high current

I'm working on a remote start system for an older gm diesel vehicle and so far everything has worked great, but I've hit a stump that I just cant figure out. The engineers who designed the ignition switch of my truck though it would be a good idea to run starter solenoid power though the...

Hi, Usually most of the PCBs have solder masks but recently i have seen a PCB with only few tracks(high voltage/current) with solder mask open. when do I have to keep the solder mask open for traces?

I'm working on a DIY project where I need to control some 9V solenoid valves with an arduino. I don't have the tools to make a PCB myself, so i choosed to work on perfboards. Now, I have to connect power supply (MeanWell ) to the step down regulator (Polou D36V50F9) that powers the solenoid...

Hi All, For my work it is becoming more common for me to measure lower, and lower resistances. Megger has a really good manual on how to measure down to micro-ohms (for example to determine the quality of bus bar joints etc). I have found the 4-wire measurement to be very repeatable, and useful...