title: COSEL Power Supply, Noise Filter 2025 Product Catalog

Summary

COSEL Power Supply, Noise Filter 2025 Product Catalog

DC-DC Converters POL TypeInstruction ManualNoise1 Connection for Standard Use!In order to use power supply,it is necessary to wire as shown in Fig1.1.Reference 2 "Wiring Input/Output Pin"8 Temperature of measurement points!Short the following pins to turn on the power supply.Reference 3.3 "Remote Sensing"!Connect resistance to set the output voltage between TRM andGNDReference 3.4 "Adjustment output voltage"!Between input and output is not isolated.!The BRNS series handle only the DC input.Avoid applying AC input directly.It will damaged the power supply.DCinputF1Ci+VINSGNDGND+S+VOUTTRM-S RTRMFig.1.1 Connection for standard useTable 1.1 External partsNo. parts Reference1 F1:Fuse 2.1 (1)External fuseLoad2 Ci:External output capacitor 2.1 (2)External input capacitor3RTRM: Resistance for adjustmentoutput voltage3.4 Adjustable voltage range2 Wiring Input / Output Pin2.1 Wiring input pin(1) External fuse!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.!When the fuse is open, power good signal is not outputed.(2) External capacitor on the input side!Install an external capacitor Cin, between +VIN and GND inputpins for low line-noise and for stable operation of the power supply.Table 2.2 Recommended external input capacitor(Ceramic)ModelBRNS6BRNS12BRNS20Cin22μF×222μF×222μF×3!Cin is within 5mm for pins. Make sure that ripple current of Cin isless than its rating.!When an impedance and inductance level of the input line becomehigher, the input voltage may become unstable.In that case, the input voltage becomes stable by increasing Cin.(3) Recommendation for noise-fi lter!Install an external input fi lter as shown in Fig.2.1 in order to reduceconducted noise. Cin is shown in Table 2.2DCinputF1C1L1CiC1 : 100mFL1 : 0.2mH+VINGNDFig.2.1 Example of Recommended external input fi lter(4) Reverse input voltage protection!Avoid the reverse polarity input voltage. It will damage the powersupply.It is possible to protect the unit from the reverse input voltage byinstalling an external diode as shown in Fig 2.2+VINDC INGNDFig.2.2 Reverse input voltage protection2.2 Wiring output pin!When the BRNS series supplies the pulse current for the pulseload, please install a capacitor Co between +VOUT and GNDpins.Table 2.1 Recommended fuseModelBRNS6BRNS12BRNS20Rated current15A20A40A+ VOUTGNDCoPulseLoadFig.2.3 wiring external output capacitorBRNS-7