Thanks for the schematic.  That is what I was thinking and will give it=20
a try.

Gordon



On 16-10-13 07:07 PM, IVP wrote:
>> Is there a standard way to handle this to get over the short
>> low voltage period?
>
> Hi Gordon,
>
> I have a couple of PIC-based circuits for driving clock solenoids
> which also have moments of high current demand. To save costs
> I use just a small transformer to charge capacitors from which the
> current dump comes. The recharging of those capacitors depresses
> the PSU for a short time, well below the PIC's minimum Vcc
>
> I tried a resistor + reservoir cap to isolate the PIC from the current
> demand but it wasn't enough. The attached circuit using steering
> diodes works for my application
>
> Joe
>
>
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