title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

DC-DC Converters PCB Mount Value-added Type Instruction Manual4 Series/ParallelOperation4.1 Series Operation!You can use the power supplies in series operation by wiring asshown below. In the case of (a) below, the output current shouldbe lower than the rated current for each power supply with thelowest rated current among power supplies that are serially connected.Please make sure that no current exceeding the ratedcurrent fl ows into a power supply.(a)PowerSupply+-Load5 TemperatureMeasuring Point5.1 STMGFS15/STMGFW15!In case of forced air cooling, please have suffi cient ventilation tokeep the temperature of point A in Fig.5.1 at 105C or below.Please also make sure that the ambient temperature does not exceedthe range shown in“Derating”.*Specifi cations for ripple and ripple noise changese in the shadedarea.Point A(A center point of DC-DCconverter case.)PowerSupply+-(b)PowerSupply+-LoadFig.5.1 STMGFS15/STMGFW15 Temperature Measuring Point5.2 STMGFS30/STMGFW30PowerSupply4.2 Parallel Operation+-Fig.4.1 Series Operation!Parallel operation is not possible.!You can use the power supplies in redundancy operation by wiringas shown below.Load!In case of forced air cooling, please have suffi cient ventilation tokeep the temperature of point A in Fig.5.2 at 110C or below.Please also make sure that the ambient temperature does not exceedthe range shown in“Derating”.*Specifi cations for ripple and ripple noise changese in the shadedarea.Point A(A center point of DC-DCconverter case.)PowerSupply+-I1I3PowerSupply+-I2LoadFig.5.2 STMGFS30/STMGFW30 Temperature Measuring PointFig.4.2 Redundancy Operation!Even a slight difference in output voltage can affect the balancebetween the values of I1 and I2.Please make sure that the value of I3 does not exceed the ratedcurrent for each power supply.I3 [ Rated Current ValueSTMG-23