1)"Y" is specified separately for each model but is generally of the same order as the load regulation specification.
(2)The nominal output voltage is defined as the dc level halfway between the steady state output voltage before and after the imposed load change.
(3)"Z" is the specified load current change, typically equal to the full load current rating of the
OFF-LINE POWER SUPPLY
A power supply whose input rectifier circuits operate directly from the ac power line, without transformer isolation.
OUTPUT IMPEDANCE OF A POWER SUPPLY
At any frequency of load change, ∆ EOUT/∆ IOUT. Strictly speaking, the definition applies only for a sinusoidal load disturbance, unless the measurement is made at zero frequency (dc). The output impedance of an ideal constant voltage power supply would be zero at all frequencies, while the output impedance for an ideal constant current power supply would be infinite at all frequencies.
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