The Keysight 6645A (Agilent) is one of the 664x series of 200 Watt, single output, series pass regulated power supplies, with an internal GPIB interface and SCPI programming.  These models provide many talker/listener functions including remote programming of voltage and current with feedback of actual measured output values. 16 supplies can be connected to one GPIB interface via a serial link connection.

Other features and specifications include:

●Line Regulation GPIB – 0.25 mA

●Load Regulation V/C 5 mV – 0.25 mA

●Output: Single

●Auto-parallel up to three units

●Outputs can be connected in parallel or in series

●Programmable over-voltage and over-current protection

●Over-temperature protectionDiscrete Fault Indicator/Remote Inhibit (DFI/RI)

●Self-test occurs at power-on from an GPIB command

●User definable power-on state

●VXI plug & play drivers