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Author Topic: Do I need shielded chokes for noise suppression  (Read 3331 times)

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Offline SimonTopic starter

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Re: Do I need shielded chokes for noise suppression
« Reply #25 on: November 20, 2018, 06:09:28 pm »
The fan has a 0-5V input with a pullup  :palm: and an open collector tacho, so the fans are not closed loop controlled (because they are shit) so with a change in supply voltage or other conditions the speed varies. So I do the speed control loop in my ECU. But the fan drive electronics is noisy.
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