ATC210 Dual Series | 210 W DC-DC

11

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Intermediate Bus Converters

File Name: atc210.pdf Rev: 16 Aug 2006

Figure 8: Inrush Current (39.5 V)

Channel 3: Inrush Current;

Channel 4: Voltage Across Inrush Capacitor

Figure 9: Inrush Current (72 V)

Channel 3: Inrush Current;

Channel 4: Voltage Across Inrush Capacitor

Figure 10: Remote Control Turning-on Characteristic.

Vin = 48 Volts, Turning-on into Full Load for 12 Vout and 3.3 Vout

Figure 11: Remote Control Turning-off Characteristic.

Vin = 48 Volts, Turning-off into Full Load for 12 Vout and 3.3 Vout

Figure 12: Typical Transient Response 75-50% and 50-75%

Step Load Change (1 A/µs),

Channel 1: 12 Vout; Channel 3: Iout (12 Vout). Cout = 6000

µ

µF

I_12 Vout

R/C Turn-on

signal

12 Vout

I_12 Vout

R/C Turn-off

signal

12 Vout

V Inrush

Capacitor 82 µF

Inrush Current

V Inrush

Capacitor 82 µF

Inrush Current

‘Starting off’ point gets

lower as input voltage

increases

(Initial step is to charge up capacitance)

12 Vout

75-50%

transient

50-75%

transient

Figure 7: Typical Output Ripple and Noise Measurement

Channel 1: 12 Vout; Channel 2: 3.3 Vout

12 Vout

3.3 Vout