B&K 1651A, 1652 instruction manual

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.

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Fig. 16. Typical Hook-Up Using Different Positive and Negative Voltages and a Separate Common.