B&K Precision 1651A - Manual - Manual (Page 40)

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APPLICATIONS_______________________________________________________________________________________
Differing Positive and Negative Voltages With a
Separate Common (Refer To Fig. 16)
Using both supplies in the independent mode of operation,
different positive and negative voltages with a separate
common are obtained as follows:
1. Select the INDEPENDENT operating mode and set the
A/B Metering switch to monitor the “A” supply.
2. Set the desired voltage and maximum current on the “A”
supply using the “A” VOLTAGE and CURRENT
controls.
3. Set the A/B Metering switch to monitor the “B” supply.
4. Set the desired voltage and maximum current on the “B”
supply using the “B” VOLTAGE and CURRENT
controls.
5. Connect one ground wire between the negative terminal
of the “A” supply to the positive terminal of the “B”
supply and another ground wire between the positive
terminal of the “B” supply and the GND (green)
terminal.
6. Turn off the power supply and the equipment to be
powered during hook-up.
7. Connect the positive polarity input of the circuit to be
powered to the positive (red) terminal of the “A” supply
and connect the negative polarity of the circuit to the
negative terminal of the “B” supply. Connect the circuit
ground to the negative terminal of the “A” supply or the
GND (green) terminal.
Fig. 16. Typical Hook-Up Using Different Positive
and Negative Voltages and a Separate Common.