PS280 & PS283 User Manual
1
Getting Started
The Tektronix PS280 or PS283 Laboratory DC Power Supply is a
multifunction bench or portable instrument. This regulated power
supply provides a fixed 5 V output for powering logic circuits and
two variable outputs for a wide variety of test and experimental uses.
The PS280 or PS283 contains two identical, independently adjustable
DC power supplies that you can vary from 0 to 30 V. The current on
the PS280 variable power supplies varies from 0 to 2 A. The current
on the PS283 variable power supplies varies from 0 to 1 A. In all
other respects the instruments are identical. Unless otherwise noted,
descriptions and procedures in this manual apply to both instruments.
Front panel switches select one of three modes of operation:
H Independent — In this mode, the output voltage and current of
each supply can be controlled independently.
H Series — In this tracking mode, the variable outputs are
connected in series, and the controls of the master power supply
adjust the voltages or currents of both power supplies. Series
mode allows the power supplies to be varied from 0 to 60 V at 0
to 2 A for the PS280, or 0 to 1 A for the PS283.
H Parallel — In this tracking mode, the variable outputs are
connected in parallel, and the controls of the master power supply
adjust the voltages or currents of both power supplies. Parallel
mode allows the power supplies to be varied from 0 to 4 A for the
PS280 at 0 to 30 V, or from 0 to 2 A at 0 to 30 V for the PS283.
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