1. D

    How to illuminate an LED regardless of voltage level (12VDC and 6VDC)

    I am trying to solve a scenario where I want an LED to illuminate regardless if its given 6VDC or 12VDC. I cannot control the voltages "given", so the circuit would start with a single DC source that alternates between 6 and 12. It would be more beneficial for the 6v input to be dimmer and the...
  2. S

    Generator and variable input set output

    Okay, so I am doing a stupid project. Lets say I have a small motor that I am going to be using as a generator. It can output up to 350w at 24vdc. I need something that can take ANY INPUT voltage dc and output it to 14.2v dc to charge a lead acid battery. I bought 2 boost converters off of ebay...
  3. V

    Choosing proper grounds for sensitive 5V electronics (vehicle project)

    Noob alert! I'm tinkering on my garage project, standard vehicle stuff - 12V lead acid battery, 3-phase stator, reg/rec. I would like to put few additions to its circuit. Being a rookie, I'm not sure how to approach this correctly in terms of providing safe 5V for these microcontrollers. I've...