we want to use further DC/DC converter in parallel. The converter are controlled by ADP1055.
Reading the ADP datasheet I see different ways for load sharing. Please can you confirm my understanding?
-Way 1: using DROOP SHARING. Here a virtual output resistor is implemented in the control. No need of any connection between the converters (exept power lines), but the output voltage dépends of the load.
-Way 2: using ISHARE with low pass filter (analog signal). I think this method requires externals AOP to compare signal and drive the voltage VS. The schematic show in figure 57 seems to be incomplete.
-Way 3: using ISHARE digitally. Require only 1 connection between converters. The output voltage is constant (vs load).
In the Way 3 is it possible that the output voltage command are not exatly the same between converters (the Ishare will compensate)?
Other question: I worry about using ISHARE (way 3) for futher converter with long lines (about 1 meter long) in a noisy environement. Could AD advice me a buffer or transceiver to improve signal immunity?