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D12S300-1 Datasheet(PDF) 9 Page - Delta Electronics, Inc. |
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D12S300-1 Datasheet(HTML) 9 Page - Delta Electronics, Inc. |
9 / 13 page DS_D12S300-1_12282009 9 Output Capacitance There are internal output capacitors on the D12S300-1 series modules. Hence, no external output capacitor is required for stable operation. Reflected Ripple Current and Output Ripple and Noise Measurement The measurement set-up outlined in Figure 30 has been used for both input reflected/ terminal ripple current and output voltage ripple and noise measurements on D12S300-1 series converters. DC-DC Converter 1uF Ceramic Tan 10uF Vin+ Load Ltest Cs Cin Output voltage ripple noise measurement point Input reflected current measurement point Cs=330µF OS-CON cap x 1, Ltest=1µH, Cin=330µF OS-CON cap x 1 Figure 30: Input reflected ripple/ capacitor ripple current and output voltage ripple and noise measurement setup for D12S300-1 FEATURES DESCRIPTIONS (CON.) Voltage Margining Adjustment Output voltage margin adjusting can be implemented in the ND modules by connecting a resistor, Rmargin-up, from the Trim pin to the Ground for margining up the output voltage. Also, the output voltage can be adjusted lower by connecting a resistor, Rmargin-down, from the Trim pin to the voltage source Vt. Figure 29 shows the circuit configuration for output voltage margining adjustment. Figure 29: Circuit configuration for output voltage margining |
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