I'm using E3645A power supply as a source of DC current.
In my measurement assebly I have to switch the polarity of current source. I have two 2-position switches for this (for "low" and "high" power outputs). During switching there is a little moment when "High" and "Low" outputs are shorted.
Can I damage power supply by short circuit?
Can I reverse the polarity programmatically within the E3645A without a need of external switches?
Regards
In my measurement assebly I have to switch the polarity of current source. I have two 2-position switches for this (for "low" and "high" power outputs). During switching there is a little moment when "High" and "Low" outputs are shorted.
Can I damage power supply by short circuit?
Can I reverse the polarity programmatically within the E3645A without a need of external switches?
Regards
2) This is a unipolar supply. To "invert" the polarity of the outputs (exchange + Output for the -Output) one must use an external DPDT switch or relay.
Be aware that the output of this instrument has an electrolytic capacitor across its output terminals. Inverting the output terminals with a short applied across the load (or E3645A) can result in large peak currents flowing from this electrolytic cap. These peak currents can "weld" the DPDT/relay if care is not exercised in its selection.
Regards