Protection Circuit for High Voltage Spikes

Hardware Other Hardware
1

Hello,
I have a hybrid drone which runs by a gasoline generator and two 6S lipo battery in series. Generator sometimes make problems by sudden voltage spikes. So i want to protect my hardwares in the drone. Do you have any suggestion hardware/circuit for this kind of situation?
Thank you.

2

You could design a circuit based on using zener diode which can handle high current and bigger than 6S breakdown voltage.

3 Likes
3

Solder a transzorb (TVS=transient voltage supressor) in parallel.

1 Like
4

Will check into it. Thank you.

5

Hello, how can i calculate the tvs current?

6

Estimate it. Consider it as a fuse that must resist, with a weaker point elsewhere, such as a limiting supply or a cable melting. Other consideration is size: the biggest one fitting in the space you have.

7

I have 12S Baterry. So when the tvs is active lets say above 60V, will it be short circuit? Doesn’t it melt the diode?

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