title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

AC-DC Power Supplies Medical TypeInstruction Manual1.8 Isolation!For a receiving inspection, such as Hi-Pot test, gradually increase(decrease) the voltage for the start (shut down). Avoid using Hi-Pot tester with the timer because it may generate voltage a fewtimes higher than the applied voltage, at ON/OFF of a timer.!When you test a unit for isolation between the input and output,input and the terminal FG or between the output and the terminalFG, short-circuit between the output and the terminals RCG andAUXG.2 Series Operation andParallel Operation2.1 Series Operation!Series operation is available by connecting the outputs of two ormore power supplies with the same output voltage, as shown below.Output current in series connection should be lower than thelowest rated current in each unit.Remarks :Please be sure to have enough cooling in case one of the powersupply stops due to activation of the protection circuitry.In case of malfunction (Failure of protection circuit activation),please stop the operation and replace the failed power supply.Power +Supply -Power +Supply -LoadPower +Supply -Power +Supply -Fig.2.1 Examples of connecting in series operation2.2 Parallel Operation!Parallel operation is not possible.!Redundancy operation is available by wiring as shown below.PowerSupplyPowerSupply+-+-I1I2I3LoadLoadLoad3 TemperatureMeasurement Point!For proper operation of the power supply, please note the following:-The temperature rise and heat dissipation of the converter mustbe considered.-Conditions vary with environment and input voltage.-Mounting surface will be very hot during operation, so please becareful not to touch the surface.!For reliable and safe operation, please make sure the maximumcomponent temperatures rise given in table 3.1 is not exceeded.Please refer to Fig.3.2 for recommended cooling condition.Operating at the maximum temperature rating results in 3-Years lifeexpectancy. The actual life expectancy can be extended by reducingthe ambient temperature. Please refer to section 5 for moreinformation.!Test Measuring pointsBe aware of the conductive parts during the measurements.Please contact us for more detail.1 2 3 4Point75 6TR102Fig.3.1 Temperature measurement points locationsTable 3.1 Maximum operating temperatureParts nameSymbolNo.Maximumtemperature[C]TR501Remarks1Line FilterL1011002Input CapacitorC114893TransformerT2011004Output CapacitorC516945TransistorTR102110case temperature6RectifierTR501110case temperature7TransformerT30180Applicable when -R3Fig.2.2 Example of 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 of a power supply.I3 [ the rated current value!Hot-swap or Hot-plug is not available.GMA-8