Regarding car electronic devices that release the magic smoke, it is always a good idea to check the voltage on your car battery with running engine, to see if the Alternator is not putting out more voltage then normally. With running engine, the voltage should not exceed 14,5V. Back in the old days when a Alternator puts out more voltage then normal, the first things that blow up, where the incandescent light bulbs, now in modern cars with LED, the weakest component costs way more then a silly incandescent light bulb. Most car electronic devices that are installed by the car manufacturer have a good design, and have a TVS diode on the input to clamp high voltage or spikes, but this is not always the case when you add 3th party electronic devices to your car. In fact, some manuals of 3th party electronics described that you may only connect the devices after the engine is started, because during starting the engine, there is a huge power draw that cause the voltage to drop to a very low point followed by a surge. If the electronic device contains a battery, this surge will be damped like a capacitor does, but direct powered devices don't have that capability.
Hello and good evening, I’ve heard you mention DC rails a couple times and tried looking it up to see what exactly that is but can’t seem to find anything. Could you give a brief explanation.
A power rail is a circuit of a specific Voltage. There is usually a cpu / logic rail ~1.5-3V and there is an operating voltage rail which is 5V, 7V, 9v 12V etc.
Great video, would like to see a follow up with the replacement parts.
I will see what I can do!
Hi Better Biomed, would you be kind enough to start a series back to basics videos?
I have a whole Playlist called Biomed Basics
Biomed Basics: ruclips.net/p/PL5CYegjtMCQ4U0JiMgKLch69AxSyAYDMW
Regarding car electronic devices that release the magic smoke, it is always a good idea to check the voltage on your car battery with running engine, to see if the Alternator is not putting out more voltage then normally. With running engine, the voltage should not exceed 14,5V. Back in the old days when a Alternator puts out more voltage then normal, the first things that blow up, where the incandescent light bulbs, now in modern cars with LED, the weakest component costs way more then a silly incandescent light bulb. Most car electronic devices that are installed by the car manufacturer have a good design, and have a TVS diode on the input to clamp high voltage or spikes, but this is not always the case when you add 3th party electronic devices to your car. In fact, some manuals of 3th party electronics described that you may only connect the devices after the engine is started, because during starting the engine, there is a huge power draw that cause the voltage to drop to a very low point followed by a surge.
If the electronic device contains a battery, this surge will be damped like a capacitor does, but direct powered devices don't have that capability.
Almost any newer car should have an error for out of range voltage
Hello and good evening, I’ve heard you mention DC rails a couple times and tried looking it up to see what exactly that is but can’t seem to find anything. Could you give a brief explanation.
A power rail is a circuit of a specific Voltage. There is usually a cpu / logic rail ~1.5-3V and there is an operating voltage rail which is 5V, 7V, 9v 12V etc.
www.aboutmechanics.com/what-is-a-power-supply-rail.htm#:~:text=A%20power%20supply%20rail%20is,a%20common%20or%20return%20line.
Thank you!
Thank you!