Fast, smart and universal NiCd/NiMh battery charger
This is a project by Roberto Barrios at his Ham Projects EB4EQA Site.
Application Note - The MAX712 terminates fast charge by detecting zero voltage slope, while the MAX713 uses a negative voltage-slope detection scheme.
Fast-Charge Controllers - MAX712
The MAX712/MAX713 are powered by the DC source via an on-board +5V shunt regulator. They draw a maximum of 5µA from the battery when not charging.
- Charge 1 to 16 Series Cells
- Supply Battery's Load While Charging (Linear Mode)
- Fast Charge from C/4 to 4C Rate
- C/16 Trickle-Charge Rate
- Automatically Switch from Fast to Trickle Charge