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TDK-Lambda
CUS150M1
Instruction Manual
4-5. Over Current Protection (OCP)
These products provide the Hiccup mode with automatic recovery. OCP function operates when the output current exceeds 105% of
maximum DC output current of specification. The outputs will be automatically recovered when the overload condition is canceled, however
the outputs may be latched off when shorted condition happens. Never operate the unit under over current or shorted conditions for more than
30seconds, which may leads damage or insulation failure. OCP setting is fixed and not to be adjusted externally.
4-6. Output Ripple & Noise
The standard specification for maximum ripple value is measured according to measurement circuit specified as below. When load lines are
longer, ripple will becomes larger. In this case, electrolytic capacitor, film capacitor, etc. might be necessary to use across the load terminal.
The output ripple cannot be measured accurately if the probe ground lead of oscilloscope is too long.
4-7. Series Operation
For series operation, either method (A) or (B) is possible.
(A)
(B)
(*1)Please select a bypass diode with maximum forward current rating more than output load current. And maximum reverse voltage must
withstand each power supply output voltage.
4-8. Parallel Operation
For parallel operation, method (B) is possible
Load
Output
Terminal
Output
Terminal
Load
Output
Terminal
Output
Terminal
(B) To use as Back-up Power Supply
1. Adjust the output voltage of each power supply to be the same.
2. Set power supply output voltage higher by the forward voltage
drop (Vf) of diode.
Use within the specification for output voltage and output power.
(A) To increase the output current is not possible.
Power Supply
Power Supply
