AMETEK DCS-E 3kW Series - Manual (Page 93)

M362295-01 Rev C 7-1
SECTION 7
APPLICATION NOTES
7.1 BATTERY CHARGING
When using the DCS-E Series (3kW) power supply to charge a battery, take the following
precautions to prevent damage to the supply and/or the battery in case the overvoltage
protection (OVP) circuit is activated.
•
Select a diode rated to handle the required charging current and voltage. Use the
following table as a reference.
Peak Charging Current Maximum Voltage Diode Type
250-350A 40V Two (2) parallel MBR30045CT
60-249A 40V One (1) MBR30045CT
25-59A 100V One (1) MUR7015
10-24A 300V One (1) MUR3040PT
5-9A 500V One (1) MUR1560
<5A 600V One (1) MUR758
• Connect the diode in series with either supply output to prevent the battery from
discharging through the internal OVP crowbar transistor. The diode must be mounted
on a suitably-rated heatsink to prevent its case temperature from exceeding the
manufacturer's maximum limits.
7.2 LOAD CONSIDERATIONS
Properly rated diodes should be used to protect the power supply from damage while
driving inductive loads.
7.2.1 Inductive Loads
To prevent damage to the power supply from inductive kickback, connect a diode (rated
at greater than the supply’s output voltage and current) across the output.