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Polarity switch for Keysight N6700 power supply

V.Z. and A.S., Helsinki, Dec 2019

Switching DC line polarity using 2-channel latching relay TQ2SA-L2-5V (RSN(699-6269)). Relays are driven by digital port of power supply. External power (5V) is needed, but lutching relays will not switch polarity if it fails. Pin 8 is used to check power, pins 0..7 can be used for switching channels 1..4 (two pins per channel).

TCL code. This switch is supported by DeviceRole library (see r_power_supply.tcl).

QUCS schematics.

DXF(relay)