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 Manual2.2 Wiring output pin!When the CHS series supplies the pulse current for the pulseload, please install a capacitor Co between +VOUT and -VOUTpins.Recommended capacitance of Co is shown in Table 2.2, 2.3.!If output current decreases rapidly, output voltage rises transientlyand the overvoltage protection circuit may operate.In this case, please install a capacitor Co.!Select a high frequency type capacitor. Output ripple and startupwaveform may be infl uenced by ESR-ESL of the capacitor and thewiring impedance.!Make sure that ripple current of Co is than its rating.No.Table 2.2 Recommended capacitance Co(CHS60/CHS80/CHS120/CHS200/CHS30024/CHS380)OutputvoltageCHS60 CHS80 CHS120CHS200/CHS30024/CHS38013.3V0 - 20,000 F0 - 20,000 F0 - 20,000 F0 - 40,000 F25V0 - 10,000 F0 - 10,000 F0 - 10,000 F0 - 20,000 F310V---0 - 2,200 F412V0 - 2,200 F0 - 1,000 F0 - 2,200 F0 - 2,200 F515V--0 - 2,200 F0 - 2,200 F624V--0 - 1,000 F0 - 2,200 F728V---0 - 2,200 F832V---0 - 2,200 F948V---0 - 1,000 FTable 2.3 Recommended capacitance Co(CHS30048/CHS400/CHS500/CHS700)No.OutputCHS40048/CHS30048 CHS40024voltageCHS500CHS700110V0 - 2,200 F-0 - 4,000 F-212V0 - 2,200 F0 - 4,000 F0 - 4,000 F0 - 10,000 F315V0 - 2,200 F0 - 4,000 F0 - 4,000 F-424V0 - 2,200 F0 - 3,300 F0 - 3,300 F-528V0 - 1,000 F0 - 3,300 F0 - 3,300 F-632V0 - 1,000 F0 - 3,300 F0 - 3,300 F-748V0 - 1,000 F0 - 2,200 F0 - 1,000 F-!Ripple and Ripple Noise are measured, as shown in the Fig.2.3.Cin is shown in Table 1.1.DCInputCin+OscilloscopeBW:100MHz+VINRC-VIN+VOUT+S-S-VOUTRC50mmCo1.5m 50WCoaxial cableR=50WC=0.01 FOutput voltageMeasuringboardCo3.3 - 15V 22 F24 - 48V 0.1 FFig.2.3 Measuring method of Ripple and Ripple Noise3 Function3.1 Overcurrent protectionLoad!Over Current Protection (OCP) is built-in and works over 105% ofthe rated current or higher. However, use in an overcurrent situationmust be avoided whenever possible.The output voltage of the power module will recover automaticallywhen the fault causing overcurrent is corrected.When the output voltage drops after OCP works, the power moduleenters a”hiccup mode”where it repeatedly turns on and off ata certain frequency.3.2 Overvoltage protection!The overvoltage protection circuit is built-in. The DC input will beshut down if overvoltage protection is in operation.The output voltage of the power module will recover automaticallywhen the fault causing over voltage is corrected.Remarks :Please avoid applying a voltage exceeding the rated voltage to anoutput pin.Doing so may cause power supply to malfunction or fail. Thiscould happen when the customer tests the overvoltage performanceof the unit.If this is unavoidable, for example, if you need to operate a motor,etc., please install an external diode on the output pin to protectthe unit.3.3 Thermal protection!When the power supply temperature is kept above 120C, thethermal protection will be activated and simultaneously shut downthe output.The output voltage of the power supply will recover automaticallywhen the unit is cool down.CHS-40