8 Service and Maintenance
226 E364xA User’s and Service Guide
CC PARD (ripple and noise)
Periodic and random deviations (PARD) in the output (ripple and noise) combine
to produce a residual AC current, as well as an AC voltage superimposed on the
DC output. CC PARD is specified as the rms output current in a frequency range of
20 Hz to 20 MHz with the power supply in the constant current operation.
Figure 8-6 CC PARD (ripple and noise) connections
For better measurement results, it is recommended to make the connection
between the BNC receptacle and the output terminals as short as possible, and
to use the recommended split ferrites with the BNC-to-BNC cable as shown in
Figure 8-6.
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