User Manual

P A G E 12
mikromedia 7 CAPACITIVE U S E R M A N U A L
P A G E 12
mikromedia 7
CAPACITIVE
U S E R M A N U A L
2. Power supply unit
The power supply unit (PSU) provides clean and regulated
power, necessary for proper operation of the mikromedia 7
development board. The host MCU, along with the rest of
the peripherals, demands regulated and noise-free power
supply. Therefore, PSU is carefully designed to regulate,
filter, and distribute the power to all parts of mikromedia 7.
It is equipped with four different power supply inputs,
offering all the flexibility that mikromedia 7 needs, especially
when used on the field or as an integrated element of a
larger system. In the case when multiple power sources are
used, an automatic power switching circuit with predefined
priorities ensures that the most appropriate will be used.
The PSU also contains a reliable and safe battery charging circuit,
which allows a single-cell Li-Po/Li-Ion battery to be charged.
Power OR-ing option is also supported providing uninterrupted
power supply (UPS) functionality when an external or USB power
source is used in combination with the battery.
Figure 3: Power supply unit view
mikromedia 7 CAPACITIVE U S E R M A N U A L