title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

DC-DC Converters Bus Converter . Power Module TypeInstruction Manual1 Connection forStandard Use!In order to use the power supply, it is necessary to wire as shownin Fig.1.1 and external components in table1.1.!Short the following pins to turn on the power module.-VINRC, +VOUT+S, and -VOUT-S (DHS200/250)Reference: 3.4”Remote ON/OFF”3.5”Remote sensing”!The DHS Series handles only the DC input.Avoid applying AC input directly.It will damage the power supply.!Operate with the conduction cooling(e.g. heat radiation from thealuminum base plate to the attached heat sink).Reference:”Derating”DCinputF1NoisefilterCYHeatsink+SCin+VIN +VOUT+Co Load-VIN-VOUTRCFG-S+S, -S : DHS200/250Fig.1.1 Connection for Standard UseTable 1.1 External componentsNo.SymbolcomponentReference1F1Input fuse3.1 (1)”External fuse”2CYPrimary decoupling capacitor 3.1 (2)”Noise fi lter/3-Noise fi lterDecoupling capacitor”4CinExternal capacitor on the input side 3.1 (3)”External capacitor on the input side”5CoExternal capacitor on the output side 3.2”Wiring output pin”6-Heatsink”Option parts”*Refer to our website.(2) Noise fi lter/Decoupling capacitor!Install an external noise filter and a decoupling capacitor CY forlow line-noise and for stable operation of the power supply.!Install a correspondence fi lter, if a noise standard meeting is requiredor if the surge voltage may be applied to the unit.!Install a primary decoupling capacitor CY, with more than 470pF,near the input pins(within 50mm from the pins).!When the total capacitance of the primary decoupling capacitor ismore than 8800pF, the nominal value in the specifi cation may notbe met by the Hi-Pot test between input and output.In this case, it is that a capacitor should be installed between outputand FG.(3) External capacitor on the Input side.!Install an external capacitor Cin between +VIN and -VIN input pinsfor low line-noise and for stable operation of the power supply.DHS50A/100A : more than 22 F *DHS200A : more than 47 F *DHS50B/100B/250B : more than 0.1 F*When the line inductance is high or ambient temperature islower than -20C, please increase Cin value more than thevalue indicated above.!When the line impedance is high or the input voltage rise quicklyat start-up(less than 10 s), install a capacitor Cin between +VINand -VIN input pins(within 50mm from pins).DHS50B/100B : more than 10 FDHS250B : more than 22 F(4) Input voltage range/Input current range!The specifi cation of input ripple voltage is shown as below.Ripple voltage DHS50A/100A/200A : less than 10Vp-pDHS50B/100B/250B : less than 20Vp-p!Make sure that the voltage fl uctuation, including the ripple voltage,will not exceed the input voltage range.!Use a front end unit with enough power, considering the start-upcurrent Ip of this unit.2 Wiring Input/Output Pin2.1 Wiring input pin(1) External fuseInput voltage [V]RipplevoltageInput voltage range!Fuse is not built-in on input side. In order to protect the unit, installthe normal blow type fuse on input side.!When the input voltage from a front end unit is supplied to multipleunits, install the normal blow type fuse in each unit.Table 2.1 Recommended fuses (Normal-blow type)ModelDHS50A/DHS100ADHS200ARated current3.15A5AModelDHS50B/DHS100BDHS250BRated current1.6A3.15AInput current [A]timeFig.2.1 Input voltage ripplelpInput voltage rangetInput voltage [V]DHS-18Fig.2.2 Input current characteristics