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==Introduction==
The concept schematic here described provides some hints about possible implementations of backup power supply for [[LCC USB SSD (DUL)|DUL]] module.
Four different options are shown, based on capcitors or battery. These are briefly described in the following sections.
==Options #1: supercap==
==Options #2: bestcap==
==Options #3: NiMH/NiCd battery==
==Options #4: Li-ion/Li-Po battery==
==Schematics==
http://www.dave.eu/download/restricted/ssd/dul/DUL-EVB-0.9.1.pdf