Electronics > Beginners

Multiple LL N-Channel MOSFET's in Series

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TheDood:
I've been working with LT Spice, but it takes really long to run only a 5s simulation (about an hr). Any ways of making it faster? The task manager says it's only under a ~25% CPU load and it's an old laptop. I've changed the tolerances to 0.01 hoping it would speed it up, but if it did I sure couldn't tell lol. I see a "Simulation Speed" at the bottom, is there a way to bump it up?

T3sl4co1l:
Five seconds?  What are you trying to find that can't be learned in 1ms?

Tim

Zero999:
To answer the original question: yes, MOSFETs can be connected in series, in an arrangement known as a cascode, but it's a bit more tricky, than simply connecting them in parallel.
https://en.wikipedia.org/wiki/Cascode

For help, regarding LTSpice: please post the .asc file.

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