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Torex LDO Power Management Board
Product Description
The Torex Power Management Board uses a low leakage single phase diode bridge to rectify an
AC voltage into an LDO (low-dropout regulator). The Torex XC6215 is a low power consumption
Voltage regulator that provides a fix 3.3 Volt output. The components chosen are designed to
provide an efficient AC to DC conversion. The board is designed to connect directly to the AC
Power Cell via two 3-pin receptacles located at either end of the board. This LDO solution works
best with input voltages lower than 6 Volts AC.
Figure 4: Torex Power Management Boar
How it Works
The AC signal from the Harvester Board is rectified through a diode bridge and passed into a
Torex XC6215 low dropout regulator. A low-dropout regulator is a DC linear voltage regulator that
can regulated the output voltage even when the supply voltage is very close to the output voltage.
The user has the option to use the onboard capacitance for power storage, or bypass the storage
capacitors if all of the harvested energy is to be transferred off the PCB. This provides the user
with a stable DC power source.
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