Yes, certainly it would slow the turn on time, and that is a consideration indeed. Putting the filter on the input to the gate trigger supply will solve that, since then the capacitor will serve as a voltage source for the gate drive. And now I am wondering if it might be better to supply the gate driver circuit from the same power connection as the drain feed, instead of the acc switched connection. If the FET is biased off while the starting is going on that may be a better condition. When do the lights being controlled need to be switched on?@shortbus It seems like the gate of the FET fails (FET stays shorted). Could I replace zener with TVS, or is there any other way to fully protect Vgs from exceeding its maximum ratings?
@MisterBill2 Wouldn't shunt capacitor make the rise and fall time of the gate voltage greater? If not, what value would you suggest? I have trouble finding appropriate FET rated with 200V. Even with Vds of 200V, they still have Vgs rated at 25V max. And they are expensive (5€ per piece)
Studies showed that having your lights on made you safer even in daylight. But I'm not sure they ever proved it's safer if everyone has their lights on.And a separate question is if there is any real proof that DRLs actually make anything safer??
I know I can see cars further away during daylight hours if they have their headlights on. It helps with being able to see when it's clear to pass.And a separate question is if there is any real proof that DRLs actually make anything safer?? My guess is that it was a rule created totally based on the emotions of the unknowing folks, based on some skilled orator's bleatings.
What is absolutely certain is that DRLs take energy to light them, and that energy comes from fuel burned. And fuel burned reduces miles per gallon, thus increasing the pollution for every mile driven. Nothing is free, especially power, in cars.These guys sell bulbs and about the best they can say is that the value of DRLs is debatable and probably varies with location.
https://www.powerbulbs.com/us/blog/2016/09/purpose-of-daytime-running-lights
But yet here we are.Hello, I'm just reading any posts that look interesting, no intention of commenting on them,
by Aaron Carman
by Aaron Carman
by Aaron Carman
by Jake Hertz