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COSEL Power Supply, Noise Filter 2025 Product Catalog
DC-DC Converters PCB Mount TypeInstruction Manual3 Series/ParallelOperation3.1 Series Operation!Series operation is available by connecting the outputs of two ormore power supplies, as shown below. Output current in seriesconnection should be lower than the lowest rated current in eachunit.(a)PowerSupplyPowerSupply+-+-Load(b)PowerSupplyPowerSupplyFig.3.1 Examples of series operation3.2 Redundancy Operation!Parallel operation is not possible.!Redundancy operation is available by wiring as shown below.PowerSupplyPowerSupply+-+-I1I2Fig.3.2 Redundancy operation!Even a slight difference in output voltage can affect the balancebetween the values of I1 and I2. Please make sure that the valueof I3 does not exceed the rated current for each power supply.+-+-I3I3 [ Rated Current ValueLoadLoadLoadInput Current [A]IpInput Voltage [V]Input Voltage RangeFig.4.1 Input Current CharacteristicsF5 Cleaning!If you need to clean the unit, please clean it under the followingconditions.Cleaning Method: lmmersion, Ultrasonic or Vapor CleaningCleaning agent: IPA (Solvent type)Cleaning Time: Within total 2 minutes for lmmersion, ultrasonicand vapor cleaning!Please dry the unit suffi ciently after cleaning.!If you do ultrasonic cleaning, please keep the ultrasonic output at15W/L or below.6 Safety Standards!To apply for a safety standard approval using the power supply,please meet the following conditions. Please contact us for details.?Please use the unit as a component of an end device.?The area between the input and the output of the unit is isolatedfunctionally. Depending upon the input voltage, basic insulation,dual insulation or reinforced insulation may be needed. In suchcase, please take care of it within the structure of your end-device.Please contact us for details.?Safety approved fuse must be externally installed on input side.4 Input Voltage/Current Range!If you use a non-regulated power source for input, please checkand make sure that its voltage fl uctuation range and ripple voltagedo not exceed the input voltage range shown in specifi cations.!Please select an input power source with enough capacity, takinginto consideration of the start-up current (Ip), which fl ows when aDC-DC converter starts up.MUS . MUW-25
