LectricCircuit
- Apr 7, 2017
- 33
- Joined
- Apr 7, 2017
- Messages
- 33
wondering if anyone could suggest a schematic I can use to build a comparator circuit that will turn on a LED at 8.4v when two lithium ion cells are done charging in series. Thought of using a couple Zeners in series but that way produces a gradual glow as the voltage rises and isn't as precise. A comparator would be off until the on-state voltage is reached and then will turn on without the messy gradual glowing effect. Problem is I'm fairly new to electronics and I'm able to follow schematics and such but I don't know how to create my own circuit off the top of my head with all the equations and such. I have already built the charger and it charges the battery great and stops at 8.42v. Just looking to add the charge complete LED to my existing circuit if possible.