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for the electronic load in the following tests:
CV Source Effect (Line Regulation)
CC Load Effect (Load Regulation)
Temperature Coefficient (6015A)
Drift (stability ) (6015A)
You may substitute:
40Ω 1000W load resistor (6010A)
0.058Ω 1000W load resistor (6011A)
3.4Ω 1000W load resistor (6012B)
40Ω 1000W load resistor (6015A)
in these tests:
CV Load Effect (Load Regulation)
CV PARD (Ripple and Noise)
CC Source Effect (Line Regulation)
CC PARD (Ripple and Noise)
The substitution of the load resistor requires adding a load switch to open and short the load in the CC or CV load
regulation tests. The load transient recovery time test procedure is not amenable to modification for use with load resistors.
An electronic load is considerably easier to use than a load resistor. It eliminates the need for connecting resistors or
rheostats in parallel to handle the power, it is much more stable than a carbon-pile load, and it makes easy work of
switching between load conditions as is required for the load regulation and load transient-response tests.
Current-Monitoring Resistor Rm. To eliminate output current measurement error caused by voltage drops in the leads
and connections, connect the current-monitoring resistor between -OUT and the load as a four-terminal device. Figure 2-2
shows correct connections. Select a resistor with stable characteristics:
0.010, 0.02% accuracy, 30 ppm/°C (6010A)
0.0005Ω, 0.05% accuracy, 30ppm/°C (6011A)
0.0010Ω, 0.05% accuracy, 30ppm/°C (6012B)
0.010Ω, 0.02% accuracy, 30ppm/°C (6015A)
or lower temperature coefficient and a current rating of:
17A (6010A).
120A (6011A).
50A (6012B)
>5A (6015A)
Figure 2-2. Current-Monitoring Resistor Setup