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9. Ambient temperature sensor
It senses the ambient temperature.
The sensor should be place opposite to the blower side of
the fuel cell stack. As is showed in system set up section.
10. DC/DC converter (Optional)
The DC/DC will regulate the output voltage for the
controller. It can step down the stack voltage (27.5V to
48V) to 12V for the fuel cell controller and other
peripheral parts.
11. Ultra capacitor bank (Optional)
It can supply power output during system
short-cir
(please refer to Short Circuit Unit for
more details), which could enable system con nuous
opera on without external power supply
Rated voltage: 50V
Capacitance: 1.25F
If regenera ve braking is required, please put a bigger
ultra capacitor bank to store this energy.
If a higher capacity ultra capacitor is used, you can
replace this set of capacitors. (Please note that the
maximum voltage of the fuel cell is 48V, so size your
ultra capacitors accordingly).
12. Blower controller
When no load is connected, turn off the blower controller
to reduce the power consumption of the stack.
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