Xantrex Technology XG 850 manual Inductive Loads and Batteries, 2Diode Placement

Step 6: Connecting Loads

Inductive Loads and Batteries

	CAUTION
	The XG power supply requires freewheeling and blocking diodes across the
	output while driving inductive loads or batteries to protect the power supply from
	damage caused by power being fed back into the supply and from high voltage
	transients.	2
Selecting	The diode must have a voltage rating at least 20% greater than the power
Diodes	supply's output voltage and have a current rating greater than or equal to
	the power supply's output rating. Connect the cathode to the positive
	output and the anode to the return.

Where positive load transients such as back EMF from a motor may ocAMPS, connect a Transient Voltage Suppressor (TVS) or a varistor across the output to protect the power supply. The breakdown voltage rating for the TVS or varistor must be approximately 10% higher than the rated supply output.

Figure 2-2Diode Placement

For a detailed Application Note, please go to:

www.programmablepower.com and click SUPPORT.

M370078-01 2-11