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Reference
22
PS280 & PS283 User Manual
NOTE. In series tracking mode, the current flowing through the two
supplies must be equal. Therefore, the maximum current limit is the
lower of the values set by the two current control knobs.
7. Turn on the POWER to the PS280 or PS283.
8. Adjust the output voltage to the desired level using the master
VOLTAGE knob.
9. Turn the POWER off to the PS280 or PS283 again.
10. Connect the device or devices to be tested.
11. Turn on the POWER to the PS280 or PS283 again. Readjust the
voltages if necessary.
NOTE. The 5 V FIXED supply can be independently grounded or
allowed to float.
Parallel. In parallel tracking mode, the positive output terminals of
both variable power supplies are internally connected, and the
negative output terminals of both variable power supplies are
internally connected. These connections allow the PS280 or PS283 to
produce 0 to 30 V at 0 to 4 A (0 to 2 A for the PS283).
When you place the PS280 or PS283 in parallel mode, the output
terminals are hooked together internally as shown in Figure 13.
The master power supply’s VOLTAGE and the CURRENT knobs
control the voltage and current for both variable power supplies.