title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

AC-DC Power Supplies Bus Converter?Power Module TypeInstruction Manual2 Function2.1 Overcurrent protection!The overcurrent protection circuit is not built-in.2.2 Overvoltage protection!The overvoltage protection circuit is built-in. The AC input shouldbe shut down if overvoltage protection is in operation. The minimuminterval of AC recycling for recovery is a few minutes whichoutput voltage drops below 20V.When this function operates, the power factor corrector functiondoes not operate, and output voltage becomes the full-wave rectified AC input voltage.Remarks:Please note that the unit's internal components may be damagedif excessive voltage(over rated voltage) is applied to output terminalof power supply. This could happen when the customer teststhe overvoltage performance of the unit.2.3 Thermal protection!Thermal protection circuit is built-in and it operates at 100±15C.If this function comes into effect, shut down the output, eliminateall possible causes of overheating, and drop the temperature tonormal level. To prevent the unit from overheating, avoid using theunit in a dusty, poorly ventilated environment.When this function operates, the power factor corrector functiondoes not operate, and output voltage becomes the full-wave rectified AC input voltage.2.4 Auxiliary power supply circuit for externalsignal(AUX)!The AUX pin can be used as the power source with the open collectoroutput(output voltage DC 6.5 - 8.5V, maximum output current10mA) for lOG and ENA.!When used with AUX pin of additional units of this model for parallelconnection, make sure to install a diode and that the maximumoutput current must be below 10mA.!Never let a short circuit occur between the AUX pin and otherpins. It may damage the unit.2.5 Inverter operation monitor(IOG)!Use IOG to monitor operation of the inverter.When unit operation stopped due to overvoltage protection, thermalprotection or the event of a failure in the power supply, IOGsignal state changes to”H”from”L”within 1 second. And outputvoltage becomes an equal value to the full-wave rectifi ed AC inputvoltage.If IOG signal status keeps”H”, there is a possibility that unit and/orexternal circuit is damaged. In case like this, please check the unitand/or external circuit conditions in your system.!IOG can be used for monitoring failures such as redundant operation.!IOG may become unstable in case of start-up or sudden changeof load current. Set the timer with delay of more than 5 seconds.!During parallel operation, unstable condition may occur when loadcurrent becomes lower than 10% of rated value.2.6 Enable signal (ENA)!Use ENA to control starting of the loaded power supply.!When inrush current protection circuit is released, ENA outputs”LOW”.!If load current flows without releasing of the circuit, the resistormay be burnt.Table 2.1 Specifi cation of TMP, IOGNo.ItemIOGENA1Function2Base pin-VOUT3Level voltage”L”0.6V max at 10mA4Level voltage”H”Open collector5Maximum sink current10mA max6Maximum applied voltage35V max2.7 Isolation!For a receiving inspection, such as Hi-Pot test, gradually increase(decrease) the voltage for a start(shut down). Avoid using Hi-Pottester with the timer because it may generate voltage a few timeshigher than the applied voltage, at ON/OFF of a timer.3 Series and ParallelOperation3.1 Series operation!As input and output are not insulated, series operation is impossible.DPF-8