MK50 Low Power Mode

[damonkutten]

In our system, we are setting the MK50 into a low power mode every millisecond, to save power. This works fine, but the sudden reduction (and subsequent increase) in power demand is modulating the power supply and causing noise that spreads throughout our system and causes problems for analog measurements. Is there any technique that can be used to slow down entry into low power mode, make the change gradual, or maybe use several smaller steps to reach low power mode, in order to minimize the impact to our power supply?

                   Damon

[kerryzhou]

Hi Damon,

    This problem should consider the solutions from the hardware.

    Did you add the inductance in series with the VDD power line and the according capacitior?

    Please refer to the twr-k53 schematic:

Wish it helps you!

Have a great day,
Kerry

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