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Fuel Cell Capacitance

Hi. Work for Shuttle Program (NASA). Need some help in impeadance analyses for Orbiter Fuel Cell to characterize equivalent circuit model for KOH cell stack. If a fuel cell shares a load with a power supply, how do you protect the fuel cell from reverse current? (we saw this in lab)

Is there any real capacitance to absorb over voltage spikes?

Sergio Vazquez
Boeing - Huntington Beach, California, USA
2004

I think, since you are only looking to be sure current only flows one way you'd need a diode, or something to that effect. This question seems kinda out of place here.

Marc Banks
- Elizabeth City, North Carolina
2004

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