AMETEK DCS-E 3kW Series - Manual (Page 94)

Application Notes Sorensen DCS-E Series 3kW Supplies
7-2 M362295-01 Rev C
It is recommended that diode and cathode connections be made as follows:
• Connect a blocking diode in series with the output to protect the power supply.
• Connect cathode of the freewheeling diode to the cathode of the blocking diode and the
anode to return.
B LOCKING AND F REE W HEELING D IODES
The Peak Reverse Voltage ratings should be a minimum of 2-3 times the Power Supply
maximum output voltage. The Continuous Forward Current ratings should be a
minimum of 1.5 times the Power Supply maximum output current. Heatsink may be
required. There also may be a need for higher voltage rated parts, dependent on load
circuit design and inductor values.
Figure 7-1. Diode Connection
Customer Application Notes:
When positive sense is connected to anode of Blocking Diode (as shown in Figure
7-1 ), voltage applied to the customer load will be lower than the output of the power
supply due to the forward voltage drop of the diode.
When load regulation is required, the positive sense can be connected directly to
the load, but the battery may discharge thru the sense leads, causing damage to
the power supply.