IanP said:A substantial capacitor may work, and this will be the matter of some tests, but you should consider implementing a rechargable (NIMH, for example) battery to support motor driver for the required period of time ..
Capacitors are not very good in supporting mechanical devices such as motors, solenoids etc, and therefore I think the "battery" option will be more reliable ..
Regards,
IanP
IanP said:You can still use the MAX704 to detect low voltage, and program microcontroller to activate P-channel MOSFET or PNP BJT to connect a battery, perform required task, and shut the system down ..
Regards,
IanP
and connect 1st additional diode between Battery<-->Resistor and Circuit ..
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