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UPD Board: Add series RC to slow-start driver to improve slew rate #20

@glennl

Description

@glennl

There is an improvement to the slow-start circuit that provides better slew rate control. It is implemented by placing a series RC between the Gate and Drain. An example of values could be R=1k, C=0.47uF. Other existing components are unchanged except for possibly changing the existing capacitor to a smaller value, say 10 nF.

The following diagram illustrates this configuration. NB: It is just an example for clarity.
Screenshot from 2023-08-27 12-52-46

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