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 ManualDHS50DHS100+VoutTRM-VoutFig. 3.5 Connecting External Devices (DHS50, DHS100)Table 3.2 Recommended Values of External Resistors (DHS50, DHS100)OutputAdjustable RangeNo.VOUT±5%VOUT±10%VoltageR1 R2 R1 R213.3V5.1kW3.3kW25V12kW8.2kW3 12V 15kW 10kW3.3kW4 15V 22kW 15kW2.2kW524V39kW27kW628V47kW33kW?DHS200, DHS250OutputExternal ResistorR11External VR1Load32 5kWExternal ResistorR2(1) Output voltage adjusting!Output voltage can be adjusted by connecting an external potentiometer(VR1) and resistors (R1 and R2) as shown in Fig. 3.6.Output voltage will increase if the resistance between 1 and 2 isreduced by turning the potentiometer clockwise.Recommended values for external components are shown inTable 3.3.Consult us if the power module is used in a different confi guration.DHS200DHS250ControlAmp. ofrated voltage-+RA3kW3kWRB2.495VRC10W+VOUT-VOUTFig. 3.6 Connecting External Parts (DHS250)Table 3.3 Recommended Values of External Resistors (DHS250)OutputAdjustable RangeNo.VOUT±5%VOUT±10%VoltageR1 R2 R1 R213.3V2.4kW2.4kW25V5.6kW5.6kW37.5V10kW10kW4 12V 18kW 18kW12kW5 15V 24kW 24kW8.2kW624V43kW43kW728V47kW47kW848V91kW91kW+STRM 2-SR2R11VR15kW3(2) Output voltage decreasing!By connecting the external resistor (RD), output voltage becomesadjustable to decrease.The external resistor (RD) is calculated the following equation.DHS200DHS250+VOUT+STRM-S-VOUT(3) Output voltage increasing!By connecting the external resistor (RU), output voltage becomesadjustable to increase.The external resistor (RU) is calculated the following equation.+VOUT+STRM-S-VOUTRDFig. 3.7 Connection for output voltage decreasing (DHS200/250)DHS200DHS250RUFig. 3.8 Connection for output voltage increasing (DHS200/250)3.7 Withstanding Voltage / Isolation Voltage!When testing the withstanding voltage, make sure the voltage isincreased gradually. When turning off, reduce the voltage graduallyby using the dial of the hi-pot tester. Do not use a voltage testerwith a timer as it may generate voltage several times as large asthe applied voltage.4 Series and ParallelOperation4.1 Series operationVOD1.51X - 0.01VORRD=[kW]VOD1.0-VORVOR :Rated output voltage[V]VOD :Output voltage needed to set up[V]VORRU= [3.0X - 1.51 ] X + 0.01Vref VORVOU- 1.0VORVOUVOR :Rated output voltage [V]VOU :Output voltage needed to set up [V]Vref :Refarence voltage [V]Vref=2.495 [V]!Series operation is available by connecting the outputs of two ormore power supplies, as shown below. Output current in seriesconnection should be lower than the lowest rated current in eachunit.DHS-21