Getting Started 1
E364xA User’s and Service Guide 49
CV regulation
The voltage load regulation specification in Chapter 7 applies at the output
terminals of the power supply. When remote sensing, add 5 mV to this
specification for each 1 V drop between the positive sensing point and (+) output
terminal due to the change in load current. Because the sense leads are part of
the power supply’s feedback path, keep the resistance of the sense leads at or
below 0.5 Ω per lead to maintain the above specified performance.
Output rating
The rated output voltage and current specifications in Chapter 7 apply at the
output terminals of the power supply. With remote sensing, any voltage dropped
in the load leads must be added to the load voltage to calculate the maximum
output voltage. The performance specifications are not guaranteed when the
maximum output voltage is exceeded. If the excessive demand on the power
supply forces the power supply to lose regulation, the Unreg annunciator will turn
on to indicate that the output is unregulated.
Output noise
Any noise picked up on the sense leads also appears at the output of the power
supply and may adversely affect the voltage load regulation. Twist the sense leads
to minimize external noise pickup and run them parallel and close to the load
leads. In noisy environments, it may be necessary to shield the sense leads.
Ground the shield at the power supply end only. Do not use the shield as one of
the sense conductors.
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