garycollier
New Member
Hi folks I wonder if anyone could help me out with a circuit ?
:roll:
I have designed a simple slow NICAD charging circuit using the LM317 to charge a 5 cell NICAD battery pack at 9volts 700mA. For a Kirby caving lamp.
Instead of using a moving coil ammeter to monitor charge I would like to use a variable colour LED to monitor charging. With it changing from Red to Green as the battery charges.
I have looked around the web but to no avail yet. Does anyone have any ideas, advice or links ?
My electronics is a bit rusty.......
Thanks in advance,
:roll:
I have designed a simple slow NICAD charging circuit using the LM317 to charge a 5 cell NICAD battery pack at 9volts 700mA. For a Kirby caving lamp.
Instead of using a moving coil ammeter to monitor charge I would like to use a variable colour LED to monitor charging. With it changing from Red to Green as the battery charges.
I have looked around the web but to no avail yet. Does anyone have any ideas, advice or links ?
My electronics is a bit rusty.......
Thanks in advance,